Analysis
-
max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
03-04-2024 12:14
Behavioral task
behavioral1
Sample
vpn-sg.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
vpn-sg.exe
Resource
win10v2004-20240226-en
General
-
Target
vpn-sg.exe
-
Size
756KB
-
MD5
46312df6c5ddc1f1c31051b7a6ccd792
-
SHA1
0cd971f850841246463b7ebd6fafa8090b443bd4
-
SHA256
d484e27c6aa0cfd3f3be41616901d5eaded7ab35632035a22f94538981f403a9
-
SHA512
b227329c43de53577af461c93aa7af27932457ad21eaa13e4ff53a0a5c6e2c4f99e12e5d0e8767d58e105e8cf619dfde28075995f32653b3e5cf54fd1fbfac6f
-
SSDEEP
12288:F9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h+:PZ1xuVVjfFoynPaVBUR8f+kN10EBI
Malware Config
Extracted
darkcomet
Guest16
45.61.152.61:1604
DC_MUTEX-75H671P
-
InstallPath
MSDCSC\msdcsc.exe
-
gencode
rvR4QwZQ1qCt
-
install
true
-
offline_keylogger
true
-
persistence
false
-
reg_key
MicroUpdate
Signatures
-
Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
vpn-sg.exedescription 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" vpn-sg.exe -
Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid process 2540 msdcsc.exe -
Loads dropped DLL 2 IoCs
Processes:
vpn-sg.exepid process 2340 vpn-sg.exe 2340 vpn-sg.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
vpn-sg.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" vpn-sg.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of AdjustPrivilegeToken 46 IoCs
Processes:
vpn-sg.exemsdcsc.exedescription pid process Token: SeIncreaseQuotaPrivilege 2340 vpn-sg.exe Token: SeSecurityPrivilege 2340 vpn-sg.exe Token: SeTakeOwnershipPrivilege 2340 vpn-sg.exe Token: SeLoadDriverPrivilege 2340 vpn-sg.exe Token: SeSystemProfilePrivilege 2340 vpn-sg.exe Token: SeSystemtimePrivilege 2340 vpn-sg.exe Token: SeProfSingleProcessPrivilege 2340 vpn-sg.exe Token: SeIncBasePriorityPrivilege 2340 vpn-sg.exe Token: SeCreatePagefilePrivilege 2340 vpn-sg.exe Token: SeBackupPrivilege 2340 vpn-sg.exe Token: SeRestorePrivilege 2340 vpn-sg.exe Token: SeShutdownPrivilege 2340 vpn-sg.exe Token: SeDebugPrivilege 2340 vpn-sg.exe Token: SeSystemEnvironmentPrivilege 2340 vpn-sg.exe Token: SeChangeNotifyPrivilege 2340 vpn-sg.exe Token: SeRemoteShutdownPrivilege 2340 vpn-sg.exe Token: SeUndockPrivilege 2340 vpn-sg.exe Token: SeManageVolumePrivilege 2340 vpn-sg.exe Token: SeImpersonatePrivilege 2340 vpn-sg.exe Token: SeCreateGlobalPrivilege 2340 vpn-sg.exe Token: 33 2340 vpn-sg.exe Token: 34 2340 vpn-sg.exe Token: 35 2340 vpn-sg.exe Token: SeIncreaseQuotaPrivilege 2540 msdcsc.exe Token: SeSecurityPrivilege 2540 msdcsc.exe Token: SeTakeOwnershipPrivilege 2540 msdcsc.exe Token: SeLoadDriverPrivilege 2540 msdcsc.exe Token: SeSystemProfilePrivilege 2540 msdcsc.exe Token: SeSystemtimePrivilege 2540 msdcsc.exe Token: SeProfSingleProcessPrivilege 2540 msdcsc.exe Token: SeIncBasePriorityPrivilege 2540 msdcsc.exe Token: SeCreatePagefilePrivilege 2540 msdcsc.exe Token: SeBackupPrivilege 2540 msdcsc.exe Token: SeRestorePrivilege 2540 msdcsc.exe Token: SeShutdownPrivilege 2540 msdcsc.exe Token: SeDebugPrivilege 2540 msdcsc.exe Token: SeSystemEnvironmentPrivilege 2540 msdcsc.exe Token: SeChangeNotifyPrivilege 2540 msdcsc.exe Token: SeRemoteShutdownPrivilege 2540 msdcsc.exe Token: SeUndockPrivilege 2540 msdcsc.exe Token: SeManageVolumePrivilege 2540 msdcsc.exe Token: SeImpersonatePrivilege 2540 msdcsc.exe Token: SeCreateGlobalPrivilege 2540 msdcsc.exe Token: 33 2540 msdcsc.exe Token: 34 2540 msdcsc.exe Token: 35 2540 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid process 2540 msdcsc.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
vpn-sg.exedescription pid process target process PID 2340 wrote to memory of 2540 2340 vpn-sg.exe msdcsc.exe PID 2340 wrote to memory of 2540 2340 vpn-sg.exe msdcsc.exe PID 2340 wrote to memory of 2540 2340 vpn-sg.exe msdcsc.exe PID 2340 wrote to memory of 2540 2340 vpn-sg.exe msdcsc.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\vpn-sg.exe"C:\Users\Admin\AppData\Local\Temp\vpn-sg.exe"1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
\Users\Admin\Documents\MSDCSC\msdcsc.exeFilesize
756KB
MD546312df6c5ddc1f1c31051b7a6ccd792
SHA10cd971f850841246463b7ebd6fafa8090b443bd4
SHA256d484e27c6aa0cfd3f3be41616901d5eaded7ab35632035a22f94538981f403a9
SHA512b227329c43de53577af461c93aa7af27932457ad21eaa13e4ff53a0a5c6e2c4f99e12e5d0e8767d58e105e8cf619dfde28075995f32653b3e5cf54fd1fbfac6f
-
memory/2340-0-0x0000000000270000-0x0000000000271000-memory.dmpFilesize
4KB
-
memory/2340-13-0x0000000000400000-0x00000000004CA000-memory.dmpFilesize
808KB
-
memory/2540-11-0x0000000000370000-0x0000000000371000-memory.dmpFilesize
4KB
-
memory/2540-14-0x0000000000400000-0x00000000004CA000-memory.dmpFilesize
808KB
-
memory/2540-15-0x0000000000400000-0x00000000004CA000-memory.dmpFilesize
808KB
-
memory/2540-16-0x0000000000400000-0x00000000004CA000-memory.dmpFilesize
808KB
-
memory/2540-18-0x0000000000400000-0x00000000004CA000-memory.dmpFilesize
808KB
-
memory/2540-23-0x0000000000400000-0x00000000004CA000-memory.dmpFilesize
808KB
-
memory/2540-24-0x0000000000400000-0x00000000004CA000-memory.dmpFilesize
808KB