MALICIOUS — afb7c503fd742994be9938be0fc2e07a7d623d75caba0ae3eb48d639ba7a2d46
MALICIOUS — afb7c503fd742994be9938be0fc2e07a7d623d75caba0ae3eb48d639ba7a2d46 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Urelas family. 5 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
afb7c503fd742994be9938be0fc2e07a7d623d75caba0ae3eb48d639ba7a2d46 - SHA-1:
4f7fa41d2a907cd124ea88abcc1b44a91e5bfd90 - MD5:
02c9bcef2b2957bf655b5a857b6a98ad - imphash:
5da7833669e1658fe071bf31df00f9a3 - ssdeep:
1536:A/oEtqfCZ10zcT9Yh8AIXcjyz9cOXfiXGImcatMrsWjcd76odZNgRC:A/5tqCxiXEcO3XfGf2tMU76odZNgRC - TLSH:
T14F3B4BCD05177642F2F7C6509C009F8DD0A2B0EA127DAD4C2DC3D46E36E2927ABB459A - Submitted as: afb7c503fd742994be9938be0fc2e07a7d623d75caba0ae3eb48d639ba7a2d46
- File type: pe · Size: 111794 bytes
- Verdict: malicious (99/100) · Family: Urelas
Detections (5 of 55 engines)
- ClamAV (daily): Win.Malware.Urelas-6717394-0
- YARA: Yara-Rules community: YR_AntiDebug_Checks
- Microsoft Defender: Trojan:Win32/Urelas!atmnm
- Emsisoft (Emergency Kit): Gen:Heur.Conjar.1
- Kaspersky (KVRT): Backdoor.Win32.Plite.bhug
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 10 weighted signals:
- ClamAV (daily) flagged Win.Malware.Urelas-6717394-0 (rule
Win.Malware.Urelas-6717394-0) - engine signal, weight 0.90, confidence 0.95 - Memory forensics: 3 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 34 external host(s) at runtime (22 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule
YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70 - Embedded network infrastructure: 218.54.47.76, 218.54.47.74, 218.54.31.226 - static signal, weight 0.35, confidence 0.60
- 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 - Extracted generic config (3 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
11958 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
- msedge.api.cdp.microsoft.com
- www.msn.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\biudfw.exe -
8070ab5525a326d584f1c13330b0da7335580b1a9a522b1ceafdf929260e6f7b - C:\Users\analyst\AppData\Local\Temp\golfinfo.ini -
148b372f491c99700996982fae04d288bd4df631e9d86c2fdec032d32a9dd672
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=1787809248&P2=404&P3=2&P4=b80UJkcbnz0nhJBJbNvpaNjPfrR7RA33h0XpPvtO1TZ%2fubybueIQ1v7VtuGMEPNDXdZwLZaIqBmAzyQ%2bwBms1w%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=1787809325&P2=404&P3=2&P4=MZwlssVPM%2fOKPWF3jEjRuHgRsN0aTqwlPxQg7RdWUtGd3IKZpsICKu0z7Mzg4V4AZNZS%2b7UevkJq0tIF3A06SQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 218.54.47.76
- 218.54.47.74
- 218.54.31.226
- 218.54.47.77
- 52.123.252.215
- 40.79.150.123
- 52.123.252.245
- 4.230.171.124
- 172.215.188.225
- 20.247.184.197
- 135.233.95.144
- 20.165.94.54
- 52.123.252.242
- 74.178.76.44
- 4.150.223.109
- 20.89.1.10
- 203.26.79.13
- 52.123.252.213
- 40.103.64.242
- 20.231.239.246
- 52.123.129.14
- 52.123.128.14
- 135.234.160.244
- 52.110.12.15
- 52.110.12.4
More Urelas samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report