darkcomet | af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a

General

Target

af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Size

725KB
MD5

85e635250ad13b49f453a352c31d030b
SHA1

20be5207ea270f8df64ca658ffebb8f538980b58
SHA256

af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a
SHA512

d43bdd85b10b4c1111535b81d97893e76c41d07587db3aa2158dc592c379c21a57e990f8121fcd2bfaa9f0cef84ae5bd67ade07f9b43be0ef24daedbee5de56f
SSDEEP

12288:U9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hE7x1:YZ1xuVVjfFoynPaVBUR8f+kN10EBGd1

Score

10^/10

darkcomet slave evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Slave

C2

bonke.no-ip.org:1604

asylumisathug.zapto.org:1604

Mutex

DC_MUTEX-Y98TTWR

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
U98ByHPaUCXn
install
true
offline_keylogger
true
persistence
true
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:

af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.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"	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe

Disables Task Manager via registry modification
evasion
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

4192 msdcsc.exe

pid	process
4192	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:

af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\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

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeSecurityPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeTakeOwnershipPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeLoadDriverPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeSystemProfilePrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeSystemtimePrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeProfSingleProcessPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeIncBasePriorityPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeCreatePagefilePrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeBackupPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeRestorePrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeShutdownPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeDebugPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeSystemEnvironmentPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeChangeNotifyPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeRemoteShutdownPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeUndockPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeManageVolumePrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeImpersonatePrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeCreateGlobalPrivilege	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: 33	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: 34	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: 35	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: 36	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
Token: SeIncreaseQuotaPrivilege	4192	msdcsc.exe
Token: SeSecurityPrivilege	4192	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4192	msdcsc.exe
Token: SeLoadDriverPrivilege	4192	msdcsc.exe
Token: SeSystemProfilePrivilege	4192	msdcsc.exe
Token: SeSystemtimePrivilege	4192	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4192	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4192	msdcsc.exe
Token: SeCreatePagefilePrivilege	4192	msdcsc.exe
Token: SeBackupPrivilege	4192	msdcsc.exe
Token: SeRestorePrivilege	4192	msdcsc.exe
Token: SeShutdownPrivilege	4192	msdcsc.exe
Token: SeDebugPrivilege	4192	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4192	msdcsc.exe
Token: SeChangeNotifyPrivilege	4192	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4192	msdcsc.exe
Token: SeUndockPrivilege	4192	msdcsc.exe
Token: SeManageVolumePrivilege	4192	msdcsc.exe
Token: SeImpersonatePrivilege	4192	msdcsc.exe
Token: SeCreateGlobalPrivilege	4192	msdcsc.exe
Token: 33	4192	msdcsc.exe
Token: 34	4192	msdcsc.exe
Token: 35	4192	msdcsc.exe
Token: 36	4192	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

4192 msdcsc.exe

pid	process
4192	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe

description	pid	process	target process
PID 4296 wrote to memory of 4192	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe	msdcsc.exe
PID 4296 wrote to memory of 4192	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe	msdcsc.exe
PID 4296 wrote to memory of 4192	4296	af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.exe
"C:\Users\Admin\AppData\Local\Temp\af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a.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:4296

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:4192

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
725KB

MD5
85e635250ad13b49f453a352c31d030b

SHA1
20be5207ea270f8df64ca658ffebb8f538980b58

SHA256
af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a

SHA512
d43bdd85b10b4c1111535b81d97893e76c41d07587db3aa2158dc592c379c21a57e990f8121fcd2bfaa9f0cef84ae5bd67ade07f9b43be0ef24daedbee5de56f

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
725KB

MD5
85e635250ad13b49f453a352c31d030b

SHA1
20be5207ea270f8df64ca658ffebb8f538980b58

SHA256
af5d927c51c528b6aa08c025a4b794b4852516e4c40f369fe7854ed42eae259a

SHA512
d43bdd85b10b4c1111535b81d97893e76c41d07587db3aa2158dc592c379c21a57e990f8121fcd2bfaa9f0cef84ae5bd67ade07f9b43be0ef24daedbee5de56f

Download Submit
memory/4192-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads