Analysis

  • max time kernel
    149s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    09/10/2026, 18:01

General

  • Target
    jaffacakes118_Trojan-Dropper.Win32.Delf.ac.exe
  • Size 407KB
  • Sample261009-wmddcsdc67
  • SHA256 646e3806e97cb30657035823db44291d2f82d4c716d4ffb2e0b4841f89030df6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 4 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Delf.ac.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Delf.ac.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4496
    • C:\Windows\w32sys.exe
      C:\Windows\w32sys.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2100
      • C:\Windows\bnc.exe
        C:\Windows\bnc.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1300
  • C:\Windows\w32sys.exe
    C:\Windows\w32sys.exe
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3744
    • C:\Windows\bnc.exe
      C:\Windows\bnc.exe
      2⤵
      • Executes dropped EXE
      PID:3608

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        bnc.exe

        • Path C:\Windows\bnc.exe
        • Size 48KB
        • SHA256 47ba673f747083382e7a03b97ac1177e86a6c3b7f242b51c9d021213c75c37ff
        • MD5 SHA1 SHA512 SSDEEP TLSH

        w32sys.exe

        • Path C:\Windows\w32sys.exe
        • Size 407KB
        • SHA256 646e3806e97cb30657035823db44291d2f82d4c716d4ffb2e0b4841f89030df6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2100-7-0x0000000000400000-0x000000000046C000-memory.dmp

        memory/2100-6-0x0000000000400000-0x000000000046C000-memory.dmp

        memory/2100-17-0x0000000000400000-0x000000000046C000-memory.dmp

        memory/3744-14-0x0000000000400000-0x000000000046C000-memory.dmp

        memory/3744-19-0x0000000000400000-0x000000000046C000-memory.dmp

        memory/4496-0-0x0000000000730000-0x0000000000731000-memory.dmp

        memory/4496-1-0x000000000044F000-0x0000000000450000-memory.dmp

        memory/4496-16-0x0000000000400000-0x000000000046C000-memory.dmp