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 18:02

General

  • Target

    d19247069c7be4694aa3087c5771d110N.dll

  • Size

    1.2MB

  • MD5

    d19247069c7be4694aa3087c5771d110

  • SHA1

    5cc97f7f47ebdfe947f047249495a70932e59023

  • SHA256

    8b3557af0501ffb5953b46f02741715a4b9d19a5093344a509b570ec5b0dac7e

  • SHA512

    baf59ac3741dfb2d893a5cdfc189021e59fb11213ad892aaa0c9fc960fa0f313b8ade8ef29852a3cba811f8eda2ad95985c0eb59a6e9f0667d0051d3f9820bfc

  • SSDEEP

    24576:LF3HV0rHRLfmjHprvHfVg9lDT4Y1BYZVzePkj9Gd6CT1vDd6CT1v1+6H+60rEH7e:LF3HV0rHRLfmjHprvHfVg9x4YfYZSk0S

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\d19247069c7be4694aa3087c5771d110N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3308
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d19247069c7be4694aa3087c5771d110N.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2304
  • 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=4228,i,10369132178352108590,11047993562598554317,262144 --variations-seed-version --mojo-platform-channel-handle=4184 /prefetch:8
    1⤵
      PID:2384

    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/2304-2-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/2304-6-0x0000000074D81000-0x0000000074D82000-memory.dmp

      Filesize

      4KB

    • memory/2304-9-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/2304-7-0x0000000074D80000-0x0000000074EA1000-memory.dmp

      Filesize

      1.1MB