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Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03/02/2025, 12:37

General

  • Target

    2025-02-03_08abaaf9de5d384c11b3c458db76d1d7_floxif_mafia.exe

  • Size

    1.8MB

  • MD5

    08abaaf9de5d384c11b3c458db76d1d7

  • SHA1

    49053c395190259e5dc3ef87719be70a5a2f7d2c

  • SHA256

    3a3740f0cb93e6294d5f3951107558f0a29a66ac239b9f716ea2b4601c24c86a

  • SHA512

    4b81ec45735967bcb146c60edefeb1ea81699fb19eae6c503a11909951d868c5a5f5bf7c2550926838982b0d43f7641ca68617a7ffad39fc2df5ea46376b8a3e

  • SSDEEP

    49152:nggcdzpmooJe6qdqtDlAeloLfH79CAs/YeEN7M8SQSXLQhsAQJneWkqk:nqdzVoJe1qtDlAeGLfH79CAswe0Y8WQL

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
  • Modifies RDP port number used by Windows 1 TTPs
  • 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.

  • Maps connected drives based on registry 3 TTPs 5 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Remote Services: SMB/Windows Admin Shares 1 TTPs 1 IoCs

    Adversaries may use Valid Accounts to interact with a remote network share using Server Message Block (SMB).

  • UPX packed file 4 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Runs .reg file with regedit 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-02-03_08abaaf9de5d384c11b3c458db76d1d7_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-03_08abaaf9de5d384c11b3c458db76d1d7_floxif_mafia.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
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Windows\SysWOW64\regedit.exe
      regedit.exe /e "C:\Users\Admin\AppData\Local\Temp\Temp_BrCollect\Registry\HKLM-SYSTEM-CurrentControlSet.reg" "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet"
      2⤵
      • Maps connected drives based on registry
      • Remote Services: SMB/Windows Admin Shares
      • System Location Discovery: System Language Discovery
      • Checks SCSI registry key(s)
      • Runs .reg file with regedit
      PID:2548

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Temp_BrCollect\Registry\HKLM-SYSTEM-CurrentControlSet.reg

    Filesize

    8.5MB

    MD5

    31dd6b983678d94fcf56b4392cf41c42

    SHA1

    5f19b4f7cf93939bba7b75d16dfc3e144d706983

    SHA256

    34879be74073c6b128637d326002b4a215c011fbfd68353e55c58b1cd0adf26d

    SHA512

    29db2ad9d39df627023d159cfb492037bdf4f72fc85a32dc1c3b71977f302c6540680aec46f1917bfd54bb910ca29a354f0c38788c3cb0137e2c7bf90c737f62

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/2744-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2744-37-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2744-35-0x0000000000AA0000-0x0000000000C58000-memory.dmp

    Filesize

    1.7MB

  • memory/2744-40-0x0000000000AA0000-0x0000000000C58000-memory.dmp

    Filesize

    1.7MB

  • memory/2744-42-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB