MALICIOUS — 84a8332b3c0f71f003c2162471ff305a3dc96e9114712d236ee84712fb8cb4d6
MALICIOUS — 84a8332b3c0f71f003c2162471ff305a3dc96e9114712d236ee84712fb8cb4d6 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Urelas family. 7 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
84a8332b3c0f71f003c2162471ff305a3dc96e9114712d236ee84712fb8cb4d6 - SHA-1:
c47e1f3169202e6725b5effe39e71a8a0de60e9e - MD5:
2dc0152b6a3e53b5a166e85467ad98b0 - imphash:
1d4f832dc5bca2c0b315a4869c805f3c - ssdeep:
12288:q0nPhglq2Uyt4R/b2G/0hznQGoexBU/NP8:q0P/k4lb2wKat8 - TLSH:
T1C74CBE5983B17784DFF797202E606E1E20E268DCE1BF1D8C9387D10E66E295FE09105A - Submitted as: 84a8332b3c0f71f003c2162471ff305a3dc96e9114712d236ee84712fb8cb4d6
- File type: pe · Size: 550613 bytes
- Verdict: malicious (99/100) · Family: Urelas
Detections (7 of 55 engines)
- capa (capabilities): capability:collection/keylog
- ClamAV (daily): Win.Trojan.Urelas-9878050-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Microsoft Defender: Trojan:Win32/Urelas.AA
- Emsisoft (Emergency Kit): Trojan.GenericKD.69791376
- Trellix Stinger (McAfee): Corrupt-FY!2DC0152B6A3E
- Kaspersky (KVRT): Backdoor.Win32.Plite.bhui
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 11 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Urelas-9878050-0 (rule
Win.Trojan.Urelas-9878050-0) - engine signal, weight 0.90, confidence 0.95 - Memory forensics: 2 finding(s), e.g. SSDT hook (rule
windows.ssdt.SSDT) - memory signal, weight 0.50, confidence 0.85 - 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 34 external host(s) at runtime (19 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 - Embedded network infrastructure: 1.234.83.146, 133.242.129.155, 218.54.31.226 - static signal, weight 0.35, confidence 0.60
- Dropped 3 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)
21188 behavior events · 2 ATT&CK techniques · 5 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
- officeclient.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\bojyd.exe -
ecc4842227ccd66c8bae25c05b50a60de3d473761e58b64057b8f41e708abd5b - C:\Users\analyst\AppData\Local\Temp\golfinfo.ini -
c91962b0b401673a61e3f87b39d2fe9a632cd7d821b327b79ade6d7fce7bfc59 - C:\Users\analyst\AppData\Local\Temp\bojyd.exe -
cfd656914d31bf66830198c4970d299b264bfe5f33815fd17344e1c83e3ad45d - C:\Users\analyst\AppData\Local\Temp\urwyg.exe -
95b3e70c80077a8b695ed4030900a2fda9cdccb0b8aa3564b04e746b045cee89 - 2b036cbfc301b89d7f11277c3a74717402c31355086b68249a36fff6717758f9 -
2b036cbfc301b89d7f11277c3a74717402c31355086b68249a36fff6717758f9
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/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=1787913066&P2=404&P3=2&P4=GRtcprZ8Rn69KHbQyPAtL301ZBIlAzys%2bp2SUIOLuUsBU4vF9IYQtDwck%2bN484YEN7eUlfymA9Gt1gyr0l%2fE5w%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/51d86688-616b-47e3-abeb-3df16a1583c5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
Embedded IP addresses
- 1.234.83.146
- 133.242.129.155
- 218.54.31.226
- 218.54.31.165
- 4.150.223.96
- 4.247.188.233
- 4.230.171.124
- 4.144.132.223
- 135.232.92.137
- 135.232.92.97
- 20.184.175.17
- 74.178.76.128
- 92.223.78.30
- 40.99.134.2
- 20.236.44.162
- 172.66.2.5
- 52.123.128.14
- 40.99.134.18
- 52.123.129.14
- 40.99.133.242
- 20.184.175.5
- 135.234.160.244
- 203.26.79.13
- 57.155.101.212
- 52.110.12.49
File paths
- C:\VFDD.BIN
- P:\:`:d:h:l:p:t:x:
- 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
- c:\gdisk.exe
- c:\windows\gdisk.exe
- c:\windows\system32\gdisk.exe
More Urelas samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report