MALICIOUS — 5270612f0b25a2f99bcd4b7cd3aec6f9eaf45616815dc0f8a184ee37015bf6b4
MALICIOUS — 5270612f0b25a2f99bcd4b7cd3aec6f9eaf45616815dc0f8a184ee37015bf6b4 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the ButeRat family. 6 of 55 detection engines flagged it, exhibiting 5 ATT&CK techniques.
Identification
- SHA-256:
5270612f0b25a2f99bcd4b7cd3aec6f9eaf45616815dc0f8a184ee37015bf6b4 - SHA-1:
f6a89230f190e6fcc09842bf3cc767efb3e1ccd6 - MD5:
021ef653355d66f0ba12dcaed511a1a7 - imphash:
683b1105f11477b15337eac0e16f858e - ssdeep:
768:LMEIvFGvZEr8LFK0ic46N47eSdYAHwmZGp6JXXlaa5uAW:LbIvYvZEyFKF6N4yS+AQmZTl/5O - TLSH:
T1E0368DCE911AC74DC738DEA1AC04EE9E10BBB86AD0F5B26C2EDAC13E01F0457D845659 - Submitted as: 5270612f0b25a2f99bcd4b7cd3aec6f9eaf45616815dc0f8a184ee37015bf6b4
- File type: pe · Size: 66280 bytes
- Verdict: malicious (99/100) · Family: ButeRat
Detections (6 of 55 engines)
- ClamAV (daily): Win.Malware.Ulise-7170100-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- YARA: Stratosphere IPS: STRATO_Malicious_UserAgent
- Microsoft Defender: Trojan:Win32/ButeRat!pz
- Trellix Stinger (McAfee): Dropper-FZK!021EF653355D
- Kaspersky (KVRT): UDS:Trojan.Win32.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 12 weighted signals:
- ClamAV (daily) flagged Win.Malware.Ulise-7170100-0 (rule
Win.Malware.Ulise-7170100-0) - 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 - 1 behavioral detection(s): Windows Service Installation [medium] (rule
tl-service-install) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 28 external host(s) at runtime (27 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 - YARA: Stratosphere IPS flagged STRATO_Malicious_UserAgent (rule
STRATO_Malicious_UserAgent) - engine signal, weight 0.35, confidence 0.70 - persist via registry run key (rule
persist via registry run key) - capa signal, weight 0.35, confidence 0.60 - Embedded network infrastructure: http://ow5dirasuek.com/, http://mkkuei4kdsz.com/, http://lousta.net/ - static signal, weight 0.35, confidence 0.60
- communicate over HTTP (rule
communicate over HTTP) - capa signal, weight 0.30, confidence 0.60 - Dropped 2 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)
855 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
- lousta.net
- mkkuei4kdsz.com
- ow5dirasuek.com
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
Dropped files
- C:\Windows\System32\omsecor.exe -
013c1474de74c1a34b03a7414f0c2d68d130fabff8cca5adffb058b6ac9c450f - C:\Users\analyst\AppData\Roaming\omsecor.exe -
fad8a20c5d0090b6a0e27fac003a22a19230c45657f7f208f3171564024946af
Embedded URLs
- http://ow5dirasuek.com/
- http://mkkuei4kdsz.com/
- http://lousta.net/
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://lousta.net/969/113.html
- 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=1787924490&P2=404&P3=2&P4=VMnuUBDJbjW0lr6Td9r1CzwuOoJEyw2up4W6qv2MSrVV6bl33nqVpxms0jWgYHL3iCGR1dym3fr3aPX709UeMw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://mkkuei4kdsz.com/212/422.html
- http://ow5dirasuek.com/855/365.html
- http://203.26.79.13/filestreamingservice//files/51d86688-616b-47e3-abeb-3df16a1583c5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/51d86688-616b-47e3-abeb-3df16a1583c5?P1=1787924566&P2=404&P3=2&P4=iDXe25wJ1hF6CWCJ6web1Jtg1jWaqOuKXJNl%2bR%2bFN0i414J%2fMD80j86yAdrR4TtQYOZUXHmox5Z2WnYjYWKD%2bg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- begun.ru
- an.yandex.ru
- ow5dirasuek.com
- mkkuei4kdsz.com
- lousta.net
Embedded IP addresses
- 20.42.65.93
- 52.123.252.197
- 4.144.132.114
- 20.42.179.192
- 4.230.171.124
- 74.179.77.204
- 52.182.141.63
- 74.178.76.54
- 135.233.95.144
- 20.236.44.162
- 52.123.128.14
- 172.178.240.161
- 193.166.255.171
- 172.66.2.5
- 52.123.252.192
- 203.26.79.13
- 52.148.114.188
- 52.123.252.204
- 135.233.95.80
- 52.123.252.227
- 4.247.188.224
- 3.238.30.69
- 44.192.95.127
- 20.184.175.19
- 52.168.117.174
File paths
- C:\WINDOWS\system32\gbdwpbm.dll
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report