darkcomet | 78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398

General

Target

78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe
Size

1.5MB
MD5

edb8b19beede18b21ec7ebc847271fd1
SHA1

8ec1c660059fc6a0571782fe17ed30787055b278
SHA256

78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398
SHA512

88197dc5f5480378481f0fc8165c051dc87148176fcae89a9367eaf004506d82755596f89c0d6fecbea5005301514caf507c1145edd9b657192258d10804e5c3

Score

10^/10

darkcomet sazan persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

ya123131.duckdns.org:1604

Mutex

DC_MUTEX-LYRTGU5

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
m1B9veJm8Qlx
install
true
offline_keylogger
true
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:

vbc.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"	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exevbc.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft@Software = "C:\\Users\\Admin\\AppData\\Local\\Temp\\78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe"	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe

description pid process target process

PID 804 set thread context of 756 804 78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe vbc.exe

description	pid	process	target process
PID 804 set thread context of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

vbc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	756	vbc.exe
Token: SeSecurityPrivilege	756	vbc.exe
Token: SeTakeOwnershipPrivilege	756	vbc.exe
Token: SeLoadDriverPrivilege	756	vbc.exe
Token: SeSystemProfilePrivilege	756	vbc.exe
Token: SeSystemtimePrivilege	756	vbc.exe
Token: SeProfSingleProcessPrivilege	756	vbc.exe
Token: SeIncBasePriorityPrivilege	756	vbc.exe
Token: SeCreatePagefilePrivilege	756	vbc.exe
Token: SeBackupPrivilege	756	vbc.exe
Token: SeRestorePrivilege	756	vbc.exe
Token: SeShutdownPrivilege	756	vbc.exe
Token: SeDebugPrivilege	756	vbc.exe
Token: SeSystemEnvironmentPrivilege	756	vbc.exe
Token: SeChangeNotifyPrivilege	756	vbc.exe
Token: SeRemoteShutdownPrivilege	756	vbc.exe
Token: SeUndockPrivilege	756	vbc.exe
Token: SeManageVolumePrivilege	756	vbc.exe
Token: SeImpersonatePrivilege	756	vbc.exe
Token: SeCreateGlobalPrivilege	756	vbc.exe
Token: 33	756	vbc.exe
Token: 34	756	vbc.exe
Token: 35	756	vbc.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe

pid	process
804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe
804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe
804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe

pid	process
804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe
804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe
804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe

description	pid	process	target process
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe
PID 804 wrote to memory of 756	804	78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe
"C:\Users\Admin\AppData\Local\Temp\78b1751491463b0d579eda079654d1dfb9296b98e2867b4fdc765256e5962398.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:804

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
2⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:756

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

Scripting

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/756-0-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/756-1-0x000000000048F888-mapping.dmp

Download
memory/756-2-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads