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Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    11/12/2024, 01:25

General

  • Target

    2024-12-11_3a681d88e04ce1235b0f947ce8687812_avoslocker_cobalt-strike_floxif_luca-stealer.exe

  • Size

    658KB

  • MD5

    3a681d88e04ce1235b0f947ce8687812

  • SHA1

    221cfdc1529c485da2137e778b671f41bf75134e

  • SHA256

    9a93e91df4b6c79cd889b9e97bc929ee41d7dc39e4f85de39b0a1ed579ec7414

  • SHA512

    09da29432b3baa6eb7f9659c9cebf36c8954afcf027bc68e6859dafd053376390dfdd46a59d59858a0e27d51438ba2f0b5d7de6e4820e37592440a836c2f7230

  • SSDEEP

    12288:m792koy93FvVQ2/1kQ6hFzHeb4pDQnoXq9lAeiXRivApuWVDgbwJLvq9KP8fE0WN:hFLaoXq9lAei+iDgbALy9KPm6rEH7wl

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
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • 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\2024-12-11_3a681d88e04ce1235b0f947ce8687812_avoslocker_cobalt-strike_floxif_luca-stealer.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-11_3a681d88e04ce1235b0f947ce8687812_avoslocker_cobalt-strike_floxif_luca-stealer.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • memory/772-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/772-9-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/772-8-0x0000000000E80000-0x0000000000F14000-memory.dmp

    Filesize

    592KB

  • memory/772-5-0x0000000000E81000-0x0000000000E82000-memory.dmp

    Filesize

    4KB

  • memory/772-6-0x0000000000E80000-0x0000000000F14000-memory.dmp

    Filesize

    592KB