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Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01/01/2025, 20:53

General

  • Target

    242fcce8e3ba9a5e36a1de52a279aea7b1555ceae54b9c786d2e3249a14ecfc9.dll

  • Size

    178KB

  • MD5

    3c7d1ed365301aca635cd536e0465fd8

  • SHA1

    6f15fcaab1a964393ca21bdf8bcedbcc771ee4f0

  • SHA256

    242fcce8e3ba9a5e36a1de52a279aea7b1555ceae54b9c786d2e3249a14ecfc9

  • SHA512

    5d07e4418de8430dc0b01c6a8e593e09641fc57f0deae6f59846e92e9d538534a611abc7d6a8bd0f4e6ae18dbb45385521778751696781e3ddc0a4dadd23164e

  • SSDEEP

    3072:2GbYMj7630VknYm6VxpTOZWdpAsQvVqRlkM4OAD/KLznBuB2JA2Bj06:EA76kVnpTOZWd2sQvMRlkM4RD/qzMfUF

Malware Config

Signatures

  • Floxif family
  • 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
  • Network Service Discovery 1 TTPs 1 IoCs

    Attempt to gather information on host's network.

  • UPX packed file 3 IoCs

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

  • Drops file in Program Files directory 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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\242fcce8e3ba9a5e36a1de52a279aea7b1555ceae54b9c786d2e3249a14ecfc9.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2676
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\242fcce8e3ba9a5e36a1de52a279aea7b1555ceae54b9c786d2e3249a14ecfc9.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2696
      • C:\Windows\SysWOW64\arp.exe
        arp -a
        3⤵
        • Network Service Discovery
        PID:2720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    71KB

    MD5

    4fcd7574537cebec8e75b4e646996643

    SHA1

    efa59bb9050fb656b90d5d40c942fb2a304f2a8b

    SHA256

    8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

    SHA512

    7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

  • memory/2696-0-0x0000000075279000-0x000000007527A000-memory.dmp

    Filesize

    4KB

  • memory/2696-4-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/2696-8-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/2696-6-0x0000000075270000-0x0000000075288000-memory.dmp

    Filesize

    96KB