darkcomet | f0a438984aa2feb5b737431f2ecc278052e00c9d7bccdf34ae7a8f9ac3b32b7d

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 08:32

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General

Target

MacrosEffect.exe
Size

764KB
MD5

7a7e5cb7dc74661297d6d5ebd0f52c8b
SHA1

2f3ca679fca85f0c5bbf5382d33d81bc1a07ebce
SHA256

1b379086ce32f6939586398021a8a92c66d31a5ed64a7af9739b8ae2229e21d0
SHA512

626ac48dc0d59e663d9b16bbb9fd414c60780a69b97d0f26b94a473982eb8b3c8ae70ea47eeaf43e91295457c6ca255650fb28166d9864a6bd7653ca304e428f
SSDEEP

12288:Z9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hcCwt1LYIT:jZ1xuVVjfFoynPaVBUR8f+kN10EB941H

Score

10^/10

darkcomet èëüÿäàóí discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

ÈëüÿÄàóí

uselad.servehttp.com:1604

Mutex

DC_MUTEX-ZL0C7HV

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
9kZAKeoXitRp
install
true
offline_keylogger
true
persistence
false
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\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	MacrosEffect.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
2892	attrib.exe
2452	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	MacrosEffect.exe

Executes dropped EXE 1 IoCs

pid	Process
4856	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	MacrosEffect.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 6 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	MacrosEffect.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4856	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4204	MacrosEffect.exe
Token: SeSecurityPrivilege	4204	MacrosEffect.exe
Token: SeTakeOwnershipPrivilege	4204	MacrosEffect.exe
Token: SeLoadDriverPrivilege	4204	MacrosEffect.exe
Token: SeSystemProfilePrivilege	4204	MacrosEffect.exe
Token: SeSystemtimePrivilege	4204	MacrosEffect.exe
Token: SeProfSingleProcessPrivilege	4204	MacrosEffect.exe
Token: SeIncBasePriorityPrivilege	4204	MacrosEffect.exe
Token: SeCreatePagefilePrivilege	4204	MacrosEffect.exe
Token: SeBackupPrivilege	4204	MacrosEffect.exe
Token: SeRestorePrivilege	4204	MacrosEffect.exe
Token: SeShutdownPrivilege	4204	MacrosEffect.exe
Token: SeDebugPrivilege	4204	MacrosEffect.exe
Token: SeSystemEnvironmentPrivilege	4204	MacrosEffect.exe
Token: SeChangeNotifyPrivilege	4204	MacrosEffect.exe
Token: SeRemoteShutdownPrivilege	4204	MacrosEffect.exe
Token: SeUndockPrivilege	4204	MacrosEffect.exe
Token: SeManageVolumePrivilege	4204	MacrosEffect.exe
Token: SeImpersonatePrivilege	4204	MacrosEffect.exe
Token: SeCreateGlobalPrivilege	4204	MacrosEffect.exe
Token: 33	4204	MacrosEffect.exe
Token: 34	4204	MacrosEffect.exe
Token: 35	4204	MacrosEffect.exe
Token: 36	4204	MacrosEffect.exe
Token: SeIncreaseQuotaPrivilege	4856	msdcsc.exe
Token: SeSecurityPrivilege	4856	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4856	msdcsc.exe
Token: SeLoadDriverPrivilege	4856	msdcsc.exe
Token: SeSystemProfilePrivilege	4856	msdcsc.exe
Token: SeSystemtimePrivilege	4856	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4856	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4856	msdcsc.exe
Token: SeCreatePagefilePrivilege	4856	msdcsc.exe
Token: SeBackupPrivilege	4856	msdcsc.exe
Token: SeRestorePrivilege	4856	msdcsc.exe
Token: SeShutdownPrivilege	4856	msdcsc.exe
Token: SeDebugPrivilege	4856	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4856	msdcsc.exe
Token: SeChangeNotifyPrivilege	4856	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4856	msdcsc.exe
Token: SeUndockPrivilege	4856	msdcsc.exe
Token: SeManageVolumePrivilege	4856	msdcsc.exe
Token: SeImpersonatePrivilege	4856	msdcsc.exe
Token: SeCreateGlobalPrivilege	4856	msdcsc.exe
Token: 33	4856	msdcsc.exe
Token: 34	4856	msdcsc.exe
Token: 35	4856	msdcsc.exe
Token: 36	4856	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4856	msdcsc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 1372	4204	MacrosEffect.exe	82
PID 4204 wrote to memory of 1372	4204	MacrosEffect.exe	82
PID 4204 wrote to memory of 1372	4204	MacrosEffect.exe	82
PID 4204 wrote to memory of 4504	4204	MacrosEffect.exe	84
PID 4204 wrote to memory of 4504	4204	MacrosEffect.exe	84
PID 4204 wrote to memory of 4504	4204	MacrosEffect.exe	84
PID 4204 wrote to memory of 4856	4204	MacrosEffect.exe	86
PID 4204 wrote to memory of 4856	4204	MacrosEffect.exe	86
PID 4204 wrote to memory of 4856	4204	MacrosEffect.exe	86
PID 1372 wrote to memory of 2892	1372	cmd.exe	87
PID 1372 wrote to memory of 2892	1372	cmd.exe	87
PID 1372 wrote to memory of 2892	1372	cmd.exe	87
PID 4504 wrote to memory of 2452	4504	cmd.exe	88
PID 4504 wrote to memory of 2452	4504	cmd.exe	88
PID 4504 wrote to memory of 2452	4504	cmd.exe	88

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2892	attrib.exe
2452	attrib.exe

C:\Users\Admin\AppData\Local\Temp\MacrosEffect.exe
"C:\Users\Admin\AppData\Local\Temp\MacrosEffect.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:4204
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\MacrosEffect.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1372
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\MacrosEffect.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2892
- 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:4504
- - 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:2452
- C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4856

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\Roaming\MSDCSC\msdcsc.exe

Filesize
764KB

MD5
7a7e5cb7dc74661297d6d5ebd0f52c8b

SHA1
2f3ca679fca85f0c5bbf5382d33d81bc1a07ebce

SHA256
1b379086ce32f6939586398021a8a92c66d31a5ed64a7af9739b8ae2229e21d0

SHA512
626ac48dc0d59e663d9b16bbb9fd414c60780a69b97d0f26b94a473982eb8b3c8ae70ea47eeaf43e91295457c6ca255650fb28166d9864a6bd7653ca304e428f

Download Submit
memory/4204-15-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4204-0-0x0000000002410000-0x0000000002411000-memory.dmp

Filesize
4KB

Download
memory/4856-20-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-22-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-17-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-18-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-19-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-14-0x0000000002180000-0x0000000002181000-memory.dmp

Filesize
4KB

Download
memory/4856-21-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-16-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-23-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-24-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-25-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-26-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-27-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-28-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/4856-29-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads