MALICIOUS — Half-Life 2 + cdfix.exe
MALICIOUS — Half-Life 2 + cdfix.exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Upantix family. 6 of 55 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
c5174e33c7c0c2e1a53c9ef0fa8185c90d85e7c644695bc99eea99730e18f06f - SHA-1:
6d83dc7639489c569001a750b6d9c7de83418796 - MD5:
718a719e261e862e8b2370cb3dddd499 - imphash:
24b60c57cc33f3e633431b7ad497fda7 - ssdeep:
12288:5wawSwaw1wawSwaw9zJwawSwaw1wawSwaw9zswawSwaw1wawSwaw9zJwawSwaw1J:R - TLSH:
T17B60D100327A399CD7709F605524598DA22552C1897D3EEA9B03072D3CB78BBB9E8F71 - Submitted as: Half-Life 2 + cdfix.exe
- File type: pe · Size: 3525572 bytes
- Verdict: malicious (99/100) · Family: Upantix
Detections (6 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Malware.Upantix-9886651-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Detect It Easy (packer/type): DIE:Turbo Linker
- Microsoft Defender: Trojan:Win32/Upantix.GM!MTB
- Kaspersky (KVRT): HEUR:Packed.Win32.Upantix.gen
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 9 weighted signals:
- ClamAV (daily) flagged Win.Malware.Upantix-9886651-0 (rule
Win.Malware.Upantix-9886651-0) - engine signal, weight 0.90, confidence 0.95 - Dropped a malicious payload (Upantix): Half-Life 2 fix.exe - dynamic signal, weight 0.62, confidence 0.90
- Memory forensics: 4 finding(s), e.g. RWX/private injected region in taskhostw.exe (pid 6580) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - 1 behavioral detection(s): C2: connection to non-standard port [medium] (rule
tl-c2-rare-port) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 27 external host(s) at runtime (24 HTTP) - network signal, weight 0.40, confidence 0.80
- YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - Detect It Easy (packer/type) flagged DIE:Turbo Linker (rule
DIE:Turbo Linker) - engine signal, weight 0.35, confidence 0.70 - communicate over HTTP (rule
communicate over HTTP) - capa signal, weight 0.30, confidence 0.60 - Packing/obfuscation: UPX, high-entropy-sections:UPX1, Turbo Linker - static signal, weight 0.25, confidence 0.55
Dynamic analysis (windows)
1323 behavior events · 0 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
- us.undernet.org
- 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
Dropped files
- C:\Windows\win32dc\Half-Life 2 fix.exe -
756244a0811499b8717118e1d695fbdff8d0c634aa6950780f0c8318613294d1 - C:\Windows\win32dc\Sims 2(patch).exe -
f8692ddff3bb372490d0672dc7fedd5c86f63cd7e97900fd0d5ebce9e100ea35 - C:\Windows\win32dc\Quake3_trainer.exe -
7759f24f63032d651353f9ea1b104f36b5572ef03f16b3088bba00c6b8e2db6f - C:\Windows\win32dc\Counter-Strike(fix).exe -
405cd4183d90d79fbb6152652426e64b5f4214e9a320f681084dc94027f4d568 - C:\Windows\win32dc\DAoC_fix.exe -
c6d66203223962f39d6d2f30e9a379cb6925a5d65f2296a6ee1eb48ff6339e41
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=1787639470&P2=404&P3=2&P4=Sz5NB9mTxYOlJ6G5w520Gd8qLhTdKu%2bm9j7heNU9TbIj%2fkMy1TXDDbR9K964OvBKEDrIMgTtuJICsz0aNynAog%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/45cd9142-6feb-4946-89e7-63e58fada30a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/45cd9142-6feb-4946-89e7-63e58fada30a?P1=1787639499&P2=404&P3=2&P4=GDXGMso7dzu%2fJfCJyDwynEhk3EXxyCVgqlP2oxZ%2fGpnLhdz%2bXTlPWaOE6UbVbS24udczxgkry6dsqO9ZJ2GKZA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- us.undernet.org
Embedded IP addresses
- 40.79.141.152
- 20.42.179.204
- 4.230.171.124
- 4.144.132.223
- 20.247.184.142
- 52.178.17.234
- 74.178.76.128
- 74.178.240.51
- 20.231.239.246
- 40.103.64.226
- 52.123.129.14
- 52.123.128.14
- 40.99.133.226
- 52.110.12.49
- 20.184.175.13
- 52.110.12.22
- 135.233.45.223
- 52.123.252.236
- 203.26.79.13
- 186.233.185.155
- 52.123.252.240
- 20.165.94.46
- 52.148.114.188
- 172.178.240.161
- 72.145.35.101
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report