Overview

overview

10

Static

static

1

2025-02-18...ia.exe

windows7-x64

10

2025-02-18...ia.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    18-02-2025 08:26

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General

  • Target

    2025-02-18_562fee75168440d69f02418235a1ad33_floxif_mafia.exe

  • Size

    1.8MB

  • MD5

    562fee75168440d69f02418235a1ad33

  • SHA1

    38ec0e4aea184e5d799ad147b8ea025649688aad

  • SHA256

    7264469a3aea112fc7642310c58e31c96a656f08abd1115b864a9d519a52d28c

  • SHA512

    85bc71a573686a6b5197109521cb04a4506d60ba9eebb2f23f0587edd5bfa2c1f43a1ad437a81c31c24b2e28dd32a3f78fb1095e60464208990d7b6d61c86d89

  • SSDEEP

    49152:kpEbew1gkZV2HXsMnmjEREseBSsxHnfXsrHYiKYiliv/:JaYtYj

Score
10/10
floxifbackdoordiscoverypersistencetrojanupx

Malware Config

Signatures

  • Floxif family
    floxif
  • Floxif, Floodfix

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

    backdoortrojanfloxif
  • Detects Floxif payload 1 IoCs
    backdoor
  • Drops file in Drivers directory 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Modifies system executable filetype association 2 TTPs 64 IoCs
    persistence
  • 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 10 IoCs

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

    upx
  • Drops file in Program Files directory 2 IoCs
  • 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.

    discovery
  • Modifies registry class 64 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-02-18_562fee75168440d69f02418235a1ad33_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-18_562fee75168440d69f02418235a1ad33_floxif_mafia.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:1104
    • C:\Users\Admin\AppData\Local\Temp\2025-02-18_562fee75168440d69f02418235a1ad33_floxif_mafia64.exe
      C:\Users\Admin\AppData\Local\Temp\2025-02-18_562fee75168440d69f02418235a1ad33_floxif_mafia.exe
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2756
      • C:\Windows\System32\Notepad.exe
        Notepad.exe C:\Users\Admin\Desktop\Rkill.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:1312

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    175B

    MD5

    1130c911bf5db4b8f7cf9b6f4b457623

    SHA1

    48e734c4bc1a8b5399bff4954e54b268bde9d54c

    SHA256

    eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

    SHA512

    94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

    Download Submit

  • C:\Users\Admin\Desktop\Rkill.txt
    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    Download Submit

  • C:\Users\Admin\Desktop\Rkill.txt
    Filesize

    3KB

    MD5

    4c40dabc3c0c92323a7c590e6011ea37

    SHA1

    e9734f23a59d6666b6827d31e8ec91d702587428

    SHA256

    470f7b1d36b8b5e43fb568462e6caa3de3b1dad8f9cf20052c8d2c1529eac41e

    SHA512

    7983be45244eb0d6e297c08d3963d3d4d3b7d242706e6c9768c594ca94d85c993914dfed1dde4e649a871764d28aafb0e02bbc7f29a623dc39690a7b6e7ba54c

    Download Submit

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

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

    Download Submit

  • \Users\Admin\AppData\Local\Temp\2025-02-18_562fee75168440d69f02418235a1ad33_floxif_mafia64.exe
    Filesize

    960KB

    MD5

    0b768337711afaf41e40ba8f242c79cc

    SHA1

    10ae8a2b53a9853631375b307f4a6b572a61b391

    SHA256

    ebf4f6d4cd5eed24fe46f834c3b942e02a6e4c9ad3ba8fbaac61e4d0fd104e73

    SHA512

    3abdacf0f17bad81829247d4504e48504560623bca08c6ee188ba9dfda4789892ec0b8ea647eff1c28d6d7577b971db0113af4e161c25096d401d73ecaa230d0

    Download Submit

  • memory/1104-38-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/1104-28-0x0000000001380000-0x000000000153E000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/1104-34-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/1104-29-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/1104-42-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/1104-30-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/1104-46-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/1104-53-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/1104-56-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download

  • memory/1104-54-0x0000000001380000-0x000000000153E000-memory.dmp

    Filesize

    1.7MB

    Download

  • memory/1104-3-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

    Download