darkcomet | 1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

Reason

Machine shutdown

General

Target

1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe
Size

755KB
MD5

2641515da5144daf7c7058dbff699a23
SHA1

d16ad4ecb43e0294e51ad6b8341cb973b957c7e6
SHA256

1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8
SHA512

81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

Score

10^/10

darkcomet evasion persistence rat trojan upx

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:

1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Roaming\\I6L1bx4bXSC8VldD\\TkSiNRUHd8wI.exe\",explorer.exe"	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe

Disables Task Manager via registry modification
evasion
Drops file in Drivers directory 1 IoCs

Processes:

svhoes.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts svhoes.exe
Executes dropped EXE 1 IoCs

Processes:

svhoes.exe

pid process

1644 svhoes.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	svhoes.exe

pid	process
1644	svhoes.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1644-5-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1644-13-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Loads dropped DLL 1 IoCs

Processes:

1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe

pid process

1968 1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe

description	pid	process	target process
PID 1968 set thread context of 1644	1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe	svhoes.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:

1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe

pid	process
1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe
1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes:

1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exesvhoes.exe

description	pid	process
Token: SeDebugPrivilege	1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe
Token: 33	1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe
Token: SeIncBasePriorityPrivilege	1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe
Token: SeIncreaseQuotaPrivilege	1644	svhoes.exe
Token: SeSecurityPrivilege	1644	svhoes.exe
Token: SeTakeOwnershipPrivilege	1644	svhoes.exe
Token: SeLoadDriverPrivilege	1644	svhoes.exe
Token: SeSystemProfilePrivilege	1644	svhoes.exe
Token: SeSystemtimePrivilege	1644	svhoes.exe
Token: SeProfSingleProcessPrivilege	1644	svhoes.exe
Token: SeIncBasePriorityPrivilege	1644	svhoes.exe
Token: SeCreatePagefilePrivilege	1644	svhoes.exe
Token: SeBackupPrivilege	1644	svhoes.exe
Token: SeRestorePrivilege	1644	svhoes.exe
Token: SeShutdownPrivilege	1644	svhoes.exe
Token: SeDebugPrivilege	1644	svhoes.exe
Token: SeSystemEnvironmentPrivilege	1644	svhoes.exe
Token: SeChangeNotifyPrivilege	1644	svhoes.exe
Token: SeRemoteShutdownPrivilege	1644	svhoes.exe
Token: SeUndockPrivilege	1644	svhoes.exe
Token: SeManageVolumePrivilege	1644	svhoes.exe
Token: SeImpersonatePrivilege	1644	svhoes.exe
Token: SeCreateGlobalPrivilege	1644	svhoes.exe
Token: 33	1644	svhoes.exe
Token: 34	1644	svhoes.exe
Token: 35	1644	svhoes.exe
Token: SeShutdownPrivilege	1644	svhoes.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

svhoes.exe

pid process

1644 svhoes.exe

pid	process
1644	svhoes.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exesvhoes.exe

description	pid	process	target process
PID 1968 wrote to memory of 1644	1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe	svhoes.exe
PID 1968 wrote to memory of 1644	1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe	svhoes.exe
PID 1968 wrote to memory of 1644	1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe	svhoes.exe
PID 1968 wrote to memory of 1644	1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe	svhoes.exe
PID 1968 wrote to memory of 1644	1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe	svhoes.exe
PID 1968 wrote to memory of 1644	1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe	svhoes.exe
PID 1968 wrote to memory of 1644	1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe	svhoes.exe
PID 1968 wrote to memory of 1644	1968	1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe	svhoes.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe
PID 1644 wrote to memory of 916	1644	svhoes.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe
"C:\Users\Admin\AppData\Local\Temp\1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1968

C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
"C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe"
2⤵
- Drops file in Drivers directory
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1644

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:916

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:816

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1204

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
MD5
2641515da5144daf7c7058dbff699a23

SHA1
d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

SHA256
1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

SHA512
81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

Download Submit
C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
MD5
2641515da5144daf7c7058dbff699a23

SHA1
d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

SHA256
1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

SHA512
81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

Download Submit
\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
MD5
2641515da5144daf7c7058dbff699a23

SHA1
d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

SHA256
1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

SHA512
81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

Download Submit
memory/816-17-0x0000000002840000-0x0000000002841000-memory.dmp

Filesize
4KB

Download
memory/816-16-0x000007FEFB831000-0x000007FEFB833000-memory.dmp

Filesize
8KB

Download
memory/916-10-0x0000000000000000-mapping.dmp

Download
memory/916-11-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/1204-19-0x0000000002740000-0x0000000002741000-memory.dmp

Filesize
4KB

Download
memory/1644-5-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1644-13-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1644-14-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/1644-6-0x00000000004B56E0-mapping.dmp

Download
memory/1968-2-0x0000000075ED1000-0x0000000075ED3000-memory.dmp

Filesize
8KB

Download
memory/1968-3-0x0000000002050000-0x0000000002051000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads