darkcomet | a06ed2d7d98fc8ae6887bb0245e4d714797a2074226e205e4c509d68a5e4d51f

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-12-2024 04:52

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General

Target

dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Size

658KB
MD5

dd161950cedcff2b3d9cd6ccfdc733c9
SHA1

83954fbf59bcf676268873596475189e5fa553c5
SHA256

a06ed2d7d98fc8ae6887bb0245e4d714797a2074226e205e4c509d68a5e4d51f
SHA512

0be589811e806c31b1e672fa3b41d9824683a2b6f92435deca9fba6e0ccc5a1471a2cdf70d5d53136a1d337159ebaa3e2c9c2c164102304d6e3c2ba43b1a1594
SSDEEP

12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hB:KZ1xuVVjfFoynPaVBUR8f+kN10EBH

Score

10^/10

darkcomet test1uc discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Test1UC

dast1nga.no-ip.org:1605

Mutex

DC_MUTEX-YN7Z46U

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
a7HexTPYGlvQ
install
true
offline_keylogger
true
persistence
true
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

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"	dd161950cedcff2b3d9cd6ccfdc733c9_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
3844	attrib.exe
2920	attrib.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1444	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.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	dd161950cedcff2b3d9cd6ccfdc733c9_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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1444	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeSecurityPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeBackupPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeRestorePrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeShutdownPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeDebugPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeUndockPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: 33	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: 34	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: 35	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: 36	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1444	msdcsc.exe
Token: SeSecurityPrivilege	1444	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1444	msdcsc.exe
Token: SeLoadDriverPrivilege	1444	msdcsc.exe
Token: SeSystemProfilePrivilege	1444	msdcsc.exe
Token: SeSystemtimePrivilege	1444	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1444	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1444	msdcsc.exe
Token: SeCreatePagefilePrivilege	1444	msdcsc.exe
Token: SeBackupPrivilege	1444	msdcsc.exe
Token: SeRestorePrivilege	1444	msdcsc.exe
Token: SeShutdownPrivilege	1444	msdcsc.exe
Token: SeDebugPrivilege	1444	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1444	msdcsc.exe
Token: SeChangeNotifyPrivilege	1444	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1444	msdcsc.exe
Token: SeUndockPrivilege	1444	msdcsc.exe
Token: SeManageVolumePrivilege	1444	msdcsc.exe
Token: SeImpersonatePrivilege	1444	msdcsc.exe
Token: SeCreateGlobalPrivilege	1444	msdcsc.exe
Token: 33	1444	msdcsc.exe
Token: 34	1444	msdcsc.exe
Token: 35	1444	msdcsc.exe
Token: 36	1444	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1444	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 2388	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe	82
PID 1908 wrote to memory of 2388	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe	82
PID 1908 wrote to memory of 2388	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe	82
PID 1908 wrote to memory of 3192	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe	84
PID 1908 wrote to memory of 3192	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe	84
PID 1908 wrote to memory of 3192	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe	84
PID 2388 wrote to memory of 3844	2388	cmd.exe	86
PID 2388 wrote to memory of 3844	2388	cmd.exe	86
PID 2388 wrote to memory of 3844	2388	cmd.exe	86
PID 3192 wrote to memory of 2920	3192	cmd.exe	87
PID 3192 wrote to memory of 2920	3192	cmd.exe	87
PID 3192 wrote to memory of 2920	3192	cmd.exe	87
PID 1908 wrote to memory of 1444	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe	88
PID 1908 wrote to memory of 1444	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe	88
PID 1908 wrote to memory of 1444	1908	dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe	88
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89
PID 1444 wrote to memory of 1760	1444	msdcsc.exe	89

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3844	attrib.exe
2920	attrib.exe

C:\Users\Admin\AppData\Local\Temp\dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2388
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\dd161950cedcff2b3d9cd6ccfdc733c9_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3844
- 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:3192
- - 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:2920
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1444
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1760

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

Query Registry

T1012

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
dd161950cedcff2b3d9cd6ccfdc733c9

SHA1
83954fbf59bcf676268873596475189e5fa553c5

SHA256
a06ed2d7d98fc8ae6887bb0245e4d714797a2074226e205e4c509d68a5e4d51f

SHA512
0be589811e806c31b1e672fa3b41d9824683a2b6f92435deca9fba6e0ccc5a1471a2cdf70d5d53136a1d337159ebaa3e2c9c2c164102304d6e3c2ba43b1a1594

Download Submit
memory/1444-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-74-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-70-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-71-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-66-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-67-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-68-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-78-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-77-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-76-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-73-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1444-62-0x00000000021D0000-0x00000000021D1000-memory.dmp

Filesize
4KB

Download
memory/1444-75-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1760-63-0x00000000010B0000-0x00000000010B1000-memory.dmp

Filesize
4KB

Download
memory/1908-0-0x00000000024B0000-0x00000000024B1000-memory.dmp

Filesize
4KB

Download
memory/1908-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads