darkcomet | efd4b3fc882f39cf90b38e28f5a8d6d95f3e2e63bf89e2b863912ee661f87f5f

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
13/10/2024, 05:27

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General

Target

3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Size

658KB
MD5

3e0cdb9d798be6ebd89f550ef06f290a
SHA1

03aaa24bdf12565cb30811600efa2f0b3c5c36ef
SHA256

efd4b3fc882f39cf90b38e28f5a8d6d95f3e2e63bf89e2b863912ee661f87f5f
SHA512

cb4b45efb27324bee29e8c77ed71712b133657c65d786976d66d96ab6d967e62ae3823b0af575a3591e3fcb27c9bc4607143a0790a6ba576965af4d2923eacf7
SSDEEP

12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/ha:KZ1xuVVjfFoynPaVBUR8f+kN10EB0

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

vanicanetwork.no-ip.org:3132

Mutex

DC_MUTEX-HGCNN8A

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
xTykv6eYHaaD
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

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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.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

pid	Process
2908	attrib.exe
2188	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2408	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
2964	3e0cdb9d798be6ebd89f550ef06f290a_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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe

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 7 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	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2408	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeSecurityPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeBackupPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeRestorePrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeShutdownPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeDebugPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeUndockPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: 33	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: 34	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: 35	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2408	msdcsc.exe
Token: SeSecurityPrivilege	2408	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2408	msdcsc.exe
Token: SeLoadDriverPrivilege	2408	msdcsc.exe
Token: SeSystemProfilePrivilege	2408	msdcsc.exe
Token: SeSystemtimePrivilege	2408	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2408	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2408	msdcsc.exe
Token: SeCreatePagefilePrivilege	2408	msdcsc.exe
Token: SeBackupPrivilege	2408	msdcsc.exe
Token: SeRestorePrivilege	2408	msdcsc.exe
Token: SeShutdownPrivilege	2408	msdcsc.exe
Token: SeDebugPrivilege	2408	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2408	msdcsc.exe
Token: SeChangeNotifyPrivilege	2408	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2408	msdcsc.exe
Token: SeUndockPrivilege	2408	msdcsc.exe
Token: SeManageVolumePrivilege	2408	msdcsc.exe
Token: SeImpersonatePrivilege	2408	msdcsc.exe
Token: SeCreateGlobalPrivilege	2408	msdcsc.exe
Token: 33	2408	msdcsc.exe
Token: 34	2408	msdcsc.exe
Token: 35	2408	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2408	msdcsc.exe

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 2224	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2224	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2224	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2224	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe	30
PID 2964 wrote to memory of 2428	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe	31
PID 2964 wrote to memory of 2428	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe	31
PID 2964 wrote to memory of 2428	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe	31
PID 2964 wrote to memory of 2428	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe	31
PID 2428 wrote to memory of 2908	2428	cmd.exe	34
PID 2428 wrote to memory of 2908	2428	cmd.exe	34
PID 2428 wrote to memory of 2908	2428	cmd.exe	34
PID 2428 wrote to memory of 2908	2428	cmd.exe	34
PID 2224 wrote to memory of 2188	2224	cmd.exe	35
PID 2224 wrote to memory of 2188	2224	cmd.exe	35
PID 2224 wrote to memory of 2188	2224	cmd.exe	35
PID 2224 wrote to memory of 2188	2224	cmd.exe	35
PID 2964 wrote to memory of 2408	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe	36
PID 2964 wrote to memory of 2408	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe	36
PID 2964 wrote to memory of 2408	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe	36
PID 2964 wrote to memory of 2408	2964	3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe	36
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37
PID 2408 wrote to memory of 2788	2408	msdcsc.exe	37

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2908	attrib.exe
2188	attrib.exe

C:\Users\Admin\AppData\Local\Temp\3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2224
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\3e0cdb9d798be6ebd89f550ef06f290a_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2188
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2428
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2908
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - 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:2408
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2788

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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

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Downloads

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

Filesize
658KB

MD5
3e0cdb9d798be6ebd89f550ef06f290a

SHA1
03aaa24bdf12565cb30811600efa2f0b3c5c36ef

SHA256
efd4b3fc882f39cf90b38e28f5a8d6d95f3e2e63bf89e2b863912ee661f87f5f

SHA512
cb4b45efb27324bee29e8c77ed71712b133657c65d786976d66d96ab6d967e62ae3823b0af575a3591e3fcb27c9bc4607143a0790a6ba576965af4d2923eacf7

Download Submit
memory/2408-59-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-58-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-52-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-53-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-54-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-55-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-56-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-57-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-60-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2408-61-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2788-50-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/2788-12-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2964-0-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2964-51-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads