Malicious code in pfp-forms-mobile-sme-group-tiles (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (73a17b2afbbc0ab147312c16ab39ed32f31061c185ff2dedbea76bdf5940dd2a) On require(), _polyfill.js selects a platform-specific path, retrieves an opaque binary over HTTPS from one of several *.workers.dev hosts whose names are assembled at runtime by joining split string fragments, writes it to /tmp or %TEMP% under a decoy name such as dotnet_diag_<rand>.exe or.cache_<rand>, sets mode 0755 on POSIX, and spawns it detached via /bin/sh -c or cmd. A DNS-over-TXT fallback channel reassembles a base64 payload from numbered TXT records under *.dl.well1.site. Hostnames are constructed from arrays of fragments to evade string search, and a cooldown state file gates re-execution. The package advertises a 'merchant service layer' role and ships no legitimate need for a hidden native payload dropper. ## Source: ghsa-malware (01be161bf71b08510ee30bb6263e865bf9022ea2b966cfd457fd7d1ca5719cb6) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
AI Analysis
Technical Summary
The pfp-forms-mobile-sme-group-tiles npm package version 20.3.6 includes malicious functionality where, upon require(), a platform-specific path is selected to download an opaque binary from dynamically constructed *.workers.dev hosts. This binary is saved to temporary locations with decoy names and executed detached via shell commands. Additionally, a DNS-over-TXT fallback mechanism reconstructs a base64 payload from TXT records under *.dl.well1.site. Hostnames are obfuscated by joining string fragments at runtime to evade static detection. The package claims to provide a merchant service layer but has no legitimate need for this hidden native payload dropper behavior.
Potential Impact
This malicious package can execute arbitrary native code on the host system by downloading and running a hidden binary payload. This behavior can lead to system compromise, unauthorized code execution, and potential persistence. The obfuscation and fallback mechanisms increase the difficulty of detection and analysis.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should avoid using version 20.3.6 of pfp-forms-mobile-sme-group-tiles. Remove any installations of this package and audit systems for the presence of the dropped binaries or suspicious processes. Monitor for network connections to suspicious *.workers.dev or *.dl.well1.site domains. Since no vendor advisory or patch is available, patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Malicious code in pfp-forms-mobile-sme-group-tiles (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (73a17b2afbbc0ab147312c16ab39ed32f31061c185ff2dedbea76bdf5940dd2a) On require(), _polyfill.js selects a platform-specific path, retrieves an opaque binary over HTTPS from one of several *.workers.dev hosts whose names are assembled at runtime by joining split string fragments, writes it to /tmp or %TEMP% under a decoy name such as dotnet_diag_<rand>.exe or.cache_<rand>, sets mode 0755 on POSIX, and spawns it detached via /bin/sh -c or cmd. A DNS-over-TXT fallback channel reassembles a base64 payload from numbered TXT records under *.dl.well1.site. Hostnames are constructed from arrays of fragments to evade string search, and a cooldown state file gates re-execution. The package advertises a 'merchant service layer' role and ships no legitimate need for a hidden native payload dropper. ## Source: ghsa-malware (01be161bf71b08510ee30bb6263e865bf9022ea2b966cfd457fd7d1ca5719cb6) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The pfp-forms-mobile-sme-group-tiles npm package version 20.3.6 includes malicious functionality where, upon require(), a platform-specific path is selected to download an opaque binary from dynamically constructed *.workers.dev hosts. This binary is saved to temporary locations with decoy names and executed detached via shell commands. Additionally, a DNS-over-TXT fallback mechanism reconstructs a base64 payload from TXT records under *.dl.well1.site. Hostnames are obfuscated by joining string fragments at runtime to evade static detection. The package claims to provide a merchant service layer but has no legitimate need for this hidden native payload dropper behavior.
Potential Impact
This malicious package can execute arbitrary native code on the host system by downloading and running a hidden binary payload. This behavior can lead to system compromise, unauthorized code execution, and potential persistence. The obfuscation and fallback mechanisms increase the difficulty of detection and analysis.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should avoid using version 20.3.6 of pfp-forms-mobile-sme-group-tiles. Remove any installations of this package and audit systems for the presence of the dropped binaries or suspicious processes. Monitor for network connections to suspicious *.workers.dev or *.dl.well1.site domains. Since no vendor advisory or patch is available, patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12413
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a73574fbf8831d53915a58b
Added to database: 08/05/2026, 15:31:27 UTC
Last enriched: 08/05/2026, 17:46:45 UTC
Last updated: 09/11/2026, 12:31:58 UTC
Views: 20
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