darkcomet | 2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 21:01

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General

Target

2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Size

658KB
MD5

18377691dc9451d8a2f834b898a78835
SHA1

313ba332a1d1b14d6ee3de3763bbdb97b91c4bc9
SHA256

2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3
SHA512

a04e9432cefb4d7e5cfd9b2de63d3fbe4ac3947f48ae055972c0fb71e38abd2ba00cb825bd4972967f43eadcbd7be33e09b14460de7f8640b1222d7a08a98f53
SSDEEP

12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h5:qZ1xuVVjfFoynPaVBUR8f+kN10EBn

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

anonymousreal.no-ip.biz:200

Mutex

DC_MUTEX-S8ETPZZ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
kVvg3ArjwPxT
install
true
offline_keylogger
true
persistence
true
reg_key
rundll32

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"	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.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
4572	attrib.exe
628	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	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe

Executes dropped EXE 1 IoCs

pid	Process
3140	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\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rundll32 = "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 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	attrib.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	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3140	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeSecurityPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeTakeOwnershipPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeLoadDriverPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeSystemProfilePrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeSystemtimePrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeProfSingleProcessPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeIncBasePriorityPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeCreatePagefilePrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeBackupPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeRestorePrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeShutdownPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeDebugPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeSystemEnvironmentPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeChangeNotifyPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeRemoteShutdownPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeUndockPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeManageVolumePrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeImpersonatePrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeCreateGlobalPrivilege	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: 33	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: 34	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: 35	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: 36	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeIncreaseQuotaPrivilege	3140	msdcsc.exe
Token: SeSecurityPrivilege	3140	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3140	msdcsc.exe
Token: SeLoadDriverPrivilege	3140	msdcsc.exe
Token: SeSystemProfilePrivilege	3140	msdcsc.exe
Token: SeSystemtimePrivilege	3140	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3140	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3140	msdcsc.exe
Token: SeCreatePagefilePrivilege	3140	msdcsc.exe
Token: SeBackupPrivilege	3140	msdcsc.exe
Token: SeRestorePrivilege	3140	msdcsc.exe
Token: SeShutdownPrivilege	3140	msdcsc.exe
Token: SeDebugPrivilege	3140	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3140	msdcsc.exe
Token: SeChangeNotifyPrivilege	3140	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3140	msdcsc.exe
Token: SeUndockPrivilege	3140	msdcsc.exe
Token: SeManageVolumePrivilege	3140	msdcsc.exe
Token: SeImpersonatePrivilege	3140	msdcsc.exe
Token: SeCreateGlobalPrivilege	3140	msdcsc.exe
Token: 33	3140	msdcsc.exe
Token: 34	3140	msdcsc.exe
Token: 35	3140	msdcsc.exe
Token: 36	3140	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3140	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1296 wrote to memory of 4964	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	82
PID 1296 wrote to memory of 4964	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	82
PID 1296 wrote to memory of 4964	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	82
PID 1296 wrote to memory of 4276	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	84
PID 1296 wrote to memory of 4276	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	84
PID 1296 wrote to memory of 4276	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	84
PID 4964 wrote to memory of 4572	4964	cmd.exe	86
PID 4964 wrote to memory of 4572	4964	cmd.exe	86
PID 4964 wrote to memory of 4572	4964	cmd.exe	86
PID 4276 wrote to memory of 628	4276	cmd.exe	87
PID 4276 wrote to memory of 628	4276	cmd.exe	87
PID 4276 wrote to memory of 628	4276	cmd.exe	87
PID 1296 wrote to memory of 3140	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	88
PID 1296 wrote to memory of 3140	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	88
PID 1296 wrote to memory of 3140	1296	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	88
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89
PID 3140 wrote to memory of 1900	3140	msdcsc.exe	89

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
628	attrib.exe
4572	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
"C:\Users\Admin\AppData\Local\Temp\2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.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:1296
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4964
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4572
- 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:4276
- - 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:628
- 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 behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3140
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1900

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

Filesize
658KB

MD5
18377691dc9451d8a2f834b898a78835

SHA1
313ba332a1d1b14d6ee3de3763bbdb97b91c4bc9

SHA256
2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3

SHA512
a04e9432cefb4d7e5cfd9b2de63d3fbe4ac3947f48ae055972c0fb71e38abd2ba00cb825bd4972967f43eadcbd7be33e09b14460de7f8640b1222d7a08a98f53

Download Submit
memory/1296-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1296-0-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/1900-62-0x0000000000930000-0x0000000000931000-memory.dmp

Filesize
4KB

Download
memory/3140-67-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3140-64-0x00000000021C0000-0x00000000021C1000-memory.dmp

Filesize
4KB

Download
memory/3140-65-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3140-66-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3140-61-0x00000000021C0000-0x00000000021C1000-memory.dmp

Filesize
4KB

Download
memory/3140-68-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3140-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3140-70-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3140-71-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3140-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3140-73-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3140-74-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3140-75-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads