Analysis
- max time kernel
214s - max time network
224s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
19/11/2022, 16:58
Behavioral task
behavioral1
Sample
1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe
Resource
win7-20220901-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe
- Size 756KB
- Sample221119-vg7vcafb8v
- SHA256 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b
- MD5 4257652b2388d2319a455f13edc6e120
- SHA1 af7b93884cd0d97f62d52ee2fa9c0f3ea1e6c73f
- SHA512 663997da85e905a72385cb8894b342adb17af3fb39496bbb29999454ee07201e9459592c46cc0df478fcb01fbdc763cfaf5afc015fa0de9cf89cf9fdd5ace76c
- SSDEEP 12288:09HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hvo:4Z1xuVVjfFoynPaVBUR8f+kN10EBy
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
darkcomet
Botnet
-
Guest11
C2
-
windek.zapto.org:1604
Mutex
-
DC_MUTEX-11R3JFE
Attributes
-
InstallPath
MSDCSC\msdcsc.exe
-
gencode
ug7J46nxGNL8
-
install
true
-
offline_keylogger
true
-
persistence
true
-
reg_key
MicroUpdate
Signatures
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe - Executes dropped EXE 1 IoCs
pid Process 3132 msdcsc.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" msdcsc.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeSecurityPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeTakeOwnershipPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeLoadDriverPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeSystemProfilePrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeSystemtimePrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeProfSingleProcessPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeIncBasePriorityPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeCreatePagefilePrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeBackupPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeRestorePrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeShutdownPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeDebugPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeSystemEnvironmentPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeChangeNotifyPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeRemoteShutdownPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeUndockPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeManageVolumePrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeImpersonatePrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeCreateGlobalPrivilege 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: 33 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: 34 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: 35 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: 36 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe Token: SeIncreaseQuotaPrivilege 3132 msdcsc.exe Token: SeSecurityPrivilege 3132 msdcsc.exe Token: SeTakeOwnershipPrivilege 3132 msdcsc.exe Token: SeLoadDriverPrivilege 3132 msdcsc.exe Token: SeSystemProfilePrivilege 3132 msdcsc.exe Token: SeSystemtimePrivilege 3132 msdcsc.exe Token: SeProfSingleProcessPrivilege 3132 msdcsc.exe Token: SeIncBasePriorityPrivilege 3132 msdcsc.exe Token: SeCreatePagefilePrivilege 3132 msdcsc.exe Token: SeBackupPrivilege 3132 msdcsc.exe Token: SeRestorePrivilege 3132 msdcsc.exe Token: SeShutdownPrivilege 3132 msdcsc.exe Token: SeDebugPrivilege 3132 msdcsc.exe Token: SeSystemEnvironmentPrivilege 3132 msdcsc.exe Token: SeChangeNotifyPrivilege 3132 msdcsc.exe Token: SeRemoteShutdownPrivilege 3132 msdcsc.exe Token: SeUndockPrivilege 3132 msdcsc.exe Token: SeManageVolumePrivilege 3132 msdcsc.exe Token: SeImpersonatePrivilege 3132 msdcsc.exe Token: SeCreateGlobalPrivilege 3132 msdcsc.exe Token: 33 3132 msdcsc.exe Token: 34 3132 msdcsc.exe Token: 35 3132 msdcsc.exe Token: 36 3132 msdcsc.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3132 msdcsc.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1764 wrote to memory of 3132 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe 82 PID 1764 wrote to memory of 3132 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe 82 PID 1764 wrote to memory of 3132 1764 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe 82
Processes
-
C:\Users\Admin\AppData\Local\Temp\1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe"C:\Users\Admin\AppData\Local\Temp\1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1764 -
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3132
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
- Size 756KB
- SHA256 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b
- MD5 4257652b2388d2319a455f13edc6e120
- SHA1 af7b93884cd0d97f62d52ee2fa9c0f3ea1e6c73f
- SHA512 663997da85e905a72385cb8894b342adb17af3fb39496bbb29999454ee07201e9459592c46cc0df478fcb01fbdc763cfaf5afc015fa0de9cf89cf9fdd5ace76c
- SSDEEP 12288:09HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hvo:4Z1xuVVjfFoynPaVBUR8f+kN10EBy
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
- Size 756KB
- SHA256 1f73c10dffa095dd31e05a9153bd08c150f3ba7c2384bff5b20c588e1cbc440b
- MD5 4257652b2388d2319a455f13edc6e120
- SHA1 af7b93884cd0d97f62d52ee2fa9c0f3ea1e6c73f
- SHA512 663997da85e905a72385cb8894b342adb17af3fb39496bbb29999454ee07201e9459592c46cc0df478fcb01fbdc763cfaf5afc015fa0de9cf89cf9fdd5ace76c
- SSDEEP 12288:09HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hvo:4Z1xuVVjfFoynPaVBUR8f+kN10EBy
- MD5 SHA1 SHA512 SSDEEP