MALICIOUS — virussign.com_af6b02fd38a510e24ec77261bbf72c30.vir
MALICIOUS — virussign.com_af6b02fd38a510e24ec77261bbf72c30.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the LmJfa4pdRVd family. 6 of 52 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
356baec878dfdbb5c219612836249e84bc5b67297282598e045979b0a144fa17 - SHA-1:
e492bd2d115f107a199d2c712a531d6335ec9a59 - MD5:
af6b02fd38a510e24ec77261bbf72c30 - imphash:
e60d0e6577962a1096407913ed128742 - ssdeep:
3072:IyrN/sVywaEj1UsPyrN/sVywaEj1UsEOBYJyBjWpoJPSGv1Zz7G/1cDEtX:Nh9wv1U7h9wv1Ut32jWH6yyc - TLSH:
T1F141120BAB12E5F4C0E77C841829E18DB813DF5C89359DC458122FAF410DB6BBAE594E - Submitted as: virussign.com_af6b02fd38a510e24ec77261bbf72c30.vir
- File type: pe · Size: 184832 bytes
- Verdict: malicious (100/100) · Family: LmJfa4pdRVd
Source: VirusSign · first seen 2026-07-31T00:00:00.000Z · SHA-256 verified
Detections (6 of 52 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Ransomware.Somhoveran-9870372-0
- Detect It Easy (packer/type): DIE:UPX 1.24
- Kaspersky (KVRT): Worm.Win32.Wenper.b
- Microsoft Defender: Trojan:Win32/Vindor!pz
- Emsisoft (Emergency Kit): Gen:Trojan.ShellHook.lmJfa4pdRVd
MITRE ATT&CK
Why this verdict
The malicious score of 100/100 is the fusion of 9 weighted signals:
- ClamAV (daily) flagged Win.Ransomware.Somhoveran-9870372-0 (rule
Win.Ransomware.Somhoveran-9870372-0) - engine signal, weight 0.90, confidence 0.95 - Dropped a malicious payload (Somhoveran): fa46ffc4741fd9be77f5873865adf15e575c657983df805a605644238570a950 - dynamic signal, weight 0.80, confidence 0.90
- Memory forensics: 5 finding(s), e.g. RWX/private injected region in taskhostw.exe (pid 8044) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - 1 behavioral detection(s): Windows Service Installation [medium] (rule
tl-service-install) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 35 external host(s) at runtime (22 HTTP) - network signal, weight 0.40, confidence 0.80
- Detect It Easy (packer/type) flagged DIE:UPX 1.24 (rule
DIE:UPX 1.24) - engine signal, weight 0.35, confidence 0.70 - Packing/obfuscation: UPX, high-entropy-sections:UPX1, UPX 1.24 - static signal, weight 0.25, confidence 0.55
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
311 behavior events · 2 ATT&CK techniques · 4 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- settings-win.data.microsoft.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
Dropped files
- /opt/CAPEv2/storage/analyses/30423/files/fa46ffc4741fd9be77f5873865adf15e575c657983df805a605644238570a950 -
fa46ffc4741fd9be77f5873865adf15e575c657983df805a605644238570a950 - /opt/CAPEv2/storage/analyses/30423/files/cc0a1afcb170cec056ea02c153a72e5325d7895c4151ea5b6be5bc73bfee3bc0 -
cc0a1afcb170cec056ea02c153a72e5325d7895c4151ea5b6be5bc73bfee3bc0 - /opt/CAPEv2/storage/analyses/30423/files/3fbe0a2026f619c691b523fc408e90f8b46b698f3791d0007bbe72b5074f8628 -
3fbe0a2026f619c691b523fc408e90f8b46b698f3791d0007bbe72b5074f8628 - /opt/CAPEv2/storage/analyses/30423/files/f87b3feec99dce2cebb9a2c2b06b0b6f1240e4201ca14f03796d9ab6d67731ed -
f87b3feec99dce2cebb9a2c2b06b0b6f1240e4201ca14f03796d9ab6d67731ed
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/2cbcf400-ac8d-4d86-9d69-c7f0dff56d2e/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/2cbcf400-ac8d-4d86-9d69-c7f0dff56d2e?P1=1787084570&P2=404&P3=2&P4=b8pUtHGSLRMDKIqcUKEqKy9b7pE3r%2fpwzvMySY5lz%2bFmMH6FM0p01CztUO1x2XxzHmbdGXYyOovA3b4zQ56NzA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 57.155.101.212
- 4.150.223.108
- 20.247.184.142
- 4.230.171.124
- 40.84.85.40
- 135.233.95.144
- 74.178.240.51
- 20.236.44.162
- 52.123.128.14
- 40.104.4.2
- 20.42.65.94
- 172.178.240.161
- 203.26.79.13
- 72.145.35.112
- 20.165.94.46
- 52.148.114.188
- 52.110.12.47
- 52.110.12.45
More LmJfa4pdRVd samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report