darkcomet | 80e3e57fb6aada9da17a4474b3a871e61ceb24053ce295405912498af6cf75f4

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 15:44

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General

Target

JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe
Size

729KB
MD5

7a803f896396793f1c310e37ccd75830
SHA1

eff35c28bb048731602355687d71b8b09ca9fa11
SHA256

80e3e57fb6aada9da17a4474b3a871e61ceb24053ce295405912498af6cf75f4
SHA512

e94700e5635248cad7a79b9a8032b68df1b0d60e970fd8b901f2be0616777a66d41e6d81d65405e8d5d823a8dd1155bfc9bb8224bfc0539b9bcc54d1a2e2c83d
SSDEEP

12288:D2vRcIdCtImmDcwvxPnHnuKMM1SSqkV+MrEljp1KAGJpx:iZZCIDvxPHnvX1A/M4Zp1Gj

Score

10^/10

darkcomet ab rio int discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

AB Rio INT

facebookmsg.no-ip.org:666

Mutex

DC_MUTEX-ZNC3EV6

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
0HzX5u7cZVK1
install
true
offline_keylogger
true
password
SUN123
persistence
true
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:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	vbc.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
2876	attrib.exe
2768	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2688	msdcsc.exe

Loads dropped DLL 1 IoCs

pid	Process
2104	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\msconfig = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\System\\Services\\msconfig.exe"	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2352 set thread context of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe	attrib.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework\v2.0.50727	attrib.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	notepad.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	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe
2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe
2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe
2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe
2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe
2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe
2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe
Token: SeIncreaseQuotaPrivilege	2104	vbc.exe
Token: SeSecurityPrivilege	2104	vbc.exe
Token: SeTakeOwnershipPrivilege	2104	vbc.exe
Token: SeLoadDriverPrivilege	2104	vbc.exe
Token: SeSystemProfilePrivilege	2104	vbc.exe
Token: SeSystemtimePrivilege	2104	vbc.exe
Token: SeProfSingleProcessPrivilege	2104	vbc.exe
Token: SeIncBasePriorityPrivilege	2104	vbc.exe
Token: SeCreatePagefilePrivilege	2104	vbc.exe
Token: SeBackupPrivilege	2104	vbc.exe
Token: SeRestorePrivilege	2104	vbc.exe
Token: SeShutdownPrivilege	2104	vbc.exe
Token: SeDebugPrivilege	2104	vbc.exe
Token: SeSystemEnvironmentPrivilege	2104	vbc.exe
Token: SeChangeNotifyPrivilege	2104	vbc.exe
Token: SeRemoteShutdownPrivilege	2104	vbc.exe
Token: SeUndockPrivilege	2104	vbc.exe
Token: SeManageVolumePrivilege	2104	vbc.exe
Token: SeImpersonatePrivilege	2104	vbc.exe
Token: SeCreateGlobalPrivilege	2104	vbc.exe
Token: 33	2104	vbc.exe
Token: 34	2104	vbc.exe
Token: 35	2104	vbc.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2352 wrote to memory of 2104	2352	JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe	31
PID 2104 wrote to memory of 2784	2104	vbc.exe	32
PID 2104 wrote to memory of 2784	2104	vbc.exe	32
PID 2104 wrote to memory of 2784	2104	vbc.exe	32
PID 2104 wrote to memory of 2784	2104	vbc.exe	32
PID 2104 wrote to memory of 2380	2104	vbc.exe	34
PID 2104 wrote to memory of 2380	2104	vbc.exe	34
PID 2104 wrote to memory of 2380	2104	vbc.exe	34
PID 2104 wrote to memory of 2380	2104	vbc.exe	34
PID 2784 wrote to memory of 2876	2784	cmd.exe	37
PID 2784 wrote to memory of 2876	2784	cmd.exe	37
PID 2784 wrote to memory of 2876	2784	cmd.exe	37
PID 2784 wrote to memory of 2876	2784	cmd.exe	37
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2104 wrote to memory of 2252	2104	vbc.exe	36
PID 2380 wrote to memory of 2768	2380	cmd.exe	38
PID 2380 wrote to memory of 2768	2380	cmd.exe	38
PID 2380 wrote to memory of 2768	2380	cmd.exe	38
PID 2380 wrote to memory of 2768	2380	cmd.exe	38
PID 2104 wrote to memory of 2688	2104	vbc.exe	39
PID 2104 wrote to memory of 2688	2104	vbc.exe	39
PID 2104 wrote to memory of 2688	2104	vbc.exe	39
PID 2104 wrote to memory of 2688	2104	vbc.exe	39

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2876	attrib.exe
2768	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a803f896396793f1c310e37ccd75830.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - 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:2104
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2784
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h
      4⤵
      Sets file to hidden
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2876
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2380
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h
      4⤵
      Sets file to hidden
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2768
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2252
- - C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
    "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/2104-8-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2104-5-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-11-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-3-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-9-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-51-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-20-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-24-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2104-26-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2252-44-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/2252-30-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2352-0-0x0000000074DA1000-0x0000000074DA2000-memory.dmp

Filesize
4KB

Download
memory/2352-1-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2352-2-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download
memory/2352-25-0x0000000074DA0000-0x000000007534B000-memory.dmp

Filesize
5.7MB

Download