MALICIOUS — bbd6ac6ba7e1fd46ecb3efde63cbf945fe94b3ea02282230ad1bbac66f51e81b
MALICIOUS — bbd6ac6ba7e1fd46ecb3efde63cbf945fe94b3ea02282230ad1bbac66f51e81b is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Msilkrypt family. 4 of 55 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
bbd6ac6ba7e1fd46ecb3efde63cbf945fe94b3ea02282230ad1bbac66f51e81b - SHA-1:
8783707c84fabdcf34bde11b53445ed64e3b237b - MD5:
0971104b36e016788ff7d06b4e3f2a4b - imphash:
f34d5f2d4577ed6d9ceec516c1f5a744 - ssdeep:
192:lBksu/zHNQeWeMZZ3a93Vnjdwqzf32hkn:mH5WeMuFnhwqLuk - TLSH:
T167221BEF1B5C4F8BCABEE11B6155897EA490B45E38B1228C11004B335578823D87E79F - Submitted as: bbd6ac6ba7e1fd46ecb3efde63cbf945fe94b3ea02282230ad1bbac66f51e81b
- File type: pe · Size: 9728 bytes
- Verdict: malicious (99/100) · Family: Msilkrypt
Detections (4 of 55 engines)
- ClamAV (daily): Win.Malware.Msilkrypt-9839010-0
- Microsoft Defender: PWS:MSIL/Infostealer.PAC!MTB
- Emsisoft (Emergency Kit): Gen:Trojan.Mardom.PN.15
- Kaspersky (KVRT): HEUR:Trojan.MSIL.Agent.gen
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 8 weighted signals:
- ClamAV (daily) flagged Win.Malware.Msilkrypt-9839010-0 (rule
Win.Malware.Msilkrypt-9839010-0) - engine signal, weight 0.90, confidence 0.95 - 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 21 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1082 - dynamic signal, weight 0.40, confidence 0.75
- Extracted RedLine config (0 C2) - engine signal, weight 0.45, confidence 0.60
- Embedded network infrastructure: http://tempuri.org/IUserService/GetUsersT, http://194.87.145.184:6484/UserService, 194.87.145.184 - static signal, weight 0.35, confidence 0.60
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
3950 behavior events · 2 ATT&CK techniques · 0 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
- settings-win.data.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
Embedded URLs
- http://tempuri.org/IUserService/GetUsersT
- http://194.87.145.184:6484/UserService
- 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=1787879461&P2=404&P3=2&P4=FZG7ds0WtkcvS%2bnY48wSOfBzH%2flC%2f%2b4Yw3dXLe9ClQseBQ0H8Wt8xwgfLUP1qZxqPla2l%2bsBlIYkAebTv7oOEw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- schemas.datacontract.org
- tempuri.org
Embedded IP addresses
- 194.87.145.184
- 51.132.193.105
- 52.123.252.192
- 4.230.171.124
- 40.84.85.40
- 20.247.184.197
- 85.210.193.152
- 52.123.252.239
- 135.233.95.144
- 135.232.92.97
- 4.207.44.64
- 52.123.129.14
- 20.236.44.162
- 52.123.128.14
- 203.26.79.13
- 135.234.160.244
- 52.148.114.188
- 135.232.92.34
- 52.110.12.50
- 72.153.5.140
- 52.110.12.49
More Msilkrypt samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report