Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
09/08/2024, 22:55
General
- Target 83e0ddac12acdb27da50f5dced06226f_JaffaCakes118.exe
- Size 350KB
- Sample240809-2v9z7axera
- SHA256 61e7b3bb8058709bee55672ac85b66b083baeae7235d5016fcddeed5c6917db9
Malware Config
Extracted
-
darkcomet
-
Guest16
-
abod12345.no-ip.info:999
-
DC_MUTEX-VJQ8V8D
-
InstallPath
MSDCSC\msdcsc.exe
-
gencode
3VJFaguAC0JG
-
install
true
-
offline_keylogger
true
-
persistence
false
-
reg_key
MicroUpdate
Signatures
- Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- UPX packed file 18 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 1 IoCs
- Suspicious use of AdjustPrivilegeToken 48 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\83e0ddac12acdb27da50f5dced06226f_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\83e0ddac12acdb27da50f5dced06226f_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe"C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Replay Monitor
Loading Replay Monitor...
Downloads
msdcsc.exe
memory/2596-63-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/2596-1-0x00000000022B0000-0x00000000022B1000-memory.dmp
memory/2596-0-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-69-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-70-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-65-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-66-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-67-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-68-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-62-0x00000000006A0000-0x00000000006A1000-memory.dmp
memory/4112-64-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-71-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-72-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-73-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-74-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-75-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-76-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-77-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4112-78-0x0000000000400000-0x00000000004EB000-memory.dmp