darkcomet | df3f0e1cbff0df311e1d49f45455c557c1602cff5ed602792477eafff580d139

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17/03/2025, 10:06

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General

Target

JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe
Size

716KB
MD5

7dc6bfdb54d5e1cdf7208106fe2c2491
SHA1

91262b827d7e60b03d1bd487763fb5849bdab019
SHA256

df3f0e1cbff0df311e1d49f45455c557c1602cff5ed602792477eafff580d139
SHA512

bfb0eaaeb4ca5a10f31eb22b96e8c0ce8a975a006c73dbcfc2a7275323e5065bcc7df9860c43b779a1cfb0649c914ee312528356750c85632aadcaba79c6313f
SSDEEP

12288:lcOl59OsbsNOssoSTlDf1dFJ/gvhPcyQ1dgrQGFjC1C:lll5xsNJoj1d34pHQnQQOjEC

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Attributes

gencode
install
false
offline_keylogger
false
persistence
false

rc4.plain

Extracted

Family

darkcomet

Botnet

Guest16

jakeyboy159.no-ip.org:1414

Mutex

DC_MUTEX-BQWSV5E

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
Wb2K7x0aYnY5
install
true
offline_keylogger
true
persistence
true
reg_key
rundll32

rc4.plain

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"	vbc.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2820	attrib.exe
2560	attrib.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\{Binda}.exe	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\{Binda}.exe	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe

Executes dropped EXE 1 IoCs

pid	Process
2592	msdcsc.exe

Loads dropped DLL 1 IoCs

pid	Process
2748	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2252 set thread context of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30

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 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	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2748	vbc.exe
Token: SeSecurityPrivilege	2748	vbc.exe
Token: SeTakeOwnershipPrivilege	2748	vbc.exe
Token: SeLoadDriverPrivilege	2748	vbc.exe
Token: SeSystemProfilePrivilege	2748	vbc.exe
Token: SeSystemtimePrivilege	2748	vbc.exe
Token: SeProfSingleProcessPrivilege	2748	vbc.exe
Token: SeIncBasePriorityPrivilege	2748	vbc.exe
Token: SeCreatePagefilePrivilege	2748	vbc.exe
Token: SeBackupPrivilege	2748	vbc.exe
Token: SeRestorePrivilege	2748	vbc.exe
Token: SeShutdownPrivilege	2748	vbc.exe
Token: SeDebugPrivilege	2748	vbc.exe
Token: SeSystemEnvironmentPrivilege	2748	vbc.exe
Token: SeChangeNotifyPrivilege	2748	vbc.exe
Token: SeRemoteShutdownPrivilege	2748	vbc.exe
Token: SeUndockPrivilege	2748	vbc.exe
Token: SeManageVolumePrivilege	2748	vbc.exe
Token: SeImpersonatePrivilege	2748	vbc.exe
Token: SeCreateGlobalPrivilege	2748	vbc.exe
Token: 33	2748	vbc.exe
Token: 34	2748	vbc.exe
Token: 35	2748	vbc.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2252 wrote to memory of 2748	2252	JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe	30
PID 2748 wrote to memory of 2584	2748	vbc.exe	31
PID 2748 wrote to memory of 2584	2748	vbc.exe	31
PID 2748 wrote to memory of 2584	2748	vbc.exe	31
PID 2748 wrote to memory of 2584	2748	vbc.exe	31
PID 2748 wrote to memory of 2228	2748	vbc.exe	32
PID 2748 wrote to memory of 2228	2748	vbc.exe	32
PID 2748 wrote to memory of 2228	2748	vbc.exe	32
PID 2748 wrote to memory of 2228	2748	vbc.exe	32
PID 2584 wrote to memory of 2820	2584	cmd.exe	35
PID 2584 wrote to memory of 2820	2584	cmd.exe	35
PID 2584 wrote to memory of 2820	2584	cmd.exe	35
PID 2584 wrote to memory of 2820	2584	cmd.exe	35
PID 2228 wrote to memory of 2560	2228	cmd.exe	36
PID 2228 wrote to memory of 2560	2228	cmd.exe	36
PID 2228 wrote to memory of 2560	2228	cmd.exe	36
PID 2228 wrote to memory of 2560	2228	cmd.exe	36
PID 2748 wrote to memory of 2592	2748	vbc.exe	37
PID 2748 wrote to memory of 2592	2748	vbc.exe	37
PID 2748 wrote to memory of 2592	2748	vbc.exe	37
PID 2748 wrote to memory of 2592	2748	vbc.exe	37

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2560	attrib.exe
2820	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7dc6bfdb54d5e1cdf7208106fe2c2491.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- 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:2748
- - 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:2584
  - - 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:2820
- - 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:2228
  - - 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:2560
- - C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
    "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2592

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/2252-19-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2252-1-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2252-2-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2252-0-0x0000000074281000-0x0000000074282000-memory.dmp

Filesize
4KB

Download
memory/2748-11-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-7-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-20-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-9-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2748-4-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-12-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-3-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-22-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-5-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2748-32-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads