darkcomet | dfca2d1a071f3bf0b62ef2237b66a42cfdd1fc92ee44eb6af3689b1aa885a860

Analysis

max time kernel
150s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	cvtres.exe
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

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
3024	attrib.exe
2740	attrib.exe

Executes dropped EXE 3 IoCs

Processes:

wininit.execvtres.exespIn.exe

pid	Process
2900	wininit.exe
2256	cvtres.exe
2968	spIn.exe

Loads dropped DLL 4 IoCs

Processes:

516261b7d57ce536ad93361de49529c3_JaffaCakes118.exewininit.exe

pid	Process
1688	516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe
1688	516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe
2900	wininit.exe
2900	wininit.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-1-5-21-3692679935-4019334568-335155002-1000\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 2900 set thread context of 2256	2900	wininit.exe	31
PID 2900 set thread context of 2968	2900	wininit.exe	32

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:

516261b7d57ce536ad93361de49529c3_JaffaCakes118.exewininit.exespIn.execmd.exenotepad.execmd.execvtres.exeattrib.exeattrib.exe

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

wininit.exe

pid	Process
2900	wininit.exe
2900	wininit.exe
2900	wininit.exe
2900	wininit.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

cvtres.exe

pid	Process
2256	cvtres.exe

Suspicious use of AdjustPrivilegeToken 26 IoCs

Processes:

wininit.execvtres.exe

description	pid	Process
Token: SeDebugPrivilege	2900	wininit.exe
Token: SeDebugPrivilege	2900	wininit.exe
Token: SeDebugPrivilege	2900	wininit.exe
Token: SeIncreaseQuotaPrivilege	2256	cvtres.exe
Token: SeSecurityPrivilege	2256	cvtres.exe
Token: SeTakeOwnershipPrivilege	2256	cvtres.exe
Token: SeLoadDriverPrivilege	2256	cvtres.exe
Token: SeSystemProfilePrivilege	2256	cvtres.exe
Token: SeSystemtimePrivilege	2256	cvtres.exe
Token: SeProfSingleProcessPrivilege	2256	cvtres.exe
Token: SeIncBasePriorityPrivilege	2256	cvtres.exe
Token: SeCreatePagefilePrivilege	2256	cvtres.exe
Token: SeBackupPrivilege	2256	cvtres.exe
Token: SeRestorePrivilege	2256	cvtres.exe
Token: SeShutdownPrivilege	2256	cvtres.exe
Token: SeDebugPrivilege	2256	cvtres.exe
Token: SeSystemEnvironmentPrivilege	2256	cvtres.exe
Token: SeChangeNotifyPrivilege	2256	cvtres.exe
Token: SeRemoteShutdownPrivilege	2256	cvtres.exe
Token: SeUndockPrivilege	2256	cvtres.exe
Token: SeManageVolumePrivilege	2256	cvtres.exe
Token: SeImpersonatePrivilege	2256	cvtres.exe
Token: SeCreateGlobalPrivilege	2256	cvtres.exe
Token: 33	2256	cvtres.exe
Token: 34	2256	cvtres.exe
Token: 35	2256	cvtres.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

cvtres.exe

pid	Process
2256	cvtres.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

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

description	pid	Process	procid_target
PID 1688 wrote to memory of 2900	1688	516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe	30
PID 1688 wrote to memory of 2900	1688	516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe	30
PID 1688 wrote to memory of 2900	1688	516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe	30
PID 1688 wrote to memory of 2900	1688	516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe	30
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2256	2900	wininit.exe	31
PID 2900 wrote to memory of 2968	2900	wininit.exe	32
PID 2900 wrote to memory of 2968	2900	wininit.exe	32
PID 2900 wrote to memory of 2968	2900	wininit.exe	32
PID 2900 wrote to memory of 2968	2900	wininit.exe	32
PID 2900 wrote to memory of 2968	2900	wininit.exe	32
PID 2900 wrote to memory of 2968	2900	wininit.exe	32
PID 2900 wrote to memory of 2968	2900	wininit.exe	32
PID 2900 wrote to memory of 2968	2900	wininit.exe	32
PID 2900 wrote to memory of 2968	2900	wininit.exe	32
PID 2900 wrote to memory of 2968	2900	wininit.exe	32
PID 2256 wrote to memory of 2572	2256	cvtres.exe	33
PID 2256 wrote to memory of 2572	2256	cvtres.exe	33
PID 2256 wrote to memory of 2572	2256	cvtres.exe	33
PID 2256 wrote to memory of 2572	2256	cvtres.exe	33
PID 2256 wrote to memory of 2536	2256	cvtres.exe	34
PID 2256 wrote to memory of 2536	2256	cvtres.exe	34
PID 2256 wrote to memory of 2536	2256	cvtres.exe	34
PID 2256 wrote to memory of 2536	2256	cvtres.exe	34
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2256 wrote to memory of 2540	2256	cvtres.exe	36
PID 2572 wrote to memory of 3024	2572	cmd.exe	38
PID 2572 wrote to memory of 3024	2572	cmd.exe	38
PID 2572 wrote to memory of 3024	2572	cmd.exe	38
PID 2572 wrote to memory of 3024	2572	cmd.exe	38
PID 2536 wrote to memory of 2740	2536	cmd.exe	39
PID 2536 wrote to memory of 2740	2536	cmd.exe	39

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
3024	attrib.exe
2740	attrib.exe

C:\Users\Admin\AppData\Local\Temp\516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\516261b7d57ce536ad93361de49529c3_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Users\Admin\AppData\Local\Temp\wininit.exe
  "C:\Users\Admin\AppData\Local\Temp\wininit.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - 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:2900
- - C:\Users\Admin\AppData\Local\Temp\cvtres.exe
    C:\Users\Admin\AppData\Local\Temp\\cvtres.exe
    3⤵
    - Modifies firewall policy service
    - 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:2256
  - - 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:2572
    - - 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:3024
  - - 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:2536
    - - 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:2740
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:2540
- - 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:2968

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

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\wininit.exe

Filesize
941KB

MD5
ea603aabaa992b588d8a884518591a65

SHA1
24631edf985520a92b45fb197c16ba989a64658a

SHA256
bf6e3c26139ee6165cd5b0d8094cba0b2e273ce3b9f5207ceaeebb436ff57c34

SHA512
b94515ebfaee5962c3565673803439c435f71dbdf081b912810cce0237a1ae9d967ffe241a5a1f7c52e060c931473b2ce844855574b28b71e1b5fd58ece41055

Download Submit
\Users\Admin\AppData\Local\Temp\cvtres.exe

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
memory/1688-1-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/1688-2-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/1688-13-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/1688-0-0x0000000074F01000-0x0000000074F02000-memory.dmp

Filesize
4KB

Download
memory/2256-22-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-54-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-28-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-32-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2256-29-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-27-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-26-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-25-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-24-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-106-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-21-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-60-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-57-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2256-56-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2540-61-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2900-15-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2900-58-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2900-14-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2968-46-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2968-44-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2968-42-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2968-40-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2968-38-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2968-53-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2968-50-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/2968-104-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download