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Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    10/03/2024, 20:58

General

  • Target

    48bc784a13d9c6dfd371e9e12e8886126826750185543d94bdb2e585ad92112d.exe

  • Size

    257KB

  • MD5

    1da3c41b8f0a1a49b39b45b0e4f361cd

  • SHA1

    c89d0f754e7a552f4924e3295e569255a5206db2

  • SHA256

    48bc784a13d9c6dfd371e9e12e8886126826750185543d94bdb2e585ad92112d

  • SHA512

    38a444ccfaf7699a7367571795bf6a0d32a72a0b617751ba6af914e62d9088d766a6a05b6c7fb074d4e31ef354c715779e14cc2584d3b714e01896db6cdb7717

  • SSDEEP

    6144:F0tFwzWQx2+OMcppIRW30d+h8wZ2Uf/T11cradKtvr1K/fObT/bGipKgJJeZ4cAn:4FwtOMcppIRW3M+hwUf/Z1craduvr1Ka

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 53 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\48bc784a13d9c6dfd371e9e12e8886126826750185543d94bdb2e585ad92112d.exe
    "C:\Users\Admin\AppData\Local\Temp\48bc784a13d9c6dfd371e9e12e8886126826750185543d94bdb2e585ad92112d.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Users\Admin\yiajieb.exe
      "C:\Users\Admin\yiajieb.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2192

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\yiajieb.exe

    Filesize

    257KB

    MD5

    e60b4e0fec3560bfa509bc4d0354d90b

    SHA1

    a7177744c514d347b6a8f4d4fe0b9e6d2a399bbf

    SHA256

    96d56e5596859da3039c6d66dd57380f83e850cb7b42ca75546d080c763c54cb

    SHA512

    f1e411913e5bc7b0abad2e6137861876e7dad01fdfffa33feaf5ac790db8010be9b3db817737ab5906ac16d6a36de06596c39cf3932e527c08941247fbf2572c