Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    15-08-2024 19:13

General

  • Target

    dac5e2710f0d5bca2e7e5b25d2a03ba0N.dll

  • Size

    955KB

  • MD5

    dac5e2710f0d5bca2e7e5b25d2a03ba0

  • SHA1

    97b600e5737f4308f1a91ebaed7c475785fc551a

  • SHA256

    6e9594960e80d1ec51eb7d8096cf1108265e57d9bb1f272ef0e4f6436ea4a59a

  • SHA512

    67e805799f0d104a89b4130817e3a83131b24eeb4a8e122a4e3d85ff06421c87312ba0afa5cddac069696466a05595b5e05a97127dc1e0dcdef3ad61abd8f1a6

  • SSDEEP

    24576:wr37G4TrusL4rCvwHIo2WEyMz7yYK6ZSmd9saBjAnVFpMrEH7c:w2xrCvPxzvbsiUFY

Malware Config

Signatures

  • Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Detects Floxif payload 1 IoCs
  • Blocklisted process makes network request 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\dac5e2710f0d5bca2e7e5b25d2a03ba0N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2388
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\dac5e2710f0d5bca2e7e5b25d2a03ba0N.dll,#1
      2⤵
      • Blocklisted process makes network request
      • 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:2068

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/2068-3-0x00000000002B0000-0x00000000002E0000-memory.dmp

    Filesize

    192KB

  • memory/2068-6-0x0000000010000000-0x00000000100DF000-memory.dmp

    Filesize

    892KB

  • memory/2068-8-0x00000000002B0000-0x00000000002E0000-memory.dmp

    Filesize

    192KB