darkcomet | b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b

General

Target

b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b.exe
Size

476KB
MD5

b0196d39c93d411d1c26d053464e9063
SHA1

9468b91d627458e62cafdc4319fa673a5140f93c
SHA256

b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b
SHA512

fa49fdc90c924c2078ee210a6dc6b5c139462f8b76b94a7a998a73200a0c618d92f921dea6b7574ffcd0a583c01166deebb7acf474fd33de76cfa758e7aeeb29

Score

10^/10

darkcomet �킽��persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

�킽��

C2

darkanony0501.no-ip.biz:1604

Mutex

DC_MUTEX-RUSU0K2

Attributes

gencode
Jv5i6qhD7WCB
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Executes dropped EXE 1 IoCs

Processes:

csrss.exe

pid process

1784 csrss.exe

pid	process
1784	csrss.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

csrss.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	csrss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\18.exe = "C:\\Users\\Admin\\AppData\\RoamingMicrosoft\\System\\Services\\18.exe"	csrss.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	csrss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\18.exe = "C:\\Users\\Admin\\AppData\\RoamingMicrosoft\\System\\Services\\18.exe"	csrss.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

csrss.exe

description pid process target process

PID 1784 set thread context of 1696 1784 csrss.exe cvtres.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 1784 set thread context of 1696	1784	csrss.exe	cvtres.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b.execsrss.exe

pid	process
1616	b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b.exe
1784	csrss.exe
1784	csrss.exe
1784	csrss.exe
1784	csrss.exe
1784	csrss.exe
1784	csrss.exe
1784	csrss.exe
1784	csrss.exe
1784	csrss.exe
1784	csrss.exe
1784	csrss.exe
1784	csrss.exe
1784	csrss.exe

Suspicious use of AdjustPrivilegeToken 26 IoCs

Processes:

b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b.execsrss.execvtres.exe

description	pid	process
Token: SeDebugPrivilege	1616	b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b.exe
Token: SeDebugPrivilege	1784	csrss.exe
Token: SeIncreaseQuotaPrivilege	1696	cvtres.exe
Token: SeSecurityPrivilege	1696	cvtres.exe
Token: SeTakeOwnershipPrivilege	1696	cvtres.exe
Token: SeLoadDriverPrivilege	1696	cvtres.exe
Token: SeSystemProfilePrivilege	1696	cvtres.exe
Token: SeSystemtimePrivilege	1696	cvtres.exe
Token: SeProfSingleProcessPrivilege	1696	cvtres.exe
Token: SeIncBasePriorityPrivilege	1696	cvtres.exe
Token: SeCreatePagefilePrivilege	1696	cvtres.exe
Token: SeBackupPrivilege	1696	cvtres.exe
Token: SeRestorePrivilege	1696	cvtres.exe
Token: SeShutdownPrivilege	1696	cvtres.exe
Token: SeDebugPrivilege	1696	cvtres.exe
Token: SeSystemEnvironmentPrivilege	1696	cvtres.exe
Token: SeChangeNotifyPrivilege	1696	cvtres.exe
Token: SeRemoteShutdownPrivilege	1696	cvtres.exe
Token: SeUndockPrivilege	1696	cvtres.exe
Token: SeManageVolumePrivilege	1696	cvtres.exe
Token: SeImpersonatePrivilege	1696	cvtres.exe
Token: SeCreateGlobalPrivilege	1696	cvtres.exe
Token: 33	1696	cvtres.exe
Token: 34	1696	cvtres.exe
Token: 35	1696	cvtres.exe
Token: 36	1696	cvtres.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

cvtres.exe

pid process

1696 cvtres.exe

pid	process
1696	cvtres.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b.execsrss.exe

description	pid	process	target process
PID 1616 wrote to memory of 1784	1616	b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b.exe	csrss.exe
PID 1616 wrote to memory of 1784	1616	b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b.exe	csrss.exe
PID 1616 wrote to memory of 1784	1616	b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b.exe	csrss.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe
PID 1784 wrote to memory of 1696	1784	csrss.exe	cvtres.exe

C:\Users\Admin\AppData\Local\Temp\b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b.exe
"C:\Users\Admin\AppData\Local\Temp\b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1616

C:\Users\Admin\AppData\Roaming\csrss.exe
"C:\Users\Admin\AppData\Roaming\csrss.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1784

C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
3⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1696

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\csrss.exe
MD5
b0196d39c93d411d1c26d053464e9063

SHA1
9468b91d627458e62cafdc4319fa673a5140f93c

SHA256
b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b

SHA512
fa49fdc90c924c2078ee210a6dc6b5c139462f8b76b94a7a998a73200a0c618d92f921dea6b7574ffcd0a583c01166deebb7acf474fd33de76cfa758e7aeeb29

Download Submit
C:\Users\Admin\AppData\Roaming\csrss.exe
MD5
b0196d39c93d411d1c26d053464e9063

SHA1
9468b91d627458e62cafdc4319fa673a5140f93c

SHA256
b54347c754b7095d0a38c7180eaa71e50c4431b7c721f7791483babb2610d17b

SHA512
fa49fdc90c924c2078ee210a6dc6b5c139462f8b76b94a7a998a73200a0c618d92f921dea6b7574ffcd0a583c01166deebb7acf474fd33de76cfa758e7aeeb29

Download Submit
memory/1696-3-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1696-4-0x000000000048F888-mapping.dmp

Download
memory/1696-5-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1784-0-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads