Overview

overview

10

Static

static

9

2026-04-23...op.exe

windows10-2004-x64

10

2026-04-23...op.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    2026-04-23_95086fa72ad31da3a4687668f53854f1_elex_emotet_floxif_remcos_stop
  • Size 3.6MB
  • Sample260423-ttf2qaax61
  • SHA256 a06cb4ab3faa7ba3aaaac2f1d0c91c78d39a65fa42ef247793f95e91945c3c60
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
floxifbackdoorbootkitcryptonediscoverypackerpersistencetrojanupx

Malware Config

Targets

    • Target
      2026-04-23_95086fa72ad31da3a4687668f53854f1_elex_emotet_floxif_remcos_stop
    • Size 3.6MB
    • SHA256 a06cb4ab3faa7ba3aaaac2f1d0c91c78d39a65fa42ef247793f95e91945c3c60
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    backdoorbootkitdiscoveryfloxifpersistencetrojanupx

    • Family: Floxif, Floodfix

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

      backdoortrojanfloxif

    • Detects Floxif payload

      backdoor

    • UPX dump on OEP (original entry point)

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • UPX packed file

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

      upx
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks