Analysis

  • max time kernel
    144s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-09-2024 18:36

General

  • Target

    artifact.exe

  • Size

    178KB

  • MD5

    22a91930458ed41136ef88cd7fd978c3

  • SHA1

    a20015e3e22ada90ba646e2ab6c4d2ae7d1c3dfb

  • SHA256

    7b14a5c267d51a533b1d77b557b03c3437e7e59f699deafbb6c196cbdf38d931

  • SHA512

    6e4dd8356ab809c6d9a76fa90e7a3909917cd8035404e09046fa3e3a8ec215f6932edf5097d3603c7c68ba3e084fd8aeb038bd7b98fd32f725deae5a49cae600

  • SSDEEP

    3072:AwR8p6hiq3EyQIrZhbSJKbsQvVqRlkM4OAD/KLznBuB2JA2BjcH:AwR8p68qUY5bsQvMRlkM4RD/qzMfUi

Malware Config

Signatures

  • 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
  • UPX packed file 6 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.

  • Network Service Discovery 1 TTPs 9 IoCs

    Attempt to gather information on host's network.

  • 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 4 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\artifact.exe
    "C:\Users\Admin\AppData\Local\Temp\artifact.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:2208
    • C:\Windows\SysWOW64\arp.exe
      arp -a
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2484
    • C:\Windows\SysWOW64\arp.exe
      arp -s 10.127.0.1 1f-3c-2b-a7-b4-03
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2336
    • C:\Windows\SysWOW64\arp.exe
      arp -s 10.127.255.255 79-23-67-37-4a-61
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2340
    • C:\Windows\SysWOW64\arp.exe
      arp -s 37.27.61.183 00-b5-ba-32-23-85
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2352
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.22 01-1e-1b-7f-a9-a0
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2424
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.251 ef-b1-62-11-ae-42
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2836
    • C:\Windows\SysWOW64\arp.exe
      arp -s 224.0.0.252 81-ac-35-c8-52-e8
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2652
    • C:\Windows\SysWOW64\arp.exe
      arp -s 239.255.255.250 6c-d6-51-d8-5d-06
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:1108
    • C:\Windows\SysWOW64\arp.exe
      arp -s 255.255.255.255 99-3d-75-4e-95-6c
      2⤵
      • Network Service Discovery
      • System Location Discovery: System Language Discovery
      PID:2504
    • C:\Windows\SysWOW64\arp.exe
      arp -d
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    71KB

    MD5

    4fcd7574537cebec8e75b4e646996643

    SHA1

    efa59bb9050fb656b90d5d40c942fb2a304f2a8b

    SHA256

    8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

    SHA512

    7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

  • memory/2208-0-0x0000000000D80000-0x0000000000D9D000-memory.dmp

    Filesize

    116KB

  • memory/2208-4-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/2208-10-0x0000000000D80000-0x0000000000D9D000-memory.dmp

    Filesize

    116KB

  • memory/2208-11-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/2208-12-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/2208-19-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB

  • memory/2208-22-0x0000000010000000-0x0000000010033000-memory.dmp

    Filesize

    204KB