darkcomet | 2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca

General

Target

2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Size

283KB
MD5

8907e1d0d4a40c8e246f53531fd91038
SHA1

9c2f5d929f53057e67f1ba925f230127dfaeae07
SHA256

2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca
SHA512

db671efde25adbe37553565ff965228dc3f3b4b899cc4e990f22028ba4758a57a53e15c53464614860ec676068b728a2566bd73be0c021d3f91e12b416aea2b7

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:

2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.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"	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.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

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

Processes:

msdcsc.exe

pid process

1012 msdcsc.exe
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

pid	process
1012	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

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:

2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Control Panel\International\Geo\Nation	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.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:

2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

1012 msdcsc.exe

pid	process
1012	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeSecurityPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeTakeOwnershipPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeLoadDriverPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeSystemProfilePrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeSystemtimePrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeProfSingleProcessPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeIncBasePriorityPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeCreatePagefilePrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeBackupPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeRestorePrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeShutdownPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeDebugPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeSystemEnvironmentPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeChangeNotifyPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeRemoteShutdownPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeUndockPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeManageVolumePrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeImpersonatePrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeCreateGlobalPrivilege	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: 33	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: 34	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: 35	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: 36	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
Token: SeIncreaseQuotaPrivilege	1012	msdcsc.exe
Token: SeSecurityPrivilege	1012	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1012	msdcsc.exe
Token: SeLoadDriverPrivilege	1012	msdcsc.exe
Token: SeSystemProfilePrivilege	1012	msdcsc.exe
Token: SeSystemtimePrivilege	1012	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1012	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1012	msdcsc.exe
Token: SeCreatePagefilePrivilege	1012	msdcsc.exe
Token: SeBackupPrivilege	1012	msdcsc.exe
Token: SeRestorePrivilege	1012	msdcsc.exe
Token: SeShutdownPrivilege	1012	msdcsc.exe
Token: SeDebugPrivilege	1012	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1012	msdcsc.exe
Token: SeChangeNotifyPrivilege	1012	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1012	msdcsc.exe
Token: SeUndockPrivilege	1012	msdcsc.exe
Token: SeManageVolumePrivilege	1012	msdcsc.exe
Token: SeImpersonatePrivilege	1012	msdcsc.exe
Token: SeCreateGlobalPrivilege	1012	msdcsc.exe
Token: 33	1012	msdcsc.exe
Token: 34	1012	msdcsc.exe
Token: 35	1012	msdcsc.exe
Token: 36	1012	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1012 msdcsc.exe

pid	process
1012	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1036 wrote to memory of 3660	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe	cmd.exe
PID 1036 wrote to memory of 3660	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe	cmd.exe
PID 1036 wrote to memory of 3660	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe	cmd.exe
PID 1036 wrote to memory of 3888	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe	cmd.exe
PID 1036 wrote to memory of 3888	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe	cmd.exe
PID 1036 wrote to memory of 3888	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe	cmd.exe
PID 3888 wrote to memory of 420	3888	cmd.exe	attrib.exe
PID 3888 wrote to memory of 420	3888	cmd.exe	attrib.exe
PID 3888 wrote to memory of 420	3888	cmd.exe	attrib.exe
PID 1036 wrote to memory of 1012	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe	msdcsc.exe
PID 1036 wrote to memory of 1012	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe	msdcsc.exe
PID 1036 wrote to memory of 1012	1036	2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe	msdcsc.exe
PID 3660 wrote to memory of 1000	3660	cmd.exe	attrib.exe
PID 3660 wrote to memory of 1000	3660	cmd.exe	attrib.exe
PID 3660 wrote to memory of 1000	3660	cmd.exe	attrib.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe
PID 1012 wrote to memory of 2760	1012	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

420 attrib.exe
1000 attrib.exe

pid	process
420	attrib.exe
1000	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe
"C:\Users\Admin\AppData\Local\Temp\2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe"
1⤵
- 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:1036

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:3660

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca.exe" +s +h
3⤵
- Views/modifies file attributes
PID:1000

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:3888

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:420

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Modifies firewall policy service
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1012

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2760

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

1

T1031

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Hidden Files and Directories

2

T1158

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
MD5
8907e1d0d4a40c8e246f53531fd91038

SHA1
9c2f5d929f53057e67f1ba925f230127dfaeae07

SHA256
2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca

SHA512
db671efde25adbe37553565ff965228dc3f3b4b899cc4e990f22028ba4758a57a53e15c53464614860ec676068b728a2566bd73be0c021d3f91e12b416aea2b7

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
8907e1d0d4a40c8e246f53531fd91038

SHA1
9c2f5d929f53057e67f1ba925f230127dfaeae07

SHA256
2654ec9fe7ccee977306d6edd42e76cc5540210dcf1364f8de82b6c1760168ca

SHA512
db671efde25adbe37553565ff965228dc3f3b4b899cc4e990f22028ba4758a57a53e15c53464614860ec676068b728a2566bd73be0c021d3f91e12b416aea2b7

Download Submit
memory/420-2-0x0000000000000000-mapping.dmp

Download
memory/1000-6-0x0000000000000000-mapping.dmp

Download
memory/1012-3-0x0000000000000000-mapping.dmp

Download
memory/2760-7-0x0000000000000000-mapping.dmp

Download
memory/2760-8-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/2760-9-0x0000000000000000-mapping.dmp

Download
memory/3660-0-0x0000000000000000-mapping.dmp

Download
memory/3888-1-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads