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Analysis

  • max time kernel
    119s
  • max time network
    114s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/09/2024, 01:36

General

  • Target

    3e03423403b24dd67b75eca7f506291c7a82b111554a30ffdb095c0e4a69f99eN.exe

  • Size

    252KB

  • MD5

    ad9681528119d95bc284cce4c18c0a90

  • SHA1

    fd727d047a28c65f639e595eca7e153f8d404df8

  • SHA256

    3e03423403b24dd67b75eca7f506291c7a82b111554a30ffdb095c0e4a69f99e

  • SHA512

    5ab174e9d428dd99294f899848bed6c7c1bb2c70e7603f44cc2b4b821f7a697a15f2ccc5ded0cca53ffa512d5185b437a974dca33d24f71b0eefca6a000406fb

  • SSDEEP

    6144:H3amGHIU6Pr7FXlbWc3PuV/rvGXUf39GZjJ21OhCJiviq2YWDppQ7zJ:H3BPr7FXlbWc3PuV/r+XUf39GZjJ21Oh

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 51 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3e03423403b24dd67b75eca7f506291c7a82b111554a30ffdb095c0e4a69f99eN.exe
    "C:\Users\Admin\AppData\Local\Temp\3e03423403b24dd67b75eca7f506291c7a82b111554a30ffdb095c0e4a69f99eN.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:868
    • C:\Users\Admin\xiaasib.exe
      "C:\Users\Admin\xiaasib.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3488

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\xiaasib.exe

    Filesize

    252KB

    MD5

    68cac006a824893554ab8d9e87ed3c47

    SHA1

    0e9fad410f000dd32d1085a8eaab3eaf8cabe4fd

    SHA256

    63acff1ca1e05b90db7301ac26b8e58503f00f48684d50af956568ed816f18ae

    SHA512

    f79d212e27c9054f6b335ffe07147d88a10a7294cfd821e9eb97e56b0366d0df663d8857344bac7a23cf7e6d6f88e53c08f707f777be9718b38149c0bbc1423c

  • memory/868-0-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/868-37-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3488-33-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3488-38-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB