darkcomet | a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762a

Analysis

max time kernel
120s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-12-2024 00:51

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General

Target

a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Size

805KB
MD5

7b1b1cc0e6eefdf5ca5819b5a51336a0
SHA1

85cbb6deb81787e202d65543e3e6fd10805efa60
SHA256

a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762a
SHA512

e9a9ffd88ddeec0432c7270951c3c2f21427611181ac951bdbc546fd77edd0e416d5ea88acc62fef40ab1440a3f620864526b53348eff635a8170d4c23c71f51
SSDEEP

12288:x9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hLl:rZ1xuVVjfFoynPaVBUR8f+kN10EBL

Score

10^/10

darkcomet deneme discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Deneme

94.54.216.104:81

Mutex

DC_MUTEX-R63XF5V

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
zVBuCkW9HfLL
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\\Desktop\\MSDCSC\\msdcsc.exe"	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.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
2724	attrib.exe
4664	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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe

Deletes itself 1 IoCs

pid	Process
460	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
4644	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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Desktop\\MSDCSC\\msdcsc.exe"	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Desktop\\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 8 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	msdcsc.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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeSecurityPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeTakeOwnershipPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeLoadDriverPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeSystemProfilePrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeSystemtimePrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeProfSingleProcessPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeIncBasePriorityPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeCreatePagefilePrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeBackupPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeRestorePrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeShutdownPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeDebugPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeSystemEnvironmentPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeChangeNotifyPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeRemoteShutdownPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeUndockPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeManageVolumePrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeImpersonatePrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeCreateGlobalPrivilege	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: 33	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: 34	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: 35	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: 36	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
Token: SeIncreaseQuotaPrivilege	4644	msdcsc.exe
Token: SeSecurityPrivilege	4644	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4644	msdcsc.exe
Token: SeLoadDriverPrivilege	4644	msdcsc.exe
Token: SeSystemProfilePrivilege	4644	msdcsc.exe
Token: SeSystemtimePrivilege	4644	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4644	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4644	msdcsc.exe
Token: SeCreatePagefilePrivilege	4644	msdcsc.exe
Token: SeBackupPrivilege	4644	msdcsc.exe
Token: SeRestorePrivilege	4644	msdcsc.exe
Token: SeShutdownPrivilege	4644	msdcsc.exe
Token: SeDebugPrivilege	4644	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4644	msdcsc.exe
Token: SeChangeNotifyPrivilege	4644	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4644	msdcsc.exe
Token: SeUndockPrivilege	4644	msdcsc.exe
Token: SeManageVolumePrivilege	4644	msdcsc.exe
Token: SeImpersonatePrivilege	4644	msdcsc.exe
Token: SeCreateGlobalPrivilege	4644	msdcsc.exe
Token: 33	4644	msdcsc.exe
Token: 34	4644	msdcsc.exe
Token: 35	4644	msdcsc.exe
Token: 36	4644	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4644	msdcsc.exe

Suspicious use of WriteProcessMemory 54 IoCs

description	pid	Process	procid_target
PID 536 wrote to memory of 4564	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	85
PID 536 wrote to memory of 4564	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	85
PID 536 wrote to memory of 4564	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	85
PID 536 wrote to memory of 3704	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	88
PID 536 wrote to memory of 3704	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	88
PID 536 wrote to memory of 3704	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	88
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 460	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	90
PID 536 wrote to memory of 4644	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	92
PID 536 wrote to memory of 4644	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	92
PID 536 wrote to memory of 4644	536	a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe	92
PID 4564 wrote to memory of 2724	4564	cmd.exe	93
PID 4564 wrote to memory of 2724	4564	cmd.exe	93
PID 4564 wrote to memory of 2724	4564	cmd.exe	93
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 4644 wrote to memory of 4896	4644	msdcsc.exe	94
PID 3704 wrote to memory of 4664	3704	cmd.exe	95
PID 3704 wrote to memory of 4664	3704	cmd.exe	95
PID 3704 wrote to memory of 4664	3704	cmd.exe	95

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2724	attrib.exe
4664	attrib.exe

C:\Users\Admin\AppData\Local\Temp\a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe
"C:\Users\Admin\AppData\Local\Temp\a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe"
1⤵
- 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:536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4564
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762aN.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2724
- 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:3704
- - 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:4664
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:460
- C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4644
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4896

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\Desktop\MSDCSC\msdcsc.exe

Filesize
805KB

MD5
7b1b1cc0e6eefdf5ca5819b5a51336a0

SHA1
85cbb6deb81787e202d65543e3e6fd10805efa60

SHA256
a75641edd3e29777eb3c2dbfd02d8f12411a9a9fd38dc44cc984f5cee162762a

SHA512
e9a9ffd88ddeec0432c7270951c3c2f21427611181ac951bdbc546fd77edd0e416d5ea88acc62fef40ab1440a3f620864526b53348eff635a8170d4c23c71f51

Download Submit
memory/460-3-0x0000000000890000-0x0000000000891000-memory.dmp

Filesize
4KB

Download
memory/536-0-0x00000000023C0000-0x00000000023C1000-memory.dmp

Filesize
4KB

Download
memory/536-16-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download
memory/4644-14-0x0000000000790000-0x0000000000791000-memory.dmp

Filesize
4KB

Download
memory/4644-18-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download
memory/4644-20-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download
memory/4896-15-0x00000000011C0000-0x00000000011C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads