darkcomet | 0791d1be1634b976961b378918d11dca6262d1812ef9c449e8096c2cfb087f0e

Analysis

max time kernel
148s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2024 01:11

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General

Target

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Size

744KB
MD5

9efca807cb8d8779e6e3805f23163150
SHA1

c17164df6305b3a73b049f955414d0422a3cbc8b
SHA256

0791d1be1634b976961b378918d11dca6262d1812ef9c449e8096c2cfb087f0e
SHA512

5318d857e165a5b8005d72e04bcc6af2de4e58bf6369a9e9df1ab5858f475ef96b6bb26a9b72b3387517d119341b666ea84cbe7ffdaa119d85b341310c403911
SSDEEP

12288:DeIEQIo9eetAPGVa/PmRiCw36khpDWnfYqIh4HzrXG8et7BSYFuDZ2xbUHaYa34b:DemIo9eetASa/PNokrDWfFsaoNFuDool

Score

10^/10

darkcomet 123 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

123

31.193.15.146:4444

Mutex

DC_MUTEX-VXUMNCN

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
oVyAbwnA4ehh
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

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

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

msdcsc.exemsdcsc.exe

pid	Process
4016	msdcsc.exe
3196	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 764 set thread context of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 4016 set thread context of 3196	4016	msdcsc.exe	84

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/764-0-0x0000000000400000-0x00000000004D1000-memory.dmp	upx
behavioral2/memory/764-7-0x0000000000400000-0x00000000004D1000-memory.dmp	upx
behavioral2/files/0x000a000000023b81-14.dat	upx
behavioral2/memory/4016-32-0x0000000000400000-0x00000000004D1000-memory.dmp	upx

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 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

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exemsdcsc.exemsdcsc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeSecurityPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeBackupPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeRestorePrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeShutdownPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeDebugPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeUndockPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: 33	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: 34	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: 35	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: 36	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3196	msdcsc.exe
Token: SeSecurityPrivilege	3196	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3196	msdcsc.exe
Token: SeLoadDriverPrivilege	3196	msdcsc.exe
Token: SeSystemProfilePrivilege	3196	msdcsc.exe
Token: SeSystemtimePrivilege	3196	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3196	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3196	msdcsc.exe
Token: SeCreatePagefilePrivilege	3196	msdcsc.exe
Token: SeBackupPrivilege	3196	msdcsc.exe
Token: SeRestorePrivilege	3196	msdcsc.exe
Token: SeShutdownPrivilege	3196	msdcsc.exe
Token: SeDebugPrivilege	3196	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3196	msdcsc.exe
Token: SeChangeNotifyPrivilege	3196	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3196	msdcsc.exe
Token: SeUndockPrivilege	3196	msdcsc.exe
Token: SeManageVolumePrivilege	3196	msdcsc.exe
Token: SeImpersonatePrivilege	3196	msdcsc.exe
Token: SeCreateGlobalPrivilege	3196	msdcsc.exe
Token: 33	3196	msdcsc.exe
Token: 34	3196	msdcsc.exe
Token: 35	3196	msdcsc.exe
Token: 36	3196	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exemsdcsc.exemsdcsc.exe

pid	Process
764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
4016	msdcsc.exe
3196	msdcsc.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 764 wrote to memory of 3552	764	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	82
PID 3552 wrote to memory of 4016	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	83
PID 3552 wrote to memory of 4016	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	83
PID 3552 wrote to memory of 4016	3552	9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe	83
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84
PID 4016 wrote to memory of 3196	4016	msdcsc.exe	84

C:\Users\Admin\AppData\Local\Temp\9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:764
- C:\Users\Admin\AppData\Local\Temp\9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\9efca807cb8d8779e6e3805f23163150_JaffaCakes118.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3552
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4016
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:3196

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

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
744KB

MD5
9efca807cb8d8779e6e3805f23163150

SHA1
c17164df6305b3a73b049f955414d0422a3cbc8b

SHA256
0791d1be1634b976961b378918d11dca6262d1812ef9c449e8096c2cfb087f0e

SHA512
5318d857e165a5b8005d72e04bcc6af2de4e58bf6369a9e9df1ab5858f475ef96b6bb26a9b72b3387517d119341b666ea84cbe7ffdaa119d85b341310c403911

Download Submit
memory/764-7-0x0000000000400000-0x00000000004D1000-memory.dmp

Filesize
836KB

Download
memory/764-0-0x0000000000400000-0x00000000004D1000-memory.dmp

Filesize
836KB

Download
memory/3196-36-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3196-37-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3196-46-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3196-44-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3196-39-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3196-38-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3196-35-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3196-30-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3196-34-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3196-33-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3552-23-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3552-3-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3552-5-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3552-21-0x00000000004C0000-0x0000000000589000-memory.dmp

Filesize
804KB

Download
memory/3552-4-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3552-9-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3552-8-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4016-32-0x0000000000400000-0x00000000004D1000-memory.dmp

Filesize
836KB

Download