darkcomet | dd8650f0e484ba0ea4775ccce3a9644bba747ee92f1b534628525c7ceedc69f9

Analysis

max time kernel
26s
max time network
15s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
12/04/2025, 23:53

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General

Target

msdcsc.exe
Size

658KB
MD5

3178fcad2d2c2f3c0f4f70aecfb18db7
SHA1

0ecad6522214f9bef4dd8f2f8eb927827bc4971c
SHA256

dd8650f0e484ba0ea4775ccce3a9644bba747ee92f1b534628525c7ceedc69f9
SHA512

57148c860850344b1086c8765c083862d57d99119914e218aca4c8e80dc9cbe48d206b6aefaea9ad5cda58a459ff5888f1bc82f6fabacd2aa81f52818cef4985
SSDEEP

12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hV:KZ1xuVVjfFoynPaVBUR8f+kN10EBP

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

127.0.0.1:1604

Mutex

DC_MUTEX-7X99PTF

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
DNgeskLTppzX
install
true
offline_keylogger
true
persistence
true
reg_key
System32.dll

rc4.plain

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\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
5356	attrib.exe
1008	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-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\International\Geo\Nation	msdcsc.exe

Deletes itself 1 IoCs

pid	Process
1396	notepad.exe

Executes dropped EXE 5 IoCs

pid	Process
3792	msdcsc.exe
2700	msdcsc.exe
1612	msdcsc.exe
6084	msdcsc.exe
5564	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-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System32.dll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System32.dll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\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 12 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	notepad.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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Modifies registry class 1 IoCs

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

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4152	msdcsc.exe
Token: SeSecurityPrivilege	4152	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4152	msdcsc.exe
Token: SeLoadDriverPrivilege	4152	msdcsc.exe
Token: SeSystemProfilePrivilege	4152	msdcsc.exe
Token: SeSystemtimePrivilege	4152	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4152	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4152	msdcsc.exe
Token: SeCreatePagefilePrivilege	4152	msdcsc.exe
Token: SeBackupPrivilege	4152	msdcsc.exe
Token: SeRestorePrivilege	4152	msdcsc.exe
Token: SeShutdownPrivilege	4152	msdcsc.exe
Token: SeDebugPrivilege	4152	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4152	msdcsc.exe
Token: SeChangeNotifyPrivilege	4152	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4152	msdcsc.exe
Token: SeUndockPrivilege	4152	msdcsc.exe
Token: SeManageVolumePrivilege	4152	msdcsc.exe
Token: SeImpersonatePrivilege	4152	msdcsc.exe
Token: SeCreateGlobalPrivilege	4152	msdcsc.exe
Token: 33	4152	msdcsc.exe
Token: 34	4152	msdcsc.exe
Token: 35	4152	msdcsc.exe
Token: 36	4152	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	3792	msdcsc.exe
Token: SeSecurityPrivilege	3792	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3792	msdcsc.exe
Token: SeLoadDriverPrivilege	3792	msdcsc.exe
Token: SeSystemProfilePrivilege	3792	msdcsc.exe
Token: SeSystemtimePrivilege	3792	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3792	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3792	msdcsc.exe
Token: SeCreatePagefilePrivilege	3792	msdcsc.exe
Token: SeBackupPrivilege	3792	msdcsc.exe
Token: SeRestorePrivilege	3792	msdcsc.exe
Token: SeShutdownPrivilege	3792	msdcsc.exe
Token: SeDebugPrivilege	3792	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3792	msdcsc.exe
Token: SeChangeNotifyPrivilege	3792	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3792	msdcsc.exe
Token: SeUndockPrivilege	3792	msdcsc.exe
Token: SeManageVolumePrivilege	3792	msdcsc.exe
Token: SeImpersonatePrivilege	3792	msdcsc.exe
Token: SeCreateGlobalPrivilege	3792	msdcsc.exe
Token: 33	3792	msdcsc.exe
Token: 34	3792	msdcsc.exe
Token: 35	3792	msdcsc.exe
Token: 36	3792	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2700	msdcsc.exe
Token: SeSecurityPrivilege	2700	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2700	msdcsc.exe
Token: SeLoadDriverPrivilege	2700	msdcsc.exe
Token: SeSystemProfilePrivilege	2700	msdcsc.exe
Token: SeSystemtimePrivilege	2700	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2700	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2700	msdcsc.exe
Token: SeCreatePagefilePrivilege	2700	msdcsc.exe
Token: SeBackupPrivilege	2700	msdcsc.exe
Token: SeRestorePrivilege	2700	msdcsc.exe
Token: SeShutdownPrivilege	2700	msdcsc.exe
Token: SeDebugPrivilege	2700	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2700	msdcsc.exe
Token: SeChangeNotifyPrivilege	2700	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2700	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3792	msdcsc.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3956 wrote to memory of 3792	3956	cmd.exe	87
PID 3956 wrote to memory of 3792	3956	cmd.exe	87
PID 3956 wrote to memory of 3792	3956	cmd.exe	87
PID 4152 wrote to memory of 3724	4152	msdcsc.exe	88
PID 4152 wrote to memory of 3724	4152	msdcsc.exe	88
PID 4152 wrote to memory of 3724	4152	msdcsc.exe	88
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 3792 wrote to memory of 3924	3792	msdcsc.exe	90
PID 4152 wrote to memory of 720	4152	msdcsc.exe	93
PID 4152 wrote to memory of 720	4152	msdcsc.exe	93
PID 4152 wrote to memory of 720	4152	msdcsc.exe	93
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 4152 wrote to memory of 1396	4152	msdcsc.exe	94
PID 3724 wrote to memory of 5356	3724	cmd.exe	96
PID 3724 wrote to memory of 5356	3724	cmd.exe	96
PID 3724 wrote to memory of 5356	3724	cmd.exe	96
PID 3092 wrote to memory of 2700	3092	cmd.exe	97
PID 3092 wrote to memory of 2700	3092	cmd.exe	97
PID 3092 wrote to memory of 2700	3092	cmd.exe	97
PID 720 wrote to memory of 1008	720	cmd.exe	98
PID 720 wrote to memory of 1008	720	cmd.exe	98
PID 720 wrote to memory of 1008	720	cmd.exe	98
PID 4152 wrote to memory of 1612	4152	msdcsc.exe	99
PID 4152 wrote to memory of 1612	4152	msdcsc.exe	99
PID 4152 wrote to memory of 1612	4152	msdcsc.exe	99
PID 4180 wrote to memory of 6084	4180	cmd.exe	116
PID 4180 wrote to memory of 6084	4180	cmd.exe	116
PID 4180 wrote to memory of 6084	4180	cmd.exe	116
PID 5036 wrote to memory of 5564	5036	cmd.exe	119

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
5356	attrib.exe
1008	attrib.exe

C:\Users\Admin\AppData\Local\Temp\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\msdcsc.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:4152
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\msdcsc.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3724
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\msdcsc.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:5356
- 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:720
- - 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:1008
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1396
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1612

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:3956
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  C:\Users\Admin\AppData\Local\Temp\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:3792
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3924

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:3092
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2700

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:4180
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:6084

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:5564

Network

MITRE ATT&CK Enterprise v16

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\AppData\Local\Temp\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
3178fcad2d2c2f3c0f4f70aecfb18db7

SHA1
0ecad6522214f9bef4dd8f2f8eb927827bc4971c

SHA256
dd8650f0e484ba0ea4775ccce3a9644bba747ee92f1b534628525c7ceedc69f9

SHA512
57148c860850344b1086c8765c083862d57d99119914e218aca4c8e80dc9cbe48d206b6aefaea9ad5cda58a459ff5888f1bc82f6fabacd2aa81f52818cef4985

Download Submit
memory/1396-8-0x00000000012B0000-0x00000000012B1000-memory.dmp

Filesize
4KB

Download
memory/1612-12-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2700-10-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3792-6-0x00000000022B0000-0x00000000022B1000-memory.dmp

Filesize
4KB

Download
memory/3792-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3792-20-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3924-7-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/4152-0-0x00000000023F0000-0x00000000023F1000-memory.dmp

Filesize
4KB

Download
memory/4152-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/5564-19-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/6084-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads