FlowerStorm unleashes the KrakVM: PhaaS operators turn to VM-based obfuscation
FlowerStorm is a widely known Phishing-As-A-Service (PhaaS) attack kit that has been active since at least mid-2024, increasingly in large scale campaigns. FlowerStorm performs targeted, complex collection of a victim’s credentials, including the management of multi-factor authentication (MFA).
AI Analysis
Technical Summary
FlowerStorm is a phishing malware platform that facilitates large-scale credential harvesting, including bypassing MFA protections. It uses KrakVM, a virtual machine-based obfuscation method, to complicate analysis and detection. The attack vector involves phishing emails with HTML attachments, consistent with T1566 (phishing). This PhaaS kit has been active since mid-2024 and continues to evolve its evasion techniques.
Potential Impact
The primary impact is unauthorized credential theft, including credentials protected by MFA, which can lead to account compromise and subsequent unauthorized access to victim systems or services. The use of VM-based obfuscation increases the difficulty of detection and analysis, potentially prolonging the window of exposure for victims.
Mitigation Recommendations
As this is a phishing malware campaign rather than a software vulnerability, no patches or official fixes exist. Organizations should focus on user awareness training to recognize phishing attempts, implement strong email filtering, and employ additional detection mechanisms for obfuscated malware. Monitoring for phishing indicators and promptly responding to suspected phishing emails is recommended.
Indicators of Compromise
- domain: 6182120286.my.id
- domain: alexperu.courtfilecloud.com
- domain: 7250102277.cfd
- domain: 5832068083.cyou
- domain: 7840190445.cyou
- domain: bafybeiclfnumyd3aztwl2xjz5o6cfw4fqepqz6a6uow3dig57pf5najq2u.ipfs.w3s.link
- domain: 5348785839.cfd
- domain: rdaol.dreamsintheframe.de
- domain: dfjxt.patienceintherain.de
- domain: pkxza.ruminatingbrook.de
- domain: vvbea.builtinlayers.de
- domain: uvehh.digitalsuccessframeworks.de
- domain: pozao.clearconceptsdesign.de
- domain: vunbp.scalableplatforms.de
- domain: dpqcm.solidreputation.de
- domain: ottm.secureuserguard.de
- domain: sjask.reliablevisibility.de
- hash: b0ed4da928344ac2972a05ded086e4da
- domain: 1391604445.cfd
- domain: 1419993777.cyou
- domain: 1518076290.cyou
- domain: 1569742347.cfd
- domain: 1969421924.cyou
- domain: 2008377162.cfd
- domain: 2067612207.cfd
- domain: 2143835084.cfd
- domain: 5237741854.cfd
- domain: 5334635671.cfd
- domain: 5531648314.cfd
- domain: 5624221719.cfd
- domain: 6018258857.cfd
- domain: 6185945827.sbs
- domain: 6264277690.cfd
- domain: 6326889358ghf.cyou
- domain: 6438259665.cfd
- domain: 6837577840.cfd
- domain: 6970793981ad.cyou
- domain: 7588085895.cyou
- domain: 7622350912.cfd
- domain: 7766360391.cfd
- domain: 7983520156.cyou
- domain: 8103841751.cyou
- domain: 8191769809.cfd
- domain: amaxelectronics.co.za
- domain: asphalt9nitroo.my.id
- domain: mkreply2024.my.id
- domain: outrageousorganisation.com.au
- domain: 04qq.digitalcompetitiveedge.de
- domain: 2059746795x.diflucan50.store
- domain: ableg.docufiled.com
- domain: albert.uscourtfilestorage.com
- domain: bafybeias2uivmggzl2gqjipqgcarbgyvakvk6yljxbcv4a3qroxcujzqaq.ipfs.w3s.link
- domain: bafybeid6ec6mwvrywozlhpblgzl76qtrcqqx26ryk2cptwtykroufqn4y4.ipfs.w3s.link
- domain: bill.cloudbusinessfiles.com
- domain: bombom.courtdocumentshub.com
- domain: brenda.5hawb1t.site
- domain: cfur.invoclegal.com
- domain: china.bureauofcourts.com
- domain: chr.authgsyuuite.com
- domain: chr.v0k3.space
- domain: chris.ggsuitauth.site
- domain: chris1.k5l1m.cfd
- domain: don.feiracultural.de
- domain: dr.k5l1m.cfd
- domain: empire.appdocstorage.com
- domain: evszs.efficiencyworks.de
- domain: hbfnq.strongsystems.de
- domain: irigc.precisionontheweb.de
- domain: jeny.ggsuitauth.site
- domain: lifeofa.k5l1m.cfd
- domain: m.chantstraditionnels.de
- domain: msg.uscourtfiles.com
- domain: muchino.database-server.com
- domain: nnqsy.secureenvirotrust.de
- domain: noanme.courtfilecloud.com
- domain: office.bureaucloudservices.com
- domain: oztff.valueguardians.de
- domain: qmduj.smoothhost.de
- domain: rexjf.digitaltrustbase.de
- domain: tlmsh.germanidentityhub.de
- domain: towbb.digitalproficiency.de
- domain: unix.wearableartbags.de
- domain: valid.seashellshoetreasures.de
- domain: woovw.maximizevisibility.de
- domain: y.k5l1m.cfd
- domain: zpma.uscourtdocuments.com
- domain: zrqdi.dynamicgrowthsystems.de
FlowerStorm unleashes the KrakVM: PhaaS operators turn to VM-based obfuscation
Description
FlowerStorm is a widely known Phishing-As-A-Service (PhaaS) attack kit that has been active since at least mid-2024, increasingly in large scale campaigns. FlowerStorm performs targeted, complex collection of a victim’s credentials, including the management of multi-factor authentication (MFA).
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FlowerStorm is a phishing malware platform that facilitates large-scale credential harvesting, including bypassing MFA protections. It uses KrakVM, a virtual machine-based obfuscation method, to complicate analysis and detection. The attack vector involves phishing emails with HTML attachments, consistent with T1566 (phishing). This PhaaS kit has been active since mid-2024 and continues to evolve its evasion techniques.
Potential Impact
The primary impact is unauthorized credential theft, including credentials protected by MFA, which can lead to account compromise and subsequent unauthorized access to victim systems or services. The use of VM-based obfuscation increases the difficulty of detection and analysis, potentially prolonging the window of exposure for victims.
Mitigation Recommendations
As this is a phishing malware campaign rather than a software vulnerability, no patches or official fixes exist. Organizations should focus on user awareness training to recognize phishing attempts, implement strong email filtering, and employ additional detection mechanisms for obfuscated malware. Monitoring for phishing indicators and promptly responding to suspected phishing emails is recommended.
Technical Details
- Author
- AlienVault
- Tlp
- white
- References
- ["https://sublime.security/blog/flowerstorm-unleashes-the-krakvm-phaas-operators-turn-to-vm-based-obfuscation/"]
- Adversary
- null
- Pulse Id
- 6a0b5e378b3635e94b3b7656
- Threat Score
- null
Indicators of Compromise
Domain
| Value | Description | Copy |
|---|---|---|
domain6182120286.my.id | — | |
domainalexperu.courtfilecloud.com | — | |
domain7250102277.cfd | — | |
domain5832068083.cyou | — | |
domain7840190445.cyou | — | |
domainbafybeiclfnumyd3aztwl2xjz5o6cfw4fqepqz6a6uow3dig57pf5najq2u.ipfs.w3s.link | — | |
domain5348785839.cfd | — | |
domainrdaol.dreamsintheframe.de | — | |
domaindfjxt.patienceintherain.de | — | |
domainpkxza.ruminatingbrook.de | — | |
domainvvbea.builtinlayers.de | — | |
domainuvehh.digitalsuccessframeworks.de | — | |
domainpozao.clearconceptsdesign.de | — | |
domainvunbp.scalableplatforms.de | — | |
domaindpqcm.solidreputation.de | — | |
domainottm.secureuserguard.de | — | |
domainsjask.reliablevisibility.de | — | |
domain1391604445.cfd | — | |
domain1419993777.cyou | — | |
domain1518076290.cyou | — | |
domain1569742347.cfd | — | |
domain1969421924.cyou | — | |
domain2008377162.cfd | — | |
domain2067612207.cfd | — | |
domain2143835084.cfd | — | |
domain5237741854.cfd | — | |
domain5334635671.cfd | — | |
domain5531648314.cfd | — | |
domain5624221719.cfd | — | |
domain6018258857.cfd | — | |
domain6185945827.sbs | — | |
domain6264277690.cfd | — | |
domain6326889358ghf.cyou | — | |
domain6438259665.cfd | — | |
domain6837577840.cfd | — | |
domain6970793981ad.cyou | — | |
domain7588085895.cyou | — | |
domain7622350912.cfd | — | |
domain7766360391.cfd | — | |
domain7983520156.cyou | — | |
domain8103841751.cyou | — | |
domain8191769809.cfd | — | |
domainamaxelectronics.co.za | — | |
domainasphalt9nitroo.my.id | — | |
domainmkreply2024.my.id | — | |
domainoutrageousorganisation.com.au | — | |
domain04qq.digitalcompetitiveedge.de | — | |
domain2059746795x.diflucan50.store | — | |
domainableg.docufiled.com | — | |
domainalbert.uscourtfilestorage.com | — | |
domainbafybeias2uivmggzl2gqjipqgcarbgyvakvk6yljxbcv4a3qroxcujzqaq.ipfs.w3s.link | — | |
domainbafybeid6ec6mwvrywozlhpblgzl76qtrcqqx26ryk2cptwtykroufqn4y4.ipfs.w3s.link | — | |
domainbill.cloudbusinessfiles.com | — | |
domainbombom.courtdocumentshub.com | — | |
domainbrenda.5hawb1t.site | — | |
domaincfur.invoclegal.com | — | |
domainchina.bureauofcourts.com | — | |
domainchr.authgsyuuite.com | — | |
domainchr.v0k3.space | — | |
domainchris.ggsuitauth.site | — | |
domainchris1.k5l1m.cfd | — | |
domaindon.feiracultural.de | — | |
domaindr.k5l1m.cfd | — | |
domainempire.appdocstorage.com | — | |
domainevszs.efficiencyworks.de | — | |
domainhbfnq.strongsystems.de | — | |
domainirigc.precisionontheweb.de | — | |
domainjeny.ggsuitauth.site | — | |
domainlifeofa.k5l1m.cfd | — | |
domainm.chantstraditionnels.de | — | |
domainmsg.uscourtfiles.com | — | |
domainmuchino.database-server.com | — | |
domainnnqsy.secureenvirotrust.de | — | |
domainnoanme.courtfilecloud.com | — | |
domainoffice.bureaucloudservices.com | — | |
domainoztff.valueguardians.de | — | |
domainqmduj.smoothhost.de | — | |
domainrexjf.digitaltrustbase.de | — | |
domaintlmsh.germanidentityhub.de | — | |
domaintowbb.digitalproficiency.de | — | |
domainunix.wearableartbags.de | — | |
domainvalid.seashellshoetreasures.de | — | |
domainwoovw.maximizevisibility.de | — | |
domainy.k5l1m.cfd | — | |
domainzpma.uscourtdocuments.com | — | |
domainzrqdi.dynamicgrowthsystems.de | — |
Hash
| Value | Description | Copy |
|---|---|---|
hashb0ed4da928344ac2972a05ded086e4da | — |
Threat ID: 6a0b5fb9ec166c07b0e30b01
Added to database: 5/18/2026, 6:51:37 PM
Last enriched: 5/18/2026, 7:06:33 PM
Last updated: 5/20/2026, 4:25:28 PM
Views: 27
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