darkcomet | 2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

General

Target

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Size

464KB
MD5

455a2fad3532faddf2835a8022988081
SHA1

8d5d184f381a175fff723458fda8999bde0d9438
SHA256

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7
SHA512

e6559c5076ec9d4ccdff2926fa5161b398c462457c6242cd079dfeecc263bc7d1d0b319397aa0d2f6a10579966aa5b020bccd1dc48bf2335c6b266268113cb2f
SSDEEP

6144:f2+6gLCdeFBHGz1iRkHDQA9v+bxcawGTZuUG6CAzQIQn:hadeFdK1iSjQQ2cawQkUG63M

Score

10^/10

darkcomet guest16 evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

212.253.69.142:81

Mutex

DC_MUTEX-TVELAZ0

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
j9iS5ANHsKQh
install
true
offline_keylogger
true
persistence
false
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:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.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"	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Modify Existing Service
T1031

Processes:

msdcsc.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" msdcsc.exe
Windows security bypass 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

msdcsc.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" msdcsc.exe
Executes dropped EXE 2 IoCs

Processes:

msdcsc.exemsdcsc.exe

pid process

664 msdcsc.exe
1496 msdcsc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	msdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

pid	process
664	msdcsc.exe
1496	msdcsc.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1216-57-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1216-59-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1216-60-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1216-62-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1216-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1216-65-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1216-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1496-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1496-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Loads dropped DLL 2 IoCs

Processes:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe

pid	process
1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe

Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

msdcsc.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" msdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exemsdcsc.exe

description	pid	process	target process
PID 1700 set thread context of 1216	1700	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 664 set thread context of 1496	664	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:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeSecurityPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeTakeOwnershipPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeLoadDriverPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeSystemProfilePrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeSystemtimePrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeProfSingleProcessPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeIncBasePriorityPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeCreatePagefilePrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeBackupPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeRestorePrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeShutdownPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeDebugPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeSystemEnvironmentPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeChangeNotifyPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeRemoteShutdownPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeUndockPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeManageVolumePrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeImpersonatePrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeCreateGlobalPrivilege	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: 33	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: 34	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: 35	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
Token: SeIncreaseQuotaPrivilege	1496	msdcsc.exe
Token: SeSecurityPrivilege	1496	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1496	msdcsc.exe
Token: SeLoadDriverPrivilege	1496	msdcsc.exe
Token: SeSystemProfilePrivilege	1496	msdcsc.exe
Token: SeSystemtimePrivilege	1496	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1496	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1496	msdcsc.exe
Token: SeCreatePagefilePrivilege	1496	msdcsc.exe
Token: SeBackupPrivilege	1496	msdcsc.exe
Token: SeRestorePrivilege	1496	msdcsc.exe
Token: SeShutdownPrivilege	1496	msdcsc.exe
Token: SeDebugPrivilege	1496	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1496	msdcsc.exe
Token: SeChangeNotifyPrivilege	1496	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1496	msdcsc.exe
Token: SeUndockPrivilege	1496	msdcsc.exe
Token: SeManageVolumePrivilege	1496	msdcsc.exe
Token: SeImpersonatePrivilege	1496	msdcsc.exe
Token: SeCreateGlobalPrivilege	1496	msdcsc.exe
Token: 33	1496	msdcsc.exe
Token: 34	1496	msdcsc.exe
Token: 35	1496	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exemsdcsc.exemsdcsc.exe

pid process

1700 2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
664 msdcsc.exe
1496 msdcsc.exe

pid	process
1700	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
664	msdcsc.exe
1496	msdcsc.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exemsdcsc.exe

description	pid	process	target process
PID 1700 wrote to memory of 1216	1700	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 1700 wrote to memory of 1216	1700	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 1700 wrote to memory of 1216	1700	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 1700 wrote to memory of 1216	1700	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 1700 wrote to memory of 1216	1700	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 1700 wrote to memory of 1216	1700	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 1700 wrote to memory of 1216	1700	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 1700 wrote to memory of 1216	1700	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
PID 1216 wrote to memory of 664	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	msdcsc.exe
PID 1216 wrote to memory of 664	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	msdcsc.exe
PID 1216 wrote to memory of 664	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	msdcsc.exe
PID 1216 wrote to memory of 664	1216	2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe	msdcsc.exe
PID 664 wrote to memory of 1496	664	msdcsc.exe	msdcsc.exe
PID 664 wrote to memory of 1496	664	msdcsc.exe	msdcsc.exe
PID 664 wrote to memory of 1496	664	msdcsc.exe	msdcsc.exe
PID 664 wrote to memory of 1496	664	msdcsc.exe	msdcsc.exe
PID 664 wrote to memory of 1496	664	msdcsc.exe	msdcsc.exe
PID 664 wrote to memory of 1496	664	msdcsc.exe	msdcsc.exe
PID 664 wrote to memory of 1496	664	msdcsc.exe	msdcsc.exe
PID 664 wrote to memory of 1496	664	msdcsc.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
"C:\Users\Admin\AppData\Local\Temp\2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1700

C:\Users\Admin\AppData\Local\Temp\2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe
"C:\Users\Admin\AppData\Local\Temp\2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7.exe"
2⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1216

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:664

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
4⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1496

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Disabling Security Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
464KB

MD5
455a2fad3532faddf2835a8022988081

SHA1
8d5d184f381a175fff723458fda8999bde0d9438

SHA256
2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

SHA512
e6559c5076ec9d4ccdff2926fa5161b398c462457c6242cd079dfeecc263bc7d1d0b319397aa0d2f6a10579966aa5b020bccd1dc48bf2335c6b266268113cb2f

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

Filesize
464KB

MD5
455a2fad3532faddf2835a8022988081

SHA1
8d5d184f381a175fff723458fda8999bde0d9438

SHA256
2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

SHA512
e6559c5076ec9d4ccdff2926fa5161b398c462457c6242cd079dfeecc263bc7d1d0b319397aa0d2f6a10579966aa5b020bccd1dc48bf2335c6b266268113cb2f

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

Filesize
464KB

MD5
455a2fad3532faddf2835a8022988081

SHA1
8d5d184f381a175fff723458fda8999bde0d9438

SHA256
2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

SHA512
e6559c5076ec9d4ccdff2926fa5161b398c462457c6242cd079dfeecc263bc7d1d0b319397aa0d2f6a10579966aa5b020bccd1dc48bf2335c6b266268113cb2f

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
464KB

MD5
455a2fad3532faddf2835a8022988081

SHA1
8d5d184f381a175fff723458fda8999bde0d9438

SHA256
2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

SHA512
e6559c5076ec9d4ccdff2926fa5161b398c462457c6242cd079dfeecc263bc7d1d0b319397aa0d2f6a10579966aa5b020bccd1dc48bf2335c6b266268113cb2f

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
464KB

MD5
455a2fad3532faddf2835a8022988081

SHA1
8d5d184f381a175fff723458fda8999bde0d9438

SHA256
2c9f925fbe8a4fff4ec605d0fab5af44f7b5f5b97b3063b27a7a598685292aa7

SHA512
e6559c5076ec9d4ccdff2926fa5161b398c462457c6242cd079dfeecc263bc7d1d0b319397aa0d2f6a10579966aa5b020bccd1dc48bf2335c6b266268113cb2f

Download Submit
memory/664-69-0x0000000000000000-mapping.dmp

Download
memory/1216-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1216-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1216-65-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1216-66-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1216-63-0x0000000074E41000-0x0000000074E43000-memory.dmp

Filesize
8KB

Download
memory/1216-62-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1216-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1216-61-0x00000000004B5780-mapping.dmp

Download
memory/1216-59-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1216-57-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1496-79-0x00000000004B5780-mapping.dmp

Download
memory/1496-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1496-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads