Overview

overview

10

Static

static

10

2024-05-20...ia.exe

windows7-x64

9

2024-05-20...ia.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    20/05/2024, 10:27

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General

  • Target

    2024-05-20_2940a89e0783650e3be081e9ba4bad13_floxif_mafia.exe

  • Size

    1.8MB

  • MD5

    2940a89e0783650e3be081e9ba4bad13

  • SHA1

    3507f9c6e5d7cf3c68e056898480db58ee6b1444

  • SHA256

    e8e80b7a78b1111d7e055332ad56433660fe5093f6d5e6d500c241091b446e36

  • SHA512

    a00d391b36f9e9e8bacba0909b115982b202cb835ed2fdd032f8c1897bc3070de31319f4028dc36148ea14d5a7c63281bc08452976bcfafb9814641f46306670

  • SSDEEP

    49152:BpENgw14kZV2HXsMnmjEREseBSsxHnfXsrHYi2Yijiz:QwYJYx

Score
9/10
persistenceupx

Malware Config

Signatures

  • Detects executables embedding registry key / value combination indicative of disabling Windows Defender features 3 IoCs
  • Detects executables referencing many IR and analysis tools 3 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Modifies AppInit DLL entries 2 TTPs
    persistence
  • 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
  • UPX packed file 5 IoCs

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

    upx
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Modifies registry class 64 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 3 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\2024-05-20_2940a89e0783650e3be081e9ba4bad13_floxif_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-20_2940a89e0783650e3be081e9ba4bad13_floxif_mafia.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2124
    • C:\Users\Admin\AppData\Local\Temp\2024-05-20_2940a89e0783650e3be081e9ba4bad13_floxif_mafia64.exe
      C:\Users\Admin\AppData\Local\Temp\2024-05-20_2940a89e0783650e3be081e9ba4bad13_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:2616
      • C:\Windows\System32\Notepad.exe
        Notepad.exe C:\Users\Admin\Desktop\Rkill.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:2568

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • 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

          d401ac9e4c4f9d04d89c5396e7bd193d

          SHA1

          f0efb21a19858c40047636b47ccb5f556b9e646b

          SHA256

          1fd4891f8fb1c1f5258d38d06b952c28504c27b54131d88b548ec0ba7d36e3fd

          SHA512

          6a0114edb5f876fcc3931e69e5954a772c65f881b6f3237c9fd374b318a92bbc445c0c3ea8170dd04ce3d4170654f2f6f19993b792496f2a7835fab64cb4d1a5

          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\2024-05-20_2940a89e0783650e3be081e9ba4bad13_floxif_mafia64.exe
          Filesize

          964KB

          MD5

          ae368c10327fe7a8e5c875360e529b35

          SHA1

          d69fad67631f48f2eee9109a368eb176356da531

          SHA256

          797f0917162e74e64f556fd467cc13d10401e826309c3ed889574889a96b88c7

          SHA512

          e7e6e4d29dfdc537b21fdffc6c1ac0674b55fdf6c61e5fecfbdde1fa271903db1291c50bac3263bc9f4ee7797689542f29770e0d98b8180453c39bc6058a5c67

          Download Submit

        • memory/2124-3-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

          Download

        • memory/2124-30-0x0000000000DC0000-0x0000000000F7F000-memory.dmp

          Filesize

          1.7MB

          Download

        • memory/2124-31-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

          Download

        • memory/2124-38-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

          Download

        • memory/2124-43-0x0000000010000000-0x0000000010030000-memory.dmp

          Filesize

          192KB

          Download

        • memory/2124-41-0x0000000000DC0000-0x0000000000F7F000-memory.dmp

          Filesize

          1.7MB

          Download