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

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2496 msdcsc.exe

pid	process
2496	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe

pid	process
2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.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-1-5-21-330940541-141609230-1670313778-1000\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 46 IoCs

Processes:

488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeSecurityPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeTakeOwnershipPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeLoadDriverPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeSystemProfilePrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeSystemtimePrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeProfSingleProcessPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeIncBasePriorityPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeCreatePagefilePrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeBackupPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeRestorePrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeShutdownPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeDebugPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeSystemEnvironmentPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeChangeNotifyPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeRemoteShutdownPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeUndockPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeManageVolumePrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeImpersonatePrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeCreateGlobalPrivilege	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: 33	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: 34	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: 35	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe
Token: SeIncreaseQuotaPrivilege	2496	msdcsc.exe
Token: SeSecurityPrivilege	2496	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2496	msdcsc.exe
Token: SeLoadDriverPrivilege	2496	msdcsc.exe
Token: SeSystemProfilePrivilege	2496	msdcsc.exe
Token: SeSystemtimePrivilege	2496	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2496	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2496	msdcsc.exe
Token: SeCreatePagefilePrivilege	2496	msdcsc.exe
Token: SeBackupPrivilege	2496	msdcsc.exe
Token: SeRestorePrivilege	2496	msdcsc.exe
Token: SeShutdownPrivilege	2496	msdcsc.exe
Token: SeDebugPrivilege	2496	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2496	msdcsc.exe
Token: SeChangeNotifyPrivilege	2496	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2496	msdcsc.exe
Token: SeUndockPrivilege	2496	msdcsc.exe
Token: SeManageVolumePrivilege	2496	msdcsc.exe
Token: SeImpersonatePrivilege	2496	msdcsc.exe
Token: SeCreateGlobalPrivilege	2496	msdcsc.exe
Token: 33	2496	msdcsc.exe
Token: 34	2496	msdcsc.exe
Token: 35	2496	msdcsc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

DllHost.exe

pid process

2688 DllHost.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2496 msdcsc.exe

pid	process
2688	DllHost.exe

pid	process
2496	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe

description	pid	process	target process
PID 2440 wrote to memory of 2496	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe	msdcsc.exe
PID 2440 wrote to memory of 2496	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe	msdcsc.exe
PID 2440 wrote to memory of 2496	2440	488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee.exe	msdcsc.exe
PID 2440 wrote to memory of 2496	2440	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
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2440

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:2496

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:2688

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\CHRYSANTHEMUM.JPG
Filesize
858KB

MD5
076e3caed758a1c18c91a0e9cae3368f

SHA1
f5f8ad26819a471318d24631fa5055036712a87e

SHA256
954f7d96502b5c5fe2e98a5045bca7f5e9ba11e3dbf92a5c0214a6aa4c7f2208

SHA512
7b8b9adf2dc67871b06fb9094bcd81e8834643cd9af96a0af591c2978bbe2fb7f53ff9b54ae09099aed97db727cd42df4ef02662ef4c6d7cf8023561ddccc7f2

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
1.5MB

MD5
e5ac403126ca121393b42a4598498cbd

SHA1
9f29ca8c7e7e31e98e89f0f55079f36606bcdd5e

SHA256
488b3504a1017ce9135816b3eefcdabfcd510f2e76ec32c946dd7f34c5d856ee

SHA512
fdcd1675b2754fb22e28988c814fa2cddaa8984cdf418b3b2332874a2c1f450c43edc7f8ccbe407b01d6b66b39bc8476616b306f7f070280cfa6b58778096783

Download Submit
memory/2440-0-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2440-5-0x00000000034D0000-0x00000000034D2000-memory.dmp

Filesize
8KB

Download
memory/2440-19-0x0000000000400000-0x0000000000590000-memory.dmp

Filesize
1.6MB

Download
memory/2496-16-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2496-20-0x0000000000400000-0x0000000000590000-memory.dmp

Filesize
1.6MB

Download
memory/2496-23-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2496-24-0x0000000000400000-0x0000000000590000-memory.dmp

Filesize
1.6MB

Download
memory/2688-6-0x00000000000F0000-0x00000000000F2000-memory.dmp

Filesize
8KB

Download
memory/2688-7-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2688-22-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads