darkcomet | 1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f

General

Target

1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Size

690KB
MD5

3a22854e13ec22a99aaf693ca81d2898
SHA1

8c59c824bc38b6aa0f2310752b4d6c96104f40a4
SHA256

1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f
SHA512

ca18233f933509679c74469a23487c5bb3f9e7a48aca9ba98e76d7201b679097c1af4aadf77ef3dbbee1d008d8806d418eb9c7c4fd0a85c38bf4b9d7b726a9fa

Score

10^/10

darkcomet all evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

ALL

C2

78.179.195.97:1604

Mutex

DC_MUTEX-G42FP02

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
AYYXG1rhBfzD
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:

1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.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\\Local\\Temp\\MSDCSC\\msdcsc.exe"	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

604 msdcsc.exe
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1216 attrib.exe
1156 attrib.exe

pid	process
604	msdcsc.exe

pid	process
1216	attrib.exe
1156	attrib.exe

Loads dropped DLL 2 IoCs

Processes:

1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe

pid	process
1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\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

604 msdcsc.exe

pid	process
604	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeSecurityPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeTakeOwnershipPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeLoadDriverPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeSystemProfilePrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeSystemtimePrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeProfSingleProcessPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeIncBasePriorityPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeCreatePagefilePrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeBackupPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeRestorePrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeShutdownPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeDebugPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeSystemEnvironmentPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeChangeNotifyPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeRemoteShutdownPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeUndockPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeManageVolumePrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeImpersonatePrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeCreateGlobalPrivilege	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: 33	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: 34	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: 35	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
Token: SeIncreaseQuotaPrivilege	604	msdcsc.exe
Token: SeSecurityPrivilege	604	msdcsc.exe
Token: SeTakeOwnershipPrivilege	604	msdcsc.exe
Token: SeLoadDriverPrivilege	604	msdcsc.exe
Token: SeSystemProfilePrivilege	604	msdcsc.exe
Token: SeSystemtimePrivilege	604	msdcsc.exe
Token: SeProfSingleProcessPrivilege	604	msdcsc.exe
Token: SeIncBasePriorityPrivilege	604	msdcsc.exe
Token: SeCreatePagefilePrivilege	604	msdcsc.exe
Token: SeBackupPrivilege	604	msdcsc.exe
Token: SeRestorePrivilege	604	msdcsc.exe
Token: SeShutdownPrivilege	604	msdcsc.exe
Token: SeDebugPrivilege	604	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	604	msdcsc.exe
Token: SeChangeNotifyPrivilege	604	msdcsc.exe
Token: SeRemoteShutdownPrivilege	604	msdcsc.exe
Token: SeUndockPrivilege	604	msdcsc.exe
Token: SeManageVolumePrivilege	604	msdcsc.exe
Token: SeImpersonatePrivilege	604	msdcsc.exe
Token: SeCreateGlobalPrivilege	604	msdcsc.exe
Token: 33	604	msdcsc.exe
Token: 34	604	msdcsc.exe
Token: 35	604	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

604 msdcsc.exe

pid	process
604	msdcsc.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1320 wrote to memory of 956	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe	cmd.exe
PID 1320 wrote to memory of 956	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe	cmd.exe
PID 1320 wrote to memory of 956	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe	cmd.exe
PID 1320 wrote to memory of 956	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe	cmd.exe
PID 1320 wrote to memory of 1236	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe	cmd.exe
PID 1320 wrote to memory of 1236	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe	cmd.exe
PID 1320 wrote to memory of 1236	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe	cmd.exe
PID 1320 wrote to memory of 1236	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe	cmd.exe
PID 956 wrote to memory of 1156	956	cmd.exe	attrib.exe
PID 956 wrote to memory of 1156	956	cmd.exe	attrib.exe
PID 956 wrote to memory of 1156	956	cmd.exe	attrib.exe
PID 956 wrote to memory of 1156	956	cmd.exe	attrib.exe
PID 1236 wrote to memory of 1216	1236	cmd.exe	attrib.exe
PID 1236 wrote to memory of 1216	1236	cmd.exe	attrib.exe
PID 1236 wrote to memory of 1216	1236	cmd.exe	attrib.exe
PID 1236 wrote to memory of 1216	1236	cmd.exe	attrib.exe
PID 1320 wrote to memory of 604	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe	msdcsc.exe
PID 1320 wrote to memory of 604	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe	msdcsc.exe
PID 1320 wrote to memory of 604	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe	msdcsc.exe
PID 1320 wrote to memory of 604	1320	1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe	msdcsc.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe
PID 604 wrote to memory of 580	604	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1156 attrib.exe
1216 attrib.exe

pid	process
1156	attrib.exe
1216	attrib.exe

C:\Users\Admin\AppData\Local\Temp\1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe
"C:\Users\Admin\AppData\Local\Temp\1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1320

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:956

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1156

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:1236

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1216

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\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:604

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:580

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\Local\Temp\MSDCSC\msdcsc.exe
Filesize
690KB

MD5
3a22854e13ec22a99aaf693ca81d2898

SHA1
8c59c824bc38b6aa0f2310752b4d6c96104f40a4

SHA256
1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f

SHA512
ca18233f933509679c74469a23487c5bb3f9e7a48aca9ba98e76d7201b679097c1af4aadf77ef3dbbee1d008d8806d418eb9c7c4fd0a85c38bf4b9d7b726a9fa

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
690KB

MD5
3a22854e13ec22a99aaf693ca81d2898

SHA1
8c59c824bc38b6aa0f2310752b4d6c96104f40a4

SHA256
1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f

SHA512
ca18233f933509679c74469a23487c5bb3f9e7a48aca9ba98e76d7201b679097c1af4aadf77ef3dbbee1d008d8806d418eb9c7c4fd0a85c38bf4b9d7b726a9fa

Download Submit
\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
690KB

MD5
3a22854e13ec22a99aaf693ca81d2898

SHA1
8c59c824bc38b6aa0f2310752b4d6c96104f40a4

SHA256
1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f

SHA512
ca18233f933509679c74469a23487c5bb3f9e7a48aca9ba98e76d7201b679097c1af4aadf77ef3dbbee1d008d8806d418eb9c7c4fd0a85c38bf4b9d7b726a9fa

Download Submit
\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
690KB

MD5
3a22854e13ec22a99aaf693ca81d2898

SHA1
8c59c824bc38b6aa0f2310752b4d6c96104f40a4

SHA256
1b306c2602d71c1b39a6972d2c8607e544edb2eeab17b423729a0c1b0f340f3f

SHA512
ca18233f933509679c74469a23487c5bb3f9e7a48aca9ba98e76d7201b679097c1af4aadf77ef3dbbee1d008d8806d418eb9c7c4fd0a85c38bf4b9d7b726a9fa

Download Submit
memory/580-65-0x0000000000000000-mapping.dmp

Download
memory/604-61-0x0000000000000000-mapping.dmp

Download
memory/956-55-0x0000000000000000-mapping.dmp

Download
memory/1156-57-0x0000000000000000-mapping.dmp

Download
memory/1216-58-0x0000000000000000-mapping.dmp

Download
memory/1236-56-0x0000000000000000-mapping.dmp

Download
memory/1320-54-0x0000000075CD1000-0x0000000075CD3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads