darkcomet | 2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
2796	attrib.exe
2680	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2772	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeSecurityPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeTakeOwnershipPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeLoadDriverPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeSystemProfilePrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeSystemtimePrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeProfSingleProcessPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeIncBasePriorityPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeCreatePagefilePrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeBackupPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeRestorePrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeShutdownPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeDebugPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeSystemEnvironmentPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeChangeNotifyPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeRemoteShutdownPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeUndockPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeManageVolumePrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeImpersonatePrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeCreateGlobalPrivilege	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: 33	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: 34	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: 35	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
Token: SeIncreaseQuotaPrivilege	2772	msdcsc.exe
Token: SeSecurityPrivilege	2772	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2772	msdcsc.exe
Token: SeLoadDriverPrivilege	2772	msdcsc.exe
Token: SeSystemProfilePrivilege	2772	msdcsc.exe
Token: SeSystemtimePrivilege	2772	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2772	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2772	msdcsc.exe
Token: SeCreatePagefilePrivilege	2772	msdcsc.exe
Token: SeBackupPrivilege	2772	msdcsc.exe
Token: SeRestorePrivilege	2772	msdcsc.exe
Token: SeShutdownPrivilege	2772	msdcsc.exe
Token: SeDebugPrivilege	2772	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2772	msdcsc.exe
Token: SeChangeNotifyPrivilege	2772	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2772	msdcsc.exe
Token: SeUndockPrivilege	2772	msdcsc.exe
Token: SeManageVolumePrivilege	2772	msdcsc.exe
Token: SeImpersonatePrivilege	2772	msdcsc.exe
Token: SeCreateGlobalPrivilege	2772	msdcsc.exe
Token: 33	2772	msdcsc.exe
Token: 34	2772	msdcsc.exe
Token: 35	2772	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2772	msdcsc.exe

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 2684	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	30
PID 2424 wrote to memory of 2684	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	30
PID 2424 wrote to memory of 2684	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	30
PID 2424 wrote to memory of 2684	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	30
PID 2424 wrote to memory of 2776	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	32
PID 2424 wrote to memory of 2776	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	32
PID 2424 wrote to memory of 2776	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	32
PID 2424 wrote to memory of 2776	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	32
PID 2776 wrote to memory of 2680	2776	cmd.exe	34
PID 2776 wrote to memory of 2680	2776	cmd.exe	34
PID 2776 wrote to memory of 2680	2776	cmd.exe	34
PID 2776 wrote to memory of 2680	2776	cmd.exe	34
PID 2684 wrote to memory of 2796	2684	cmd.exe	35
PID 2684 wrote to memory of 2796	2684	cmd.exe	35
PID 2684 wrote to memory of 2796	2684	cmd.exe	35
PID 2684 wrote to memory of 2796	2684	cmd.exe	35
PID 2424 wrote to memory of 2772	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	36
PID 2424 wrote to memory of 2772	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	36
PID 2424 wrote to memory of 2772	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	36
PID 2424 wrote to memory of 2772	2424	2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe	36
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37
PID 2772 wrote to memory of 2896	2772	msdcsc.exe	37

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2796	attrib.exe
2680	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.exe
"C:\Users\Admin\AppData\Local\Temp\2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3.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:2424
- 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:2684
- - 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:2796
- 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:2776
- - 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:2680
- 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:2772
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2896

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

Filesize
658KB

MD5
18377691dc9451d8a2f834b898a78835

SHA1
313ba332a1d1b14d6ee3de3763bbdb97b91c4bc9

SHA256
2463b7469667d4172f008bcf12a8971ad1d3dcec30c93472088a27fd741fb9b3

SHA512
a04e9432cefb4d7e5cfd9b2de63d3fbe4ac3947f48ae055972c0fb71e38abd2ba00cb825bd4972967f43eadcbd7be33e09b14460de7f8640b1222d7a08a98f53

Download Submit
memory/2424-51-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2424-0-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2772-55-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2772-52-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2772-53-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2772-54-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2772-56-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2772-57-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2772-58-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2772-59-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2772-60-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2772-61-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2772-62-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2896-12-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2896-50-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads