darkcomet | 9d28cbfb904deaa87d0cfb177a87d33326675657ce4945eb5e274bbdb9635c5e

Analysis

max time kernel
150s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/10/2024, 05:27

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General

Target

091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Size

839KB
MD5

091a6024f53e944b4c478d3e5d9191e9
SHA1

2c3617dd65a6132cddebcf2ea956d4e6da073bd3
SHA256

9d28cbfb904deaa87d0cfb177a87d33326675657ce4945eb5e274bbdb9635c5e
SHA512

0f41152d58b3da46c1d580fea4a1337766d83f9a6a33c758f35fdfb2283280f1f09babf907ec45a5548211d4e560828f8da6a2554552ff36946023a769a27b22
SSDEEP

24576:EN77xpFgbAPuOry7iOA+rtC0Oii78URBsmOCfpzCb/ebn61qM2:EIbARr0i+OfsURV

Score

10^/10

darkcomet discovery 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

T1547.004

Modify Registry

T1112

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\\Winsound\\soundloader.exe"	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	soundloader.exe

Executes dropped EXE 1 IoCs

pid	Process
2304	soundloader.exe

Loads dropped DLL 2 IoCs

pid	Process
3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\winuappls = "C:\\Users\\Admin\\AppData\\Roaming\\Winsound\\soundloader.exe"	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	soundloader.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	soundloader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	soundloader.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	soundloader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	soundloader.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	soundloader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeSecurityPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeBackupPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeRestorePrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeShutdownPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeDebugPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeUndockPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: 33	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: 34	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: 35	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2304	soundloader.exe
Token: SeSecurityPrivilege	2304	soundloader.exe
Token: SeTakeOwnershipPrivilege	2304	soundloader.exe
Token: SeLoadDriverPrivilege	2304	soundloader.exe
Token: SeSystemProfilePrivilege	2304	soundloader.exe
Token: SeSystemtimePrivilege	2304	soundloader.exe
Token: SeProfSingleProcessPrivilege	2304	soundloader.exe
Token: SeIncBasePriorityPrivilege	2304	soundloader.exe
Token: SeCreatePagefilePrivilege	2304	soundloader.exe
Token: SeBackupPrivilege	2304	soundloader.exe
Token: SeRestorePrivilege	2304	soundloader.exe
Token: SeShutdownPrivilege	2304	soundloader.exe
Token: SeDebugPrivilege	2304	soundloader.exe
Token: SeSystemEnvironmentPrivilege	2304	soundloader.exe
Token: SeChangeNotifyPrivilege	2304	soundloader.exe
Token: SeRemoteShutdownPrivilege	2304	soundloader.exe
Token: SeUndockPrivilege	2304	soundloader.exe
Token: SeManageVolumePrivilege	2304	soundloader.exe
Token: SeImpersonatePrivilege	2304	soundloader.exe
Token: SeCreateGlobalPrivilege	2304	soundloader.exe
Token: 33	2304	soundloader.exe
Token: 34	2304	soundloader.exe
Token: 35	2304	soundloader.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2304	soundloader.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 2304	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe	30
PID 3000 wrote to memory of 2304	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe	30
PID 3000 wrote to memory of 2304	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe	30
PID 3000 wrote to memory of 2304	3000	091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\091a6024f53e944b4c478d3e5d9191e9_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Users\Admin\AppData\Roaming\Winsound\soundloader.exe
  "C:\Users\Admin\AppData\Roaming\Winsound\soundloader.exe"
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Winsound\soundloader.exe

Filesize
839KB

MD5
091a6024f53e944b4c478d3e5d9191e9

SHA1
2c3617dd65a6132cddebcf2ea956d4e6da073bd3

SHA256
9d28cbfb904deaa87d0cfb177a87d33326675657ce4945eb5e274bbdb9635c5e

SHA512
0f41152d58b3da46c1d580fea4a1337766d83f9a6a33c758f35fdfb2283280f1f09babf907ec45a5548211d4e560828f8da6a2554552ff36946023a769a27b22

Download Submit
memory/2304-19-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-21-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-28-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-15-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-16-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-17-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-18-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-27-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-26-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-22-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-20-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-23-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-24-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2304-25-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/3000-1-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/3000-0-0x0000000000401000-0x0000000000455000-memory.dmp

Filesize
336KB

Download
memory/3000-14-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads