darkcomet | 1ab08ad3617c24214fae102a148aca6a226ca4ad421150d03cd1b94e0530a1de

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
13-01-2025 02:14

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General

Target

JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Size

868KB
MD5

1e411cf6a3d69cb9114fc3dcd01b7e96
SHA1

cd463436df317092b5c78c65d9003f024ec9089b
SHA256

1ab08ad3617c24214fae102a148aca6a226ca4ad421150d03cd1b94e0530a1de
SHA512

708286d798aa5e862e3c9a7b8f56d49cb7fb50152f523c9a4d3dddba7df81aad3ca6564b88bf594abedba3532206ae929a22dcae94f501d95226eede0121cfe7
SSDEEP

12288:oz2QauE/stl4yFstf0fy1WD3aW7QPCKB2yubdrMpeU/jlCjOXNtQzUkpX:oZaX/y4yly1WD/7QxJedYpprlKynQT

Score

10^/10

darkcomet bootkit 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\\system32\\MSDCSC\\skype.exe"	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\skype = "C:\\Windows\\system32\\MSDCSC\\skype.exe"	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\MSDCSC\skype.exe	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\skype.exe	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2500 set thread context of 2304	2500	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	30
PID 2304 set thread context of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2588	2360	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 5 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	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeSecurityPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeTakeOwnershipPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeLoadDriverPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeSystemProfilePrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeSystemtimePrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeProfSingleProcessPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeIncBasePriorityPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeCreatePagefilePrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeBackupPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeRestorePrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeShutdownPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeDebugPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeSystemEnvironmentPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeChangeNotifyPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeRemoteShutdownPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeUndockPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeManageVolumePrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeImpersonatePrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: SeCreateGlobalPrivilege	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: 33	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: 34	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
Token: 35	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2500	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 2304	2500	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	30
PID 2500 wrote to memory of 2304	2500	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	30
PID 2500 wrote to memory of 2304	2500	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	30
PID 2500 wrote to memory of 2304	2500	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	30
PID 2500 wrote to memory of 2304	2500	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	30
PID 2500 wrote to memory of 2304	2500	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	30
PID 2500 wrote to memory of 2304	2500	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	30
PID 2500 wrote to memory of 2304	2500	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	30
PID 2500 wrote to memory of 2304	2500	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	30
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2304 wrote to memory of 2360	2304	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	31
PID 2360 wrote to memory of 2676	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	32
PID 2360 wrote to memory of 2676	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	32
PID 2360 wrote to memory of 2676	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	32
PID 2360 wrote to memory of 2676	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	32
PID 2360 wrote to memory of 2668	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	34
PID 2360 wrote to memory of 2668	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	34
PID 2360 wrote to memory of 2668	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	34
PID 2360 wrote to memory of 2668	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	34
PID 2360 wrote to memory of 2588	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	35
PID 2360 wrote to memory of 2588	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	35
PID 2360 wrote to memory of 2588	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	35
PID 2360 wrote to memory of 2588	2360	JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe"
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2304
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1e411cf6a3d69cb9114fc3dcd01b7e96.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Adds Run key to start application
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2360
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
      4⤵
      System Location Discovery: System Language Discovery
      PID:2676
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
      4⤵
      System Location Discovery: System Language Discovery
      PID:2668
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 620
      4⤵
      Program crash
      PID:2588

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

Pre-OS Boot

T1542

Bootkit

T1542.003

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

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

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\Local\Temp\tmpcmd.bat

Filesize
101B

MD5
69a6424130056f30ead9109c048ef8da

SHA1
ccc31db20640a19d222cdf6b5c2b3f64bb2eefae

SHA256
757120d3e2b392e115283cb1ee0f9df1eba4bd9f351e6cea1f060294250b7980

SHA512
f83e1317513b122f2f04c7c7749f1d053fe481e384bbafb2ecdb743e04929a9c866664cf6a0c9b4675030266f69f9741a90aca816e751a69a1dc79060b47d1f2

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat

Filesize
50B

MD5
b774ae3fb1da087e1f83b4f7b2060e5a

SHA1
97eb9be49ac3af9c851c9e1e84e32bfd53e325a8

SHA256
adaf4a84b41e410b02e261cfd0fe7739d98647eab73c3badd32ac6e39f26351b

SHA512
f75d0f95f7306d26a12b414bfe37b97fbd37546cb3c6e403def7077329ddffb4b45d5c5f0ba0e7bb6d72851d2d691b0a85267beead42f7cbf2e8c3d45a3b4701

Download Submit
memory/2304-39-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2304-6-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2304-14-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2304-12-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2304-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2304-4-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2304-2-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2360-35-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-27-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-21-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-23-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-31-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-30-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-40-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-36-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-26-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-43-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-42-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-41-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-19-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-17-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-65-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2360-66-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads