Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/09/2024, 05:08

General

  • Target

    $PLUGINSDIR/nsArray.dll

  • Size

    6KB

  • MD5

    7fc4723bb0a4118e5f91047021d1aacd

  • SHA1

    092a321a21d802045105ecc8cd3c9d7d2c6da923

  • SHA256

    8f9bfeebfa3b070b116de61a63271b6c25af0dbb4bbfb4ae73e334d1f8517efd

  • SHA512

    1fe86533987ff1c4d446b231dc1ff2c3bbce224ae91b73ffead539f08740bfb06d2f40f1aedf0571106dc4e12eec27aa32018c2bf5361b7488c07b4d90800f02

  • SSDEEP

    192:EaNHOZqWdn+/a4YZkv1uULW1C4w2X2bM:EQudRQaYAU6hX

Score
7/10

Malware Config

Signatures

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Program crash 1 IoCs
  • 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.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4296
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsArray.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2668
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2668 -s 600
        3⤵
        • Program crash
        PID:1000
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2668 -ip 2668
    1⤵
      PID:3368

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2668-0-0x0000000075740000-0x000000007574A000-memory.dmp

      Filesize

      40KB

    • memory/2668-2-0x0000000075740000-0x000000007574A000-memory.dmp

      Filesize

      40KB