Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/07/2026, 06:33

General

  • Target
    cjzg_mayiyx.exe
  • Size 1.6MB
  • Sample260730-hbbhqssdlf
  • SHA256 bd13bb6efcd97c394f87c31e54856ccf6415c023beb5e2cc32fa5f15e5ae6d9e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cjzg_mayiyx.exe
    "C:\Users\Admin\AppData\Local\Temp\cjzg_mayiyx.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4976
    • C:\Users\Admin\AppData\Roaming\mayiyx\cjzg\cjzg.exe
      "C:\Users\Admin\AppData\Roaming\mayiyx\cjzg\cjzg.exe" /autorun /setuprun
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:2720

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        FindProcDLL.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nslF8B5.tmp\FindProcDLL.dll
        • Size 3KB
        • SHA256 0fa04f06a6de18d316832086891e9c23ae606d7784d5d5676385839b21ca2758
        • MD5 SHA1 SHA512 TLSH

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nslF8B5.tmp\System.dll
        • Size 10KB
        • SHA256 bb6df93369b498eaa638b0bcdc4bb89f45e9b02ca12d28bcedf4629ea7f5e0f1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Lander.ini

        • Path C:\Users\Admin\AppData\Roaming\mayiyx\cjzg\Lander.ini
        • Size 405B
        • SHA256 6e00a26c5756db57383d47f34527bbd0ae539684072451d940821f10e2c12055
        • MD5 SHA1 SHA512 TLSH

        cjzg.exe

        • Path C:\Users\Admin\AppData\Roaming\mayiyx\cjzg\cjzg.exe
        • Size 1.5MB
        • SHA256 1f44355cfdb780d281973d0e84d667ef6a78185779c018aab2329f377de607b5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        lander.ini

        • Path C:\Users\Admin\AppData\Roaming\mayiyx\cjzg\lander.ini
        • Size 374B
        • SHA256 555d7a8fb9670076ebf69addc31c62042d155b9ac3fc3363b36f823898f0053c
        • MD5 SHA1 SHA512 TLSH

        memory/2720-71-0x0000000002D40000-0x0000000002D41000-memory.dmp

        memory/2720-64-0x0000000002D40000-0x0000000002D41000-memory.dmp

        memory/4976-53-0x0000000002301000-0x0000000002302000-memory.dmp

        memory/4976-51-0x0000000002300000-0x0000000002303000-memory.dmp

        memory/4976-50-0x0000000002301000-0x0000000002302000-memory.dmp

        memory/4976-49-0x0000000002300000-0x0000000002303000-memory.dmp

        memory/4976-48-0x0000000002300000-0x0000000002303000-memory.dmp

        memory/4976-52-0x0000000002300000-0x0000000002303000-memory.dmp

        memory/4976-14-0x0000000002300000-0x0000000002303000-memory.dmp

        memory/4976-15-0x0000000002301000-0x0000000002302000-memory.dmp