darkcomet | 383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c

General

Target

383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Size

648KB
MD5

1af58b00e3c19a6e3322dc0a0ffa1986
SHA1

d1a72105983af7292db5b13859edd5c82490c5a9
SHA256

383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c
SHA512

ef8b8e64e54cfec7eec3d23b7fc5a7718832c462a35a0ae065d70b1aa5f052e0c9f28259ebc9fcb76bce905609479cf08e4e018c061260ae788f55fd78f754cf
SSDEEP

12288:w6A84PaHhfD/tV9sj5NKR0pau9XGyu2qBVGLQyTPfhQ:VAmBpVKHu0Mu9Xo20VGLVP5Q

Score

10^/10

darkcomet evasion persistence rat trojan

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:

383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe"	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Modify Existing Service
T1031

Processes:

winupdate.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" winupdate.exe
Windows security bypass 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

winupdate.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" winupdate.exe
Executes dropped EXE 1 IoCs

Processes:

winupdate.exe

pid process

956 winupdate.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2024 cmd.exe
Loads dropped DLL 4 IoCs

Processes:

383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exewinupdate.exe

pid process

1732 383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
956 winupdate.exe
956 winupdate.exe
956 winupdate.exe
Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

winupdate.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" winupdate.exe

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

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	winupdate.exe

pid	process
956	winupdate.exe

pid	process
2024	cmd.exe

pid	process
1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
956	winupdate.exe
956	winupdate.exe
956	winupdate.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	winupdate.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exewinupdate.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	winupdate.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

900 PING.EXE

pid	process
900	PING.EXE

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exewinupdate.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeSecurityPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeTakeOwnershipPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeLoadDriverPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeSystemProfilePrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeSystemtimePrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeProfSingleProcessPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeIncBasePriorityPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeCreatePagefilePrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeBackupPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeRestorePrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeShutdownPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeDebugPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeSystemEnvironmentPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeChangeNotifyPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeRemoteShutdownPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeUndockPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeManageVolumePrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeImpersonatePrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeCreateGlobalPrivilege	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: 33	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: 34	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: 35	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
Token: SeIncreaseQuotaPrivilege	956	winupdate.exe
Token: SeSecurityPrivilege	956	winupdate.exe
Token: SeTakeOwnershipPrivilege	956	winupdate.exe
Token: SeLoadDriverPrivilege	956	winupdate.exe
Token: SeSystemProfilePrivilege	956	winupdate.exe
Token: SeSystemtimePrivilege	956	winupdate.exe
Token: SeProfSingleProcessPrivilege	956	winupdate.exe
Token: SeIncBasePriorityPrivilege	956	winupdate.exe
Token: SeCreatePagefilePrivilege	956	winupdate.exe
Token: SeBackupPrivilege	956	winupdate.exe
Token: SeRestorePrivilege	956	winupdate.exe
Token: SeShutdownPrivilege	956	winupdate.exe
Token: SeDebugPrivilege	956	winupdate.exe
Token: SeSystemEnvironmentPrivilege	956	winupdate.exe
Token: SeChangeNotifyPrivilege	956	winupdate.exe
Token: SeRemoteShutdownPrivilege	956	winupdate.exe
Token: SeUndockPrivilege	956	winupdate.exe
Token: SeManageVolumePrivilege	956	winupdate.exe
Token: SeImpersonatePrivilege	956	winupdate.exe
Token: SeCreateGlobalPrivilege	956	winupdate.exe
Token: 33	956	winupdate.exe
Token: 34	956	winupdate.exe
Token: 35	956	winupdate.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.execmd.exe

description	pid	process	target process
PID 1732 wrote to memory of 956	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe	winupdate.exe
PID 1732 wrote to memory of 956	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe	winupdate.exe
PID 1732 wrote to memory of 956	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe	winupdate.exe
PID 1732 wrote to memory of 956	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe	winupdate.exe
PID 1732 wrote to memory of 956	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe	winupdate.exe
PID 1732 wrote to memory of 956	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe	winupdate.exe
PID 1732 wrote to memory of 956	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe	winupdate.exe
PID 1732 wrote to memory of 2024	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe	cmd.exe
PID 1732 wrote to memory of 2024	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe	cmd.exe
PID 1732 wrote to memory of 2024	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe	cmd.exe
PID 1732 wrote to memory of 2024	1732	383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe	cmd.exe
PID 2024 wrote to memory of 900	2024	cmd.exe	PING.EXE
PID 2024 wrote to memory of 900	2024	cmd.exe	PING.EXE
PID 2024 wrote to memory of 900	2024	cmd.exe	PING.EXE
PID 2024 wrote to memory of 900	2024	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe
"C:\Users\Admin\AppData\Local\Temp\383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1732

C:\Windupdt\winupdate.exe
"C:\Windupdt\winupdate.exe"
2⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Loads dropped DLL
- Windows security modification
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:956

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 5
3⤵
- Runs ping.exe
PID:900

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Disabling Security Tools

Modify Registry

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windupdt\winupdate.exe

Filesize
648KB

MD5
1af58b00e3c19a6e3322dc0a0ffa1986

SHA1
d1a72105983af7292db5b13859edd5c82490c5a9

SHA256
383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c

SHA512
ef8b8e64e54cfec7eec3d23b7fc5a7718832c462a35a0ae065d70b1aa5f052e0c9f28259ebc9fcb76bce905609479cf08e4e018c061260ae788f55fd78f754cf

Download Submit
C:\Windupdt\winupdate.exe

Filesize
648KB

MD5
1af58b00e3c19a6e3322dc0a0ffa1986

SHA1
d1a72105983af7292db5b13859edd5c82490c5a9

SHA256
383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c

SHA512
ef8b8e64e54cfec7eec3d23b7fc5a7718832c462a35a0ae065d70b1aa5f052e0c9f28259ebc9fcb76bce905609479cf08e4e018c061260ae788f55fd78f754cf

Download Submit
\Windupdt\winupdate.exe

Filesize
648KB

MD5
1af58b00e3c19a6e3322dc0a0ffa1986

SHA1
d1a72105983af7292db5b13859edd5c82490c5a9

SHA256
383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c

SHA512
ef8b8e64e54cfec7eec3d23b7fc5a7718832c462a35a0ae065d70b1aa5f052e0c9f28259ebc9fcb76bce905609479cf08e4e018c061260ae788f55fd78f754cf

Download Submit
\Windupdt\winupdate.exe

Filesize
648KB

MD5
1af58b00e3c19a6e3322dc0a0ffa1986

SHA1
d1a72105983af7292db5b13859edd5c82490c5a9

SHA256
383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c

SHA512
ef8b8e64e54cfec7eec3d23b7fc5a7718832c462a35a0ae065d70b1aa5f052e0c9f28259ebc9fcb76bce905609479cf08e4e018c061260ae788f55fd78f754cf

Download Submit
\Windupdt\winupdate.exe

Filesize
648KB

MD5
1af58b00e3c19a6e3322dc0a0ffa1986

SHA1
d1a72105983af7292db5b13859edd5c82490c5a9

SHA256
383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c

SHA512
ef8b8e64e54cfec7eec3d23b7fc5a7718832c462a35a0ae065d70b1aa5f052e0c9f28259ebc9fcb76bce905609479cf08e4e018c061260ae788f55fd78f754cf

Download Submit
\Windupdt\winupdate.exe

Filesize
648KB

MD5
1af58b00e3c19a6e3322dc0a0ffa1986

SHA1
d1a72105983af7292db5b13859edd5c82490c5a9

SHA256
383fdf3e8222919c1011273fb3984ed541c620f4248bb54990a8be2a12486d8c

SHA512
ef8b8e64e54cfec7eec3d23b7fc5a7718832c462a35a0ae065d70b1aa5f052e0c9f28259ebc9fcb76bce905609479cf08e4e018c061260ae788f55fd78f754cf

Download Submit
memory/900-64-0x0000000000000000-mapping.dmp

Download
memory/956-56-0x0000000000000000-mapping.dmp

Download
memory/1732-54-0x0000000075771000-0x0000000075773000-memory.dmp

Filesize
8KB

Download
memory/2024-63-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads