Resubmissions

14/05/2024, 18:33

240514-w7fzzsac5z 7

19/02/2024, 06:44

240219-hhfq2aba64 7

Analysis

  • max time kernel
    90s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/02/2024, 06:44

General

  • Target

    $TEMP/uninstall_fc.exe

  • Size

    59KB

  • MD5

    9b5a8a1e1a13cb6f5d344cf5f92866f9

  • SHA1

    db6e74fa5b1abbd8a412e21b437d03d173617bf9

  • SHA256

    9c3e4cbf323170eaf1d82a59496557f8013b65d0853bb05b7c054f0d5d856889

  • SHA512

    2dfc4dae9f743831e2e67861e5cd5a118a967fdba9b0c2655e9e71614fa76762b3fcc175feb98c7801d3f753cfe1156168f9125c905b14c28caa0babb4566aaa

  • SSDEEP

    1536:spgpHzb9dZVX9fHMvG0D3XJzQEyS+EhuL0:6gXdZt9P6D3XJkiU0

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$TEMP\uninstall_fc.exe
    "C:\Users\Admin\AppData\Local\Temp\$TEMP\uninstall_fc.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3236
    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\$TEMP\
      2⤵
      • Executes dropped EXE
      PID:984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

    Filesize

    59KB

    MD5

    9b5a8a1e1a13cb6f5d344cf5f92866f9

    SHA1

    db6e74fa5b1abbd8a412e21b437d03d173617bf9

    SHA256

    9c3e4cbf323170eaf1d82a59496557f8013b65d0853bb05b7c054f0d5d856889

    SHA512

    2dfc4dae9f743831e2e67861e5cd5a118a967fdba9b0c2655e9e71614fa76762b3fcc175feb98c7801d3f753cfe1156168f9125c905b14c28caa0babb4566aaa