MALICIOUS — 74d5229d6d688493e35ad361f2a815d6fb737f5d2199d09dc7c7c5a059b1a94d
MALICIOUS — 74d5229d6d688493e35ad361f2a815d6fb737f5d2199d09dc7c7c5a059b1a94d 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:
74d5229d6d688493e35ad361f2a815d6fb737f5d2199d09dc7c7c5a059b1a94d - SHA-1:
e5884806c92c7d8a4ad2b15d16d4b67741e52cc1 - MD5:
534fa2b4e63b1fe960502f0493eeee60 - imphash:
f34d5f2d4577ed6d9ceec516c1f5a744 - ssdeep:
192:DBksurrN3y+yMeMZZ3H93VnjdwCzD39XEq9l:YZMMeMZFnhwCftX59 - TLSH:
T1E7211BEF5B5C4B87CABDD52B21458E7E5490B49A29B2324C02049B33143C833987E7AB - Submitted as: 74d5229d6d688493e35ad361f2a815d6fb737f5d2199d09dc7c7c5a059b1a94d
- File type: pe · Size: 9216 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.10
- 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 23 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)
3942 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
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
- settings-win.data.microsoft.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=1787901359&P2=404&P3=2&P4=Ms5QBbCvBi%2f5v3xpEgOcl%2fVVVyxtbmxjwmgzlQv0NEqCAIukL7SAW7aXFgActDfmJUrQ8q8%2fbzBCpPPeGuXKrw%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
- 20.42.65.91
- 57.155.101.212
- 4.230.171.124
- 52.230.60.54
- 4.144.132.114
- 74.178.76.128
- 13.89.179.15
- 74.178.76.54
- 20.76.201.171
- 52.123.128.14
- 40.99.133.242
- 52.123.129.14
- 20.42.72.131
- 52.123.252.229
- 135.233.45.223
- 203.26.79.13
- 135.234.160.246
- 72.145.35.97
- 74.178.232.29
- 52.148.114.188
- 52.110.12.46
- 52.110.12.44
More Msilkrypt samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report