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
    16-09-2024 01:41

General

  • Target

    2024-09-16_e3d1d451709c5499999de88d21f29707_avoslocker_cobalt-strike_floxif_hijackloader.exe

  • Size

    989KB

  • MD5

    e3d1d451709c5499999de88d21f29707

  • SHA1

    96f9a056e8b7f71532aaac35aa622ffb6377e404

  • SHA256

    e562432ad86cf6362a3e674d9bd32be99340441ddd0bf9a5b0c4606271ff63cd

  • SHA512

    0dfb8d3422d98c484bdc14df77a61df59422b8eb96d683f8b9ad3686e218d9176a8d8af112d2e081f7cbb8328cdc5e5a4373007c9f89e380e2842aa6dea00741

  • SSDEEP

    24576:V3diFjFZyTE4vttcY+/fpfHn+gXM+TK2zM7YLrEH7q:NdUjmFtcY+/fpfHn5XM+TK2I7YD

Malware Config

Signatures

  • 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\2024-09-16_e3d1d451709c5499999de88d21f29707_avoslocker_cobalt-strike_floxif_hijackloader.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-16_e3d1d451709c5499999de88d21f29707_avoslocker_cobalt-strike_floxif_hijackloader.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2848

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/2848-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2848-8-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/2848-6-0x0000000000170000-0x0000000000256000-memory.dmp

    Filesize

    920KB