darkcomet | e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9

General

Target

e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Size

690KB
MD5

d7f711538e044b1db71efad106ed6659
SHA1

c048b33b8e497a9bbc6df0a59080ae1b3ae7d2e7
SHA256

e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9
SHA512

9167e182fbb50578ef2f3337274a2340d86977fe400e00920e21cc002a117a18362d1d65c98a512b67178b53a1e8a128bed04ac15dd99108fb69ecbc5cf3ccf3

Score

10^/10

darkcomet all evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

All

C2

:1604

Mutex

DC_MUTEX-APF4CUU

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
fmb76uQCmiRB
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:

e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.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"	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2848 msdcsc.exe
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

pid	process
2848	msdcsc.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "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

Modifies registry class 1 IoCs

Processes:

e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

2848 msdcsc.exe

pid	process
2848	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeSecurityPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeTakeOwnershipPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeLoadDriverPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeSystemProfilePrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeSystemtimePrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeProfSingleProcessPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeIncBasePriorityPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeCreatePagefilePrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeBackupPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeRestorePrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeShutdownPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeDebugPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeSystemEnvironmentPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeChangeNotifyPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeRemoteShutdownPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeUndockPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeManageVolumePrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeImpersonatePrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeCreateGlobalPrivilege	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: 33	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: 34	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: 35	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: 36	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeIncreaseQuotaPrivilege	2848	msdcsc.exe
Token: SeSecurityPrivilege	2848	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2848	msdcsc.exe
Token: SeLoadDriverPrivilege	2848	msdcsc.exe
Token: SeSystemProfilePrivilege	2848	msdcsc.exe
Token: SeSystemtimePrivilege	2848	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2848	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2848	msdcsc.exe
Token: SeCreatePagefilePrivilege	2848	msdcsc.exe
Token: SeBackupPrivilege	2848	msdcsc.exe
Token: SeRestorePrivilege	2848	msdcsc.exe
Token: SeShutdownPrivilege	2848	msdcsc.exe
Token: SeDebugPrivilege	2848	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2848	msdcsc.exe
Token: SeChangeNotifyPrivilege	2848	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2848	msdcsc.exe
Token: SeUndockPrivilege	2848	msdcsc.exe
Token: SeManageVolumePrivilege	2848	msdcsc.exe
Token: SeImpersonatePrivilege	2848	msdcsc.exe
Token: SeCreateGlobalPrivilege	2848	msdcsc.exe
Token: 33	2848	msdcsc.exe
Token: 34	2848	msdcsc.exe
Token: 35	2848	msdcsc.exe
Token: 36	2848	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2848 msdcsc.exe

pid	process
2848	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 2148 wrote to memory of 3368	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 2148 wrote to memory of 3368	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 2148 wrote to memory of 3368	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 2148 wrote to memory of 4668	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 2148 wrote to memory of 4668	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 2148 wrote to memory of 4668	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 3368 wrote to memory of 4876	3368	cmd.exe	attrib.exe
PID 3368 wrote to memory of 4876	3368	cmd.exe	attrib.exe
PID 3368 wrote to memory of 4876	3368	cmd.exe	attrib.exe
PID 4668 wrote to memory of 4864	4668	cmd.exe	attrib.exe
PID 4668 wrote to memory of 4864	4668	cmd.exe	attrib.exe
PID 4668 wrote to memory of 4864	4668	cmd.exe	attrib.exe
PID 2148 wrote to memory of 2848	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	msdcsc.exe
PID 2148 wrote to memory of 2848	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	msdcsc.exe
PID 2148 wrote to memory of 2848	2148	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	msdcsc.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe
PID 2848 wrote to memory of 2616	2848	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

4864 attrib.exe
4876 attrib.exe

pid	process
4864	attrib.exe
4876	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
"C:\Users\Admin\AppData\Local\Temp\e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2148

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:4668

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:4864

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:3368

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 behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2848

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2616

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe" +s +h
1⤵
- Views/modifies file attributes
PID:4876

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
690KB

MD5
d7f711538e044b1db71efad106ed6659

SHA1
c048b33b8e497a9bbc6df0a59080ae1b3ae7d2e7

SHA256
e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9

SHA512
9167e182fbb50578ef2f3337274a2340d86977fe400e00920e21cc002a117a18362d1d65c98a512b67178b53a1e8a128bed04ac15dd99108fb69ecbc5cf3ccf3

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
690KB

MD5
d7f711538e044b1db71efad106ed6659

SHA1
c048b33b8e497a9bbc6df0a59080ae1b3ae7d2e7

SHA256
e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9

SHA512
9167e182fbb50578ef2f3337274a2340d86977fe400e00920e21cc002a117a18362d1d65c98a512b67178b53a1e8a128bed04ac15dd99108fb69ecbc5cf3ccf3

Download Submit
memory/2616-137-0x0000000000000000-mapping.dmp

Download
memory/2848-134-0x0000000000000000-mapping.dmp

Download
memory/3368-130-0x0000000000000000-mapping.dmp

Download
memory/4668-131-0x0000000000000000-mapping.dmp

Download
memory/4864-133-0x0000000000000000-mapping.dmp

Download
memory/4876-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads