Technical Analysis of MLTBackdoor
In May 2026, a new malware family named MLTBackdoor was identified, likely leveraged by ransomware-related threat actors to establish footholds for lateral movement. Delivered through multi-stage ClickFix infection chains targeting automotive-related web pages, this backdoor employs sophisticated obfuscation techniques including Mixed Boolean-Arithmetic and Control Flow Flattening. MLTBackdoor features indirect system calls, API hashing, and extensive anti-analysis checks that detect debuggers and sandboxed environments. Its capabilities include filesystem operations and a powerful Beacon Object File loader that dynamically expands functionality. The malware uses custom encrypted binary protocols over TLS with Elliptic-Curve Diffie-Hellman key exchange for command-and-control communications. Additionally, it implements a deterministic date-based Domain Generation Algorithm to maintain persistence when hardcoded C2 domains become unreachable, demonstrating advanced resilience against takedown attempts.
AI Analysis
Technical Summary
MLTBackdoor is a sophisticated backdoor malware family identified in May 2026, likely leveraged by ransomware-affiliated threat actors to facilitate lateral movement within compromised networks. It is distributed through multi-stage infection chains involving ClickFix, specifically targeting automotive-related web pages. The malware uses advanced obfuscation methods such as Mixed Boolean-Arithmetic and Control Flow Flattening, along with indirect system calls and API hashing to hinder analysis. It incorporates extensive anti-analysis techniques that detect debuggers and sandbox environments. Functionally, MLTBackdoor performs filesystem operations and features a powerful Beacon Object File loader that dynamically expands its functionality. For command-and-control communications, it uses custom encrypted binary protocols over TLS secured by Elliptic-Curve Diffie-Hellman key exchange. To enhance resilience, it employs a deterministic date-based Domain Generation Algorithm, enabling it to maintain persistence when hardcoded C2 domains are unreachable, complicating takedown efforts.
Potential Impact
MLTBackdoor enables threat actors to establish persistent footholds and perform lateral movement within targeted environments, particularly those related to the automotive sector. Its sophisticated evasion and obfuscation techniques reduce the likelihood of detection and analysis, increasing the difficulty of incident response. The dynamic loading capabilities and encrypted communications enhance its operational flexibility and stealth. The use of a domain generation algorithm improves its resilience against disruption of command-and-control infrastructure. While no known exploits in the wild are reported, its association with ransomware actors suggests potential for facilitating ransomware deployment and related malicious activities.
Mitigation Recommendations
No official patch or remediation is available as this is malware rather than a software vulnerability. Mitigation should focus on detection and prevention measures such as monitoring for indicators of compromise related to ClickFix infection chains and MLTBackdoor behaviors. Network defenders should leverage threat intelligence sources, including the referenced Zscaler technical analysis, to update detection signatures and heuristics. Employing sandbox evasion detection and monitoring encrypted TLS traffic patterns may aid in identifying infections. Since this malware targets automotive-related web pages, organizations in this sector should increase vigilance. Patch status is not applicable; no vendor advisory or fix exists for this malware.
Indicators of Compromise
- domain: thomphon.com
- domain: cwrtwright.com
- domain: carrolc.com
- hash: 1d09357b6a096fdc35cd5c873eed15665d6b3c879d20c8cf01e6bca0005512cf
- hash: 2cd88d5280a61714836f5f07a16df190911c5b952af2998dbbcda910b3b1c494
- hash: 01b43dad62e56164771db696827a30ae
- hash: b14e1f931f602b1e1985d1362db0e17dd2d2131f
- hash: 08060143ea9b55b480746b415af22e3a
- hash: 4b7dbb7d5bc8938747b39faf602d85c3587ae261
- hash: 0dfe9d56066fd9005f210a903645ed90
- hash: b148626849c11dd5b3230632a38a6302
- hash: ddd151435513861b89a69bccb69c5fc5
- hash: 15d1002d9935fbfc9dfc65eb70fe4ecc0943c784
- hash: 8788c242a19de47af76dfbea59f938ded51e8147
- hash: e5c4e634b2f443f783cae1b5e8247a1069df0c9f
- hash: 0ca2edf9982f58e63cc49ba69fb9a88762d1f220ed9482810b512d4add0f8f0b
- hash: 0f7463aecc3920f9e2b32ab9d77861a9e69a3e8aa28d06b4602195623312331d
- hash: 1e41c7bfaa6aa3b93b6cc024274a10e33f3e12fe7c98c1db387ef8927f9d1984
- hash: 46b2155c1e71b840d4b7a2e94410b89a61e2446523e6f497206d402eb02e0e93
- hash: 4c357a29b202b77e7db190d359ead2dfd3f8869c6808b96bfa8bee82525bb2a2
- hash: 57cfa4cbf3d6cbd13973bbf0625bfa6d20677abb0a6e6bec9a6bf587799b56fa
- hash: 6870e3bbf2447c96d21682caf943cf31c2e8c21c8cfb91a5092eab1c9e5f19ae
- hash: 687968b820fd7a6bedb03d644410c663b1720ad76519e2dcf98d61df498470df
- hash: 75635009a00cb26d2f532ad974ede59785a18e4b30132a1f585108589394ba5a
- hash: 9c8384f93b9d347a716ea3e55b9a01250473f667b95d467126c048256b0049e9
- hash: 9e52cc90cff150abe21f0a6440e86e0a99ff383b81061b96def8948e21d0ac66
- hash: 9e8777661a1ad9c983f03060f0a04a3244daac8c3639b3eb1bbce29355bc6c10
- hash: a5a5b6257304eefe5212edfd8c0ad27f77357c5046a7acb8eb7ba72ed4bad9e0
- hash: ab0541672b57cd3b7e8c973fb9fcbecd18b7fe14c1c2f571e7a2f2921919b500
- hash: ac66c2d47cdefb221822b9074c9810434e8da702a0694139aa9177557e6b292b
- hash: b2e1f5aedb049092135e90c153f5bd386aa81cd2df355d90912dcba33c3176e5
- hash: b32461077b2e04145b87e9b5177a331dfd2248b81570aa96b9a302dffe643f70
- hash: ced6b0f44410f6133ad63b61e04613a8b56cc3338d7b34497540e9541163e7ec
- hash: d34e4038c5c80728f9648ba84833f69bc1ccea82e2e8e748b7b7f02fb687b92b
- hash: d51ce268a585657226510586e47c58a47cee2f2bf2049008760c58dc4e6ba650
- hash: d8f291a459c1acc53f9c8dccb1049bfe2d3b00c7a86d50542dc7fd7b0628ea6a
- hash: e063358d88290c5d05d58594da341690024cf7fa57408a3874899f10e56d8bc8
- hash: ed80408eb9092301e628791e7a9a2e86c6f496a9afd7b56d7c1a1684b1b87251
- hash: fc8649547ad0ece93ad82de75cb6b875be0873774de89b78546c9a66d2043087
- hash: fe8557d454adc7a91162495628d269738b92b4b5d7e5d620fc3f38c27a9a41a7
- url: http://powwowski.com/payloads/update.zip
- url: https://hrs2y15sungu.com/d&pushd
- domain: hrs2y15sungu.com
- domain: powwowski.com
Technical Analysis of MLTBackdoor
Description
In May 2026, a new malware family named MLTBackdoor was identified, likely leveraged by ransomware-related threat actors to establish footholds for lateral movement. Delivered through multi-stage ClickFix infection chains targeting automotive-related web pages, this backdoor employs sophisticated obfuscation techniques including Mixed Boolean-Arithmetic and Control Flow Flattening. MLTBackdoor features indirect system calls, API hashing, and extensive anti-analysis checks that detect debuggers and sandboxed environments. Its capabilities include filesystem operations and a powerful Beacon Object File loader that dynamically expands functionality. The malware uses custom encrypted binary protocols over TLS with Elliptic-Curve Diffie-Hellman key exchange for command-and-control communications. Additionally, it implements a deterministic date-based Domain Generation Algorithm to maintain persistence when hardcoded C2 domains become unreachable, demonstrating advanced resilience against takedown attempts.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
MLTBackdoor is a sophisticated backdoor malware family identified in May 2026, likely leveraged by ransomware-affiliated threat actors to facilitate lateral movement within compromised networks. It is distributed through multi-stage infection chains involving ClickFix, specifically targeting automotive-related web pages. The malware uses advanced obfuscation methods such as Mixed Boolean-Arithmetic and Control Flow Flattening, along with indirect system calls and API hashing to hinder analysis. It incorporates extensive anti-analysis techniques that detect debuggers and sandbox environments. Functionally, MLTBackdoor performs filesystem operations and features a powerful Beacon Object File loader that dynamically expands its functionality. For command-and-control communications, it uses custom encrypted binary protocols over TLS secured by Elliptic-Curve Diffie-Hellman key exchange. To enhance resilience, it employs a deterministic date-based Domain Generation Algorithm, enabling it to maintain persistence when hardcoded C2 domains are unreachable, complicating takedown efforts.
Potential Impact
MLTBackdoor enables threat actors to establish persistent footholds and perform lateral movement within targeted environments, particularly those related to the automotive sector. Its sophisticated evasion and obfuscation techniques reduce the likelihood of detection and analysis, increasing the difficulty of incident response. The dynamic loading capabilities and encrypted communications enhance its operational flexibility and stealth. The use of a domain generation algorithm improves its resilience against disruption of command-and-control infrastructure. While no known exploits in the wild are reported, its association with ransomware actors suggests potential for facilitating ransomware deployment and related malicious activities.
Mitigation Recommendations
No official patch or remediation is available as this is malware rather than a software vulnerability. Mitigation should focus on detection and prevention measures such as monitoring for indicators of compromise related to ClickFix infection chains and MLTBackdoor behaviors. Network defenders should leverage threat intelligence sources, including the referenced Zscaler technical analysis, to update detection signatures and heuristics. Employing sandbox evasion detection and monitoring encrypted TLS traffic patterns may aid in identifying infections. Since this malware targets automotive-related web pages, organizations in this sector should increase vigilance. Patch status is not applicable; no vendor advisory or fix exists for this malware.
Technical Details
- Author
- AlienVault
- Tlp
- white
- References
- ["https://www.zscaler.com/blogs/security-research/technical-analysis-mltbackdoor"]
- Adversary
- null
- Pulse Id
- 6a28738628b044b8202032a9
- Threat Score
- null
Indicators of Compromise
Domain
| Value | Description | Copy |
|---|---|---|
domainthomphon.com | — | |
domaincwrtwright.com | — | |
domaincarrolc.com | — | |
domainhrs2y15sungu.com | — | |
domainpowwowski.com | — |
Hash
| Value | Description | Copy |
|---|---|---|
hash1d09357b6a096fdc35cd5c873eed15665d6b3c879d20c8cf01e6bca0005512cf | — | |
hash2cd88d5280a61714836f5f07a16df190911c5b952af2998dbbcda910b3b1c494 | — | |
hash01b43dad62e56164771db696827a30ae | — | |
hashb14e1f931f602b1e1985d1362db0e17dd2d2131f | — | |
hash08060143ea9b55b480746b415af22e3a | — | |
hash4b7dbb7d5bc8938747b39faf602d85c3587ae261 | — | |
hash0dfe9d56066fd9005f210a903645ed90 | — | |
hashb148626849c11dd5b3230632a38a6302 | — | |
hashddd151435513861b89a69bccb69c5fc5 | — | |
hash15d1002d9935fbfc9dfc65eb70fe4ecc0943c784 | — | |
hash8788c242a19de47af76dfbea59f938ded51e8147 | — | |
hashe5c4e634b2f443f783cae1b5e8247a1069df0c9f | — | |
hash0ca2edf9982f58e63cc49ba69fb9a88762d1f220ed9482810b512d4add0f8f0b | — | |
hash0f7463aecc3920f9e2b32ab9d77861a9e69a3e8aa28d06b4602195623312331d | — | |
hash1e41c7bfaa6aa3b93b6cc024274a10e33f3e12fe7c98c1db387ef8927f9d1984 | — | |
hash46b2155c1e71b840d4b7a2e94410b89a61e2446523e6f497206d402eb02e0e93 | — | |
hash4c357a29b202b77e7db190d359ead2dfd3f8869c6808b96bfa8bee82525bb2a2 | — | |
hash57cfa4cbf3d6cbd13973bbf0625bfa6d20677abb0a6e6bec9a6bf587799b56fa | — | |
hash6870e3bbf2447c96d21682caf943cf31c2e8c21c8cfb91a5092eab1c9e5f19ae | — | |
hash687968b820fd7a6bedb03d644410c663b1720ad76519e2dcf98d61df498470df | — | |
hash75635009a00cb26d2f532ad974ede59785a18e4b30132a1f585108589394ba5a | — | |
hash9c8384f93b9d347a716ea3e55b9a01250473f667b95d467126c048256b0049e9 | — | |
hash9e52cc90cff150abe21f0a6440e86e0a99ff383b81061b96def8948e21d0ac66 | — | |
hash9e8777661a1ad9c983f03060f0a04a3244daac8c3639b3eb1bbce29355bc6c10 | — | |
hasha5a5b6257304eefe5212edfd8c0ad27f77357c5046a7acb8eb7ba72ed4bad9e0 | — | |
hashab0541672b57cd3b7e8c973fb9fcbecd18b7fe14c1c2f571e7a2f2921919b500 | — | |
hashac66c2d47cdefb221822b9074c9810434e8da702a0694139aa9177557e6b292b | — | |
hashb2e1f5aedb049092135e90c153f5bd386aa81cd2df355d90912dcba33c3176e5 | — | |
hashb32461077b2e04145b87e9b5177a331dfd2248b81570aa96b9a302dffe643f70 | — | |
hashced6b0f44410f6133ad63b61e04613a8b56cc3338d7b34497540e9541163e7ec | — | |
hashd34e4038c5c80728f9648ba84833f69bc1ccea82e2e8e748b7b7f02fb687b92b | — | |
hashd51ce268a585657226510586e47c58a47cee2f2bf2049008760c58dc4e6ba650 | — | |
hashd8f291a459c1acc53f9c8dccb1049bfe2d3b00c7a86d50542dc7fd7b0628ea6a | — | |
hashe063358d88290c5d05d58594da341690024cf7fa57408a3874899f10e56d8bc8 | — | |
hashed80408eb9092301e628791e7a9a2e86c6f496a9afd7b56d7c1a1684b1b87251 | — | |
hashfc8649547ad0ece93ad82de75cb6b875be0873774de89b78546c9a66d2043087 | — | |
hashfe8557d454adc7a91162495628d269738b92b4b5d7e5d620fc3f38c27a9a41a7 | — |
Url
| Value | Description | Copy |
|---|---|---|
urlhttp://powwowski.com/payloads/update.zip | — | |
urlhttps://hrs2y15sungu.com/d&pushd | — |
Threat ID: 6a2942ce8dd33fbd852cc19e
Added to database: 6/10/2026, 10:56:14 AM
Last enriched: 6/10/2026, 11:11:16 AM
Last updated: 6/10/2026, 2:05:30 PM
Views: 9
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