MALICIOUS — virussign.com_bdf1a4f3cee0c8e4b1ef3c3d5795b880.vir
MALICIOUS — virussign.com_bdf1a4f3cee0c8e4b1ef3c3d5795b880.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Aenjaris family. 6 of 55 detection engines flagged it, exhibiting 5 ATT&CK techniques.
Identification
- SHA-256:
719ba73c5473dab222fb5caae0de2bff0279471e5962d5494d387aa43bf5d3b0 - SHA-1:
7fb31653680ab23e8be189e22738fd3e7ee0d2a1 - MD5:
bdf1a4f3cee0c8e4b1ef3c3d5795b880 - imphash:
8c235e3a9d7f61224225c532f7c9583a - ssdeep:
3072:72Qp81+5qyJ+A2c9hjT9pOXIxHoSkYAg6Bckj74H4NLthEjQT6j:7xp8Q5D8c/T7OXYpm7KQEj1 - TLSH:
T1A6428DECB4A92741DAB1E478ED42AA9F910528D9947E5C0E8747342E15E303FFC3129B - Submitted as: virussign.com_bdf1a4f3cee0c8e4b1ef3c3d5795b880.vir
- File type: pe · Size: 212992 bytes
- Verdict: malicious (99/100) · Family: Aenjaris
Source: VirusSign · first seen 2026-08-21T00:00:00.000Z · SHA-256 verified
Detections (6 of 55 engines)
- capa (capabilities): capability:collection/keylog
- ClamAV (daily): Win.Malware.Razy-9759519-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Microsoft Defender: Trojan:Win32/Aenjaris.AL!bit
- Emsisoft (Emergency Kit): Trojan.Agent.DCBC
- Kaspersky (KVRT): HEUR:Trojan.Win32.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 10 weighted signals:
- ClamAV (daily) flagged Win.Malware.Razy-9759519-0 (rule
Win.Malware.Razy-9759519-0) - engine signal, weight 0.90, confidence 0.95 - Memory forensics: 4 finding(s), e.g. process hidden from a listing (rule
windows.psxview.PsXView) - memory signal, weight 0.55, confidence 0.85 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - capture keystrokes (rule
capture keystrokes) - capa signal, weight 0.40, confidence 0.80 - Contacted 30 external host(s) at runtime (21 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497, T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - persist via registry run key (rule
persist via registry run key) - capa signal, weight 0.35, confidence 0.60 - Dropped 10 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
40702 behavior events · 2 ATT&CK techniques · 10 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
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
- settings-win.data.microsoft.com
Dropped files
- C:\Windows\System32\FBOT.exe -
10ff707b5451eb9770188e5b0a74f2518dff27750b6e6ee8c617359b206fd1af - C:\Windows\IBKWLV.exe -
ea35e254e59c4c13808ec06d4ecb4d597ecafbc8256e4215d4f1649c3442547b - C:\Windows\System32\XRCWV.exe -
414239e9fbd9a7032d6d768727aefc38fbd19922988b10297106077c6cf7d938 - C:\Windows\System\LIR.exe -
4be8492785d4e18ef7a04fe2517ba4a19f169623ea4b5b3905e52b8e784dabe2 - C:\Windows\NWUVH.exe -
edb9590690125082084a8c7d1a92de540284acdd1dc68399191c4ddc4a4f8613 - C:\Windows\System32\KLBCL.exe -
568ea5b373a0dac70791831fbb332bd39e1cc3fb6b25c7290e0ec10ea5da8930 - C:\Windows\IVVB.exe -
0f5c2b99004f184effd2a94f79f436b16609e3d7f6763dce1210f6437ae56bc6 - C:\Windows\System32\NJS.exe -
1f4eb1524d3a4c4a86d977fcd5da2641205f3a0db76370641870170f87bfc323 - C:\Windows\OHY.exe -
afcc374ba15ebede27159e75ee9756eba40c840b1b0d25bf333adecc4c0abcf1 - C:\Windows\KTPWYPZ.exe -
2e033e65cd38b145bccf4b59af4e22450b2d7ad1c7933eb3cc573cde73edb3b3
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/fa5c4269-9d03-4a47-8d97-be6931f0b22c/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/fa5c4269-9d03-4a47-8d97-be6931f0b22c?P1=1787936179&P2=404&P3=2&P4=h3jqedUxGSvJE14XqQ038twNyR0ocrRb1zzMpHO4ZQBsgAg4xVtX7Md958gCLbSZZR5LoRAguLauEQ22Rc55bA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/51d86688-616b-47e3-abeb-3df16a1583c5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/51d86688-616b-47e3-abeb-3df16a1583c5?P1=1787936292&P2=404&P3=2&P4=kCF23Aye5mJFLoUCHFtxaU4m23SBwB59M%2fPoqVvgpgbFDBM0WZBqzq8G5tz5AbwzlbznI%2f4BEKFs4E4DMmlhiA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 4.207.44.68
- 52.123.252.218
- 172.215.188.232
- 4.230.171.124
- 4.144.132.114
- 40.84.97.4
- 135.232.92.137
- 74.178.240.51
- 40.79.150.120
- 52.123.129.14
- 20.112.250.133
- 52.123.128.14
- 40.99.134.18
- 74.178.76.128
- 4.207.44.72
- 172.178.240.163
- 92.223.78.30
- 135.234.160.245
- 203.26.79.13
- 52.148.114.188
- 172.178.240.162
- 135.233.45.223
- 52.123.252.245
- 20.165.94.46
- 52.123.252.226
File paths
- f:\rtm\vctools\vc7libs\ship\atlmfc\include\afxwin2.inl
- C:\windows\%s
- C:\windows\system32\%s
- C:\windows\system\%s
- c:\stop-adw.txt
More Aenjaris samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report