Analysis

  • max time kernel
    140s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    29/07/2024, 04:48

General

  • Target

    d2eb8ea67d1ad99fcebabf114f8ca2c44cde62503a0c52d1ced3acd97794e138.dll

  • Size

    1.3MB

  • MD5

    1b8c6f7b950ac079e56a2ae709ffa349

  • SHA1

    a64ff34f1528e5164f54c329548c7bc3e7059d96

  • SHA256

    d2eb8ea67d1ad99fcebabf114f8ca2c44cde62503a0c52d1ced3acd97794e138

  • SHA512

    3489f2dda58b62104f091cdc6ae4a202690929859bc9c7a1eb7a950b9ca680de46cbe5a49578a086b5cc500571c0207897d7a10061eb175bef2598dd98e9bc42

  • SSDEEP

    24576:MoshrGbk0PpCcnCKZrhzuSWTAEn/RgaT2NX8nYRZR21omrEH7X:L1bwKrjWTADaOKYRZQG

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.

  • Loads dropped DLL 2 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 1 IoCs
  • Program crash 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
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\d2eb8ea67d1ad99fcebabf114f8ca2c44cde62503a0c52d1ced3acd97794e138.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d2eb8ea67d1ad99fcebabf114f8ca2c44cde62503a0c52d1ced3acd97794e138.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:468
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 468 -s 296
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2464

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/468-3-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/468-6-0x0000000010220000-0x000000001036A000-memory.dmp

          Filesize

          1.3MB

        • memory/468-7-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB