darkcomet | 8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6

General

Target

8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Size

333KB
MD5

43b6dfffd47b4d4f3d23cdd3cce7e730
SHA1

1de316fc167f9e504658859f8cf4cd4d34140310
SHA256

8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6
SHA512

532111c665a45bb9885a0c89d2e31a9779833d2913bcf1f0f2b27c0541db03e2032b573849339e16681bb873c8267a3a46c13e125f4b0e2bb416fd6923bfa10b
SSDEEP

6144:KpNuoZB8CK7pJId0xyQkRqm9hd5ManyCVfKcwuzqCFRwmvYaKY:yA7pqd0xyXfvMcfuBCDwmf

Score

10^/10

darkcomet 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:

8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\Windupdt\\winupdate.exe"	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1908-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1908-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1908-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1908-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1908-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\system32\\Windupdt\\winupdate.exe"	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

Drops file in System32 directory 3 IoCs

Processes:

8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

description	ioc	process
File created	C:\Windows\SysWOW64\Windupdt\winupdate.exe	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\winupdate.exe	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

description	pid	process	target process
PID 1112 set thread context of 1908	1112	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
PID 1908 set thread context of 1952	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	explorer.exe

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeSecurityPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeTakeOwnershipPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeLoadDriverPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeSystemProfilePrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeSystemtimePrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeProfSingleProcessPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeIncBasePriorityPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeCreatePagefilePrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeBackupPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeRestorePrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeShutdownPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeDebugPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeSystemEnvironmentPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeChangeNotifyPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeRemoteShutdownPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeUndockPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeManageVolumePrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeImpersonatePrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: SeCreateGlobalPrivilege	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: 33	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: 34	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
Token: 35	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exeexplorer.exe

pid process

1112 8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
1952 explorer.exe

pid	process
1112	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
1952	explorer.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe

C:\Users\Admin\AppData\Local\Temp\8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
"C:\Users\Admin\AppData\Local\Temp\8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1112

C:\Users\Admin\AppData\Local\Temp\8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
C:\Users\Admin\AppData\Local\Temp\8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
2⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1908

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1952

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1908-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1908-57-0x00000000004B33D0-mapping.dmp

Download
memory/1908-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1908-59-0x0000000075B11000-0x0000000075B13000-memory.dmp

Filesize
8KB

Download
memory/1908-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1908-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1908-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1952-62-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1952-64-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1952-65-0x000000000040177C-mapping.dmp

Download
memory/1952-68-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1952-71-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1952-72-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download

description	pid	process	target process
PID 1112 wrote to memory of 1908	1112	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
PID 1112 wrote to memory of 1908	1112	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
PID 1112 wrote to memory of 1908	1112	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
PID 1112 wrote to memory of 1908	1112	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
PID 1112 wrote to memory of 1908	1112	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
PID 1112 wrote to memory of 1908	1112	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
PID 1112 wrote to memory of 1908	1112	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
PID 1112 wrote to memory of 1908	1112	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
PID 1112 wrote to memory of 1908	1112	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe
PID 1908 wrote to memory of 1952	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	explorer.exe
PID 1908 wrote to memory of 1952	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	explorer.exe
PID 1908 wrote to memory of 1952	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	explorer.exe
PID 1908 wrote to memory of 1952	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	explorer.exe
PID 1908 wrote to memory of 1952	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	explorer.exe
PID 1908 wrote to memory of 1952	1908	8e8464b9cb182bff66d6b120e1afcd572a69841b024e8e036eeeefad438cd0f6.exe	explorer.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads