Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10/01/2025, 18:06

General

  • Target

    2025-01-10_892a47d316f41df59a6c67160059c717_floxif_mafia.exe

  • Size

    266KB

  • MD5

    892a47d316f41df59a6c67160059c717

  • SHA1

    cdbe22e3a768a5f33682cc68c3c3d8d16cd511b5

  • SHA256

    29ef0c69ea50c29b9068f7d9e5556ee498a4480d53787de910db805fc1d7a333

  • SHA512

    2016509329833c1ae7f0b780b29baa72d7d6574c9e5c1f0f248bc64b82126afffb56cc852e4df6f61bbd15e675da718da51344aa97766f83925d1e54eaa41d89

  • SSDEEP

    6144:cl7shBongzc8rNJR83BKp2pv2BV+UdvrEFp7hKncR:jBont8rNJR8RKpgv2BjvrEH7K+

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
  • 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.

  • 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 2 IoCs

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

  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-10_892a47d316f41df59a6c67160059c717_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-10_892a47d316f41df59a6c67160059c717_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 WriteProcessMemory
    PID:2572
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\HWID.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:3044

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\HWID.txt

    Filesize

    271B

    MD5

    4bd7555a624457084dbaab82f5536cbe

    SHA1

    d2ff33bc3cf0cc62476fac0c984a49945fffffa2

    SHA256

    ce9b3ecf3a8f522278d8d35b7e81d4494f22670218b1b35f6bea8889714e6d91

    SHA512

    2d1f7a7bbe8c168a7cf674645a4f2cd78734ee569ecf5b1ac9ffb6f992fcd6aa55ca860785bc07bd8870667437b1dfd75351977a51f291c2a111c55b793cb58a

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/2572-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2572-5-0x00000000012A1000-0x00000000012A2000-memory.dmp

    Filesize

    4KB

  • memory/2572-27-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2572-25-0x00000000012A0000-0x00000000013CA000-memory.dmp

    Filesize

    1.2MB