darkcomet | 8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc

General

Target

8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Size

1.4MB
MD5

a537053d61af5278eea232eeb3ccc02f
SHA1

d5159b8e11babcf46a844521d2a651b79c4ba8f1
SHA256

8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc
SHA512

a073993c43ebf94638e64e248a06ff02fbae9d2bcea5343a2a9ce3f91280c322dd171abeabd5d72f8972259a60f4c8fbfbe0a061e82c375227696c4db7ff98da

Score

10^/10

darkcomet trade persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Trade

C2

gringomonster.no-ip.org:81

gringomonster.no-ip.org:82

gringomonster.no-ip.org:2000

gringomonster.no-ip.org:3000

gringomonster.no-ip.org:4000

gringomonster.no-ip.org:5000

Mutex

DC_MUTEX-5RK5HC8

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
R47hPfLks2Sb
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:

8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe

Executes dropped EXE 2 IoCs

Processes:

msdcsc.exemsdcsc.exe

pid process

1512 msdcsc.exe
344 msdcsc.exe
Loads dropped DLL 1 IoCs

Processes:

8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe

pid process

316 8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe

pid	process
1512	msdcsc.exe
344	msdcsc.exe

pid	process
316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Drops file in System32 directory 3 IoCs

Processes:

8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe

description	ioc	process
File created	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exemsdcsc.exe

description	pid	process	target process
PID 1124 set thread context of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 1512 set thread context of 344	1512	msdcsc.exe	msdcsc.exe

autoit_exe 4 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
\Windows\SysWOW64\MSDCSC\msdcsc.exe	autoit_exe
C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	autoit_exe
C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	autoit_exe
C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	autoit_exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeSecurityPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeTakeOwnershipPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeLoadDriverPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeSystemProfilePrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeSystemtimePrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeProfSingleProcessPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeIncBasePriorityPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeCreatePagefilePrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeBackupPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeRestorePrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeShutdownPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeDebugPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeSystemEnvironmentPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeChangeNotifyPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeRemoteShutdownPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeUndockPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeManageVolumePrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeImpersonatePrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeCreateGlobalPrivilege	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: 33	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: 34	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: 35	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
Token: SeIncreaseQuotaPrivilege	344	msdcsc.exe
Token: SeSecurityPrivilege	344	msdcsc.exe
Token: SeTakeOwnershipPrivilege	344	msdcsc.exe
Token: SeLoadDriverPrivilege	344	msdcsc.exe
Token: SeSystemProfilePrivilege	344	msdcsc.exe
Token: SeSystemtimePrivilege	344	msdcsc.exe
Token: SeProfSingleProcessPrivilege	344	msdcsc.exe
Token: SeIncBasePriorityPrivilege	344	msdcsc.exe
Token: SeCreatePagefilePrivilege	344	msdcsc.exe
Token: SeBackupPrivilege	344	msdcsc.exe
Token: SeRestorePrivilege	344	msdcsc.exe
Token: SeShutdownPrivilege	344	msdcsc.exe
Token: SeDebugPrivilege	344	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	344	msdcsc.exe
Token: SeChangeNotifyPrivilege	344	msdcsc.exe
Token: SeRemoteShutdownPrivilege	344	msdcsc.exe
Token: SeUndockPrivilege	344	msdcsc.exe
Token: SeManageVolumePrivilege	344	msdcsc.exe
Token: SeImpersonatePrivilege	344	msdcsc.exe
Token: SeCreateGlobalPrivilege	344	msdcsc.exe
Token: 33	344	msdcsc.exe
Token: 34	344	msdcsc.exe
Token: 35	344	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

344 msdcsc.exe

pid	process
344	msdcsc.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exemsdcsc.exe

description	pid	process	target process
PID 1124 wrote to memory of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 1124 wrote to memory of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 1124 wrote to memory of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 1124 wrote to memory of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 1124 wrote to memory of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 1124 wrote to memory of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 1124 wrote to memory of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 1124 wrote to memory of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 1124 wrote to memory of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 1124 wrote to memory of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 1124 wrote to memory of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 1124 wrote to memory of 316	1124	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
PID 316 wrote to memory of 1512	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	msdcsc.exe
PID 316 wrote to memory of 1512	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	msdcsc.exe
PID 316 wrote to memory of 1512	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	msdcsc.exe
PID 316 wrote to memory of 1512	316	8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe	msdcsc.exe
PID 1512 wrote to memory of 344	1512	msdcsc.exe	msdcsc.exe
PID 1512 wrote to memory of 344	1512	msdcsc.exe	msdcsc.exe
PID 1512 wrote to memory of 344	1512	msdcsc.exe	msdcsc.exe
PID 1512 wrote to memory of 344	1512	msdcsc.exe	msdcsc.exe
PID 1512 wrote to memory of 344	1512	msdcsc.exe	msdcsc.exe
PID 1512 wrote to memory of 344	1512	msdcsc.exe	msdcsc.exe
PID 1512 wrote to memory of 344	1512	msdcsc.exe	msdcsc.exe
PID 1512 wrote to memory of 344	1512	msdcsc.exe	msdcsc.exe
PID 1512 wrote to memory of 344	1512	msdcsc.exe	msdcsc.exe
PID 1512 wrote to memory of 344	1512	msdcsc.exe	msdcsc.exe
PID 1512 wrote to memory of 344	1512	msdcsc.exe	msdcsc.exe
PID 1512 wrote to memory of 344	1512	msdcsc.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
"C:\Users\Admin\AppData\Local\Temp\8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1124

C:\Users\Admin\AppData\Local\Temp\8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe
"C:\Users\Admin\AppData\Local\Temp\8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc.exe"
2⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:316

C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
"C:\Windows\system32\MSDCSC\msdcsc.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1512

C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
"C:\Windows\SysWOW64\MSDCSC\msdcsc.exe"
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:344

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
MD5
a537053d61af5278eea232eeb3ccc02f

SHA1
d5159b8e11babcf46a844521d2a651b79c4ba8f1

SHA256
8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc

SHA512
a073993c43ebf94638e64e248a06ff02fbae9d2bcea5343a2a9ce3f91280c322dd171abeabd5d72f8972259a60f4c8fbfbe0a061e82c375227696c4db7ff98da

Download Submit
C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
MD5
a537053d61af5278eea232eeb3ccc02f

SHA1
d5159b8e11babcf46a844521d2a651b79c4ba8f1

SHA256
8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc

SHA512
a073993c43ebf94638e64e248a06ff02fbae9d2bcea5343a2a9ce3f91280c322dd171abeabd5d72f8972259a60f4c8fbfbe0a061e82c375227696c4db7ff98da

Download Submit
C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
MD5
a537053d61af5278eea232eeb3ccc02f

SHA1
d5159b8e11babcf46a844521d2a651b79c4ba8f1

SHA256
8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc

SHA512
a073993c43ebf94638e64e248a06ff02fbae9d2bcea5343a2a9ce3f91280c322dd171abeabd5d72f8972259a60f4c8fbfbe0a061e82c375227696c4db7ff98da

Download Submit
\Windows\SysWOW64\MSDCSC\msdcsc.exe
MD5
a537053d61af5278eea232eeb3ccc02f

SHA1
d5159b8e11babcf46a844521d2a651b79c4ba8f1

SHA256
8a72a55d126b69bda2f37fd88050aeed02d97733f6777759b542db8a442435bc

SHA512
a073993c43ebf94638e64e248a06ff02fbae9d2bcea5343a2a9ce3f91280c322dd171abeabd5d72f8972259a60f4c8fbfbe0a061e82c375227696c4db7ff98da

Download Submit
memory/316-0-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/316-1-0x000000000048F888-mapping.dmp

Download
memory/316-2-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/344-8-0x000000000048F888-mapping.dmp

Download
memory/344-10-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1512-4-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads