darkcomet | 62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6

General

Target

62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Size

283KB
MD5

250c1edca599ee5249e355479e43cbed
SHA1

3bf1484a1b5cbbee4b04f97c6c6922d9a5453d3c
SHA256

62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6
SHA512

c358655cb6244abae04634451ef2d8b2fa4d7b226d4473d92eed4b05a5bbaa5c42be67e00a98edc75bea50a7468ca62b0153696ce6c789223bcbcb70d025c774

Score

10^/10

darkcomet evasion persistence rat trojan upx

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:

62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.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"	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

msdcsc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
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

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 1 IoCs

Processes:

msdcsc.exe

pid process

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

Hidden Files and Directories
T1158

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

pid	process
800	msdcsc.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.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

800 msdcsc.exe

pid	process
800	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeSecurityPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeTakeOwnershipPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeLoadDriverPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeSystemProfilePrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeSystemtimePrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeProfSingleProcessPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeIncBasePriorityPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeCreatePagefilePrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeBackupPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeRestorePrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeShutdownPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeDebugPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeSystemEnvironmentPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeChangeNotifyPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeRemoteShutdownPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeUndockPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeManageVolumePrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeImpersonatePrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeCreateGlobalPrivilege	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: 33	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: 34	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: 35	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: 36	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
Token: SeIncreaseQuotaPrivilege	800	msdcsc.exe
Token: SeSecurityPrivilege	800	msdcsc.exe
Token: SeTakeOwnershipPrivilege	800	msdcsc.exe
Token: SeLoadDriverPrivilege	800	msdcsc.exe
Token: SeSystemProfilePrivilege	800	msdcsc.exe
Token: SeSystemtimePrivilege	800	msdcsc.exe
Token: SeProfSingleProcessPrivilege	800	msdcsc.exe
Token: SeIncBasePriorityPrivilege	800	msdcsc.exe
Token: SeCreatePagefilePrivilege	800	msdcsc.exe
Token: SeBackupPrivilege	800	msdcsc.exe
Token: SeRestorePrivilege	800	msdcsc.exe
Token: SeShutdownPrivilege	800	msdcsc.exe
Token: SeDebugPrivilege	800	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	800	msdcsc.exe
Token: SeChangeNotifyPrivilege	800	msdcsc.exe
Token: SeRemoteShutdownPrivilege	800	msdcsc.exe
Token: SeUndockPrivilege	800	msdcsc.exe
Token: SeManageVolumePrivilege	800	msdcsc.exe
Token: SeImpersonatePrivilege	800	msdcsc.exe
Token: SeCreateGlobalPrivilege	800	msdcsc.exe
Token: 33	800	msdcsc.exe
Token: 34	800	msdcsc.exe
Token: 35	800	msdcsc.exe
Token: 36	800	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

800 msdcsc.exe

pid	process
800	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exemsdcsc.execmd.execmd.exe

description	pid	process	target process
PID 944 wrote to memory of 3356	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe	cmd.exe
PID 944 wrote to memory of 3356	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe	cmd.exe
PID 944 wrote to memory of 3356	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe	cmd.exe
PID 944 wrote to memory of 2912	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe	cmd.exe
PID 944 wrote to memory of 2912	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe	cmd.exe
PID 944 wrote to memory of 2912	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe	cmd.exe
PID 944 wrote to memory of 800	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe	msdcsc.exe
PID 944 wrote to memory of 800	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe	msdcsc.exe
PID 944 wrote to memory of 800	944	62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe	msdcsc.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 800 wrote to memory of 2380	800	msdcsc.exe	notepad.exe
PID 3356 wrote to memory of 3520	3356	cmd.exe	attrib.exe
PID 3356 wrote to memory of 3520	3356	cmd.exe	attrib.exe
PID 3356 wrote to memory of 3520	3356	cmd.exe	attrib.exe
PID 2912 wrote to memory of 3508	2912	cmd.exe	attrib.exe
PID 2912 wrote to memory of 3508	2912	cmd.exe	attrib.exe
PID 2912 wrote to memory of 3508	2912	cmd.exe	attrib.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

msdcsc.exe

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

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

3520 attrib.exe
3508 attrib.exe

pid	process
3520	attrib.exe
3508	attrib.exe

C:\Users\Admin\AppData\Local\Temp\62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe
"C:\Users\Admin\AppData\Local\Temp\62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:944

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:3356

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6.exe" +s +h
3⤵
- Views/modifies file attributes
PID:3520

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:2912

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:3508

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- 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:800

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2380

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

2

T1031

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

7

T1112

Disabling Security Tools

2

T1089

Hidden Files and Directories

2

T1158

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
250c1edca599ee5249e355479e43cbed

SHA1
3bf1484a1b5cbbee4b04f97c6c6922d9a5453d3c

SHA256
62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6

SHA512
c358655cb6244abae04634451ef2d8b2fa4d7b226d4473d92eed4b05a5bbaa5c42be67e00a98edc75bea50a7468ca62b0153696ce6c789223bcbcb70d025c774

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
250c1edca599ee5249e355479e43cbed

SHA1
3bf1484a1b5cbbee4b04f97c6c6922d9a5453d3c

SHA256
62a1ff600ffae28164b1012e08717a87a2ab69fa49f165204092a449201b07c6

SHA512
c358655cb6244abae04634451ef2d8b2fa4d7b226d4473d92eed4b05a5bbaa5c42be67e00a98edc75bea50a7468ca62b0153696ce6c789223bcbcb70d025c774

Download Submit
memory/800-2-0x0000000000000000-mapping.dmp

Download
memory/2380-5-0x0000000000000000-mapping.dmp

Download
memory/2380-6-0x0000000002E30000-0x0000000002E31000-memory.dmp

Filesize
4KB

Download
memory/2380-7-0x0000000000000000-mapping.dmp

Download
memory/2912-1-0x0000000000000000-mapping.dmp

Download
memory/3356-0-0x0000000000000000-mapping.dmp

Download
memory/3508-9-0x0000000000000000-mapping.dmp

Download
memory/3520-8-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads