Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-12-2024 00:38

General

  • Target

    2024-12-13_1c53848ea2abd1e536773496cfc123e7_avoslocker_cobalt-strike_floxif_luca-stealer.exe

  • Size

    662KB

  • MD5

    1c53848ea2abd1e536773496cfc123e7

  • SHA1

    b6a829ed88699726ac13a65c5f1a7d44d9aafe0c

  • SHA256

    3ffeb1ce81389ee7f551ded16164d1d53d80783cf849b787cdb461c30c7e9eef

  • SHA512

    456237cbe46b0f8bc9b8b36b0675c65e4e4f690c42ab0b5570ca5e9b7f9852ba113721df26fe8dcfca93b828cb023d13dd7d44e39f80c413c3343d13f6b305f8

  • SSDEEP

    12288:9gkJRl603BBKlhPj87HnVWqqPIBONhxsUzb95SBjvrEH7G:9gkJPlbm/xsUzPUrEH7G

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
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-13_1c53848ea2abd1e536773496cfc123e7_avoslocker_cobalt-strike_floxif_luca-stealer.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-13_1c53848ea2abd1e536773496cfc123e7_avoslocker_cobalt-strike_floxif_luca-stealer.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
    PID:1588

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

  • C:\Users\Admin\AppData\Local\Temp\log.txt

    Filesize

    6KB

    MD5

    372e9728eb277af8e6381e0408b2a1dc

    SHA1

    7cac1ab6d5dd4389b7fb144d49d0e80bfef6b060

    SHA256

    6fa8474989dca3b092441f31a907ea654baa05a4b28430479392f7b63bbf7753

    SHA512

    c23e720b327fd1e98cb231a4279ebf986be57853da3d138d000b24751c1b0c4501ac8e7a85a25132dc258eb0b4f7dac6324de3d365be1b5028a24e73fe83e960

  • memory/1588-2-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1588-62-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/1588-60-0x0000000000880000-0x0000000000918000-memory.dmp

    Filesize

    608KB