Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-09-2024 13:13

General

  • Target

    20240904aacceba6e53d5029434e0b00584a7421bkransomwarefloxif.exe

  • Size

    4.7MB

  • MD5

    aacceba6e53d5029434e0b00584a7421

  • SHA1

    30a1f9ea6e143ad352db1e5fb9d0acdb34aa8a4c

  • SHA256

    ae00a080d8325a45d7e84a296c573ea07e45fe3e9ae11db6daafe144f8e294d6

  • SHA512

    a039da6835eb088a8c0b4e42ea30c00c7786bb3553cac24d28693f428cf33c537ab179ae7b4c7e85abe5a8a517ff17b1b3da0580977882ec5b6bb0a517e4f628

  • SSDEEP

    98304:kb40bl9dRPenSX5gSoCn0DHDB1dE46V3u/Z:i3Nenqn8L/Z

Malware Config

Signatures

  • 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\20240904aacceba6e53d5029434e0b00584a7421bkransomwarefloxif.exe
    "C:\Users\Admin\AppData\Local\Temp\20240904aacceba6e53d5029434e0b00584a7421bkransomwarefloxif.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:1620

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/1620-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1620-7-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1620-5-0x0000000000920000-0x0000000000DE1000-memory.dmp

    Filesize

    4.8MB