darkcomet | 06b68054a86b83f0d67f5128894c309297df1af9bfe9bc028f2f6bc240fff5b0

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-12-2024 04:57

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Size

635KB
MD5

dd1b6709ea3dce40184b378003df2ff3
SHA1

4be1d3fc4d1cc19b8ab8853c53d7ba5ee0ebb987
SHA256

06b68054a86b83f0d67f5128894c309297df1af9bfe9bc028f2f6bc240fff5b0
SHA512

d783bed4fdc51706bc45333e1cb13a1f62b0b9dc0299fd1f7acf850b338830d019e3717ec620520952b1969c2d34a784f9d015ef3396faf950ecb5dfbd2be9ff
SSDEEP

12288:ApwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIXn/c:6wAcu99lPzvxP+Bsz2XjWTRMQckkIXnk

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
Darkcomet family
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:\\Windows\\Windowsupdate\\winupdate.exe"	dd1b6709ea3dce40184b378003df2ff3_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	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\Windowsupdate\\winupdate.exe"	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2276 set thread context of 2028	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe	28

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Windowsupdate\winupdate.exe	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
File opened for modification	C:\Windows\Windowsupdate\winupdate.exe	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
File opened for modification	C:\Windows\Windowsupdate\	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe

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	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
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

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	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeSecurityPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeBackupPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeRestorePrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeShutdownPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeDebugPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeUndockPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: 33	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: 34	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: 35	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2028	explorer.exe
Token: SeSecurityPrivilege	2028	explorer.exe
Token: SeTakeOwnershipPrivilege	2028	explorer.exe
Token: SeLoadDriverPrivilege	2028	explorer.exe
Token: SeSystemProfilePrivilege	2028	explorer.exe
Token: SeSystemtimePrivilege	2028	explorer.exe
Token: SeProfSingleProcessPrivilege	2028	explorer.exe
Token: SeIncBasePriorityPrivilege	2028	explorer.exe
Token: SeCreatePagefilePrivilege	2028	explorer.exe
Token: SeBackupPrivilege	2028	explorer.exe
Token: SeRestorePrivilege	2028	explorer.exe
Token: SeShutdownPrivilege	2028	explorer.exe
Token: SeDebugPrivilege	2028	explorer.exe
Token: SeSystemEnvironmentPrivilege	2028	explorer.exe
Token: SeChangeNotifyPrivilege	2028	explorer.exe
Token: SeRemoteShutdownPrivilege	2028	explorer.exe
Token: SeUndockPrivilege	2028	explorer.exe
Token: SeManageVolumePrivilege	2028	explorer.exe
Token: SeImpersonatePrivilege	2028	explorer.exe
Token: SeCreateGlobalPrivilege	2028	explorer.exe
Token: 33	2028	explorer.exe
Token: 34	2028	explorer.exe
Token: 35	2028	explorer.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2028	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe	28
PID 2276 wrote to memory of 2028	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe	28
PID 2276 wrote to memory of 2028	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe	28
PID 2276 wrote to memory of 2028	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe	28
PID 2276 wrote to memory of 2028	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe	28
PID 2276 wrote to memory of 2028	2276	dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dd1b6709ea3dce40184b378003df2ff3_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- 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:2276
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Checks BIOS information in registry
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2028

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2028-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2028-8-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2028-11-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2028-12-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2028-9-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2028-4-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2028-13-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2028-14-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2028-16-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2028-15-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2028-17-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2276-10-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2276-0-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads