darkcomet | 1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9

General

Target

1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Size

756KB
MD5

ea6e9d8f151d1437cba55259bd7627fa
SHA1

a913d0af4e1c115ffdd1e05faa3df480e6cd2024
SHA256

1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9
SHA512

4a795ddd4f2d0d0ffde973162a9b8636d2cb9bc7f921d59a72c100b27789c8f89fd746fb4a9c4bfaebc7148dafc2fef0998cc623af142b4f8bc000080232c2cf
SSDEEP

12288:09HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hx4:4Z1xuVVjfFoynPaVBUR8f+kN10EBc

Score

10^/10

darkcomet persistence rat trojan

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\Z71v3uLvbWMc\\/rat/rat"	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\Z71v3uLvbWMc\\/rat/rat"	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe

Drops file in System32 directory 4 IoCs

Processes:

1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe

description	ioc	process
File created	C:\Windows\SysWOW64\rat\rat	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
File created	C:\Windows\SysWOW64\Z71v3uLvbWMc\rat\rat	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
File opened for modification	C:\Windows\SysWOW64\Z71v3uLvbWMc\rat\rat	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
File opened for modification	C:\Windows\SysWOW64\Z71v3uLvbWMc\	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeSecurityPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeTakeOwnershipPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeLoadDriverPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeSystemProfilePrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeSystemtimePrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeProfSingleProcessPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeIncBasePriorityPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeCreatePagefilePrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeBackupPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeRestorePrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeShutdownPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeDebugPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeSystemEnvironmentPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeChangeNotifyPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeRemoteShutdownPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeUndockPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeManageVolumePrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeImpersonatePrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: SeCreateGlobalPrivilege	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: 33	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: 34	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: 35	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
Token: 36	4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe

pid process

4392 1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe

pid	process
4392	1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe

C:\Users\Admin\AppData\Local\Temp\1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe
"C:\Users\Admin\AppData\Local\Temp\1beef4b921d7ab1808248a9a89f627385fd047c8b573104f74f0d17a2555a8c9.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4392