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Analysis

  • max time kernel
    39s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28/11/2022, 18:54

General

  • Target

    5adf2984baa91b53d1c812a86de9ff547770fbdcf24c37655a5c1419b2f90fa7.exe

  • Size

    1008KB

  • MD5

    c8b0180a2c70e715a0dadaa90973543a

  • SHA1

    a80187865a735580ceddb0f0d8dee79be10206ae

  • SHA256

    5adf2984baa91b53d1c812a86de9ff547770fbdcf24c37655a5c1419b2f90fa7

  • SHA512

    14d6592830722e0be9bbf5f8395a1effc1fa64d68b97a71e149e588f0c16fef4a9f141fe34c3e61cdf9c1f172b189f76a8c06566001ff35c929adade7dc4fb8d

  • SSDEEP

    24576:gW6clRhnJG7oxHLqNcqjgAxl/Ze05uP2rQhv9jZFBbXfJ/:gW6GRFc7oxmNLjgAX/ZTDunFBbB

Malware Config

Signatures

  • ISR Stealer

    ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

  • ISR Stealer payload 5 IoCs
  • UPX packed file 6 IoCs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 2 IoCs
  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5adf2984baa91b53d1c812a86de9ff547770fbdcf24c37655a5c1419b2f90fa7.exe
    "C:\Users\Admin\AppData\Local\Temp\5adf2984baa91b53d1c812a86de9ff547770fbdcf24c37655a5c1419b2f90fa7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1892
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        /scomma "C:\Users\Admin\AppData\Local\Temp\c6RXe3jQto.ini"
        3⤵
          PID:944
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1892 -s 288
          3⤵
          • Program crash
          PID:1772

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/944-77-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/944-76-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/944-75-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/944-74-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/944-71-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/944-67-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/1892-73-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1892-62-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1892-60-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1892-58-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1892-57-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1892-79-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2040-68-0x0000000074460000-0x0000000074A0B000-memory.dmp

      Filesize

      5.7MB

    • memory/2040-54-0x00000000762D1000-0x00000000762D3000-memory.dmp

      Filesize

      8KB

    • memory/2040-56-0x0000000074460000-0x0000000074A0B000-memory.dmp

      Filesize

      5.7MB

    • memory/2040-55-0x0000000074460000-0x0000000074A0B000-memory.dmp

      Filesize

      5.7MB