Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    30-10-2024 19:05

General

  • Target

    boltchecker.pyc

  • Size

    239KB

  • MD5

    251fbdc89d2e7e1caeccbd006e5ee89c

  • SHA1

    eb08bb07177e8785accb4e72230c2f78416c560e

  • SHA256

    92b59ba79341ed9bdd5b7c7b76c027a898255e6ec518198283f8698431dc9b70

  • SHA512

    b9c6a17d47bb601aa8946592e06cc77271955a69c831fb252401cd0c90a842ce3b28f3672d28797dbc8bdfe37bee3cd50b60cef6c5637a6fc26d97c04740d03b

  • SSDEEP

    3072:JmLzPvNjhyltG43ILbd/x0GhhegKoXoH9E4XV2jKZ:JmLDrp0xUhegKoXoH9E4XV2jS

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\boltchecker.pyc
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\boltchecker.pyc
      2⤵
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2720
      • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
        "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\boltchecker.pyc"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:2764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

    Filesize

    3KB

    MD5

    0701261a3312e6801054ef15e114d097

    SHA1

    70a0c1fe1955786f00e4d6964a46fd1e34982f76

    SHA256

    cec6f65db6c6f36d94a4a23221fde3aabe673dd2b73c11d129fe10ac3cceb8d7

    SHA512

    91e65467b47e7cc543f4e97772087c754af8978ef5b6e2393772ca9030f84b5cab801e42700a34078b159980da5935d07095d36837c56b82bb7fd30f625a2635