Analysis

  • max time kernel
    93s
  • 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
    20-11-2024 22:40

General

  • Target

    d8d5506a8575bd823be3a37f55b77ee26ed73b99f9139980223f44ae0255215cN.exe

  • Size

    780KB

  • MD5

    3be4f6b0428a27e92bd553c4c71a3810

  • SHA1

    371e9a4a2497b087f64fecb35888f3bbc1947b1f

  • SHA256

    d8d5506a8575bd823be3a37f55b77ee26ed73b99f9139980223f44ae0255215c

  • SHA512

    ee128f2a47f7a47121a576b64f3c77256341a15cd258f6f777663f974219748ecf89d9f194188dde78ce0d55398338b7c15ccd8468ab4430606eb8e2aeed841c

  • SSDEEP

    24576:XVeP7nPwZfon1DUbKx4wuL9egqTT2lgJBhrEH7l:XVer0Qn1eKywuLJqT6lJ

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.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 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 4 IoCs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d8d5506a8575bd823be3a37f55b77ee26ed73b99f9139980223f44ae0255215cN.exe
    "C:\Users\Admin\AppData\Local\Temp\d8d5506a8575bd823be3a37f55b77ee26ed73b99f9139980223f44ae0255215cN.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:756
    • \??\c:\82e42d77f7965750dc0405\update\update.exe
      c:\82e42d77f7965750dc0405\update\update.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:4092

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\82e42d77f7965750dc0405\update\UPDSPAPI.dll.tmp

    Filesize

    458KB

    MD5

    d9416676c1731194685af48de67127fa

    SHA1

    5e04fc7694aa9d4d43abdcaef56a198a45a69526

    SHA256

    f0ee29b41ad1dfde701a78108cf4cb0465db8095219387a42fcf82ba80be0d65

    SHA512

    5d934fc11bfb0966ba00ebed15cdaa299c9ce3f9d167ee236c3c254a4cd6ff4d7c2264e4dba76ba1e7c3741f270713953eb7f6d601fc1424f92a67292337f1e7

  • C:\82e42d77f7965750dc0405\update\update.exe

    Filesize

    708KB

    MD5

    ef8c087ea6dea33219d1a725f60f1f1b

    SHA1

    2bbc0e3e7b67c5f2b91313aa62bce60ff81d1d53

    SHA256

    b13f5d2a271c04c3a7d002dae05f756af5b58b601c8e9d7a1f5845a2ed39f3d2

    SHA512

    582e155150c5c0003c8e081f23b8555454b2ea4c91b9301214db9c11fe405b425cfc07e010052615eaa8b3e5b6393f21f856f9a789f9daa3743cb1f4bb8efae0

  • C:\82e42d77f7965750dc0405\update\updspapi.dll

    Filesize

    382KB

    MD5

    75c0fa7a2472e8a636f1df3f77681459

    SHA1

    54c260b1bb8213d238ce9dec82f91d4f80439811

    SHA256

    ec0f75f118aebea34bf2254c363c67da1954da3789532f15d65ef9191dcf25f3

    SHA512

    30376fa23ca3e0fabade43359856a609b64846acab2d91dc0eade865ae746643b2af3f864cb65b77b17d1d29bcdc33d87a848feae08613ec71d8bdc6decaa39e

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

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • \??\c:\82e42d77f7965750dc0405\update\update.inf

    Filesize

    8KB

    MD5

    80c9328770edfb595096364749ed88e7

    SHA1

    4b6a4683e23a01264ea3358ecd56713c7c631e0e

    SHA256

    e51cb4919d015b07fa2d4f52727b4aeba95ee2a8be2802c75f9b30973050f1e9

    SHA512

    40ed688175d58eeec3be6215baaad2650ad86b7345b3c500ca47cda0871dcb4c5fec8815666a30a01222009d510a0533f13d2de2136f8833e6577e5a86e95e0d

  • memory/756-4-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/756-6-0x0000000001005000-0x0000000001006000-memory.dmp

    Filesize

    4KB

  • memory/756-49-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/756-76-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4092-34-0x0000000000560000-0x00000000005C1000-memory.dmp

    Filesize

    388KB

  • memory/4092-51-0x0000000000560000-0x00000000005C1000-memory.dmp

    Filesize

    388KB

  • memory/4092-54-0x0000000000560000-0x00000000005C1000-memory.dmp

    Filesize

    388KB