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Overview

overview

10

Static

static

stud.exe

windows7_x64

10

stud.exe

windows10_x64

8

Analysis

  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    07/07/2020, 09:52

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General

  • Target

    stud.exe

  • Size

    755KB

  • MD5

    6044900d66376321ad6f237d1b465ecc

  • SHA1

    0147db0583256b648680a54573b288f9167cca67

  • SHA256

    9099123ab27c467c09e2483339756820e29e6d8cd3d0346305d3873902e4af65

  • SHA512

    03fdca6dfdccc2a17abbfb42adfb5a89a5e2a32b9929efde0689da17967db406dd55f057162d2324605254c354130c8b73077fa9bc4bf23053878ffc5f239076

Score
10/10
spywareevasiontrojanstealerformbookpersistence

Malware Config

Signatures

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Drops file in Program Files directory 1 IoCs
  • System policy modification 1 TTPs 1 IoCs
    evasion
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Adds Run entry to policy start application 2 TTPs 2 IoCs
    persistence
  • Suspicious use of SetThreadContext 3 IoCs
  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

    trojanspywarestealerformbook
  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Checks whether UAC is enabled
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1284
    • C:\Users\Admin\AppData\Local\Temp\stud.exe
      "C:\Users\Admin\AppData\Local\Temp\stud.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      • Suspicious behavior: MapViewOfSection
      PID:1400
      • C:\Users\Admin\AppData\Local\Temp\stud.exe
        "C:\Users\Admin\AppData\Local\Temp\stud.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1432
    • C:\Windows\SysWOW64\wlanext.exe
      "C:\Windows\SysWOW64\wlanext.exe"
      2⤵
      • Modifies Internet Explorer settings
      • Drops file in Program Files directory
      • System policy modification
      • Adds Run entry to policy start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:480
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\stud.exe"
        3⤵
        • Deletes itself
        PID:1016
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:524

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/480-6-0x0000000075E40000-0x0000000075F9C000-memory.dmp

      Filesize

      1.4MB

      Download

    • memory/480-5-0x0000000002F20000-0x0000000002FFE000-memory.dmp

      Filesize

      888KB

      Download

    • memory/480-7-0x00000000032F0000-0x00000000033C8000-memory.dmp

      Filesize

      864KB

      Download

    • memory/480-3-0x0000000000120000-0x0000000000136000-memory.dmp

      Filesize

      88KB

      Download

    • memory/524-9-0x000000013F520000-0x000000013F5B3000-memory.dmp

      Filesize

      588KB

      Download

    • memory/1432-0-0x0000000000400000-0x000000000042D000-memory.dmp

      Filesize

      180KB

      Download