darkcomet | f0a438984aa2feb5b737431f2ecc278052e00c9d7bccdf34ae7a8f9ac3b32b7d

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
2724	attrib.exe
2736	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2248	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2332	MacrosEffect.exe
2332	MacrosEffect.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-1-5-21-2872745919-2748461613-2989606286-1000\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	msdcsc.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2248	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2332	MacrosEffect.exe
Token: SeSecurityPrivilege	2332	MacrosEffect.exe
Token: SeTakeOwnershipPrivilege	2332	MacrosEffect.exe
Token: SeLoadDriverPrivilege	2332	MacrosEffect.exe
Token: SeSystemProfilePrivilege	2332	MacrosEffect.exe
Token: SeSystemtimePrivilege	2332	MacrosEffect.exe
Token: SeProfSingleProcessPrivilege	2332	MacrosEffect.exe
Token: SeIncBasePriorityPrivilege	2332	MacrosEffect.exe
Token: SeCreatePagefilePrivilege	2332	MacrosEffect.exe
Token: SeBackupPrivilege	2332	MacrosEffect.exe
Token: SeRestorePrivilege	2332	MacrosEffect.exe
Token: SeShutdownPrivilege	2332	MacrosEffect.exe
Token: SeDebugPrivilege	2332	MacrosEffect.exe
Token: SeSystemEnvironmentPrivilege	2332	MacrosEffect.exe
Token: SeChangeNotifyPrivilege	2332	MacrosEffect.exe
Token: SeRemoteShutdownPrivilege	2332	MacrosEffect.exe
Token: SeUndockPrivilege	2332	MacrosEffect.exe
Token: SeManageVolumePrivilege	2332	MacrosEffect.exe
Token: SeImpersonatePrivilege	2332	MacrosEffect.exe
Token: SeCreateGlobalPrivilege	2332	MacrosEffect.exe
Token: 33	2332	MacrosEffect.exe
Token: 34	2332	MacrosEffect.exe
Token: 35	2332	MacrosEffect.exe
Token: SeIncreaseQuotaPrivilege	2248	msdcsc.exe
Token: SeSecurityPrivilege	2248	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2248	msdcsc.exe
Token: SeLoadDriverPrivilege	2248	msdcsc.exe
Token: SeSystemProfilePrivilege	2248	msdcsc.exe
Token: SeSystemtimePrivilege	2248	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2248	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2248	msdcsc.exe
Token: SeCreatePagefilePrivilege	2248	msdcsc.exe
Token: SeBackupPrivilege	2248	msdcsc.exe
Token: SeRestorePrivilege	2248	msdcsc.exe
Token: SeShutdownPrivilege	2248	msdcsc.exe
Token: SeDebugPrivilege	2248	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2248	msdcsc.exe
Token: SeChangeNotifyPrivilege	2248	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2248	msdcsc.exe
Token: SeUndockPrivilege	2248	msdcsc.exe
Token: SeManageVolumePrivilege	2248	msdcsc.exe
Token: SeImpersonatePrivilege	2248	msdcsc.exe
Token: SeCreateGlobalPrivilege	2248	msdcsc.exe
Token: 33	2248	msdcsc.exe
Token: 34	2248	msdcsc.exe
Token: 35	2248	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2248	msdcsc.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2432	2332	MacrosEffect.exe	31
PID 2332 wrote to memory of 2432	2332	MacrosEffect.exe	31
PID 2332 wrote to memory of 2432	2332	MacrosEffect.exe	31
PID 2332 wrote to memory of 2432	2332	MacrosEffect.exe	31
PID 2332 wrote to memory of 2448	2332	MacrosEffect.exe	33
PID 2332 wrote to memory of 2448	2332	MacrosEffect.exe	33
PID 2332 wrote to memory of 2448	2332	MacrosEffect.exe	33
PID 2332 wrote to memory of 2448	2332	MacrosEffect.exe	33
PID 2332 wrote to memory of 2248	2332	MacrosEffect.exe	35
PID 2332 wrote to memory of 2248	2332	MacrosEffect.exe	35
PID 2332 wrote to memory of 2248	2332	MacrosEffect.exe	35
PID 2332 wrote to memory of 2248	2332	MacrosEffect.exe	35
PID 2448 wrote to memory of 2736	2448	cmd.exe	36
PID 2448 wrote to memory of 2736	2448	cmd.exe	36
PID 2448 wrote to memory of 2736	2448	cmd.exe	36
PID 2448 wrote to memory of 2736	2448	cmd.exe	36
PID 2432 wrote to memory of 2724	2432	cmd.exe	37
PID 2432 wrote to memory of 2724	2432	cmd.exe	37
PID 2432 wrote to memory of 2724	2432	cmd.exe	37
PID 2432 wrote to memory of 2724	2432	cmd.exe	37

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2724	attrib.exe
2736	attrib.exe

C:\Users\Admin\AppData\Local\Temp\MacrosEffect.exe
"C:\Users\Admin\AppData\Local\Temp\MacrosEffect.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:2332
- 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:2432
- - 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: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:2448
- - 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:2736
- 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:2248

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\Roaming\MSDCSC\msdcsc.exe

Filesize
764KB

MD5
7a7e5cb7dc74661297d6d5ebd0f52c8b

SHA1
2f3ca679fca85f0c5bbf5382d33d81bc1a07ebce

SHA256
1b379086ce32f6939586398021a8a92c66d31a5ed64a7af9739b8ae2229e21d0

SHA512
626ac48dc0d59e663d9b16bbb9fd414c60780a69b97d0f26b94a473982eb8b3c8ae70ea47eeaf43e91295457c6ca255650fb28166d9864a6bd7653ca304e428f

Download Submit
memory/2248-19-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-16-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-20-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-15-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-21-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-17-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-18-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-22-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-28-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-13-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2248-27-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-23-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-24-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-25-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2248-26-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2332-0-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2332-14-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads