darkcomet | dfca2d1a071f3bf0b62ef2237b66a42cfdd1fc92ee44eb6af3689b1aa885a860

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-10-2024 08:32

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General

Target

516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe
Size

991KB
MD5

516261b7d57ce536ad93361de49529c3
SHA1

0b31f8cac12c9f1070463ae1ac1f052de99de601
SHA256

dfca2d1a071f3bf0b62ef2237b66a42cfdd1fc92ee44eb6af3689b1aa885a860
SHA512

94bbd6f278873fb14b27f020e6b78764f0e11341dd25e1a3e676eee5ef041830e59173a19ad790bf16bda0d5c5aad30a02659056d373726a411bea7d65ca19f3
SSDEEP

12288:XeztDN2j6/s57dX0VQNfa1tVLRiBRCp4seyqcIXMztjYOCf1miSAwojbEhCsiZl1:ORg+/s5e1HrMc4zS78sspR5nspk39

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

andrejpavlin.no-ip.biz:1727

Mutex

DC_MUTEX-A9FM9RZ

Attributes

gencode
nqXTgZgraX23
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies firewall policy service 3 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

Processes:

cvtres.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	cvtres.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	cvtres.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	cvtres.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
4148	attrib.exe
4884	attrib.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

516261b7d57ce536ad93361de49529c3_JaffaCakes118.execvtres.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	cvtres.exe

Executes dropped EXE 3 IoCs

Processes:

wininit.execvtres.exespIn.exe

pid	Process
3244	wininit.exe
4176	cvtres.exe
356	spIn.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

wininit.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Start-Up Application = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wininit.exe"	wininit.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

wininit.exe

description	pid	Process	procid_target
PID 3244 set thread context of 4176	3244	wininit.exe	88
PID 3244 set thread context of 356	3244	wininit.exe	96

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 9 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:

spIn.exewininit.execmd.exeattrib.execmd.exeattrib.exe516261b7d57ce536ad93361de49529c3_JaffaCakes118.execvtres.exenotepad.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spIn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wininit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

wininit.exe

pid	Process
3244	wininit.exe
3244	wininit.exe
3244	wininit.exe
3244	wininit.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

cvtres.exe

pid	Process
4176	cvtres.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

Processes:

cvtres.exewininit.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4176	cvtres.exe
Token: SeSecurityPrivilege	4176	cvtres.exe
Token: SeTakeOwnershipPrivilege	4176	cvtres.exe
Token: SeLoadDriverPrivilege	4176	cvtres.exe
Token: SeSystemProfilePrivilege	4176	cvtres.exe
Token: SeSystemtimePrivilege	4176	cvtres.exe
Token: SeProfSingleProcessPrivilege	4176	cvtres.exe
Token: SeIncBasePriorityPrivilege	4176	cvtres.exe
Token: SeCreatePagefilePrivilege	4176	cvtres.exe
Token: SeBackupPrivilege	4176	cvtres.exe
Token: SeRestorePrivilege	4176	cvtres.exe
Token: SeShutdownPrivilege	4176	cvtres.exe
Token: SeDebugPrivilege	4176	cvtres.exe
Token: SeSystemEnvironmentPrivilege	4176	cvtres.exe
Token: SeChangeNotifyPrivilege	4176	cvtres.exe
Token: SeRemoteShutdownPrivilege	4176	cvtres.exe
Token: SeUndockPrivilege	4176	cvtres.exe
Token: SeManageVolumePrivilege	4176	cvtres.exe
Token: SeImpersonatePrivilege	4176	cvtres.exe
Token: SeCreateGlobalPrivilege	4176	cvtres.exe
Token: 33	4176	cvtres.exe
Token: 34	4176	cvtres.exe
Token: 35	4176	cvtres.exe
Token: 36	4176	cvtres.exe
Token: SeDebugPrivilege	3244	wininit.exe
Token: SeDebugPrivilege	3244	wininit.exe
Token: SeDebugPrivilege	3244	wininit.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

cvtres.exe

pid	Process
4176	cvtres.exe

Suspicious use of WriteProcessMemory 61 IoCs

Processes:

516261b7d57ce536ad93361de49529c3_JaffaCakes118.exewininit.execvtres.execmd.execmd.exe

description	pid	Process	procid_target
PID 3452 wrote to memory of 3244	3452	516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe	87
PID 3452 wrote to memory of 3244	3452	516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe	87
PID 3452 wrote to memory of 3244	3452	516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe	87
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 3244 wrote to memory of 4176	3244	wininit.exe	88
PID 4176 wrote to memory of 536	4176	cvtres.exe	89
PID 4176 wrote to memory of 536	4176	cvtres.exe	89
PID 4176 wrote to memory of 536	4176	cvtres.exe	89
PID 4176 wrote to memory of 4608	4176	cvtres.exe	91
PID 4176 wrote to memory of 4608	4176	cvtres.exe	91
PID 4176 wrote to memory of 4608	4176	cvtres.exe	91
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 4176 wrote to memory of 2908	4176	cvtres.exe	92
PID 536 wrote to memory of 4884	536	cmd.exe	94
PID 536 wrote to memory of 4884	536	cmd.exe	94
PID 536 wrote to memory of 4884	536	cmd.exe	94
PID 4608 wrote to memory of 4148	4608	cmd.exe	95
PID 4608 wrote to memory of 4148	4608	cmd.exe	95
PID 4608 wrote to memory of 4148	4608	cmd.exe	95
PID 3244 wrote to memory of 356	3244	wininit.exe	96
PID 3244 wrote to memory of 356	3244	wininit.exe	96
PID 3244 wrote to memory of 356	3244	wininit.exe	96
PID 3244 wrote to memory of 356	3244	wininit.exe	96
PID 3244 wrote to memory of 356	3244	wininit.exe	96
PID 3244 wrote to memory of 356	3244	wininit.exe	96
PID 3244 wrote to memory of 356	3244	wininit.exe	96
PID 3244 wrote to memory of 356	3244	wininit.exe	96
PID 3244 wrote to memory of 356	3244	wininit.exe	96
PID 3244 wrote to memory of 356	3244	wininit.exe	96

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
4148	attrib.exe
4884	attrib.exe

C:\Users\Admin\AppData\Local\Temp\516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Users\Admin\AppData\Local\Temp\wininit.exe
  "C:\Users\Admin\AppData\Local\Temp\wininit.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3244
- - C:\Users\Admin\AppData\Local\Temp\cvtres.exe
    C:\Users\Admin\AppData\Local\Temp\\cvtres.exe
    3⤵
    - Modifies firewall policy service
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4176
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\cvtres.exe" +s +h
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:536
    - - C:\Windows\SysWOW64\attrib.exe
        
        attrib "C:\Users\Admin\AppData\Local\Temp\cvtres.exe" +s +h
        5⤵
        Sets file to hidden
        System Location Discovery: System Language Discovery
        Views/modifies file attributes
        
        PID:4884
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4608
    - - C:\Windows\SysWOW64\attrib.exe
        
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        5⤵
        Sets file to hidden
        System Location Discovery: System Language Discovery
        Views/modifies file attributes
        
        PID:4148
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:2908
- - C:\Users\Admin\AppData\Local\Temp\spIn.exe
    C:\Users\Admin\AppData\Local\Temp\\spIn.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:356

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

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\AppData\Local\Temp\cvtres.exe

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\wininit.exe

Filesize
941KB

MD5
ea603aabaa992b588d8a884518591a65

SHA1
24631edf985520a92b45fb197c16ba989a64658a

SHA256
bf6e3c26139ee6165cd5b0d8094cba0b2e273ce3b9f5207ceaeebb436ff57c34

SHA512
b94515ebfaee5962c3565673803439c435f71dbdf081b912810cce0237a1ae9d967ffe241a5a1f7c52e060c931473b2ce844855574b28b71e1b5fd58ece41055

Download Submit
memory/356-35-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/356-40-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/356-38-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/356-43-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2908-30-0x0000000001340000-0x0000000001341000-memory.dmp

Filesize
4KB

Download
memory/3244-18-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/3244-42-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/3244-17-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/3244-15-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/3452-16-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/3452-0-0x0000000074C62000-0x0000000074C63000-memory.dmp

Filesize
4KB

Download
memory/3452-1-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/3452-2-0x0000000074C60000-0x0000000075211000-memory.dmp

Filesize
5.7MB

Download
memory/4176-27-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-48-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-32-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-57-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-29-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-28-0x00000000007E0000-0x00000000007E1000-memory.dmp

Filesize
4KB

Download
memory/4176-25-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-24-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-45-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-46-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-47-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-31-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-49-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-50-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-51-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-52-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-53-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-54-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-55-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-56-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-21-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4176-58-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download