Overview

overview

8

Static

static

N95 AND KN...DF.exe

windows7_x64

8

N95 AND KN...DF.exe

windows10-2004_x64

8

Analysis

  • max time kernel
    131s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:32

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General

  • Target

    N95 AND KN95 MASK PICTURES~PDF.exe

  • Size

    869KB

  • MD5

    d21527bda4967799ac00097cb91dde6c

  • SHA1

    fb38cb0a433366d6d58b7de799e071b9311b840a

  • SHA256

    3afc04e4f98aeb4c05a9648ac3a0e1f90788035bc41322bba868fdd982517e42

  • SHA512

    5dac8cbe1db8f3593b251d76558108fb43d6253b3eb650a8aef93a4ad5d20fa2b508acf63ae0e30ce8a6dcd04f03761bbec59f96f43fe5bcf1f1cd0843205099

Score
8/10
collectionevasionpersistence

Malware Config

Signatures

  • Disables Task Manager via registry modification
    evasion
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\N95 AND KN95 MASK PICTURES~PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\N95 AND KN95 MASK PICTURES~PDF.exe"
    1⤵
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4376
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
      "C:\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\InstallUtil.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:2172
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
        3⤵
        • Modifies registry key
        PID:4852
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:4736
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
        "C:\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\InstallUtil.exe"
        2⤵
          PID:3236

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/2172-132-0x0000000000000000-mapping.dmp

        Download

      • memory/2172-134-0x00000000721E0000-0x0000000072791000-memory.dmp

        Filesize

        5.7MB

        Download

      • memory/4376-130-0x0000000000040000-0x0000000000120000-memory.dmp

        Filesize

        896KB

        Download

      • memory/4376-131-0x00000000051D0000-0x0000000005774000-memory.dmp

        Filesize

        5.6MB

        Download

      • memory/4376-133-0x0000000002440000-0x0000000002443000-memory.dmp

        Filesize

        12KB

        Download

      • memory/4736-136-0x0000000000000000-mapping.dmp

        Download

      • memory/4852-135-0x0000000000000000-mapping.dmp

        Download