darkcomet | 89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710

General

Target

89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Size

235KB
MD5

c59db4ec885ca9531c44c6a2efc30d6b
SHA1

ba38b0c7a46992d2ae0540a9bc2e89dacd31b834
SHA256

89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710
SHA512

9ca82da3e8ec092b0beec4ff5be0d21c7046f0c6a8e24ea3524258242fd9f2e0db4988b1ee742d1428aca29b3e94812829bc1f7530d8ad9b72a84aa6a38800a4

Score

10^/10

darkcomet evasion persistence rat trojan

Malware Config

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:

89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe

Disables RegEdit via registry modification
evasion
Disables Task Manager via registry modification
evasion
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1252 msdcsc.exe
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158
Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

2008 notepad.exe

pid	process
1252	msdcsc.exe

pid	process
2008	notepad.exe

Loads dropped DLL 2 IoCs

Processes:

89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe

pid	process
1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\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

1252 msdcsc.exe

pid	process
1252	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeSecurityPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeTakeOwnershipPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeLoadDriverPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeSystemProfilePrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeSystemtimePrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeProfSingleProcessPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeIncBasePriorityPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeCreatePagefilePrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeBackupPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeRestorePrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeShutdownPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeDebugPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeSystemEnvironmentPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeChangeNotifyPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeRemoteShutdownPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeUndockPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeManageVolumePrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeImpersonatePrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeCreateGlobalPrivilege	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: 33	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: 34	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: 35	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
Token: SeIncreaseQuotaPrivilege	1252	msdcsc.exe
Token: SeSecurityPrivilege	1252	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1252	msdcsc.exe
Token: SeLoadDriverPrivilege	1252	msdcsc.exe
Token: SeSystemProfilePrivilege	1252	msdcsc.exe
Token: SeSystemtimePrivilege	1252	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1252	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1252	msdcsc.exe
Token: SeCreatePagefilePrivilege	1252	msdcsc.exe
Token: SeBackupPrivilege	1252	msdcsc.exe
Token: SeRestorePrivilege	1252	msdcsc.exe
Token: SeShutdownPrivilege	1252	msdcsc.exe
Token: SeDebugPrivilege	1252	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1252	msdcsc.exe
Token: SeChangeNotifyPrivilege	1252	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1252	msdcsc.exe
Token: SeUndockPrivilege	1252	msdcsc.exe
Token: SeManageVolumePrivilege	1252	msdcsc.exe
Token: SeImpersonatePrivilege	1252	msdcsc.exe
Token: SeCreateGlobalPrivilege	1252	msdcsc.exe
Token: 33	1252	msdcsc.exe
Token: 34	1252	msdcsc.exe
Token: 35	1252	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1252 msdcsc.exe

pid	process
1252	msdcsc.exe

Suspicious use of WriteProcessMemory 61 IoCs

Processes:

89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1708 wrote to memory of 1552	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	cmd.exe
PID 1708 wrote to memory of 1552	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	cmd.exe
PID 1708 wrote to memory of 1552	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	cmd.exe
PID 1708 wrote to memory of 1552	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	cmd.exe
PID 1708 wrote to memory of 2016	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	cmd.exe
PID 1708 wrote to memory of 2016	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	cmd.exe
PID 1708 wrote to memory of 2016	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	cmd.exe
PID 1708 wrote to memory of 2016	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	cmd.exe
PID 2016 wrote to memory of 1852	2016	cmd.exe	attrib.exe
PID 2016 wrote to memory of 1852	2016	cmd.exe	attrib.exe
PID 2016 wrote to memory of 1852	2016	cmd.exe	attrib.exe
PID 2016 wrote to memory of 1852	2016	cmd.exe	attrib.exe
PID 1552 wrote to memory of 2012	1552	cmd.exe	attrib.exe
PID 1552 wrote to memory of 2012	1552	cmd.exe	attrib.exe
PID 1552 wrote to memory of 2012	1552	cmd.exe	attrib.exe
PID 1552 wrote to memory of 2012	1552	cmd.exe	attrib.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 2008	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	notepad.exe
PID 1708 wrote to memory of 1252	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	msdcsc.exe
PID 1708 wrote to memory of 1252	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	msdcsc.exe
PID 1708 wrote to memory of 1252	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	msdcsc.exe
PID 1708 wrote to memory of 1252	1708	89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe	msdcsc.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe
PID 1252 wrote to memory of 560	1252	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

2012 attrib.exe
1852 attrib.exe

pid	process
2012	attrib.exe
1852	attrib.exe

C:\Users\Admin\AppData\Local\Temp\89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe
"C:\Users\Admin\AppData\Local\Temp\89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1708

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1552

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710.exe" +s +h
3⤵
- Views/modifies file attributes
PID:2012

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:2016

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:1852

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:2008

C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Roaming\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:1252

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:560

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\AppData\Roaming\MSDCSC\msdcsc.exe
Filesize
235KB

MD5
c59db4ec885ca9531c44c6a2efc30d6b

SHA1
ba38b0c7a46992d2ae0540a9bc2e89dacd31b834

SHA256
89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710

SHA512
9ca82da3e8ec092b0beec4ff5be0d21c7046f0c6a8e24ea3524258242fd9f2e0db4988b1ee742d1428aca29b3e94812829bc1f7530d8ad9b72a84aa6a38800a4

Download Submit
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
Filesize
235KB

MD5
c59db4ec885ca9531c44c6a2efc30d6b

SHA1
ba38b0c7a46992d2ae0540a9bc2e89dacd31b834

SHA256
89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710

SHA512
9ca82da3e8ec092b0beec4ff5be0d21c7046f0c6a8e24ea3524258242fd9f2e0db4988b1ee742d1428aca29b3e94812829bc1f7530d8ad9b72a84aa6a38800a4

Download Submit
\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
Filesize
235KB

MD5
c59db4ec885ca9531c44c6a2efc30d6b

SHA1
ba38b0c7a46992d2ae0540a9bc2e89dacd31b834

SHA256
89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710

SHA512
9ca82da3e8ec092b0beec4ff5be0d21c7046f0c6a8e24ea3524258242fd9f2e0db4988b1ee742d1428aca29b3e94812829bc1f7530d8ad9b72a84aa6a38800a4

Download Submit
\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
Filesize
235KB

MD5
c59db4ec885ca9531c44c6a2efc30d6b

SHA1
ba38b0c7a46992d2ae0540a9bc2e89dacd31b834

SHA256
89d15a3ee44dbbd97956a37f4434c5f8e67a1684655b48b2f51375af7ad3e710

SHA512
9ca82da3e8ec092b0beec4ff5be0d21c7046f0c6a8e24ea3524258242fd9f2e0db4988b1ee742d1428aca29b3e94812829bc1f7530d8ad9b72a84aa6a38800a4

Download Submit
memory/560-67-0x0000000000000000-mapping.dmp

Download
memory/1252-63-0x0000000000000000-mapping.dmp

Download
memory/1552-55-0x0000000000000000-mapping.dmp

Download
memory/1708-54-0x00000000758D1000-0x00000000758D3000-memory.dmp

Filesize
8KB

Download
memory/1852-57-0x0000000000000000-mapping.dmp

Download
memory/2008-59-0x0000000000000000-mapping.dmp

Download
memory/2012-58-0x0000000000000000-mapping.dmp

Download
memory/2016-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads