Analysis

  • max time kernel
    90s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 02:21

General

  • Target

    Infrared Thermometer~pdf.exe

  • Size

    1.2MB

  • MD5

    cbc2a4c4b531711337eb807fbd082adc

  • SHA1

    f9114fe1e6ebe680831900fce56fde5ed2a748eb

  • SHA256

    2ae247545c4291da9b83ad9ba0c6af00bd80c896a3fb9fafd028e09444bf3baf

  • SHA512

    e5649d648c989049af1dd13c12f397483935d019e93e655801f51f642f7db8bd536c945b4ef92a1f46ff73e8e8952ddb397857c935408e52862543c0a58a92e2

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mapi.diplemailsrvr.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Banachi@1974

Signatures

  • Disables RegEdit via registry modification
  • Disables Task Manager via registry modification
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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\Infrared Thermometer~pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Infrared Thermometer~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:4508
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
      "C:\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\InstallUtil.exe"
      2⤵
        PID:4672
      • 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:4700
        • 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:4928
        • C:\Windows\SysWOW64\netsh.exe
          "netsh" wlan show profile
          3⤵
            PID:1992

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Defense Evasion

      Modify Registry

      2
      T1112

      Discovery

      Query Registry

      1
      T1012

      Peripheral Device Discovery

      1
      T1120

      System Information Discovery

      1
      T1082

      Collection

      Email Collection

      1
      T1114

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1992-135-0x0000000000000000-mapping.dmp
      • memory/4508-130-0x0000000000E70000-0x0000000000FA0000-memory.dmp
        Filesize

        1.2MB

      • memory/4508-131-0x0000000005F60000-0x0000000006504000-memory.dmp
        Filesize

        5.6MB

      • memory/4700-132-0x0000000000000000-mapping.dmp
      • memory/4700-133-0x0000000072090000-0x0000000072641000-memory.dmp
        Filesize

        5.7MB

      • memory/4928-134-0x0000000000000000-mapping.dmp