Analysis

  • max time kernel
    136s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-08-2024 20:30

General

  • Target

    setup-gscstudio-160215.exe

  • Size

    15.2MB

  • MD5

    647df13a2bdcbd31ddcd802cb98d3b5d

  • SHA1

    1a6907ff046c988978b402f22d6b0ea0fc701f61

  • SHA256

    a7ce0024bb22e59b6ea084f3dc7034a795173476e2639bafc7336c7c00c82a1c

  • SHA512

    ef399be676a656f05456477e143abe0ac06bfa29a2fb0c6aced9815e3bab7e24ab6d46d36137adfde05cfdbd9f21713bdb6d9216ba02fbbc47153186b4c1d7e9

  • SSDEEP

    393216:2CsS8x172A0gdks+wcxeYUj9nPx2Y3I1muz8FDozYXRXc:2CsLX7X4wKwPZY0uoFDoMXRM

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.

  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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\setup-gscstudio-160215.exe
    "C:\Users\Admin\AppData\Local\Temp\setup-gscstudio-160215.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:4040

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/4040-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4040-5-0x0000000000401000-0x0000000000405000-memory.dmp

    Filesize

    16KB

  • memory/4040-11-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/4040-14-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4040-15-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB