Analysis

  • max time kernel
    299s
  • max time network
    184s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 03:27

General

  • Target

    f31bfe95e31d761459b885052d35ba5e25ab19333378fb72b12efd675f6018d7_.exe

  • Size

    689KB

  • MD5

    0aa0397edc45cc08dd005a73f707fec5

  • SHA1

    7c1319364fe39580d9f0a928a6f6dc593f425528

  • SHA256

    f31bfe95e31d761459b885052d35ba5e25ab19333378fb72b12efd675f6018d7

  • SHA512

    5766cd40e76bb48233649ecdebf31449020b65146a6e90cc9fa97651f73a3bbd13be2791fcf47c9bba8e158f21d304fa087c8d6dc5c1d53be96c107fa84e6e32

  • SSDEEP

    12288:yHesdPT6mID+Nscf3SDEmaBY2sWevYKrQaUeSSU8g+HnCPMmq8:o4DbcvqEmay2sIaUJig/T

Malware Config

Signatures

  • Renames multiple (51) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Kills process with taskkill 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 31 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f31bfe95e31d761459b885052d35ba5e25ab19333378fb72b12efd675f6018d7_.exe
    "C:\Users\Admin\AppData\Local\Temp\f31bfe95e31d761459b885052d35ba5e25ab19333378fb72b12efd675f6018d7_.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3068
    • C:\Users\Admin\AppData\Local\Microsoft\pacman.exe
      C:\Users\Admin\AppData\Local\Microsoft\\pacman.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2564
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /IM explorer.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2824

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\pacman.exe

    Filesize

    82KB

    MD5

    6464e51a6ee9d8ee9fad33430c24ecab

    SHA1

    fdca62379b1d54d85746cbb228a0d981376ec2f5

    SHA256

    68931ef9cf810d5a69d8ebf33155db7845fffcc685b1ae9f0670803bb97228cc

    SHA512

    313dc913dd5b769954d8df68290a8b6b44a8a3f271aec9cb00b44fdcf78e6f1c50542fb755cec61ef5965406acea9cdfe5856fd5f64af6f0f05ff2cc84be0790

  • memory/2564-10-0x0000000074C00000-0x00000000752EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2564-88-0x0000000074C00000-0x00000000752EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2564-14-0x0000000074C00000-0x00000000752EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2564-11-0x00000000003F0000-0x000000000040C000-memory.dmp

    Filesize

    112KB

  • memory/3068-3-0x0000000074C00000-0x00000000752EE000-memory.dmp

    Filesize

    6.9MB

  • memory/3068-0-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

    Filesize

    4KB

  • memory/3068-2-0x0000000074C00000-0x00000000752EE000-memory.dmp

    Filesize

    6.9MB

  • memory/3068-15-0x0000000074C00000-0x00000000752EE000-memory.dmp

    Filesize

    6.9MB

  • memory/3068-73-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

    Filesize

    4KB

  • memory/3068-74-0x0000000074C00000-0x00000000752EE000-memory.dmp

    Filesize

    6.9MB

  • memory/3068-87-0x0000000074C00000-0x00000000752EE000-memory.dmp

    Filesize

    6.9MB

  • memory/3068-1-0x00000000008D0000-0x0000000000982000-memory.dmp

    Filesize

    712KB

  • memory/3068-89-0x0000000074C00000-0x00000000752EE000-memory.dmp

    Filesize

    6.9MB