MALICIOUS — b86b639287e2cb290c369abfb381641a669a1dc256bc6a8e3fb95e39259620a4
MALICIOUS — b86b639287e2cb290c369abfb381641a669a1dc256bc6a8e3fb95e39259620a4 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 4 ATT&CK techniques.
Identification
- SHA-256:
b86b639287e2cb290c369abfb381641a669a1dc256bc6a8e3fb95e39259620a4 - SHA-1:
bc38898c7e81fc14af4ac9f3c64d29bec6aca1cd - MD5:
7c1e8a202af85329cac21e1d3a99c79e - imphash:
3bc7cf6c7aa4ebdbc78ef1dfb2ed7c41 - ssdeep:
12288:93CtSokfFGUMKwlTIU/b37dJ75WEe+eKTxB6mFy:9x9GzHlTv/b35tecFB6N - TLSH:
T1054BCF9882F57385DFF7D7202E906E0E20E268DDD1BE0D8D8787D11E62E291FE49105A - Submitted as: b86b639287e2cb290c369abfb381641a669a1dc256bc6a8e3fb95e39259620a4
- File type: pe · Size: 479684 bytes
- Verdict: malicious (99/100) · Family: Urelas
Detections (6 of 55 engines)
- capa (capabilities): capability:collection/keylog
- ClamAV (daily): Win.Malware.Urelas-6717394-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- YARA: Yara-Rules community: YR_Packer_ASPack_MPRESS
- Microsoft Defender: Trojan:Win32/Urelas!pz
- Kaspersky (KVRT): Trojan.Win32.Wecod.aobg
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 11 weighted signals:
- ClamAV (daily) flagged Win.Malware.Urelas-6717394-0 (rule
Win.Malware.Urelas-6717394-0) - 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 - capture keystrokes (rule
capture keystrokes) - capa signal, weight 0.40, confidence 0.80 - Contacted 33 external host(s) at runtime (20 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - YARA: Yara-Rules community flagged YR_Packer_ASPack_MPRESS (rule
YR_Packer_ASPack_MPRESS) - engine signal, weight 0.35, confidence 0.70 - Embedded network infrastructure: 121.88.5.183, 121.88.5.184, 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)
10793 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
- settings-win.data.microsoft.com
- config.edge.skype.com
- tas02.sls.update.microsoft.com
- v10.events.data.microsoft.com
- fe3cr.delivery.mp.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\golfinfo.ini -
66c8ae290d7cf992faf67b10d1ef8ad91857f3709f459af69b6a11f521a3aeea - C:\Users\analyst\AppData\Local\Temp\sander.exe -
de94eed98810c05994af65b1273af336cabc2812a9c2578094831240693663d4
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=1787761624&P2=404&P3=2&P4=eJcArMfW7XmAwnJXJj%2bDpCznD7HSs1X8jmNScKv1xLTi%2bkARIYYvuqW7QgrC4cgek2FA8MVdbUwa8xgW%2ff%2b6mw%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=1787761673&P2=404&P3=2&P4=k%2fTdugYBZbcxStcrbVW16x3Dxs743%2fRpvggpZC1PZVU6Lo9D7xucsSpoUtP%2bHZ8rN3PNw6yHH3%2f0WrIqFUGjmw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 121.88.5.183
- 121.88.5.184
- 218.54.31.226
- 218.54.30.235
- 74.178.76.44
- 51.105.71.136
- 20.165.94.63
- 20.42.179.192
- 20.42.73.24
- 172.215.188.232
- 4.230.171.124
- 4.144.132.114
- 20.165.94.54
- 20.231.239.246
- 52.123.129.14
- 52.123.128.14
- 40.103.64.242
- 203.26.79.13
- 4.150.223.96
- 52.123.252.224
- 135.232.92.34
- 52.123.252.198
- 172.178.240.163
- 172.178.240.161
- 52.110.12.1
File paths
- D:\PMS\pms4\Project(20131216)\GolfUpdate\bin\GolfUpdate.pdb
- F:\:e:
- X:\:`:d:h:l:p:t:x:
- L:\:`:d:h:p:
- f:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\auxdata.cpp
- f:\dd\vctools\vc7libs\ship\atlmfc\include\afxwin2.inl
- f:\dd\vctools\vc7libs\ship\atlmfc\include\afxwin1.inl
More Urelas samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report