darkcomet | 65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6

General

Target

65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Size

748KB
MD5

83ee51d85cd4ff8e04993585fa2ffdd4
SHA1

2b3001d66cc2a502975f7e0c4688f297ba729e2d
SHA256

65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6
SHA512

715ca23574b7c3ec0882b11f241133386bd86d5f2e2845d7cb488262dfce3c160ccff91bad5baa26fa952eddf024cc8ad9839085dcc22f2b51d0c1cb989fe140
SSDEEP

12288:dk0QVlhmPojAPTMEsUTg0oChO/Q2JbsbjPbN5qhRTtYe3f+Iw86k/9/+rqMd0QZp:u0QRWoJEfg0oChGdJQbjPbNW5tYeP+Gq

Score

10^/10

darkcomet mobd evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

mobd

C2

72.78.91.89:1604

Mutex

DC_MUTEX-F54S21D

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
jhly2TMuqK8k
install
true
offline_keylogger
false
persistence
true
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

T1004

Modify Registry

T1112

Processes:

65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Desktop\\MSDCSC\\msdcsc.exe"	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe

Modifies security service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

msdcsc.exeiexplore.exe

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

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

msdcsc.exeiexplore.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\AntiVirusDisableNotify = "1"	iexplore.exe

Drops file in Drivers directory 1 IoCs

Processes:

65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2016 msdcsc.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1912 cmd.exe

pid	process
2016	msdcsc.exe

pid	process
1912	cmd.exe

Loads dropped DLL 2 IoCs

Processes:

65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe

pid	process
1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.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

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exemsdcsc.exeiexplore.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Desktop\\MSDCSC\\msdcsc.exe"	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Desktop\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Desktop\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 2016 set thread context of 944 2016 msdcsc.exe iexplore.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

108 PING.EXE
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iexplore.exe

pid process

944 iexplore.exe

description	pid	process	target process
PID 2016 set thread context of 944	2016	msdcsc.exe	iexplore.exe

pid	process
108	PING.EXE

pid	process
944	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeSecurityPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeTakeOwnershipPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeLoadDriverPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeSystemProfilePrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeSystemtimePrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeProfSingleProcessPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeIncBasePriorityPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeCreatePagefilePrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeBackupPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeRestorePrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeShutdownPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeDebugPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeSystemEnvironmentPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeChangeNotifyPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeRemoteShutdownPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeUndockPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeManageVolumePrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeImpersonatePrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeCreateGlobalPrivilege	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: 33	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: 34	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: 35	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
Token: SeIncreaseQuotaPrivilege	2016	msdcsc.exe
Token: SeSecurityPrivilege	2016	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2016	msdcsc.exe
Token: SeLoadDriverPrivilege	2016	msdcsc.exe
Token: SeSystemProfilePrivilege	2016	msdcsc.exe
Token: SeSystemtimePrivilege	2016	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2016	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2016	msdcsc.exe
Token: SeCreatePagefilePrivilege	2016	msdcsc.exe
Token: SeBackupPrivilege	2016	msdcsc.exe
Token: SeRestorePrivilege	2016	msdcsc.exe
Token: SeShutdownPrivilege	2016	msdcsc.exe
Token: SeDebugPrivilege	2016	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2016	msdcsc.exe
Token: SeChangeNotifyPrivilege	2016	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2016	msdcsc.exe
Token: SeUndockPrivilege	2016	msdcsc.exe
Token: SeManageVolumePrivilege	2016	msdcsc.exe
Token: SeImpersonatePrivilege	2016	msdcsc.exe
Token: SeCreateGlobalPrivilege	2016	msdcsc.exe
Token: 33	2016	msdcsc.exe
Token: 34	2016	msdcsc.exe
Token: 35	2016	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	944	iexplore.exe
Token: SeSecurityPrivilege	944	iexplore.exe
Token: SeTakeOwnershipPrivilege	944	iexplore.exe
Token: SeLoadDriverPrivilege	944	iexplore.exe
Token: SeSystemProfilePrivilege	944	iexplore.exe
Token: SeSystemtimePrivilege	944	iexplore.exe
Token: SeProfSingleProcessPrivilege	944	iexplore.exe
Token: SeIncBasePriorityPrivilege	944	iexplore.exe
Token: SeCreatePagefilePrivilege	944	iexplore.exe
Token: SeBackupPrivilege	944	iexplore.exe
Token: SeRestorePrivilege	944	iexplore.exe
Token: SeShutdownPrivilege	944	iexplore.exe
Token: SeDebugPrivilege	944	iexplore.exe
Token: SeSystemEnvironmentPrivilege	944	iexplore.exe
Token: SeChangeNotifyPrivilege	944	iexplore.exe
Token: SeRemoteShutdownPrivilege	944	iexplore.exe
Token: SeUndockPrivilege	944	iexplore.exe
Token: SeManageVolumePrivilege	944	iexplore.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1336 wrote to memory of 1912	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe	cmd.exe
PID 1336 wrote to memory of 1912	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe	cmd.exe
PID 1336 wrote to memory of 1912	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe	cmd.exe
PID 1336 wrote to memory of 1912	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe	cmd.exe
PID 1336 wrote to memory of 2016	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe	msdcsc.exe
PID 1336 wrote to memory of 2016	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe	msdcsc.exe
PID 1336 wrote to memory of 2016	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe	msdcsc.exe
PID 1336 wrote to memory of 2016	1336	65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe	msdcsc.exe
PID 1912 wrote to memory of 108	1912	cmd.exe	PING.EXE
PID 1912 wrote to memory of 108	1912	cmd.exe	PING.EXE
PID 1912 wrote to memory of 108	1912	cmd.exe	PING.EXE
PID 1912 wrote to memory of 108	1912	cmd.exe	PING.EXE
PID 2016 wrote to memory of 944	2016	msdcsc.exe	iexplore.exe
PID 2016 wrote to memory of 944	2016	msdcsc.exe	iexplore.exe
PID 2016 wrote to memory of 944	2016	msdcsc.exe	iexplore.exe
PID 2016 wrote to memory of 944	2016	msdcsc.exe	iexplore.exe
PID 2016 wrote to memory of 944	2016	msdcsc.exe	iexplore.exe
PID 2016 wrote to memory of 944	2016	msdcsc.exe	iexplore.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

msdcsc.exe

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

C:\Users\Admin\AppData\Local\Temp\65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe
"C:\Users\Admin\AppData\Local\Temp\65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.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:1336

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1912

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 4
3⤵
- Runs ping.exe
PID:108

C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe
"C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe"
2⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2016

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
- Modifies security service
- Windows security bypass
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:944

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

6

T1112

Disabling Security Tools

2

T1089

Credential Access

Discovery

System Information Discovery

1

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe
Filesize
748KB

MD5
83ee51d85cd4ff8e04993585fa2ffdd4

SHA1
2b3001d66cc2a502975f7e0c4688f297ba729e2d

SHA256
65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6

SHA512
715ca23574b7c3ec0882b11f241133386bd86d5f2e2845d7cb488262dfce3c160ccff91bad5baa26fa952eddf024cc8ad9839085dcc22f2b51d0c1cb989fe140

Download Submit
C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe
Filesize
748KB

MD5
83ee51d85cd4ff8e04993585fa2ffdd4

SHA1
2b3001d66cc2a502975f7e0c4688f297ba729e2d

SHA256
65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6

SHA512
715ca23574b7c3ec0882b11f241133386bd86d5f2e2845d7cb488262dfce3c160ccff91bad5baa26fa952eddf024cc8ad9839085dcc22f2b51d0c1cb989fe140

Download Submit
\Users\Admin\Desktop\MSDCSC\msdcsc.exe
Filesize
748KB

MD5
83ee51d85cd4ff8e04993585fa2ffdd4

SHA1
2b3001d66cc2a502975f7e0c4688f297ba729e2d

SHA256
65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6

SHA512
715ca23574b7c3ec0882b11f241133386bd86d5f2e2845d7cb488262dfce3c160ccff91bad5baa26fa952eddf024cc8ad9839085dcc22f2b51d0c1cb989fe140

Download Submit
\Users\Admin\Desktop\MSDCSC\msdcsc.exe
Filesize
748KB

MD5
83ee51d85cd4ff8e04993585fa2ffdd4

SHA1
2b3001d66cc2a502975f7e0c4688f297ba729e2d

SHA256
65b1c2b02f95d0cdda9636d6e337bf6440ec000ce592cd30140ee2eeb9f34ea6

SHA512
715ca23574b7c3ec0882b11f241133386bd86d5f2e2845d7cb488262dfce3c160ccff91bad5baa26fa952eddf024cc8ad9839085dcc22f2b51d0c1cb989fe140

Download Submit
memory/108-59-0x0000000000000000-mapping.dmp

Download
memory/1336-54-0x00000000762D1000-0x00000000762D3000-memory.dmp

Filesize
8KB

Download
memory/1912-55-0x0000000000000000-mapping.dmp

Download
memory/2016-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads