Analysis

  • max time kernel
    103s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/04/2025, 23:50

General

  • Target

    2025-04-03_7a79ac324cb4133629843c76e0ac166f_black-basta_cobalt-strike_floxif_hijackloader_luca-stealer.exe

  • Size

    208KB

  • MD5

    7a79ac324cb4133629843c76e0ac166f

  • SHA1

    6ff96bc50b15b5537b71d28297ee87db8d6bf0cc

  • SHA256

    b355d65d881b540714d0eaabb3695c529e8c7726061b7ebcd7baa4b3d5a1abcf

  • SHA512

    0f91307e64ed3c9e538ce9c9498b556a5d4bbb73343908ac4da6597ec3d56a40efb16b7ce5377ee8b36eb13f819b4633a3444f39370f56dfbe960ed04cf8a69e

  • SSDEEP

    3072:EH0PD+CWh5lO6ZflUgNtpARctyz1zs87IgEt/+Z3j2lQBV+UdE+rECWp7hKJ/R:ESD+zXffegxAF+gNBV+UdvrEFp7hKJZ

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
  • UPX packed file 3 IoCs

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

  • Drops file in Program Files directory 1 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 use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-04-03_7a79ac324cb4133629843c76e0ac166f_black-basta_cobalt-strike_floxif_hijackloader_luca-stealer.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-04-03_7a79ac324cb4133629843c76e0ac166f_black-basta_cobalt-strike_floxif_hijackloader_luca-stealer.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/3928-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/3928-6-0x000000000040B000-0x000000000040F000-memory.dmp

    Filesize

    16KB

  • memory/3928-8-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB