darkcomet | b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20

General

Target

b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Size

251KB
MD5

13f25517b98fdc189bf40e62782c677a
SHA1

9ad5a3a60cbd712a904f925e789bcbe61cb22ba8
SHA256

b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20
SHA512

bb136fc1d84e5dcce27477e3ad9633a24cb4a523618cdea314c759ad7528d20bbb5a9f7f9fadec139a131f8208b6cdc569e4cbeb6e3f45664e34d00eec66dcc0

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:

b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.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"	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.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
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

692 msdcsc.exe

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

pid	process
692	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:

b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\International\Geo\Nation	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe

Windows security modification 2 TTPs 1 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

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\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

Modifies registry class 1 IoCs

Processes:

b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeSecurityPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeTakeOwnershipPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeLoadDriverPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeSystemProfilePrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeSystemtimePrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeProfSingleProcessPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeIncBasePriorityPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeCreatePagefilePrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeBackupPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeRestorePrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeShutdownPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeDebugPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeSystemEnvironmentPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeChangeNotifyPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeRemoteShutdownPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeUndockPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeManageVolumePrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeImpersonatePrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeCreateGlobalPrivilege	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: 33	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: 34	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: 35	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: 36	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
Token: SeIncreaseQuotaPrivilege	692	msdcsc.exe
Token: SeSecurityPrivilege	692	msdcsc.exe
Token: SeTakeOwnershipPrivilege	692	msdcsc.exe
Token: SeLoadDriverPrivilege	692	msdcsc.exe
Token: SeSystemProfilePrivilege	692	msdcsc.exe
Token: SeSystemtimePrivilege	692	msdcsc.exe
Token: SeProfSingleProcessPrivilege	692	msdcsc.exe
Token: SeIncBasePriorityPrivilege	692	msdcsc.exe
Token: SeCreatePagefilePrivilege	692	msdcsc.exe
Token: SeBackupPrivilege	692	msdcsc.exe
Token: SeRestorePrivilege	692	msdcsc.exe
Token: SeShutdownPrivilege	692	msdcsc.exe
Token: SeDebugPrivilege	692	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	692	msdcsc.exe
Token: SeChangeNotifyPrivilege	692	msdcsc.exe
Token: SeRemoteShutdownPrivilege	692	msdcsc.exe
Token: SeUndockPrivilege	692	msdcsc.exe
Token: SeManageVolumePrivilege	692	msdcsc.exe
Token: SeImpersonatePrivilege	692	msdcsc.exe
Token: SeCreateGlobalPrivilege	692	msdcsc.exe
Token: 33	692	msdcsc.exe
Token: 34	692	msdcsc.exe
Token: 35	692	msdcsc.exe
Token: 36	692	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

692 msdcsc.exe

pid	process
692	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exemsdcsc.exe

description	pid	process	target process
PID 900 wrote to memory of 692	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe	msdcsc.exe
PID 900 wrote to memory of 692	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe	msdcsc.exe
PID 900 wrote to memory of 692	900	b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe	msdcsc.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe
PID 692 wrote to memory of 3844	692	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.exe
"C:\Users\Admin\AppData\Local\Temp\b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20.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:900

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Modifies security service
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:692

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:3844

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

5

T1112

Disabling Security Tools

2

T1089

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
MD5
13f25517b98fdc189bf40e62782c677a

SHA1
9ad5a3a60cbd712a904f925e789bcbe61cb22ba8

SHA256
b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20

SHA512
bb136fc1d84e5dcce27477e3ad9633a24cb4a523618cdea314c759ad7528d20bbb5a9f7f9fadec139a131f8208b6cdc569e4cbeb6e3f45664e34d00eec66dcc0

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
13f25517b98fdc189bf40e62782c677a

SHA1
9ad5a3a60cbd712a904f925e789bcbe61cb22ba8

SHA256
b61182634b32940e012d1551df9983cf12b53816c89ccfe8c68b185767362a20

SHA512
bb136fc1d84e5dcce27477e3ad9633a24cb4a523618cdea314c759ad7528d20bbb5a9f7f9fadec139a131f8208b6cdc569e4cbeb6e3f45664e34d00eec66dcc0

Download Submit
memory/692-115-0x0000000000000000-mapping.dmp

Download
memory/692-118-0x0000000000840000-0x0000000000841000-memory.dmp

Filesize
4KB

Download
memory/900-114-0x0000000000780000-0x0000000000781000-memory.dmp

Filesize
4KB

Download
memory/3844-119-0x0000000000000000-mapping.dmp

Download
memory/3844-120-0x0000000000A80000-0x0000000000A81000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads