Analysis

  • max time kernel
    142s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 12:23

General

  • Target

    2024-12-25_1257299a04dee635127038c8c8135fdd_floxif_mafia_revil.exe

  • Size

    4.3MB

  • MD5

    1257299a04dee635127038c8c8135fdd

  • SHA1

    ad58d4c6a59a2fa1d64387497e04d22763742104

  • SHA256

    2d0e57916ab1ddf19755468bb4ee4bd0d03f3e4e9f382c75b9ee60a680b4f171

  • SHA512

    7cfc7bf42c579fb793cfebb208425041e3c2f2dd0437b5e5a515dd1ccbac5e6a9ccf6e2f129a7eed9d24d57438b954c1d6938d734ea73f77379236ec97312aa7

  • SSDEEP

    98304:3joSW6hBxA6QF4dYVvKolsgRafbarX9pxIEz/hQs5:MZ6hwn0gRL9LLjhx5

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.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • UPX packed file 10 IoCs

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

  • Drops file in Program Files directory 2 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-25_1257299a04dee635127038c8c8135fdd_floxif_mafia_revil.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-25_1257299a04dee635127038c8c8135fdd_floxif_mafia_revil.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2068

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\Common Files\System\symsrv.dll.000

    Filesize

    175B

    MD5

    1130c911bf5db4b8f7cf9b6f4b457623

    SHA1

    48e734c4bc1a8b5399bff4954e54b268bde9d54c

    SHA256

    eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

    SHA512

    94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/2068-21-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2068-20-0x0000000000140000-0x0000000000578000-memory.dmp

    Filesize

    4.2MB

  • memory/2068-13-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2068-12-0x0000000000140000-0x0000000000578000-memory.dmp

    Filesize

    4.2MB

  • memory/2068-17-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2068-16-0x0000000000140000-0x0000000000578000-memory.dmp

    Filesize

    4.2MB

  • memory/2068-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2068-11-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2068-5-0x0000000000141000-0x0000000000142000-memory.dmp

    Filesize

    4KB

  • memory/2068-27-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2068-26-0x0000000000140000-0x0000000000578000-memory.dmp

    Filesize

    4.2MB

  • memory/2068-31-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2068-30-0x0000000000140000-0x0000000000578000-memory.dmp

    Filesize

    4.2MB

  • memory/2068-33-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2068-32-0x0000000000140000-0x0000000000578000-memory.dmp

    Filesize

    4.2MB

  • memory/2068-45-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB