darkcomet | 98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958

General

Target

98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Size

266KB
MD5

607f3249f01bcb2406e81c2cce900f73
SHA1

ee08e9662d34fa613e43ef7d9c81b393377abded
SHA256

98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958
SHA512

f46ce677320f2de9b0fce39733484485c14274d3a6e391e68a23ce3aa2273d1bd2871f028293b69ce4319afed73efa251d26483ad5522066624fca75208fca0d

Score

10^/10

darkcomet evasion 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:

98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe

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"	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3824 msdcsc.exe
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

pid	process
3824	msdcsc.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Control Panel\International\Geo\Nation	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\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.

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeSecurityPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeTakeOwnershipPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeLoadDriverPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeSystemProfilePrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeSystemtimePrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeProfSingleProcessPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeIncBasePriorityPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeCreatePagefilePrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeBackupPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeRestorePrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeShutdownPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeDebugPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeSystemEnvironmentPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeChangeNotifyPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeRemoteShutdownPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeUndockPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeManageVolumePrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeImpersonatePrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeCreateGlobalPrivilege	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: 33	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: 34	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: 35	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: 36	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
Token: SeIncreaseQuotaPrivilege	3824	msdcsc.exe
Token: SeSecurityPrivilege	3824	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3824	msdcsc.exe
Token: SeLoadDriverPrivilege	3824	msdcsc.exe
Token: SeSystemProfilePrivilege	3824	msdcsc.exe
Token: SeSystemtimePrivilege	3824	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3824	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3824	msdcsc.exe
Token: SeCreatePagefilePrivilege	3824	msdcsc.exe
Token: SeBackupPrivilege	3824	msdcsc.exe
Token: SeRestorePrivilege	3824	msdcsc.exe
Token: SeShutdownPrivilege	3824	msdcsc.exe
Token: SeDebugPrivilege	3824	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3824	msdcsc.exe
Token: SeChangeNotifyPrivilege	3824	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3824	msdcsc.exe
Token: SeUndockPrivilege	3824	msdcsc.exe
Token: SeManageVolumePrivilege	3824	msdcsc.exe
Token: SeImpersonatePrivilege	3824	msdcsc.exe
Token: SeCreateGlobalPrivilege	3824	msdcsc.exe
Token: 33	3824	msdcsc.exe
Token: 34	3824	msdcsc.exe
Token: 35	3824	msdcsc.exe
Token: 36	3824	msdcsc.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.execmd.exemsdcsc.exe

description	pid	process	target process
PID 912 wrote to memory of 2600	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe	cmd.exe
PID 912 wrote to memory of 2600	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe	cmd.exe
PID 912 wrote to memory of 2600	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe	cmd.exe
PID 2600 wrote to memory of 2716	2600	cmd.exe	attrib.exe
PID 2600 wrote to memory of 2716	2600	cmd.exe	attrib.exe
PID 2600 wrote to memory of 2716	2600	cmd.exe	attrib.exe
PID 912 wrote to memory of 3824	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe	msdcsc.exe
PID 912 wrote to memory of 3824	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe	msdcsc.exe
PID 912 wrote to memory of 3824	912	98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe	msdcsc.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe
PID 3824 wrote to memory of 2772	3824	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2716 attrib.exe

pid	process
2716	attrib.exe

C:\Users\Admin\AppData\Local\Temp\98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe
"C:\Users\Admin\AppData\Local\Temp\98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:912

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:2600

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958.exe" +s +h
3⤵
- Views/modifies file attributes
PID:2716

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 WriteProcessMemory
PID:3824

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2772

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

MD5
607f3249f01bcb2406e81c2cce900f73

SHA1
ee08e9662d34fa613e43ef7d9c81b393377abded

SHA256
98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958

SHA512
f46ce677320f2de9b0fce39733484485c14274d3a6e391e68a23ce3aa2273d1bd2871f028293b69ce4319afed73efa251d26483ad5522066624fca75208fca0d

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

MD5
607f3249f01bcb2406e81c2cce900f73

SHA1
ee08e9662d34fa613e43ef7d9c81b393377abded

SHA256
98755eadea7bd0b44fc437ec5bb15f3aaedcf5cb3265e59e579c23dd29086958

SHA512
f46ce677320f2de9b0fce39733484485c14274d3a6e391e68a23ce3aa2273d1bd2871f028293b69ce4319afed73efa251d26483ad5522066624fca75208fca0d

Download Submit
memory/2600-0-0x0000000000000000-mapping.dmp

Download
memory/2716-1-0x0000000000000000-mapping.dmp

Download
memory/2772-5-0x0000000000000000-mapping.dmp

Download
memory/2772-6-0x00000000008C0000-0x00000000008C1000-memory.dmp

Filesize
4KB

Download
memory/2772-7-0x0000000000000000-mapping.dmp

Download
memory/3824-2-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads