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

1156 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
1156	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe

pid	process
1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
1684	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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

1156 msdcsc.exe

pid	process
1156	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeSecurityPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeTakeOwnershipPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeLoadDriverPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeSystemProfilePrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeSystemtimePrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeProfSingleProcessPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeIncBasePriorityPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeCreatePagefilePrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeBackupPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeRestorePrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeShutdownPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeDebugPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeSystemEnvironmentPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeChangeNotifyPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeRemoteShutdownPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeUndockPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeManageVolumePrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeImpersonatePrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeCreateGlobalPrivilege	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: 33	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: 34	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: 35	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
Token: SeIncreaseQuotaPrivilege	1156	msdcsc.exe
Token: SeSecurityPrivilege	1156	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1156	msdcsc.exe
Token: SeLoadDriverPrivilege	1156	msdcsc.exe
Token: SeSystemProfilePrivilege	1156	msdcsc.exe
Token: SeSystemtimePrivilege	1156	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1156	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1156	msdcsc.exe
Token: SeCreatePagefilePrivilege	1156	msdcsc.exe
Token: SeBackupPrivilege	1156	msdcsc.exe
Token: SeRestorePrivilege	1156	msdcsc.exe
Token: SeShutdownPrivilege	1156	msdcsc.exe
Token: SeDebugPrivilege	1156	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1156	msdcsc.exe
Token: SeChangeNotifyPrivilege	1156	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1156	msdcsc.exe
Token: SeUndockPrivilege	1156	msdcsc.exe
Token: SeManageVolumePrivilege	1156	msdcsc.exe
Token: SeImpersonatePrivilege	1156	msdcsc.exe
Token: SeCreateGlobalPrivilege	1156	msdcsc.exe
Token: 33	1156	msdcsc.exe
Token: 34	1156	msdcsc.exe
Token: 35	1156	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1156 msdcsc.exe

pid	process
1156	msdcsc.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1684 wrote to memory of 1484	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 1684 wrote to memory of 1484	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 1684 wrote to memory of 1484	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 1684 wrote to memory of 1484	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 1684 wrote to memory of 952	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 1684 wrote to memory of 952	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 1684 wrote to memory of 952	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 1684 wrote to memory of 952	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	cmd.exe
PID 1484 wrote to memory of 1208	1484	cmd.exe	attrib.exe
PID 952 wrote to memory of 1728	952	cmd.exe	attrib.exe
PID 1484 wrote to memory of 1208	1484	cmd.exe	attrib.exe
PID 952 wrote to memory of 1728	952	cmd.exe	attrib.exe
PID 1484 wrote to memory of 1208	1484	cmd.exe	attrib.exe
PID 952 wrote to memory of 1728	952	cmd.exe	attrib.exe
PID 1484 wrote to memory of 1208	1484	cmd.exe	attrib.exe
PID 952 wrote to memory of 1728	952	cmd.exe	attrib.exe
PID 1684 wrote to memory of 1156	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	msdcsc.exe
PID 1684 wrote to memory of 1156	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	msdcsc.exe
PID 1684 wrote to memory of 1156	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	msdcsc.exe
PID 1684 wrote to memory of 1156	1684	e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe	msdcsc.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe
PID 1156 wrote to memory of 1772	1156	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1728 attrib.exe
1208 attrib.exe

pid	process
1728	attrib.exe
1208	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe
"C:\Users\Admin\AppData\Local\Temp\e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684

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:1484

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9.exe" +s +h
3⤵
- Views/modifies file attributes
PID:1208

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:952

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:1156

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
1⤵
- Views/modifies file attributes
PID:1728

C:\Windows\SysWOW64\notepad.exe
notepad
1⤵
PID:1772

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

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

MD5
d7f711538e044b1db71efad106ed6659

SHA1
c048b33b8e497a9bbc6df0a59080ae1b3ae7d2e7

SHA256
e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9

SHA512
9167e182fbb50578ef2f3337274a2340d86977fe400e00920e21cc002a117a18362d1d65c98a512b67178b53a1e8a128bed04ac15dd99108fb69ecbc5cf3ccf3

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

MD5
d7f711538e044b1db71efad106ed6659

SHA1
c048b33b8e497a9bbc6df0a59080ae1b3ae7d2e7

SHA256
e1f217b1bbd2e69f5234c04c4d4d76e6738faeff250b5dd97ff2700ec190a5b9

SHA512
9167e182fbb50578ef2f3337274a2340d86977fe400e00920e21cc002a117a18362d1d65c98a512b67178b53a1e8a128bed04ac15dd99108fb69ecbc5cf3ccf3

Download Submit
memory/952-56-0x0000000000000000-mapping.dmp

Download
memory/1156-61-0x0000000000000000-mapping.dmp

Download
memory/1208-57-0x0000000000000000-mapping.dmp

Download
memory/1484-55-0x0000000000000000-mapping.dmp

Download
memory/1684-54-0x0000000076431000-0x0000000076433000-memory.dmp

Filesize
8KB

Download
memory/1728-58-0x0000000000000000-mapping.dmp

Download
memory/1772-65-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads