Analysis

  • max time kernel
    114s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-08-2024 03:13

General

  • Target

    f6f9c0245d97dbfa15a8324c14e1eb50N.dll

  • Size

    1.2MB

  • MD5

    f6f9c0245d97dbfa15a8324c14e1eb50

  • SHA1

    4b7360531a3f6ea3cd2ffb51596f721a02154a66

  • SHA256

    fce803d67f7d5d5270ab108dc8895e19fbdea5b5ec2d00593d7af25cf4cd5d46

  • SHA512

    1a93d27c56fc84a3b274a4ce40fdbf2a9aae0a2702293e736fd258a1d1e7c349d4bbeb3b8cd0d3a537746a701c45da618417fe05cfb0f7780e46d215c1021a35

  • SSDEEP

    24576:BF3HV0rHRLfmjHprvHfVg9lDT4Y1WYZVzeXkj9Gd6CT1vDd6CT1v1+6H+60rEH7Q:BF3HV0rHRLfmjHprvHfVg9x4YgYZOk08

Malware Config

Signatures

  • Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Detects Floxif payload 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

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

  • Drops file in Program Files directory 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\f6f9c0245d97dbfa15a8324c14e1eb50N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:324
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f6f9c0245d97dbfa15a8324c14e1eb50N.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3128
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4340,i,1729213506309163284,12809566808978835441,262144 --variations-seed-version --mojo-platform-channel-handle=4288 /prefetch:8
    1⤵
      PID:1680

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files\Common Files\System\symsrv.dll

      Filesize

      67KB

      MD5

      7574cf2c64f35161ab1292e2f532aabf

      SHA1

      14ba3fa927a06224dfe587014299e834def4644f

      SHA256

      de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

      SHA512

      4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

    • memory/3128-4-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/3128-5-0x0000000075511000-0x0000000075512000-memory.dmp

      Filesize

      4KB

    • memory/3128-6-0x0000000075510000-0x0000000075631000-memory.dmp

      Filesize

      1.1MB

    • memory/3128-8-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB