SUSPICIOUS — virussign.com_c0002a4ffd12f78b5302b2221ea0ddf0.vir
SUSPICIOUS — virussign.com_c0002a4ffd12f78b5302b2221ea0ddf0.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (54/100). 3 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
91865f563aa5b65632d4f573edabb5e2da7b2df6059cffe4f036258d8100b29c - SHA-1:
c49fb3bc1a81c85962fe25a73a3a28e55c7e371c - MD5:
c0002a4ffd12f78b5302b2221ea0ddf0 - imphash:
f4930c859e9ecab5cf737a14506e089d - ssdeep:
24576:v0U6vGWQMFRobcLnplqb6qy3C2oR5VrASM8CJHfg8bDS3bhWZcOp1:3pBcjpcmn3CbR5NASMZH1Sb4GO/ - TLSH:
T1D3576B2C50282C41E562E5415A615E5F18F2B3A4A37FCA0C2443C5EE5BEAF5BF5BBC02 - Submitted as: virussign.com_c0002a4ffd12f78b5302b2221ea0ddf0.vir
- File type: pe · Size: 1610752 bytes
- Verdict: suspicious (54/100)
Source: VirusSign · first seen 2026-08-18T00:00:00.000Z · SHA-256 verified
Detections (3 of 55 engines)
- Microsoft Defender: Virus:Win64/Expiro.DF!MTB
- Emsisoft (Emergency Kit): Win32.Expiro.Gen.6
- Kaspersky (KVRT): HEUR:Virus.Win32.Expiro.gen
MITRE ATT&CK
Why this verdict
The suspicious score of 54/100 is the fusion of 3 weighted signals:
- 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 20 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
Dynamic analysis (windows)
82 behavior events · 1 ATT&CK techniques · 1 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
- licensing.mp.microsoft.com
- oneocsp.microsoft.com
- www.msn.com
Dropped files
- fb9b565a231324704c815b012432070506e01f444d0ad1450b0ae40d88a5ef62 -
fb9b565a231324704c815b012432070506e01f444d0ad1450b0ae40d88a5ef62
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/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787732954&P2=404&P3=2&P4=fc0a2YgeNrkIqwqnrned%2b9jGs15eoYYV0p74jnG%2ftu7AMdr9wVmvgcPY0CmIzyeTl7ZsoTxdW08qWe0a9yFaMg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 4.150.223.105
- 52.230.59.222
- 20.42.179.204
- 4.230.171.124
- 20.165.94.63
- 74.179.77.164
- 52.178.17.3
- 20.112.250.133
- 52.123.128.14
- 52.123.129.14
- 92.223.78.30
- 162.159.142.9
- 135.234.160.246
- 52.123.252.234
- 203.26.79.13
- 74.179.71.159
- 72.154.7.108
- 52.148.114.188
- 52.110.12.44
- 52.110.12.45
File paths
- d:\w7rtm.public.x86fre\sdk\inc\atlmfc\atlexcept.h
- d:\w7rtm.public.x86fre\sdk\inc\atlmfc\atlcore.h
- d:\w7rtm.public.x86fre\sdk\inc\atlmfc\atlbase.h
- d:\w7rtm.public.x86fre\sdk\inc\atlmfc\statreg.h
- d:\w7rtm.public.x86fre\sdk\inc\atlmfc\atlcom.h
- d:\w7rtm.public.x86fre\sdk\inc\atlmfc\atlsimpcoll.h
- d:\w7rtm.public.x86fre\sdk\inc\atlmfc\atlalloc.h
- d:\w7rtm.public.x86fre\sdk\inc\atlmfc\atlbase.inl
- d:\w7rtm\base\stor\blb\engine\service\async.cpp
- d:\w7rtm\base\stor\blb\engine\blbengutils\BlbSecurityUtils.h
- d:\w7rtm\base\stor\blb\engine\service\async.h
- d:\w7rtm\base\stor\blb\engine\service\backup.cpp
- d:\w7rtm.public.x86fre\sdk\inc\atlmfc\atlcomcli.h
- d:\w7rtm\base\stor\blb\inc\blbutility.h
- d:\w7rtm.public.x86fre\sdk\inc\atlmfc\atlcoll.h
- d:\w7rtm\base\stor\blb\engine\service\engine.cpp
- d:\w7rtm\base\stor\blb\engine\service\engine.h
- d:\w7rtm\base\stor\blb\engine\service\wrapper.cpp
- d:\w7rtm\base\stor\blb\engine\service\restore.cpp
- d:\w7rtm\base\stor\blb\engine\service\restore.h
- d:\w7rtm\base\stor\blb\engine\service\verify.cpp
- d:\w7rtm.public.x86fre\sdk\inc\atlmfc\atlsimpstr.h
- d:\w7rtm.public.x86fre\sdk\inc\atlmfc\atlsecurity.inl
- d:\w7rtm\base\stor\blb\engine\service\service.cpp
- d:\w7rtm\base\stor\blb\engine\service\component.cpp
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report