Analysis

  • max time kernel
    92s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-12-2024 05:50

General

  • Target

    34ab4b716bdd66690db71ccb7441f516eaa278d62ee924a0c82d3c1c00bc0ed7N.exe

  • Size

    622KB

  • MD5

    d9f52894276d2ace9df7005e70b36d00

  • SHA1

    e3e53553774964d9cd864f827d279e962074b001

  • SHA256

    34ab4b716bdd66690db71ccb7441f516eaa278d62ee924a0c82d3c1c00bc0ed7

  • SHA512

    83982c4fa60c1a535297384ad2df98615b049d042f50bc1989006e84cc59f1de9c0929db3f0b4d0048f9aa4fea6ea7b0e610e40065aa50e9c38be042a307efca

  • SSDEEP

    12288:fIlsAkjIf/WbGH/+8zoXEyO4M11fTcgoLLoa5RZMRGM4h/qofv:fHAL7+8zuErIgoLLoIZMRGJ/qofv

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
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Network Service Discovery 1 TTPs 9 IoCs

    Attempt to gather information on host's network.

  • UPX packed file 5 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\34ab4b716bdd66690db71ccb7441f516eaa278d62ee924a0c82d3c1c00bc0ed7N.exe
    "C:\Users\Admin\AppData\Local\Temp\34ab4b716bdd66690db71ccb7441f516eaa278d62ee924a0c82d3c1c00bc0ed7N.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:1140
    • C:\Windows\SysWOW64\arp.exe
      arp -a
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:1516
    • C:\Windows\SysWOW64\arp.exe
      arp -s 10.127.0.1 a4-b3-10-8b-62-1c
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:3836
    • C:\Windows\SysWOW64\arp.exe
      arp -s 10.127.255.255 5a-42-44-f2-6a-fa
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:4848
    • C:\Windows\SysWOW64\arp.exe
      arp -s 37.27.61.184 2f-a5-ad-39-80-0a
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:3052
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.22 ad-e5-ff-78-83-f0
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:4856
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.251 69-0e-5a-7a-02-17
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:540
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.252 43-eb-8f-2d-f3-a6
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2552
    • C:\Windows\SysWOW64\arp.exe
      arp -s 239.255.255.250 1c-4f-db-88-39-23
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:4700
    • C:\Windows\SysWOW64\arp.exe
      arp -s 255.255.255.255 17-79-9f-d2-b5-ef
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2184
    • C:\Windows\SysWOW64\arp.exe
      arp -d
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    71KB

    MD5

    4fcd7574537cebec8e75b4e646996643

    SHA1

    efa59bb9050fb656b90d5d40c942fb2a304f2a8b

    SHA256

    8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

    SHA512

    7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

  • memory/1140-4-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/1140-6-0x00000000000B1000-0x00000000000B2000-memory.dmp

    Filesize

    4KB

  • memory/1140-9-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/1140-11-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/1140-10-0x00000000000B0000-0x000000000013B000-memory.dmp

    Filesize

    556KB

  • memory/1140-13-0x00000000000B0000-0x000000000013B000-memory.dmp

    Filesize

    556KB

  • memory/1140-15-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB