Analysis

  • max time kernel
    125s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-09-2024 15:22

General

  • Target

    2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe

  • Size

    4.7MB

  • MD5

    163197198eea18070d76eb4a5d06494b

  • SHA1

    35013ade04cd4bb3d1cfc5419a9e81d0580665e7

  • SHA256

    a61c854176f852e2391ce87ff9e3d61a9fdf8e5400397d3131fb27d750e61e5d

  • SHA512

    ab52c4645b7cd41ae14548c53d9f1fa3e623b4a20b8c33ed0cf3a93d3b3e5be1146d5f1a4ae2d3f28a5f99d8afa508104cc11dd45952f901154d29673dc3be19

  • SSDEEP

    98304:wTv98udn7jVemDxOQ+5tusqzoKB6HFiPlKQK4oOXJVW:wxT7jVnxO5ssq6Md+uJo

Malware Config

Signatures

  • 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.

  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Loads dropped DLL 4 IoCs
  • UPX packed file 6 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
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.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
    • Suspicious use of WriteProcessMemory
    PID:1492
    • C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-09-16_163197198eea18070d76eb4a5d06494b_floxif_magniber.exe"
      2⤵
      • Checks BIOS information in registry
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      PID:1624
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 1096
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:804
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4132,i,13995403245988825027,7033610968827661507,262144 --variations-seed-version --mojo-platform-channel-handle=4256 /prefetch:8
    1⤵
      PID:1512
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1624 -ip 1624
      1⤵
      • Loads dropped DLL
      PID:1600

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      67KB

      MD5

      7574cf2c64f35161ab1292e2f532aabf

      SHA1

      14ba3fa927a06224dfe587014299e834def4644f

      SHA256

      de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

      SHA512

      4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

    • memory/1492-1-0x0000000000400000-0x0000000000FE5000-memory.dmp

      Filesize

      11.9MB

    • memory/1492-6-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1492-50-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1492-48-0x0000000000400000-0x0000000000FE5000-memory.dmp

      Filesize

      11.9MB

    • memory/1492-39-0x0000000000400000-0x0000000000FE5000-memory.dmp

      Filesize

      11.9MB

    • memory/1492-40-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1624-32-0x0000000000400000-0x0000000000FE5000-memory.dmp

      Filesize

      11.9MB

    • memory/1624-36-0x0000000003B30000-0x0000000003C6C000-memory.dmp

      Filesize

      1.2MB

    • memory/1624-25-0x0000000000400000-0x0000000000FE5000-memory.dmp

      Filesize

      11.9MB

    • memory/1624-27-0x0000000000400000-0x0000000000FE5000-memory.dmp

      Filesize

      11.9MB

    • memory/1624-28-0x0000000000400000-0x0000000000FE5000-memory.dmp

      Filesize

      11.9MB

    • memory/1624-23-0x0000000000400000-0x0000000000FE5000-memory.dmp

      Filesize

      11.9MB

    • memory/1624-31-0x0000000000400000-0x0000000000FE5000-memory.dmp

      Filesize

      11.9MB

    • memory/1624-33-0x0000000003B30000-0x0000000003C6C000-memory.dmp

      Filesize

      1.2MB

    • memory/1624-35-0x0000000003B30000-0x0000000003C6C000-memory.dmp

      Filesize

      1.2MB

    • memory/1624-24-0x0000000000400000-0x0000000000FE5000-memory.dmp

      Filesize

      11.9MB

    • memory/1624-42-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1624-41-0x0000000000400000-0x0000000000FE5000-memory.dmp

      Filesize

      11.9MB

    • memory/1624-14-0x0000000003B30000-0x0000000003C6C000-memory.dmp

      Filesize

      1.2MB

    • memory/1624-19-0x0000000003B30000-0x0000000003C6C000-memory.dmp

      Filesize

      1.2MB

    • memory/1624-47-0x0000000003B30000-0x0000000003C6C000-memory.dmp

      Filesize

      1.2MB

    • memory/1624-12-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1624-9-0x0000000000400000-0x0000000000FE5000-memory.dmp

      Filesize

      11.9MB