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Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    10/12/2024, 07:33

General

  • Target

    2024-12-10_5c33d0684927b54587e18f002eba40c1_bkransomware_floxif.exe

  • Size

    4.7MB

  • MD5

    5c33d0684927b54587e18f002eba40c1

  • SHA1

    c29369056295a77d6422c8898361d55f1ba5c44d

  • SHA256

    33e347afd07325d3d0ab0cd2ba17db5bddb4997f090753fb59f5ba75f5fc3c96

  • SHA512

    39af66ad13ea8feda55763361473403ea526402235636c9d01b36fa372b35f8ecc8bd382286bf081cce2baec0303afd26542c5a6e20e95c45c0ef4644b8c79b2

  • SSDEEP

    98304:kBe40bl9dRPenSX5gSoCi0DHV1dE46V3u/f:h3NenqioL/f

Malware Config

Signatures

  • Floxif family
  • Floxif, Floodfix

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

  • Detects Floxif payload 1 IoCs
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • 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
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-10_5c33d0684927b54587e18f002eba40c1_bkransomware_floxif.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-10_5c33d0684927b54587e18f002eba40c1_bkransomware_floxif.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1508

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/1508-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1508-7-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1508-5-0x0000000000910000-0x0000000000DD1000-memory.dmp

    Filesize

    4.8MB