darkcomet | 8792d522649c672f68fcd7ae8df6a55a7171daf2be2370d3e1c6966153cf2d7c

General

Target

cb5d869480fadf9ac88734a531f24ae3.exe
Size

384KB
MD5

cb5d869480fadf9ac88734a531f24ae3
SHA1

04a2cea38e15c21d3dc143e0f7d17ffc0432a748
SHA256

8792d522649c672f68fcd7ae8df6a55a7171daf2be2370d3e1c6966153cf2d7c
SHA512

fe8515c4b734561984c274b5c40daca558a0cb7ea815304a31c1567807dc04506a0de66ca141696ca7f1cff881fabbc4ecea72982106975b4c1baa7b5ada1463

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

jgcgame.ddns.net:1604

jgcgame.ddns.net:8080

Mutex

DC_MUTEX-YKH6571

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
uRgFclvSN3Xu
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:

cb5d869480fadf9ac88734a531f24ae3.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"	cb5d869480fadf9ac88734a531f24ae3.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

msdcsc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.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
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Disables RegEdit via registry modification
evasion
Disables Task Manager via registry modification
evasion
Executes dropped EXE 2 IoCs

Processes:

msdcsc.exemsdcsc.exe

pid process

1988 msdcsc.exe
2040 msdcsc.exe
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158
Loads dropped DLL 2 IoCs

Processes:

cb5d869480fadf9ac88734a531f24ae3.exe

pid process

1676 cb5d869480fadf9ac88734a531f24ae3.exe
1676 cb5d869480fadf9ac88734a531f24ae3.exe

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

pid	process
1988	msdcsc.exe
2040	msdcsc.exe

pid	process
1676	cb5d869480fadf9ac88734a531f24ae3.exe
1676	cb5d869480fadf9ac88734a531f24ae3.exe

Windows security modification 2 TTPs 2 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\UpdatesDisableNotify = "1"	msdcsc.exe
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:

cb5d869480fadf9ac88734a531f24ae3.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4210623931-3856158591-1213714290-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	cb5d869480fadf9ac88734a531f24ae3.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

cb5d869480fadf9ac88734a531f24ae3.exemsdcsc.exe

description	pid	process	target process
PID 1416 set thread context of 1676	1416	cb5d869480fadf9ac88734a531f24ae3.exe	cb5d869480fadf9ac88734a531f24ae3.exe
PID 1988 set thread context of 2040	1988	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 behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

2040 msdcsc.exe

pid	process
2040	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

cb5d869480fadf9ac88734a531f24ae3.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeSecurityPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeTakeOwnershipPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeLoadDriverPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeSystemProfilePrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeSystemtimePrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeProfSingleProcessPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeIncBasePriorityPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeCreatePagefilePrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeBackupPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeRestorePrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeShutdownPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeDebugPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeSystemEnvironmentPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeChangeNotifyPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeRemoteShutdownPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeUndockPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeManageVolumePrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeImpersonatePrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeCreateGlobalPrivilege	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: 33	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: 34	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: 35	1676	cb5d869480fadf9ac88734a531f24ae3.exe
Token: SeIncreaseQuotaPrivilege	2040	msdcsc.exe
Token: SeSecurityPrivilege	2040	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2040	msdcsc.exe
Token: SeLoadDriverPrivilege	2040	msdcsc.exe
Token: SeSystemProfilePrivilege	2040	msdcsc.exe
Token: SeSystemtimePrivilege	2040	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2040	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2040	msdcsc.exe
Token: SeCreatePagefilePrivilege	2040	msdcsc.exe
Token: SeBackupPrivilege	2040	msdcsc.exe
Token: SeRestorePrivilege	2040	msdcsc.exe
Token: SeShutdownPrivilege	2040	msdcsc.exe
Token: SeDebugPrivilege	2040	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2040	msdcsc.exe
Token: SeChangeNotifyPrivilege	2040	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2040	msdcsc.exe
Token: SeUndockPrivilege	2040	msdcsc.exe
Token: SeManageVolumePrivilege	2040	msdcsc.exe
Token: SeImpersonatePrivilege	2040	msdcsc.exe
Token: SeCreateGlobalPrivilege	2040	msdcsc.exe
Token: 33	2040	msdcsc.exe
Token: 34	2040	msdcsc.exe
Token: 35	2040	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2040 msdcsc.exe

pid	process
2040	msdcsc.exe

Suspicious use of WriteProcessMemory 55 IoCs

Processes:

cb5d869480fadf9ac88734a531f24ae3.execb5d869480fadf9ac88734a531f24ae3.execmd.execmd.exemsdcsc.exemsdcsc.exe

description	pid	process	target process
PID 1416 wrote to memory of 1676	1416	cb5d869480fadf9ac88734a531f24ae3.exe	cb5d869480fadf9ac88734a531f24ae3.exe
PID 1416 wrote to memory of 1676	1416	cb5d869480fadf9ac88734a531f24ae3.exe	cb5d869480fadf9ac88734a531f24ae3.exe
PID 1416 wrote to memory of 1676	1416	cb5d869480fadf9ac88734a531f24ae3.exe	cb5d869480fadf9ac88734a531f24ae3.exe
PID 1416 wrote to memory of 1676	1416	cb5d869480fadf9ac88734a531f24ae3.exe	cb5d869480fadf9ac88734a531f24ae3.exe
PID 1416 wrote to memory of 1676	1416	cb5d869480fadf9ac88734a531f24ae3.exe	cb5d869480fadf9ac88734a531f24ae3.exe
PID 1416 wrote to memory of 1676	1416	cb5d869480fadf9ac88734a531f24ae3.exe	cb5d869480fadf9ac88734a531f24ae3.exe
PID 1676 wrote to memory of 1568	1676	cb5d869480fadf9ac88734a531f24ae3.exe	cmd.exe
PID 1676 wrote to memory of 1568	1676	cb5d869480fadf9ac88734a531f24ae3.exe	cmd.exe
PID 1676 wrote to memory of 1568	1676	cb5d869480fadf9ac88734a531f24ae3.exe	cmd.exe
PID 1676 wrote to memory of 1568	1676	cb5d869480fadf9ac88734a531f24ae3.exe	cmd.exe
PID 1676 wrote to memory of 1564	1676	cb5d869480fadf9ac88734a531f24ae3.exe	cmd.exe
PID 1676 wrote to memory of 1564	1676	cb5d869480fadf9ac88734a531f24ae3.exe	cmd.exe
PID 1676 wrote to memory of 1564	1676	cb5d869480fadf9ac88734a531f24ae3.exe	cmd.exe
PID 1676 wrote to memory of 1564	1676	cb5d869480fadf9ac88734a531f24ae3.exe	cmd.exe
PID 1564 wrote to memory of 1912	1564	cmd.exe	attrib.exe
PID 1564 wrote to memory of 1912	1564	cmd.exe	attrib.exe
PID 1564 wrote to memory of 1912	1564	cmd.exe	attrib.exe
PID 1564 wrote to memory of 1912	1564	cmd.exe	attrib.exe
PID 1568 wrote to memory of 1960	1568	cmd.exe	attrib.exe
PID 1568 wrote to memory of 1960	1568	cmd.exe	attrib.exe
PID 1568 wrote to memory of 1960	1568	cmd.exe	attrib.exe
PID 1568 wrote to memory of 1960	1568	cmd.exe	attrib.exe
PID 1676 wrote to memory of 1988	1676	cb5d869480fadf9ac88734a531f24ae3.exe	msdcsc.exe
PID 1676 wrote to memory of 1988	1676	cb5d869480fadf9ac88734a531f24ae3.exe	msdcsc.exe
PID 1676 wrote to memory of 1988	1676	cb5d869480fadf9ac88734a531f24ae3.exe	msdcsc.exe
PID 1676 wrote to memory of 1988	1676	cb5d869480fadf9ac88734a531f24ae3.exe	msdcsc.exe
PID 1988 wrote to memory of 2040	1988	msdcsc.exe	msdcsc.exe
PID 1988 wrote to memory of 2040	1988	msdcsc.exe	msdcsc.exe
PID 1988 wrote to memory of 2040	1988	msdcsc.exe	msdcsc.exe
PID 1988 wrote to memory of 2040	1988	msdcsc.exe	msdcsc.exe
PID 1988 wrote to memory of 2040	1988	msdcsc.exe	msdcsc.exe
PID 1988 wrote to memory of 2040	1988	msdcsc.exe	msdcsc.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe
PID 2040 wrote to memory of 268	2040	msdcsc.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

msdcsc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	msdcsc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	msdcsc.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1912 attrib.exe
1960 attrib.exe

pid	process
1912	attrib.exe
1960	attrib.exe

C:\Users\Admin\AppData\Local\Temp\cb5d869480fadf9ac88734a531f24ae3.exe
"C:\Users\Admin\AppData\Local\Temp\cb5d869480fadf9ac88734a531f24ae3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1416

C:\Users\Admin\AppData\Local\Temp\cb5d869480fadf9ac88734a531f24ae3.exe
"C:\Users\Admin\AppData\Local\Temp\cb5d869480fadf9ac88734a531f24ae3.exe"
2⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1676

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\cb5d869480fadf9ac88734a531f24ae3.exe" +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:1568

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\cb5d869480fadf9ac88734a531f24ae3.exe" +s +h
4⤵
- Views/modifies file attributes
PID:1960

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:1564

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
4⤵
- Views/modifies file attributes
PID:1912

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 WriteProcessMemory
PID:1988

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
4⤵
- Modifies firewall policy service
- Modifies security service
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2040

C:\Windows\SysWOW64\notepad.exe
notepad
5⤵
PID:268

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2

T1158

Modify Existing Service

2

T1031

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Disabling Security Tools

2

T1089

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
cb5d869480fadf9ac88734a531f24ae3

SHA1
04a2cea38e15c21d3dc143e0f7d17ffc0432a748

SHA256
8792d522649c672f68fcd7ae8df6a55a7171daf2be2370d3e1c6966153cf2d7c

SHA512
fe8515c4b734561984c274b5c40daca558a0cb7ea815304a31c1567807dc04506a0de66ca141696ca7f1cff881fabbc4ecea72982106975b4c1baa7b5ada1463

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
cb5d869480fadf9ac88734a531f24ae3

SHA1
04a2cea38e15c21d3dc143e0f7d17ffc0432a748

SHA256
8792d522649c672f68fcd7ae8df6a55a7171daf2be2370d3e1c6966153cf2d7c

SHA512
fe8515c4b734561984c274b5c40daca558a0cb7ea815304a31c1567807dc04506a0de66ca141696ca7f1cff881fabbc4ecea72982106975b4c1baa7b5ada1463

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
cb5d869480fadf9ac88734a531f24ae3

SHA1
04a2cea38e15c21d3dc143e0f7d17ffc0432a748

SHA256
8792d522649c672f68fcd7ae8df6a55a7171daf2be2370d3e1c6966153cf2d7c

SHA512
fe8515c4b734561984c274b5c40daca558a0cb7ea815304a31c1567807dc04506a0de66ca141696ca7f1cff881fabbc4ecea72982106975b4c1baa7b5ada1463

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
cb5d869480fadf9ac88734a531f24ae3

SHA1
04a2cea38e15c21d3dc143e0f7d17ffc0432a748

SHA256
8792d522649c672f68fcd7ae8df6a55a7171daf2be2370d3e1c6966153cf2d7c

SHA512
fe8515c4b734561984c274b5c40daca558a0cb7ea815304a31c1567807dc04506a0de66ca141696ca7f1cff881fabbc4ecea72982106975b4c1baa7b5ada1463

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
cb5d869480fadf9ac88734a531f24ae3

SHA1
04a2cea38e15c21d3dc143e0f7d17ffc0432a748

SHA256
8792d522649c672f68fcd7ae8df6a55a7171daf2be2370d3e1c6966153cf2d7c

SHA512
fe8515c4b734561984c274b5c40daca558a0cb7ea815304a31c1567807dc04506a0de66ca141696ca7f1cff881fabbc4ecea72982106975b4c1baa7b5ada1463

Download Submit
memory/268-18-0x0000000000000000-mapping.dmp

Download
memory/268-17-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/268-16-0x0000000000000000-mapping.dmp

Download
memory/1564-4-0x0000000000000000-mapping.dmp

Download
memory/1568-3-0x0000000000000000-mapping.dmp

Download
memory/1676-1-0x000000000048F888-mapping.dmp

Download
memory/1676-2-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1676-0-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1912-5-0x0000000000000000-mapping.dmp

Download
memory/1960-6-0x0000000000000000-mapping.dmp

Download
memory/1988-9-0x0000000000000000-mapping.dmp

Download
memory/2040-13-0x000000000048F888-mapping.dmp

Download
memory/2040-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads