darkcomet | a07b6459e76d64aaa3af87c767b51778085603a2b539dcab1d75468f9d63fe86

General

Target

488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Size

1.5MB
MD5

e5ac403126ca121393b42a4598498cbd
SHA1

9f29ca8c7e7e31e98e89f0f55079f36606bcdd5e
SHA256

488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee
SHA512

fdcd1675b2754fb22e28988c814fa2cddaa8984cdf418b3b2332874a2c1f450c43edc7f8ccbe407b01d6b66b39bc8476616b306f7f070280cfa6b58778096783
SSDEEP

24576:xZ1xuVVjfFoynPaVBUR8f+kN10EB1x5cyLzoy4z5LPrMcs5dmYOYFQn1s97QJv8E:LQDgok30mzbL0zzJsKJS1QJv8wBT

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

192.168.124.132:1604

Mutex

DC_MUTEX-LNCZHL2

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
pdA8zwNEGd25
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

T1547.004

Modify Registry

T1112

Processes:

488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.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"	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe

Drops file in Drivers directory 1 IoCs

Processes:

488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.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:

488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2196 msdcsc.exe

pid	process
2196	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeSecurityPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeTakeOwnershipPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeLoadDriverPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeSystemProfilePrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeSystemtimePrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeProfSingleProcessPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeIncBasePriorityPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeCreatePagefilePrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeBackupPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeRestorePrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeShutdownPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeDebugPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeSystemEnvironmentPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeChangeNotifyPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeRemoteShutdownPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeUndockPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeManageVolumePrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeImpersonatePrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeCreateGlobalPrivilege	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: 33	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: 34	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: 35	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: 36	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeIncreaseQuotaPrivilege	2196	msdcsc.exe
Token: SeSecurityPrivilege	2196	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2196	msdcsc.exe
Token: SeLoadDriverPrivilege	2196	msdcsc.exe
Token: SeSystemProfilePrivilege	2196	msdcsc.exe
Token: SeSystemtimePrivilege	2196	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2196	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2196	msdcsc.exe
Token: SeCreatePagefilePrivilege	2196	msdcsc.exe
Token: SeBackupPrivilege	2196	msdcsc.exe
Token: SeRestorePrivilege	2196	msdcsc.exe
Token: SeShutdownPrivilege	2196	msdcsc.exe
Token: SeDebugPrivilege	2196	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2196	msdcsc.exe
Token: SeChangeNotifyPrivilege	2196	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2196	msdcsc.exe
Token: SeUndockPrivilege	2196	msdcsc.exe
Token: SeManageVolumePrivilege	2196	msdcsc.exe
Token: SeImpersonatePrivilege	2196	msdcsc.exe
Token: SeCreateGlobalPrivilege	2196	msdcsc.exe
Token: 33	2196	msdcsc.exe
Token: 34	2196	msdcsc.exe
Token: 35	2196	msdcsc.exe
Token: 36	2196	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2196 msdcsc.exe

pid	process
2196	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe

description	pid	process	target process
PID 4076 wrote to memory of 2196	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe	msdcsc.exe
PID 4076 wrote to memory of 2196	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe	msdcsc.exe
PID 4076 wrote to memory of 2196	4076	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
"C:\Users\Admin\AppData\Local\Temp\488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4076

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2196

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4264 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
1⤵
PID:448

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
1.5MB

MD5
e5ac403126ca121393b42a4598498cbd

SHA1
9f29ca8c7e7e31e98e89f0f55079f36606bcdd5e

SHA256
488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee

SHA512
fdcd1675b2754fb22e28988c814fa2cddaa8984cdf418b3b2332874a2c1f450c43edc7f8ccbe407b01d6b66b39bc8476616b306f7f070280cfa6b58778096783

Download Submit
memory/2196-15-0x00000000027E0000-0x00000000027E1000-memory.dmp

Filesize
4KB

Download
memory/2196-17-0x0000000000400000-0x0000000000590000-memory.dmp

Filesize
1.6MB

Download
memory/2196-19-0x0000000000400000-0x0000000000590000-memory.dmp

Filesize
1.6MB

Download
memory/4076-0-0x0000000002370000-0x0000000002371000-memory.dmp

Filesize
4KB

Download
memory/4076-16-0x0000000000400000-0x0000000000590000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads