Analysis
- max time kernel
149s - max time network
134s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
25/09/2026, 18:33
General
- Target jaffacakes118_f1429d6524a212cb55c76ca4981f0aa0f922b60308800e72325546ed83b99d77.exe
- Size 64KB
- Sample260925-w7bp9stepd
- SHA256 f1429d6524a212cb55c76ca4981f0aa0f922b60308800e72325546ed83b99d77
Malware Config
Signatures
- Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
- Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 1 IoCs
- Drops file in System32 directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- 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 6 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_f1429d6524a212cb55c76ca4981f0aa0f922b60308800e72325546ed83b99d77.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_f1429d6524a212cb55c76ca4981f0aa0f922b60308800e72325546ed83b99d77.exe"1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SelfDel.bat" "2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1AppInit DLLs
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1AppInit DLLs
1Replay Monitor
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Downloads
SelfDel.bat
fjmiodka.dll
memory/1796-26-0x0000000000BF0000-0x0000000000BF1000-memory.dmp
memory/1796-1-0x00000000004C0000-0x00000000004C1000-memory.dmp
memory/1796-4-0x00000000005C0000-0x00000000005C1000-memory.dmp
memory/1796-5-0x0000000000450000-0x0000000000451000-memory.dmp
memory/1796-6-0x0000000000620000-0x0000000000621000-memory.dmp
memory/1796-10-0x0000000000660000-0x0000000000661000-memory.dmp
memory/1796-9-0x00000000005E0000-0x00000000005E1000-memory.dmp
memory/1796-24-0x0000000000BE0000-0x0000000000BE1000-memory.dmp
memory/1796-25-0x00000000004A0000-0x00000000004A1000-memory.dmp
memory/1796-21-0x0000000000650000-0x0000000000651000-memory.dmp
memory/1796-3-0x00000000004D0000-0x00000000004D1000-memory.dmp
memory/1796-0-0x0000000000400000-0x0000000000413000-memory.dmp
memory/1796-7-0x0000000000420000-0x0000000000421000-memory.dmp
memory/1796-23-0x0000000000C30000-0x0000000000C31000-memory.dmp
memory/1796-22-0x0000000000670000-0x0000000000671000-memory.dmp
memory/1796-20-0x0000000000460000-0x0000000000461000-memory.dmp
memory/1796-18-0x0000000000BD0000-0x0000000000BD1000-memory.dmp
memory/1796-17-0x00000000005D0000-0x00000000005D1000-memory.dmp
memory/1796-16-0x00000000005F0000-0x00000000005F1000-memory.dmp
memory/1796-15-0x0000000000680000-0x0000000000681000-memory.dmp
memory/1796-11-0x0000000000440000-0x0000000000441000-memory.dmp
memory/1796-29-0x0000000000400000-0x0000000000413000-memory.dmp
memory/1796-2-0x0000000000600000-0x0000000000601000-memory.dmp