darkcomet | cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e

General

Target

cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Size

690KB
MD5

723baed58f250509d277de75a3178be8
SHA1

d5c190e5acb7f4e8d9f6286e4f48fa9bfcd1325c
SHA256

cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e
SHA512

01af4ae85aad93e59cc93f82f82c2fc8f7b4f9166a7abdcb32b85dfd417dd379064aead960746b51d0f147fdec64ea261470de31e6fb67add96836a0651c954b

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

fantomazzz.ddns.net:1604

Mutex

DC_MUTEX-H4MJNYC

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
zASJD9aEWq6M
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:

cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.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"	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

msdcsc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.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
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Disables RegEdit via registry modification
evasion
Disables Task Manager via registry modification
evasion
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1308 msdcsc.exe
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

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

pid	process
1308	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe

pid	process
1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe

Windows security modification 2 TTPs 2 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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\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

1308 msdcsc.exe

pid	process
1308	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeSecurityPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeTakeOwnershipPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeLoadDriverPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeSystemProfilePrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeSystemtimePrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeProfSingleProcessPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeIncBasePriorityPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeCreatePagefilePrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeBackupPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeRestorePrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeShutdownPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeDebugPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeSystemEnvironmentPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeChangeNotifyPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeRemoteShutdownPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeUndockPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeManageVolumePrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeImpersonatePrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeCreateGlobalPrivilege	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: 33	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: 34	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: 35	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
Token: SeIncreaseQuotaPrivilege	1308	msdcsc.exe
Token: SeSecurityPrivilege	1308	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1308	msdcsc.exe
Token: SeLoadDriverPrivilege	1308	msdcsc.exe
Token: SeSystemProfilePrivilege	1308	msdcsc.exe
Token: SeSystemtimePrivilege	1308	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1308	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1308	msdcsc.exe
Token: SeCreatePagefilePrivilege	1308	msdcsc.exe
Token: SeBackupPrivilege	1308	msdcsc.exe
Token: SeRestorePrivilege	1308	msdcsc.exe
Token: SeShutdownPrivilege	1308	msdcsc.exe
Token: SeDebugPrivilege	1308	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1308	msdcsc.exe
Token: SeChangeNotifyPrivilege	1308	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1308	msdcsc.exe
Token: SeUndockPrivilege	1308	msdcsc.exe
Token: SeManageVolumePrivilege	1308	msdcsc.exe
Token: SeImpersonatePrivilege	1308	msdcsc.exe
Token: SeCreateGlobalPrivilege	1308	msdcsc.exe
Token: 33	1308	msdcsc.exe
Token: 34	1308	msdcsc.exe
Token: 35	1308	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1308 msdcsc.exe

pid	process
1308	msdcsc.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1212 wrote to memory of 804	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe	cmd.exe
PID 1212 wrote to memory of 804	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe	cmd.exe
PID 1212 wrote to memory of 804	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe	cmd.exe
PID 1212 wrote to memory of 804	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe	cmd.exe
PID 1212 wrote to memory of 968	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe	cmd.exe
PID 1212 wrote to memory of 968	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe	cmd.exe
PID 1212 wrote to memory of 968	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe	cmd.exe
PID 1212 wrote to memory of 968	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe	cmd.exe
PID 804 wrote to memory of 764	804	cmd.exe	attrib.exe
PID 804 wrote to memory of 764	804	cmd.exe	attrib.exe
PID 804 wrote to memory of 764	804	cmd.exe	attrib.exe
PID 804 wrote to memory of 764	804	cmd.exe	attrib.exe
PID 968 wrote to memory of 1792	968	cmd.exe	attrib.exe
PID 968 wrote to memory of 1792	968	cmd.exe	attrib.exe
PID 968 wrote to memory of 1792	968	cmd.exe	attrib.exe
PID 968 wrote to memory of 1792	968	cmd.exe	attrib.exe
PID 1212 wrote to memory of 1308	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe	msdcsc.exe
PID 1212 wrote to memory of 1308	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe	msdcsc.exe
PID 1212 wrote to memory of 1308	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe	msdcsc.exe
PID 1212 wrote to memory of 1308	1212	cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe	msdcsc.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe
PID 1308 wrote to memory of 1312	1308	msdcsc.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

msdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	msdcsc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	msdcsc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	msdcsc.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1792 attrib.exe
764 attrib.exe

pid	process
1792	attrib.exe
764	attrib.exe

C:\Users\Admin\AppData\Local\Temp\cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe
"C:\Users\Admin\AppData\Local\Temp\cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1212

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:804

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e.exe" +s +h
3⤵
- Views/modifies file attributes
PID:764

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:968

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:1792

C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
2⤵
- Modifies firewall policy service
- Modifies security service
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1308

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1312

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

2

T1031

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

7

T1112

Disabling Security Tools

2

T1089

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
MD5
723baed58f250509d277de75a3178be8

SHA1
d5c190e5acb7f4e8d9f6286e4f48fa9bfcd1325c

SHA256
cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e

SHA512
01af4ae85aad93e59cc93f82f82c2fc8f7b4f9166a7abdcb32b85dfd417dd379064aead960746b51d0f147fdec64ea261470de31e6fb67add96836a0651c954b

Download Submit
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
MD5
723baed58f250509d277de75a3178be8

SHA1
d5c190e5acb7f4e8d9f6286e4f48fa9bfcd1325c

SHA256
cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e

SHA512
01af4ae85aad93e59cc93f82f82c2fc8f7b4f9166a7abdcb32b85dfd417dd379064aead960746b51d0f147fdec64ea261470de31e6fb67add96836a0651c954b

Download Submit
\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
MD5
723baed58f250509d277de75a3178be8

SHA1
d5c190e5acb7f4e8d9f6286e4f48fa9bfcd1325c

SHA256
cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e

SHA512
01af4ae85aad93e59cc93f82f82c2fc8f7b4f9166a7abdcb32b85dfd417dd379064aead960746b51d0f147fdec64ea261470de31e6fb67add96836a0651c954b

Download Submit
\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
MD5
723baed58f250509d277de75a3178be8

SHA1
d5c190e5acb7f4e8d9f6286e4f48fa9bfcd1325c

SHA256
cee4e670f5caa5f4da865a0d00549f261382aa383c0debc1f7a4d0cd183ddd9e

SHA512
01af4ae85aad93e59cc93f82f82c2fc8f7b4f9166a7abdcb32b85dfd417dd379064aead960746b51d0f147fdec64ea261470de31e6fb67add96836a0651c954b

Download Submit
memory/764-58-0x0000000000000000-mapping.dmp

Download
memory/804-56-0x0000000000000000-mapping.dmp

Download
memory/968-57-0x0000000000000000-mapping.dmp

Download
memory/1212-54-0x0000000075331000-0x0000000075333000-memory.dmp

Filesize
8KB

Download
memory/1212-55-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1308-62-0x0000000000000000-mapping.dmp

Download
memory/1308-66-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1312-67-0x0000000000000000-mapping.dmp

Download
memory/1312-69-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1792-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads