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Analysis

  • max time kernel
    94s
  • max time network
    149s
  • 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, 00:29

General

  • Target

    2024-12-13_00b52cc8898b3c6f56361824ec74461a_avoslocker_cobalt-strike_floxif_luca-stealer.exe

  • Size

    660KB

  • MD5

    00b52cc8898b3c6f56361824ec74461a

  • SHA1

    e5e4ff8cf1b777a05653dfd1ee9060a0c2a2d35d

  • SHA256

    e6a79ee379c24a3438e50a59360b29c57401c409403dd63b45b648899812450e

  • SHA512

    410aec9d30d24a8147b991ab7215c948bfbe77445f0cac51067b73fe414dde8a6b72e578b3f15df2a8cf956de696179a7eee59ac153b2565018b7f4da8606848

  • SSDEEP

    12288:QElbaJ26R2TZszr8jxrMnVWqqPIBONhxsUzMi4BjvrEH7G:QElbasLXX/xsUzvKrEH7G

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 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-13_00b52cc8898b3c6f56361824ec74461a_avoslocker_cobalt-strike_floxif_luca-stealer.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-13_00b52cc8898b3c6f56361824ec74461a_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:4656

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

    5KB

    MD5

    e0f64510c5484c95d9719f8cb22e0c12

    SHA1

    26559f41664071de2afaeb2fdd32d47874b860be

    SHA256

    594c41ce4325dfa56b59d5e551400242b2381639a72d2f73f96b224ddd747c76

    SHA512

    cbea8cafe2b321ed5d89dc020acf6862dd7a6df90bc116e79ec148c53bb6051cc3f1bf7621358bb50dd32b56135a5202621fc8ac6563e16611c0524e1f1a7388

  • memory/4656-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4656-62-0x0000000000D80000-0x0000000000E18000-memory.dmp

    Filesize

    608KB

  • memory/4656-64-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB