darkcomet | 94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686

General

Target

94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Size

873KB
MD5

30579e0d9d850264acc6019518fcd1a8
SHA1

4b978cdfbe709286814040d65b757db967d3897a
SHA256

94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686
SHA512

44a3bdf0c26e727b96a88e9d35616a5b6efabdd228c590fed2107dbdac02cfc47b9722bae805cc3fef863913b0e18b34e02e3d6837cbd9ca9fd84aa08ed7eff3
SSDEEP

12288:2GopSuXh1gducHobZ5TTXraU4RFH4nQFAvQsg1W98a/Xcg5P0wf7:2x7baPF6QFAvSW986j007

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

kelvindrk.no-ip.biz:1008

Mutex

DC_MUTEX-DXAW4U7

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
B7nmveDZ5jn1
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:

94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.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"	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe

Executes dropped EXE 2 IoCs

Processes:

msdcsc.exemsdcsc.exe

pid process

556 msdcsc.exe
1044 msdcsc.exe
Loads dropped DLL 1 IoCs

Processes:

94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe

pid process

1928 94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe

pid	process
556	msdcsc.exe
1044	msdcsc.exe

pid	process
1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exemsdcsc.exe

description	pid	process	target process
PID 1972 set thread context of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 556 set thread context of 1044	556	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: EnumeratesProcesses 2 IoCs

Processes:

94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exemsdcsc.exe

pid process

1972 94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
556 msdcsc.exe

pid	process
1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
556	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exemsdcsc.exemsdcsc.exe

description	pid	process
Token: SeDebugPrivilege	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeIncreaseQuotaPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeSecurityPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeTakeOwnershipPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeLoadDriverPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeSystemProfilePrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeSystemtimePrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeProfSingleProcessPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeIncBasePriorityPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeCreatePagefilePrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeBackupPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeRestorePrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeShutdownPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeDebugPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeSystemEnvironmentPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeChangeNotifyPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeRemoteShutdownPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeUndockPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeManageVolumePrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeImpersonatePrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeCreateGlobalPrivilege	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: 33	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: 34	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: 35	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
Token: SeDebugPrivilege	556	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	1044	msdcsc.exe
Token: SeSecurityPrivilege	1044	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1044	msdcsc.exe
Token: SeLoadDriverPrivilege	1044	msdcsc.exe
Token: SeSystemProfilePrivilege	1044	msdcsc.exe
Token: SeSystemtimePrivilege	1044	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1044	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1044	msdcsc.exe
Token: SeCreatePagefilePrivilege	1044	msdcsc.exe
Token: SeBackupPrivilege	1044	msdcsc.exe
Token: SeRestorePrivilege	1044	msdcsc.exe
Token: SeShutdownPrivilege	1044	msdcsc.exe
Token: SeDebugPrivilege	1044	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1044	msdcsc.exe
Token: SeChangeNotifyPrivilege	1044	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1044	msdcsc.exe
Token: SeUndockPrivilege	1044	msdcsc.exe
Token: SeManageVolumePrivilege	1044	msdcsc.exe
Token: SeImpersonatePrivilege	1044	msdcsc.exe
Token: SeCreateGlobalPrivilege	1044	msdcsc.exe
Token: 33	1044	msdcsc.exe
Token: 34	1044	msdcsc.exe
Token: 35	1044	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1044 msdcsc.exe

pid	process
1044	msdcsc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exemsdcsc.exe

description	pid	process	target process
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1972 wrote to memory of 1928	1972	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
PID 1928 wrote to memory of 556	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	msdcsc.exe
PID 1928 wrote to memory of 556	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	msdcsc.exe
PID 1928 wrote to memory of 556	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	msdcsc.exe
PID 1928 wrote to memory of 556	1928	94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe
PID 556 wrote to memory of 1044	556	msdcsc.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
"C:\Users\Admin\AppData\Local\Temp\94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972

C:\Users\Admin\AppData\Local\Temp\94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe
"C:\Users\Admin\AppData\Local\Temp\94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686.exe"
2⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1928

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:556

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1044

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

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
873KB

MD5
30579e0d9d850264acc6019518fcd1a8

SHA1
4b978cdfbe709286814040d65b757db967d3897a

SHA256
94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686

SHA512
44a3bdf0c26e727b96a88e9d35616a5b6efabdd228c590fed2107dbdac02cfc47b9722bae805cc3fef863913b0e18b34e02e3d6837cbd9ca9fd84aa08ed7eff3

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
873KB

MD5
30579e0d9d850264acc6019518fcd1a8

SHA1
4b978cdfbe709286814040d65b757db967d3897a

SHA256
94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686

SHA512
44a3bdf0c26e727b96a88e9d35616a5b6efabdd228c590fed2107dbdac02cfc47b9722bae805cc3fef863913b0e18b34e02e3d6837cbd9ca9fd84aa08ed7eff3

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
873KB

MD5
30579e0d9d850264acc6019518fcd1a8

SHA1
4b978cdfbe709286814040d65b757db967d3897a

SHA256
94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686

SHA512
44a3bdf0c26e727b96a88e9d35616a5b6efabdd228c590fed2107dbdac02cfc47b9722bae805cc3fef863913b0e18b34e02e3d6837cbd9ca9fd84aa08ed7eff3

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
873KB

MD5
30579e0d9d850264acc6019518fcd1a8

SHA1
4b978cdfbe709286814040d65b757db967d3897a

SHA256
94083535c21ab05d2f041cf7b99da107adb38c8a871163305f4027ebf389c686

SHA512
44a3bdf0c26e727b96a88e9d35616a5b6efabdd228c590fed2107dbdac02cfc47b9722bae805cc3fef863913b0e18b34e02e3d6837cbd9ca9fd84aa08ed7eff3

Download Submit
memory/556-102-0x0000000073D10000-0x00000000742BB000-memory.dmp

Filesize
5.7MB

Download
memory/556-80-0x0000000000000000-mapping.dmp

Download
memory/556-104-0x00000000008C5000-0x00000000008D6000-memory.dmp

Filesize
68KB

Download
memory/1044-106-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1044-108-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1044-99-0x000000000048F888-mapping.dmp

Download
memory/1928-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1928-78-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1928-72-0x000000000048F888-mapping.dmp

Download
memory/1928-73-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1928-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1928-67-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1928-77-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1928-71-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1928-66-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1928-107-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1928-61-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1928-59-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1928-57-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1928-56-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1972-65-0x0000000002225000-0x0000000002236000-memory.dmp

Filesize
68KB

Download
memory/1972-76-0x0000000002225000-0x0000000002236000-memory.dmp

Filesize
68KB

Download
memory/1972-75-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/1972-54-0x0000000075981000-0x0000000075983000-memory.dmp

Filesize
8KB

Download
memory/1972-55-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads