MALICIOUS — 4bcc135c2ecf898a1f5d7dba3d01d2e728eb5c45d3ea43bdd6019893f04daed6
MALICIOUS — 4bcc135c2ecf898a1f5d7dba3d01d2e728eb5c45d3ea43bdd6019893f04daed6 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Urelas family. 6 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
4bcc135c2ecf898a1f5d7dba3d01d2e728eb5c45d3ea43bdd6019893f04daed6 - SHA-1:
845db37095f1fea7f53bdd46ceb3e4272f557e4b - MD5:
5f3aa7f469240ac9698bf4470997fd9d - imphash:
e64c588944c2ac10400ed12764c26b03 - ssdeep:
1536:nK0GjMeQG3iaQREuVZ6ro29p4YxbKdrB:K0GAqjuVZ6rNOrB - TLSH:
T105350279800AEA65E5BEF3043854ED2DBB5E63740CADB5F9EF10525C7238213924932B - Submitted as: 4bcc135c2ecf898a1f5d7dba3d01d2e728eb5c45d3ea43bdd6019893f04daed6
- File type: pe · Size: 62544 bytes
- Verdict: malicious (99/100) · Family: Urelas
Detections (6 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:HSUDHUHW
- ClamAV (daily): Win.Trojan.Generic-9909987-0
- Detect It Easy (packer/type): DIE:Packman
- Microsoft Defender: Trojan:Win32/Urelas!pz
- Trellix Stinger (McAfee): Trojan-FEXT!87EE44CB458B
- Kaspersky (KVRT): HEUR:Trojan.Win32.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 9 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Generic-9909987-0 (rule
Win.Trojan.Generic-9909987-0) - 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 - Contacted 31 external host(s) at runtime (21 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- Detect It Easy (packer/type) flagged DIE:Packman (rule
DIE:Packman) - engine signal, weight 0.35, confidence 0.70 - Packing/obfuscation: high-entropy-sections:HSUDHUHW, Packman - static signal, weight 0.25, confidence 0.55
- Dropped 1 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)
11876 behavior events · 2 ATT&CK techniques · 2 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:\Users\analyst\AppData\Local\Temp\biudfw.exe -
7da1caefa2d14504320fac94c73fccf9d604fb7b5c2be859699f2144c1302be9 - C:\Users\analyst\AppData\Local\Temp\golfinfo.ini -
a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1
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=1787859361&P2=404&P3=2&P4=JRfgAECQP5dLlDWTZsvn0JakKqfzovt5WfP0ArpthFusRrfvTz4JVZzsoVN4FOTCbw3zLT5TQPmcFL%2f%2bJWHf%2bQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787859492&P2=404&P3=2&P4=FC69u15vZ8777MDhdULBwxAAFNGBR5ULL6ojt8AFO8Bm1VZLT5LmjWIZWtLDui8VE1y%2fKuopR5cNOwZcno2l5A%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 20.42.72.131
- 20.42.179.204
- 4.230.171.124
- 20.247.185.124
- 135.233.95.144
- 74.179.77.164
- 74.178.240.61
- 40.79.150.122
- 40.79.167.10
- 20.236.44.162
- 52.123.128.14
- 52.123.129.14
- 203.26.79.13
- 135.233.45.223
- 218.54.47.76
- 162.159.142.9
- 52.110.12.32
- 218.54.47.74
- 52.148.114.188
- 52.110.12.1
- 135.233.45.221
- 52.123.252.233
- 135.232.92.34
- 218.54.47.77
- 40.84.85.40
More Urelas samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report