darkcomet | 2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

General

Target

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Size

464KB
MD5

455a2fad3532faddf2835a8022988081
SHA1

8d5d184f381a175fff723458fda8999bde0d9438
SHA256

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7
SHA512

e6559c5076ec9d4ccdff2926fa5161b398c462457c6242cd079dfeecc263bc7d1d0b319397aa0d2f6a10579966aa5b020bccd1dc48bf2335c6b266268113cb2f
SSDEEP

6144:f2+6gLCdeFBHGz1iRkHDQA9v+bxcawGTZuUG6CAzQIQn:hadeFdK1iSjQQ2cawQkUG63M

Score

10^/10

darkcomet guest16 evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

212.253.69.142:81

Mutex

DC_MUTEX-TVELAZ0

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
j9iS5ANHsKQh
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

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:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.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"	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Modify Existing Service
T1031

Processes:

msdcsc.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" msdcsc.exe
Windows security bypass 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

msdcsc.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" msdcsc.exe
Executes dropped EXE 2 IoCs

Processes:

msdcsc.exemsdcsc.exe

pid process

1780 msdcsc.exe
1940 msdcsc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	msdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

pid	process
1780	msdcsc.exe
1940	msdcsc.exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/1844-135-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1844-136-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1844-137-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1844-138-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1844-139-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1940-151-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1844-152-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/1940-153-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

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:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe

Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

msdcsc.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" msdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exemsdcsc.exe

description	pid	process	target process
PID 388 set thread context of 1844	388	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 1780 set thread context of 1940	1780	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:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeSecurityPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeTakeOwnershipPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeLoadDriverPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeSystemProfilePrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeSystemtimePrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeProfSingleProcessPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeIncBasePriorityPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeCreatePagefilePrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeBackupPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeRestorePrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeShutdownPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeDebugPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeSystemEnvironmentPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeChangeNotifyPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeRemoteShutdownPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeUndockPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeManageVolumePrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeImpersonatePrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeCreateGlobalPrivilege	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: 33	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: 34	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: 35	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: 36	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeIncreaseQuotaPrivilege	1940	msdcsc.exe
Token: SeSecurityPrivilege	1940	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1940	msdcsc.exe
Token: SeLoadDriverPrivilege	1940	msdcsc.exe
Token: SeSystemProfilePrivilege	1940	msdcsc.exe
Token: SeSystemtimePrivilege	1940	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1940	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1940	msdcsc.exe
Token: SeCreatePagefilePrivilege	1940	msdcsc.exe
Token: SeBackupPrivilege	1940	msdcsc.exe
Token: SeRestorePrivilege	1940	msdcsc.exe
Token: SeShutdownPrivilege	1940	msdcsc.exe
Token: SeDebugPrivilege	1940	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1940	msdcsc.exe
Token: SeChangeNotifyPrivilege	1940	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1940	msdcsc.exe
Token: SeUndockPrivilege	1940	msdcsc.exe
Token: SeManageVolumePrivilege	1940	msdcsc.exe
Token: SeImpersonatePrivilege	1940	msdcsc.exe
Token: SeCreateGlobalPrivilege	1940	msdcsc.exe
Token: 33	1940	msdcsc.exe
Token: 34	1940	msdcsc.exe
Token: 35	1940	msdcsc.exe
Token: 36	1940	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exemsdcsc.exemsdcsc.exe

pid process

388 2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
1780 msdcsc.exe
1940 msdcsc.exe

pid	process
388	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
1780	msdcsc.exe
1940	msdcsc.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exemsdcsc.exe

description	pid	process	target process
PID 388 wrote to memory of 1844	388	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 388 wrote to memory of 1844	388	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 388 wrote to memory of 1844	388	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 388 wrote to memory of 1844	388	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 388 wrote to memory of 1844	388	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 388 wrote to memory of 1844	388	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 388 wrote to memory of 1844	388	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 388 wrote to memory of 1844	388	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 1844 wrote to memory of 1780	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	msdcsc.exe
PID 1844 wrote to memory of 1780	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	msdcsc.exe
PID 1844 wrote to memory of 1780	1844	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	msdcsc.exe
PID 1780 wrote to memory of 1940	1780	msdcsc.exe	msdcsc.exe
PID 1780 wrote to memory of 1940	1780	msdcsc.exe	msdcsc.exe
PID 1780 wrote to memory of 1940	1780	msdcsc.exe	msdcsc.exe
PID 1780 wrote to memory of 1940	1780	msdcsc.exe	msdcsc.exe
PID 1780 wrote to memory of 1940	1780	msdcsc.exe	msdcsc.exe
PID 1780 wrote to memory of 1940	1780	msdcsc.exe	msdcsc.exe
PID 1780 wrote to memory of 1940	1780	msdcsc.exe	msdcsc.exe
PID 1780 wrote to memory of 1940	1780	msdcsc.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
"C:\Users\Admin\AppData\Local\Temp\2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:388

C:\Users\Admin\AppData\Local\Temp\2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
"C:\Users\Admin\AppData\Local\Temp\2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe"
2⤵
- 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:1844

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1780

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
4⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1940

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

5

T1112

Disabling Security Tools

2

T1089

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
464KB

MD5
455a2fad3532faddf2835a8022988081

SHA1
8d5d184f381a175fff723458fda8999bde0d9438

SHA256
2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

SHA512
e6559c5076ec9d4ccdff2926fa5161b398c462457c6242cd079dfeecc263bc7d1d0b319397aa0d2f6a10579966aa5b020bccd1dc48bf2335c6b266268113cb2f

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
464KB

MD5
455a2fad3532faddf2835a8022988081

SHA1
8d5d184f381a175fff723458fda8999bde0d9438

SHA256
2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

SHA512
e6559c5076ec9d4ccdff2926fa5161b398c462457c6242cd079dfeecc263bc7d1d0b319397aa0d2f6a10579966aa5b020bccd1dc48bf2335c6b266268113cb2f

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
464KB

MD5
455a2fad3532faddf2835a8022988081

SHA1
8d5d184f381a175fff723458fda8999bde0d9438

SHA256
2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

SHA512
e6559c5076ec9d4ccdff2926fa5161b398c462457c6242cd079dfeecc263bc7d1d0b319397aa0d2f6a10579966aa5b020bccd1dc48bf2335c6b266268113cb2f

Download Submit
memory/1780-140-0x0000000000000000-mapping.dmp

Download
memory/1844-137-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1844-139-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1844-138-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1844-134-0x0000000000000000-mapping.dmp

Download
memory/1844-136-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1844-135-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1844-152-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1940-145-0x0000000000000000-mapping.dmp

Download
memory/1940-151-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1940-153-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads