Analysis

  • max time kernel
    125s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-09-2024 17:48

General

  • Target

    20240913cc6f199a6f24d777c2c7bd7c1d72de39bkransomwarefloxif.exe

  • Size

    2.3MB

  • MD5

    cc6f199a6f24d777c2c7bd7c1d72de39

  • SHA1

    bfe10a90fb92d37bf2f32a911cf64c289dbe1e50

  • SHA256

    6762027dd091793e85a117a814dcefceccbb2f762c8c6c8f0f67f8c2152d4b83

  • SHA512

    3bb8db434092d11de6dfde4ca9d2e3c377378d45e85f6569430b048dcb58a818dc30b0c2c585a1e79e34a680c8911f2095ae68f8073b5e2f00a5b59192508bc3

  • SSDEEP

    49152:1g4/fb0T3hlfNIbJy1m3a2bhwM1BPP2q0qzlB/8zIaySwzKXFr7fJv5t:bfEh9NIdy1BEwMjuq0qzlB/kIaySOKXD

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 SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20240913cc6f199a6f24d777c2c7bd7c1d72de39bkransomwarefloxif.exe
    "C:\Users\Admin\AppData\Local\Temp\20240913cc6f199a6f24d777c2c7bd7c1d72de39bkransomwarefloxif.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1088
  • 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=3924,i,3861745594156495651,17595114179815238301,262144 --variations-seed-version --mojo-platform-channel-handle=4300 /prefetch:8
    1⤵
      PID:4528

    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/1088-4-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1088-9-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1088-7-0x0000000000CB0000-0x0000000000EED000-memory.dmp

      Filesize

      2.2MB