Analysis

  • max time kernel
    114s
  • max time network
    74s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-12-2024 14:03

General

  • Target

    1009043023fbac9985a219dddf6e799c3858aa2b224ea762de6ec59bdae7670fN.exe

  • Size

    178KB

  • MD5

    85e70a6c9a3d6939bb443a869be08da0

  • SHA1

    f8247a7db3c2291adb6fba1c5f5a085dd17bb621

  • SHA256

    1009043023fbac9985a219dddf6e799c3858aa2b224ea762de6ec59bdae7670f

  • SHA512

    7b891c07837991dc7570b37a078c4358a558a44bbde23e8a2b355d03e94ca3491e86f8cfb68b5a3c8372719cd43672e7349f79215aabcbd8b042a4253d142994

  • SSDEEP

    3072:GGR826hD6O5AyQIrZBbSJK5sQvVqRlkM4OAD/KLznBuB2JA2BjG:GGR826l6OaYZ5sQvMRlkM4RD/qzMfUi

Malware Config

Signatures

  • Floxif family
  • Floxif, Floodfix

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

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • 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 6 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • Modifies registry class 27 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1009043023fbac9985a219dddf6e799c3858aa2b224ea762de6ec59bdae7670fN.exe
    "C:\Users\Admin\AppData\Local\Temp\1009043023fbac9985a219dddf6e799c3858aa2b224ea762de6ec59bdae7670fN.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Windows\SysWOW64\arp.exe
      arp -a
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2364
    • C:\Windows\SysWOW64\arp.exe
      arp -s 10.127.0.1 68-1e-ee-11-01-49
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:3012
    • C:\Windows\SysWOW64\arp.exe
      arp -s 10.127.255.255 f1-07-f8-5e-65-6c
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2528
    • C:\Windows\SysWOW64\arp.exe
      arp -s 37.27.61.180 22-5e-c4-02-41-e0
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2380
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.22 d5-a3-e2-1c-e2-8b
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2028
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.251 39-ac-a2-25-7b-ca
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2144
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.252 b9-d4-84-f8-fd-04
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2816
    • C:\Windows\SysWOW64\arp.exe
      arp -s 239.255.255.250 c2-90-82-8c-fa-80
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2220
    • C:\Windows\SysWOW64\arp.exe
      arp -s 255.255.255.255 11-d7-1c-1a-ce-8a
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2696
    • C:\Windows\SysWOW64\arp.exe
      arp -d
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1944

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/3040-3-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/3040-11-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/3040-10-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/3040-9-0x0000000000AB0000-0x0000000000ACC000-memory.dmp

    Filesize

    112KB

  • memory/3040-18-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/3040-21-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB