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Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07/04/2024, 00:02

General

  • Target

    a58fd625bf63b8a73ef378fe80f7570a26926089df7196dc4254011aaf3b4ed5.exe

  • Size

    449KB

  • MD5

    74fe65d5e23e006e59e09de6e3c92e15

  • SHA1

    571424032ebbd55453af2a725357183ef94a23d4

  • SHA256

    a58fd625bf63b8a73ef378fe80f7570a26926089df7196dc4254011aaf3b4ed5

  • SHA512

    6f13e6e6cc9026b014aabb1ec1e06b756adabe7b8a9fc267a99c1ef234a1a0fd2b3ba5d9f673addd9a2932601200c79157bfe6d995b2cd35f13b7115ae3f1055

  • SSDEEP

    12288:NJu6lfyi4fabr9jy4BNKOSuDVh+vh4tH1jo3rqsh2T:N8XfyhLNKQVhKutH1jo3Phu

Score
9/10

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 3 IoCs
  • Modifies AppInit DLL entries 2 TTPs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a58fd625bf63b8a73ef378fe80f7570a26926089df7196dc4254011aaf3b4ed5.exe
    "C:\Users\Admin\AppData\Local\Temp\a58fd625bf63b8a73ef378fe80f7570a26926089df7196dc4254011aaf3b4ed5.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of UnmapMainImage
    PID:2228
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {4C2F6653-F00B-438D-BADF-4376140E064E} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\PROGRA~3\Mozilla\dbilzqh.exe
      C:\PROGRA~3\Mozilla\dbilzqh.exe -kwinamg
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of UnmapMainImage
      PID:3000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~3\Mozilla\dbilzqh.exe

    Filesize

    449KB

    MD5

    3de42d2c27e8afdc9ad904efdb8f1e1a

    SHA1

    08a975e9c4b5eafee5de4b467951c4d2512029a2

    SHA256

    6281858ed0d197650b5a5f18d1adc24ad384b96bf2cdeb0b6a5762a99f36ee5e

    SHA512

    7ddd724e405d72987b5cfb16485d20059dbd6d641cd93d81518b3f4fd2475e4935a37e807d1458e1c61b65f2cac011ce20bc287453b334bbe9a824b531680025

  • memory/2228-2-0x0000000000260000-0x00000000002BB000-memory.dmp

    Filesize

    364KB

  • memory/2228-1-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/2228-0-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2228-4-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/3000-7-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/3000-8-0x00000000003A0000-0x00000000003FB000-memory.dmp

    Filesize

    364KB

  • memory/3000-9-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/3000-11-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB