darkcomet | 7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744

General

Target

7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Size

440KB
MD5

a56c8f7c8cc94966093d7ea2b3241f12
SHA1

e12bdd5b96295d73e2bd14b63d5be1dffe485796
SHA256

7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744
SHA512

5f343bd670d633f403d561312de638a4eac63bb937b86557c39b56f89a86ac94382319a36ac9bff5e9a4401e2f91950f4129e945e51668cd8937ec4a7c8849a6

Score

10^/10

darkcomet garry evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

garry

C2

212.83.162.240:4449

Mutex

DC_MUTEX-HVQYYV2

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
qP9qMy51lYCf
install
true
offline_keylogger
true
persistence
true
reg_key
SQLBrowser

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:

7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.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"	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

980 msdcsc.exe
Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1220 attrib.exe

pid	process
980	msdcsc.exe

pid	process
1220	attrib.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/1064-56-0x0000000000400000-0x0000000000B9C000-memory.dmp	upx
behavioral1/memory/980-68-0x0000000000400000-0x0000000000B9C000-memory.dmp	upx
behavioral1/memory/1064-73-0x0000000000400000-0x0000000000B9C000-memory.dmp	upx
behavioral1/memory/980-74-0x0000000000400000-0x0000000000B9C000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

2032 notepad.exe

pid	process
2032	notepad.exe

Loads dropped DLL 2 IoCs

Processes:

7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe

pid	process
1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-335065374-4263250628-1829373619-1000\Software\Microsoft\Windows\CurrentVersion\Run\SQLBrowser = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-335065374-4263250628-1829373619-1000\Software\Microsoft\Windows\CurrentVersion\Run\SQLBrowser = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.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:

7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeSecurityPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeTakeOwnershipPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeLoadDriverPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeSystemProfilePrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeSystemtimePrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeProfSingleProcessPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeIncBasePriorityPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeCreatePagefilePrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeBackupPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeRestorePrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeShutdownPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeDebugPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeSystemEnvironmentPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeChangeNotifyPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeRemoteShutdownPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeUndockPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeManageVolumePrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeImpersonatePrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeCreateGlobalPrivilege	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: 33	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: 34	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: 35	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
Token: SeIncreaseQuotaPrivilege	980	msdcsc.exe
Token: SeSecurityPrivilege	980	msdcsc.exe
Token: SeTakeOwnershipPrivilege	980	msdcsc.exe
Token: SeLoadDriverPrivilege	980	msdcsc.exe
Token: SeSystemProfilePrivilege	980	msdcsc.exe
Token: SeSystemtimePrivilege	980	msdcsc.exe
Token: SeProfSingleProcessPrivilege	980	msdcsc.exe
Token: SeIncBasePriorityPrivilege	980	msdcsc.exe
Token: SeCreatePagefilePrivilege	980	msdcsc.exe
Token: SeBackupPrivilege	980	msdcsc.exe
Token: SeRestorePrivilege	980	msdcsc.exe
Token: SeShutdownPrivilege	980	msdcsc.exe
Token: SeDebugPrivilege	980	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	980	msdcsc.exe
Token: SeChangeNotifyPrivilege	980	msdcsc.exe
Token: SeRemoteShutdownPrivilege	980	msdcsc.exe
Token: SeUndockPrivilege	980	msdcsc.exe
Token: SeManageVolumePrivilege	980	msdcsc.exe
Token: SeImpersonatePrivilege	980	msdcsc.exe
Token: SeCreateGlobalPrivilege	980	msdcsc.exe
Token: 33	980	msdcsc.exe
Token: 34	980	msdcsc.exe
Token: 35	980	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

980 msdcsc.exe

pid	process
980	msdcsc.exe

Suspicious use of WriteProcessMemory 53 IoCs

Processes:

