darkcomet | 9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661

General

Target

9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Size

579KB
MD5

68a54e3adbf81b3b808c11da8ce7c68a
SHA1

c7e1f952fd870d31508e69e41adc9f625781e34e
SHA256

9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661
SHA512

9ccfbf2dacf6994c0f87e1fb32571c8e50085cd10e14860684e2ea421dd4ebd59884c5a5d6fe98fdee22ddd8e89c40e4962f776032dc730d0f163a6bdf3c808d
SSDEEP

12288:nVDHFNzdkfqQNQECtK/lGRgOUqmq9kR6lhKXrJjpfmOnX/M:VDHFNBkyQNQ9tK/cRgOnmq9g6QXnE

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

alankaboot.no-ip.biz:1604

Mutex

DC_MUTEX-F54S21D

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
JbvaliXHAQvv
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:

9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

368 msdcsc.exe

pid	process
368	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:

9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 368 set thread context of 3432 368 msdcsc.exe iexplore.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 368 set thread context of 3432	368	msdcsc.exe	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeSecurityPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeTakeOwnershipPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeLoadDriverPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeSystemProfilePrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeSystemtimePrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeProfSingleProcessPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeIncBasePriorityPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeCreatePagefilePrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeBackupPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeRestorePrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeShutdownPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeDebugPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeSystemEnvironmentPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeChangeNotifyPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeRemoteShutdownPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeUndockPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeManageVolumePrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeImpersonatePrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeCreateGlobalPrivilege	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: 33	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: 34	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: 35	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: 36	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
Token: SeIncreaseQuotaPrivilege	368	msdcsc.exe
Token: SeSecurityPrivilege	368	msdcsc.exe
Token: SeTakeOwnershipPrivilege	368	msdcsc.exe
Token: SeLoadDriverPrivilege	368	msdcsc.exe
Token: SeSystemProfilePrivilege	368	msdcsc.exe
Token: SeSystemtimePrivilege	368	msdcsc.exe
Token: SeProfSingleProcessPrivilege	368	msdcsc.exe
Token: SeIncBasePriorityPrivilege	368	msdcsc.exe
Token: SeCreatePagefilePrivilege	368	msdcsc.exe
Token: SeBackupPrivilege	368	msdcsc.exe
Token: SeRestorePrivilege	368	msdcsc.exe
Token: SeShutdownPrivilege	368	msdcsc.exe
Token: SeDebugPrivilege	368	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	368	msdcsc.exe
Token: SeChangeNotifyPrivilege	368	msdcsc.exe
Token: SeRemoteShutdownPrivilege	368	msdcsc.exe
Token: SeUndockPrivilege	368	msdcsc.exe
Token: SeManageVolumePrivilege	368	msdcsc.exe
Token: SeImpersonatePrivilege	368	msdcsc.exe
Token: SeCreateGlobalPrivilege	368	msdcsc.exe
Token: 33	368	msdcsc.exe
Token: 34	368	msdcsc.exe
Token: 35	368	msdcsc.exe
Token: 36	368	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	3432	iexplore.exe
Token: SeSecurityPrivilege	3432	iexplore.exe
Token: SeTakeOwnershipPrivilege	3432	iexplore.exe
Token: SeLoadDriverPrivilege	3432	iexplore.exe
Token: SeSystemProfilePrivilege	3432	iexplore.exe
Token: SeSystemtimePrivilege	3432	iexplore.exe
Token: SeProfSingleProcessPrivilege	3432	iexplore.exe
Token: SeIncBasePriorityPrivilege	3432	iexplore.exe
Token: SeCreatePagefilePrivilege	3432	iexplore.exe
Token: SeBackupPrivilege	3432	iexplore.exe
Token: SeRestorePrivilege	3432	iexplore.exe
Token: SeShutdownPrivilege	3432	iexplore.exe
Token: SeDebugPrivilege	3432	iexplore.exe
Token: SeSystemEnvironmentPrivilege	3432	iexplore.exe
Token: SeChangeNotifyPrivilege	3432	iexplore.exe
Token: SeRemoteShutdownPrivilege	3432	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

3432 iexplore.exe

pid	process
3432	iexplore.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exemsdcsc.exe

description	pid	process	target process
PID 1596 wrote to memory of 368	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe	msdcsc.exe
PID 1596 wrote to memory of 368	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe	msdcsc.exe
PID 1596 wrote to memory of 368	1596	9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe	msdcsc.exe
PID 368 wrote to memory of 3432	368	msdcsc.exe	iexplore.exe
PID 368 wrote to memory of 3432	368	msdcsc.exe	iexplore.exe
PID 368 wrote to memory of 3432	368	msdcsc.exe	iexplore.exe
PID 368 wrote to memory of 3432	368	msdcsc.exe	iexplore.exe
PID 368 wrote to memory of 3432	368	msdcsc.exe	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.exe
"C:\Users\Admin\AppData\Local\Temp\9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661.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:1596

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
"C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:368

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3432

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
Filesize
579KB

MD5
68a54e3adbf81b3b808c11da8ce7c68a

SHA1
c7e1f952fd870d31508e69e41adc9f625781e34e

SHA256
9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661

SHA512
9ccfbf2dacf6994c0f87e1fb32571c8e50085cd10e14860684e2ea421dd4ebd59884c5a5d6fe98fdee22ddd8e89c40e4962f776032dc730d0f163a6bdf3c808d

Download Submit
C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
Filesize
579KB

MD5
68a54e3adbf81b3b808c11da8ce7c68a

SHA1
c7e1f952fd870d31508e69e41adc9f625781e34e

SHA256
9802c5876d0742a696675d5f8643e54bc4867f912c7b0a1d30b7c2de11ec0661

SHA512
9ccfbf2dacf6994c0f87e1fb32571c8e50085cd10e14860684e2ea421dd4ebd59884c5a5d6fe98fdee22ddd8e89c40e4962f776032dc730d0f163a6bdf3c808d

Download Submit
memory/368-135-0x0000000000000000-mapping.dmp

Download
memory/368-139-0x00000000021A0000-0x0000000002200000-memory.dmp

Filesize
384KB

Download
memory/368-140-0x0000000000400000-0x0000000000504000-memory.dmp

Filesize
1.0MB

Download
memory/1596-132-0x0000000000400000-0x0000000000504000-memory.dmp

Filesize
1.0MB

Download
memory/1596-133-0x0000000002300000-0x0000000002360000-memory.dmp

Filesize
384KB

Download
memory/1596-134-0x0000000003400000-0x0000000003500000-memory.dmp

Filesize
1024KB

Download
memory/1596-138-0x0000000000400000-0x0000000000504000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads