darkcomet | 56c74ddbfc9aa198469fb850087f4da61b84a6988b0785cdd77a106126088716

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-12-2024 09:20

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General

Target

d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Size

742KB
MD5

d1b3081a636169e5848796b021d3a665
SHA1

c21354fb6d57025cf78858d6f56d7a50070bcc90
SHA256

56c74ddbfc9aa198469fb850087f4da61b84a6988b0785cdd77a106126088716
SHA512

db10e4e8db2d14c13ec350ae8528462cfdc2df5ac869a439572efaf7e0670563938eca6595ef2cb5bca6147b8bb1693337f3f1ba9122d55b3529de42b24fe3ba
SSDEEP

12288:wI7XNvs/CX0dSTw5ROPcE1l3EOwQEtCFCCS9pCc4RUOoOMTozFrx4JLNuUGh2lAY:HvsKX0EwiPcKl3utCFdbcrOoOMarxoc

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:\\Windupdt\\winupdate.exe"	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	d1b3081a636169e5848796b021d3a665_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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2184 set thread context of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2608 set thread context of 2888	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	29
PID 2888 set thread context of 2580	2888	explorer.exe	30

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2420	2580	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 4 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	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeSecurityPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeBackupPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeRestorePrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeShutdownPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeDebugPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeUndockPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: 33	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: 34	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
Token: 35	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2608	2184	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	28
PID 2608 wrote to memory of 2888	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	29
PID 2608 wrote to memory of 2888	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	29
PID 2608 wrote to memory of 2888	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	29
PID 2608 wrote to memory of 2888	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	29
PID 2608 wrote to memory of 2888	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	29
PID 2608 wrote to memory of 2888	2608	d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe	29
PID 2888 wrote to memory of 2580	2888	explorer.exe	30
PID 2888 wrote to memory of 2580	2888	explorer.exe	30
PID 2888 wrote to memory of 2580	2888	explorer.exe	30
PID 2888 wrote to memory of 2580	2888	explorer.exe	30
PID 2888 wrote to memory of 2580	2888	explorer.exe	30
PID 2888 wrote to memory of 2580	2888	explorer.exe	30
PID 2888 wrote to memory of 2580	2888	explorer.exe	30
PID 2888 wrote to memory of 2580	2888	explorer.exe	30
PID 2888 wrote to memory of 2580	2888	explorer.exe	30
PID 2888 wrote to memory of 2580	2888	explorer.exe	30
PID 2888 wrote to memory of 2580	2888	explorer.exe	30
PID 2888 wrote to memory of 2580	2888	explorer.exe	30
PID 2580 wrote to memory of 2420	2580	explorer.exe	31
PID 2580 wrote to memory of 2420	2580	explorer.exe	31
PID 2580 wrote to memory of 2420	2580	explorer.exe	31
PID 2580 wrote to memory of 2420	2580	explorer.exe	31

C:\Users\Admin\AppData\Local\Temp\d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Users\Admin\AppData\Local\Temp\d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d1b3081a636169e5848796b021d3a665_JaffaCakes118.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks BIOS information in registry
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - 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:2608
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2888
  - - C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2580
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2580 -s 224
        5⤵
        Program crash
        
        PID:2420

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

memory/2184-0-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/2608-5-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-13-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-18-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-17-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-15-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-11-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-3-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-1-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-9-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-7-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-19-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-21-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-22-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-20-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-36-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2608-34-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2888-46-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2888-29-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2888-33-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2888-32-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2888-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2888-25-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads