Analysis

  • max time kernel
    117s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/11/2024, 06:07

General

  • Target

    5438fc72599780bfe9b69d20345706d403088e71f4e84b794636762cff8fbc8bN.exe

  • Size

    622KB

  • MD5

    d667193e604a0f89841ffe8c6f33dd60

  • SHA1

    5d3cfaefda3b57fe6692d9a0d880b4bb9df86bd9

  • SHA256

    5438fc72599780bfe9b69d20345706d403088e71f4e84b794636762cff8fbc8b

  • SHA512

    157b7ac80553a14f38fc8b1feed47b189f5ac5e0d6a0bed40f762c574bb79a10c562a29bfb039c7f30bc70e14206fb26d92dad769dfaa989f76b4907369e0953

  • SSDEEP

    12288:TEVEAogrdi0BMP9BK3nNSIOqRltCPadQqrB7gD92rJQhYHXejWC+Qe3BjvrEH7h:sdL1t3cIOqgPaPaIWhYHXej7orEH7h

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 3 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • UPX packed file 7 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 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5438fc72599780bfe9b69d20345706d403088e71f4e84b794636762cff8fbc8bN.exe
    "C:\Users\Admin\AppData\Local\Temp\5438fc72599780bfe9b69d20345706d403088e71f4e84b794636762cff8fbc8bN.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
    PID:4880

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          67KB

          MD5

          7574cf2c64f35161ab1292e2f532aabf

          SHA1

          14ba3fa927a06224dfe587014299e834def4644f

          SHA256

          de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

          SHA512

          4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

        • C:\Program Files\Common Files\System\symsrv.dll.000

          Filesize

          175B

          MD5

          1130c911bf5db4b8f7cf9b6f4b457623

          SHA1

          48e734c4bc1a8b5399bff4954e54b268bde9d54c

          SHA256

          eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

          SHA512

          94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

        • C:\Users\Admin\AppData\Local\Temp\nsb706E.tmp\InstallOptions.dll

          Filesize

          12KB

          MD5

          99bc22826a0568dce241be3a4ffd0c0d

          SHA1

          62e4662250abdf10d23a61076fd7cbd00a5c5b6f

          SHA256

          120e4fac0538b7e7b75934706668063a4e7785d0405dca43fde36d55f6d968de

          SHA512

          35b016b6e2dc850e5432becd57f35faf73b180c0a6f822a406cf9d5439a87126c41c49aac025cdeecd38bbd01705ddbd8c217cb33134e978ecc9624053b52be9

        • C:\Users\Admin\AppData\Local\Temp\nsb706E.tmp\ioSpecial.ini

          Filesize

          519B

          MD5

          d82d41a8a348ec0403b04a929e74c2bf

          SHA1

          b77c228c46346d07dd7a7e8da0590658897e8f5b

          SHA256

          1a39cb8860f7a42c54ff227ccc0da63980938ea39aabd0492d0ae0e460900c02

          SHA512

          14f1c9ea160f0f9bf27c654bda3f94e0b71b5c8e7889b1dfd7e10d3da85f4e8e4e2eeaacfb31d448664a325a390833149579d26a99c9b6433c0bf44038fa450e

        • C:\Users\Admin\AppData\Local\Temp\nsb706E.tmp\ioSpecial.ini

          Filesize

          558B

          MD5

          902604958d262755b8a27b8db2051758

          SHA1

          f473c2711d3b9150383e813ae3a8e750a34589cc

          SHA256

          ec4b56945c263b02180e8600e11a0e3f630b31f8bc43736b4c9b055c9c948536

          SHA512

          c9e9928c3de5fbdd7f6259f5437cd76975aa1a221cc7ea0537da71206a51f37e3a029c2b3ca1042bd6cc262dd276e44b951e2ef46bc94e84fef0c310661c5d82

        • memory/4880-95-0x0000000000400000-0x0000000000434000-memory.dmp

          Filesize

          208KB

        • memory/4880-6-0x0000000000403000-0x0000000000404000-memory.dmp

          Filesize

          4KB

        • memory/4880-98-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/4880-99-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/4880-104-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/4880-4-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/4880-109-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

        • memory/4880-115-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB