Analysis

  • max time kernel
    93s
  • max time network
    97s
  • 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 18:22

General

  • Target

    AdbWinApi.dll

  • Size

    182KB

  • MD5

    cdba2b25b83a99889e1b81dfaeca4ce2

  • SHA1

    87002bdefb59fcc80840d0051e75ba6b621c711f

  • SHA256

    585a3c061b60f6611d4bb5204ad23f3f63ed9ab428a5068c30135b626b9ec8de

  • SHA512

    83e9a81c0f5b7ee46197586f0f76eb3df4c3aa3fc8d94f4fcc9f45fa5bbbaf835740d90a678a9d0504fca3332b87b1bd346c5199da22351d2b0b1cee6be98846

  • SSDEEP

    3072:PwqDuL8Tr5lzq0et+ui1yEk2lQBV+UdE+rECWp7hKwzk:oq28RMJLBV+UdvrEFp7hK+k

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
  • 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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\AdbWinApi.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:716
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\AdbWinApi.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:1040
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1040 -s 712
        3⤵
        • Program crash
        PID:3560
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1040 -ip 1040
    1⤵
      PID:2000

    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/1040-4-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1040-8-0x0000000010000000-0x0000000010030000-memory.dmp

      Filesize

      192KB

    • memory/1040-6-0x0000000074F10000-0x0000000074F2C000-memory.dmp

      Filesize

      112KB