darkcomet | dd854470625e083c3c2c03f54b0298d9f1afdbf2b6ada4eba2cf75178a33ec48

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 06:09

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General

Target

yara_detected/047.exe
Size

658KB
MD5

c4f06737fcaa716b4ec8c5c77bd77122
SHA1

144c8605ab71e8f81caac744febc9f441a5fb75b
SHA256

a0f93fe83d4863032eed437e0e6a86ddd8d5987e12b714232df192bfbb6c04fa
SHA512

27ffe180e83808cbc4260044966715e1b3cbb0278840b274739fed6ac49f55eb09e841eb5392a0736c0e232729deb24e7d74ce430d11ee475801faec2a739d01
SSDEEP

12288:y9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hq:eZ1xuVVjfFoynPaVBUR8f+kN10EBk

Score

10^/10

darkcomet freddox discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

freddox

freddox.no-ip.info:1604

Mutex

DC_MUTEX-G24FNBR

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
Q2dwRiSC77Ri
install
true
offline_keylogger
true
persistence
true
reg_key
winlogon

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:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	047.exe

Executes dropped EXE 1 IoCs

pid	Process
2544	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
592	047.exe
592	047.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	047.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	047.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	047.exe
File created	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	047.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 3 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	047.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2544	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	592	047.exe
Token: SeSecurityPrivilege	592	047.exe
Token: SeTakeOwnershipPrivilege	592	047.exe
Token: SeLoadDriverPrivilege	592	047.exe
Token: SeSystemProfilePrivilege	592	047.exe
Token: SeSystemtimePrivilege	592	047.exe
Token: SeProfSingleProcessPrivilege	592	047.exe
Token: SeIncBasePriorityPrivilege	592	047.exe
Token: SeCreatePagefilePrivilege	592	047.exe
Token: SeBackupPrivilege	592	047.exe
Token: SeRestorePrivilege	592	047.exe
Token: SeShutdownPrivilege	592	047.exe
Token: SeDebugPrivilege	592	047.exe
Token: SeSystemEnvironmentPrivilege	592	047.exe
Token: SeChangeNotifyPrivilege	592	047.exe
Token: SeRemoteShutdownPrivilege	592	047.exe
Token: SeUndockPrivilege	592	047.exe
Token: SeManageVolumePrivilege	592	047.exe
Token: SeImpersonatePrivilege	592	047.exe
Token: SeCreateGlobalPrivilege	592	047.exe
Token: 33	592	047.exe
Token: 34	592	047.exe
Token: 35	592	047.exe
Token: SeIncreaseQuotaPrivilege	2544	msdcsc.exe
Token: SeSecurityPrivilege	2544	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2544	msdcsc.exe
Token: SeLoadDriverPrivilege	2544	msdcsc.exe
Token: SeSystemProfilePrivilege	2544	msdcsc.exe
Token: SeSystemtimePrivilege	2544	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2544	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2544	msdcsc.exe
Token: SeCreatePagefilePrivilege	2544	msdcsc.exe
Token: SeBackupPrivilege	2544	msdcsc.exe
Token: SeRestorePrivilege	2544	msdcsc.exe
Token: SeShutdownPrivilege	2544	msdcsc.exe
Token: SeDebugPrivilege	2544	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2544	msdcsc.exe
Token: SeChangeNotifyPrivilege	2544	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2544	msdcsc.exe
Token: SeUndockPrivilege	2544	msdcsc.exe
Token: SeManageVolumePrivilege	2544	msdcsc.exe
Token: SeImpersonatePrivilege	2544	msdcsc.exe
Token: SeCreateGlobalPrivilege	2544	msdcsc.exe
Token: 33	2544	msdcsc.exe
Token: 34	2544	msdcsc.exe
Token: 35	2544	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2544	msdcsc.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 592 wrote to memory of 2544	592	047.exe	30
PID 592 wrote to memory of 2544	592	047.exe	30
PID 592 wrote to memory of 2544	592	047.exe	30
PID 592 wrote to memory of 2544	592	047.exe	30
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31
PID 2544 wrote to memory of 2252	2544	msdcsc.exe	31

C:\Users\Admin\AppData\Local\Temp\yara_detected\047.exe
"C:\Users\Admin\AppData\Local\Temp\yara_detected\047.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:592
- C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
  "C:\Windows\system32\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:2544
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2252

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

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

\Windows\SysWOW64\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
c4f06737fcaa716b4ec8c5c77bd77122

SHA1
144c8605ab71e8f81caac744febc9f441a5fb75b

SHA256
a0f93fe83d4863032eed437e0e6a86ddd8d5987e12b714232df192bfbb6c04fa

SHA512
27ffe180e83808cbc4260044966715e1b3cbb0278840b274739fed6ac49f55eb09e841eb5392a0736c0e232729deb24e7d74ce430d11ee475801faec2a739d01

Download Submit
memory/592-39-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/592-0-0x00000000004E0000-0x00000000004E1000-memory.dmp

Filesize
4KB

Download
memory/2252-38-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2252-13-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2544-44-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-46-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-41-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-42-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-43-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-11-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2544-45-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-40-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-47-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-48-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-49-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-50-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-51-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-52-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2544-53-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads