Overview

overview

10

Static

static

1

2024-12-16...if.exe

windows7-x64

10

2024-12-16...if.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    93s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2024 03:30

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General

  • Target

    2024-12-16_50c739fbea436c110b989b5a6f113aa2_bkransomware_floxif.exe

  • Size

    4.7MB

  • MD5

    50c739fbea436c110b989b5a6f113aa2

  • SHA1

    47442b35ed0131c049dd72c226f25e10d3284c49

  • SHA256

    969220692c8b1ec0be6bc91e293d77d7789de59292610f0e899e5c01095e0642

  • SHA512

    9b74205486efe90cd932e4fd5f8ead249d9711811fa44bf21340880f740b1f6241b231e2447337882e33cca7d694541d5a94f185b81ee544e2f6ef3d3645d2ed

  • SSDEEP

    98304:kBe40bl9dRPenSX5gSoF/0DHDB1dE46V3u/u:h3Nend/8L/u

Score
10/10
floxifbackdoordiscoverytrojanupx

Malware Config

Signatures

  • Floxif family
    floxif
  • Floxif, Floodfix

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

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

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • UPX packed file 3 IoCs

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

    upx
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 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.

    discovery
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-16_50c739fbea436c110b989b5a6f113aa2_bkransomware_floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-16_50c739fbea436c110b989b5a6f113aa2_bkransomware_floxif.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4904
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 1276
      2⤵
      • Program crash
      PID:2272
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4904 -ip 4904
    1⤵
      PID:2040

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      67KB

      MD5

      7574cf2c64f35161ab1292e2f532aabf

      SHA1

      14ba3fa927a06224dfe587014299e834def4644f

      SHA256

      de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

      SHA512

      4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

      Download Submit

    • memory/4904-4-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

      Download

    • memory/4904-14-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

      Download

    • memory/4904-12-0x0000000000220000-0x00000000006E1000-memory.dmp

      Filesize

      4.8MB

      Download