darkcomet | 433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb

General

Target

433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Size

635KB
MD5

f9bb77131d91d3f78bbe5a3451774c5d
SHA1

8fc14ed6bdcee4ccc1371cd4a47a74caea3419f5
SHA256

433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb
SHA512

05d157ed6295e96b42eaff1d74cd2c59d04f8f7b5b4a6aed272e8572212f45325ae42d0b0445ce7cdb0f43f68c34437952e32b463b04a21831a90cda0e0e21aa
SSDEEP

12288:bpwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIXn/bB:twAcu99lPzvxP+Bsz2XjWTRMQckkIXnl

Score

10^/10

darkcomet persistence rat trojan

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:

433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\Drivers\\sys.exe"	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe

Drops file in Drivers directory 3 IoCs

Processes:

433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Drivers\sys.exe	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
File opened for modification	C:\Windows\SysWOW64\Drivers\	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
File created	C:\Windows\SysWOW64\Drivers\sys.exe	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exeexplorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exeexplorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\sys = "C:\\Windows\\system32\\Drivers\\sys.exe"	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	explorer.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe

description	pid	process	target process
PID 1464 set thread context of 1120	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe	explorer.exe

Checks processor information in registry 2 TTPs 8 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

explorer.exe433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exeexplorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

explorer.exe

pid process

1120 explorer.exe

pid	process
1120	explorer.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exeexplorer.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeSecurityPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeTakeOwnershipPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeLoadDriverPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeSystemProfilePrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeSystemtimePrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeProfSingleProcessPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeIncBasePriorityPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeCreatePagefilePrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeBackupPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeRestorePrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeShutdownPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeDebugPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeSystemEnvironmentPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeChangeNotifyPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeRemoteShutdownPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeUndockPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeManageVolumePrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeImpersonatePrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeCreateGlobalPrivilege	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: 33	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: 34	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: 35	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
Token: SeIncreaseQuotaPrivilege	1120	explorer.exe
Token: SeSecurityPrivilege	1120	explorer.exe
Token: SeTakeOwnershipPrivilege	1120	explorer.exe
Token: SeLoadDriverPrivilege	1120	explorer.exe
Token: SeSystemProfilePrivilege	1120	explorer.exe
Token: SeSystemtimePrivilege	1120	explorer.exe
Token: SeProfSingleProcessPrivilege	1120	explorer.exe
Token: SeIncBasePriorityPrivilege	1120	explorer.exe
Token: SeCreatePagefilePrivilege	1120	explorer.exe
Token: SeBackupPrivilege	1120	explorer.exe
Token: SeRestorePrivilege	1120	explorer.exe
Token: SeShutdownPrivilege	1120	explorer.exe
Token: SeDebugPrivilege	1120	explorer.exe
Token: SeSystemEnvironmentPrivilege	1120	explorer.exe
Token: SeChangeNotifyPrivilege	1120	explorer.exe
Token: SeRemoteShutdownPrivilege	1120	explorer.exe
Token: SeUndockPrivilege	1120	explorer.exe
Token: SeManageVolumePrivilege	1120	explorer.exe
Token: SeImpersonatePrivilege	1120	explorer.exe
Token: SeCreateGlobalPrivilege	1120	explorer.exe
Token: 33	1120	explorer.exe
Token: 34	1120	explorer.exe
Token: 35	1120	explorer.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe

description	pid	process	target process
PID 1464 wrote to memory of 1120	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe	explorer.exe
PID 1464 wrote to memory of 1120	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe	explorer.exe
PID 1464 wrote to memory of 1120	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe	explorer.exe
PID 1464 wrote to memory of 1120	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe	explorer.exe
PID 1464 wrote to memory of 1120	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe	explorer.exe
PID 1464 wrote to memory of 1120	1464	433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe
"C:\Users\Admin\AppData\Local\Temp\433eff0c911631a3435f3eda62ae2ca1af9dba19ec2c82491718d32e75e012bb.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1464

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
2⤵
- Checks BIOS information in registry
- Adds Run key to start application
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1120

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

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1120-55-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1120-58-0x000000000048E85C-mapping.dmp

Download
memory/1120-57-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1120-59-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1120-61-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1120-62-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1120-63-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1464-54-0x00000000758B1000-0x00000000758B3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads