Overview

overview

7

Static

static

7

rufus-3.21.exe

windows7-x64

7

rufus-3.21.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    68s
  • max time network
    60s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-02-2023 01:43

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General

  • Target

    rufus-3.21.exe

  • Size

    1.3MB

  • MD5

    c2ab67a2561ac7f5add3256fe9bf85d4

  • SHA1

    cc5742d1f128c439740a56734c0e105f11a62fe6

  • SHA256

    d0554f1fc47407d678a4d8eace607272013c475033b636bfb1824ed6b1a22e36

  • SHA512

    936ffc79313ebd47ad41f13c5e922d77f4d58c43f0c4df3daf3caff06bf8ca0cb2586c63c685b1c60ffe9d24ce1815ea2fe02d09e4618ba7cef897dffaa01467

  • SSDEEP

    24576:3sqLY/SQe/JGy8U6epCdC4B4K8cvKBUlrVI3r+B4lz/i/ywNRhjSFOA:jYARGyLmCq4VciKlr2b+EjmzSN

Score
7/10
evasiontrojanupx

Malware Config

Signatures

  • UPX packed file 2 IoCs

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

    upx
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Drops file in System32 directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 32 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rufus-3.21.exe
    "C:\Users\Admin\AppData\Local\Temp\rufus-3.21.exe"
    1⤵
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2044
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1608
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:316

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Initial Access

      Execution

      Persistence

      Privilege Escalation

      Defense Evasion

      Credential Access

      Discovery

      System Information Discovery

      2
      T1082

      Lateral Movement

      Collection

      Exfiltration

      Command and Control

      Impact

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2044-54-0x0000000075201000-0x0000000075203000-memory.dmp
        Filesize

        8KB

        Download
      • memory/2044-55-0x0000000000E20000-0x0000000001206000-memory.dmp
        Filesize

        3.9MB

        Download
      • memory/2044-56-0x0000000074661000-0x0000000074663000-memory.dmp
        Filesize

        8KB

        Download
      • memory/2044-57-0x0000000000E20000-0x0000000001206000-memory.dmp
        Filesize

        3.9MB

        Download