7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1064 wrote to memory of 1740	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	cmd.exe
PID 1064 wrote to memory of 1740	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	cmd.exe
PID 1064 wrote to memory of 1740	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	cmd.exe
PID 1064 wrote to memory of 1740	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	cmd.exe
PID 1740 wrote to memory of 1220	1740	cmd.exe	attrib.exe
PID 1740 wrote to memory of 1220	1740	cmd.exe	attrib.exe
PID 1740 wrote to memory of 1220	1740	cmd.exe	attrib.exe
PID 1740 wrote to memory of 1220	1740	cmd.exe	attrib.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 2032	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	notepad.exe
PID 1064 wrote to memory of 980	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	msdcsc.exe
PID 1064 wrote to memory of 980	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	msdcsc.exe
PID 1064 wrote to memory of 980	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	msdcsc.exe
PID 1064 wrote to memory of 980	1064	7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe	msdcsc.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe
PID 980 wrote to memory of 1724	980	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1220 attrib.exe

pid	process
1220	attrib.exe

C:\Users\Admin\AppData\Local\Temp\7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe
"C:\Users\Admin\AppData\Local\Temp\7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1064

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1740

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1220

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:2032

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:980

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1724

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Hidden Files and Directories

2

T1158

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
440KB

MD5
a56c8f7c8cc94966093d7ea2b3241f12

SHA1
e12bdd5b96295d73e2bd14b63d5be1dffe485796

SHA256
7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744

SHA512
5f343bd670d633f403d561312de638a4eac63bb937b86557c39b56f89a86ac94382319a36ac9bff5e9a4401e2f91950f4129e945e51668cd8937ec4a7c8849a6

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
440KB

MD5
a56c8f7c8cc94966093d7ea2b3241f12

SHA1
e12bdd5b96295d73e2bd14b63d5be1dffe485796

SHA256
7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744

SHA512
5f343bd670d633f403d561312de638a4eac63bb937b86557c39b56f89a86ac94382319a36ac9bff5e9a4401e2f91950f4129e945e51668cd8937ec4a7c8849a6

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
440KB

MD5
a56c8f7c8cc94966093d7ea2b3241f12

SHA1
e12bdd5b96295d73e2bd14b63d5be1dffe485796

SHA256
7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744

SHA512
5f343bd670d633f403d561312de638a4eac63bb937b86557c39b56f89a86ac94382319a36ac9bff5e9a4401e2f91950f4129e945e51668cd8937ec4a7c8849a6

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
440KB

MD5
a56c8f7c8cc94966093d7ea2b3241f12

SHA1
e12bdd5b96295d73e2bd14b63d5be1dffe485796

SHA256
7925fb4943617c8bf2740c0d4030243a70d5461d6069ed136c7a0360c9545744

SHA512
5f343bd670d633f403d561312de638a4eac63bb937b86557c39b56f89a86ac94382319a36ac9bff5e9a4401e2f91950f4129e945e51668cd8937ec4a7c8849a6

Download Submit
memory/980-74-0x0000000000400000-0x0000000000B9C000-memory.dmp

Filesize
7.6MB

Download
memory/980-63-0x0000000000000000-mapping.dmp

Download
memory/980-67-0x000000000026E000-0x00000000002AE000-memory.dmp

Filesize
256KB

Download
memory/980-68-0x0000000000400000-0x0000000000B9C000-memory.dmp

Filesize
7.6MB

Download
memory/1064-73-0x0000000000400000-0x0000000000B9C000-memory.dmp

Filesize
7.6MB

Download
memory/1064-54-0x00000000760E1000-0x00000000760E3000-memory.dmp

Filesize
8KB

Download
memory/1064-56-0x0000000000400000-0x0000000000B9C000-memory.dmp

Filesize
7.6MB

Download
memory/1064-55-0x0000000000D6E000-0x0000000000DAE000-memory.dmp

Filesize
256KB

Download
memory/1064-66-0x0000000000D6E000-0x0000000000DAE000-memory.dmp

Filesize
256KB

Download
memory/1064-72-0x0000000000D6E000-0x0000000000DAE000-memory.dmp

Filesize
256KB

Download
memory/1220-58-0x0000000000000000-mapping.dmp

Download
memory/1724-70-0x0000000000000000-mapping.dmp

Download
memory/1740-57-0x0000000000000000-mapping.dmp

Download
memory/2032-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads