Analysis
- max time kernel
142s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
10/08/2024, 08:46
General
- Target 85782e45fe5f92302b356734455cac1b_JaffaCakes118.exe
- Size 1.2MB
- Sample240810-kpmh9ssfpl
- SHA256 d1fc367bb97aea142988f5e754238ca6c72bbbc0e03be671fcee1c1de771c1e8
Malware Config
Extracted
-
darkcomet
-
Test
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127.0.0.1:1012
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192.168.0.13:1012
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82.233.104.4:1012
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loulou38.no-ip.biz:1012
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DC_MUTEX-GE5MLRJ
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gencode
KLPFZNEAS3Dj
-
install
true
-
offline_keylogger
true
-
persistence
true
-
reg_key
iexplorer
Signatures
- Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- Modifies security service 2 TTPs 1 IoCs
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Disables RegEdit via registry modification 1 IoCs
- Disables Task Manager via registry modification
- Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
- Adds Run key to start application 2 TTPs 1 IoCs
- Drops file in System32 directory 3 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 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 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 24 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
- System policy modification 1 TTPs 3 IoCs
- Views/modifies file attributes 1 TTPs 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\85782e45fe5f92302b356734455cac1b_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\85782e45fe5f92302b356734455cac1b_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Modifies security service
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Disables RegEdit via registry modification
- Checks computer location settings
- Identifies Wine through registry keys
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\85782e45fe5f92302b356734455cac1b_JaffaCakes118.exe" +s +h2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\85782e45fe5f92302b356734455cac1b_JaffaCakes118.exe" +s +h3⤵
- Sets file to hidden
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
-
-
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- Sets file to hidden
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
-
-
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Modify Registry
4Virtualization/Sandbox Evasion
2Replay Monitor
Loading Replay Monitor...
Downloads
memory/3652-0-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-1-0x0000000077124000-0x0000000077126000-memory.dmp
memory/3652-2-0x0000000000401000-0x000000000044F000-memory.dmp
memory/3652-3-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-5-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-4-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-6-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-7-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-8-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-9-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-10-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-11-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-12-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-13-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-14-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-15-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-16-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-17-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-18-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-19-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-20-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-21-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-22-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-23-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-24-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-25-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-26-0x0000000000400000-0x00000000006B3000-memory.dmp
memory/3652-27-0x0000000000400000-0x00000000006B3000-memory.dmp