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Analysis

  • max time kernel
    118s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/08/2023, 11:36

General

  • Target

    aac28e41f79d0282090f13652acf646655e0df0d44016c14e41a3a45908a6f65.exe

  • Size

    2.9MB

  • MD5

    54cdab164a3f2d41de8de15b042a2e9b

  • SHA1

    4ed8d138bd9dd833344a970c0b839ed7144d2921

  • SHA256

    aac28e41f79d0282090f13652acf646655e0df0d44016c14e41a3a45908a6f65

  • SHA512

    50ef846ea93a0a027d85621158b5e5f7cf3c72d16616331ef8d86e19d2c96502d8e7722255e2bea0cb4cfa6c063cbc241dcea04449ffe2b5547c9db2449a5bc0

  • SSDEEP

    49152:m3zmDgafPfcAPIdDEDiy88Ej0qN8Vfdc9D+vtnKk1iYSYaLXUZqNL/7F5adkQXKv:m5DEWym0qNEf28tSYaLXyqNLTWkWKmIt

Malware Config

Signatures

  • UPX packed file 29 IoCs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aac28e41f79d0282090f13652acf646655e0df0d44016c14e41a3a45908a6f65.exe
    "C:\Users\Admin\AppData\Local\Temp\aac28e41f79d0282090f13652acf646655e0df0d44016c14e41a3a45908a6f65.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    PID:5072
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5072 -s 2256
      2⤵
      • Program crash
      PID:4956
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5072 -ip 5072
    1⤵
      PID:1632

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/5072-133-0x0000000000400000-0x0000000000E5C61F-memory.dmp

      Filesize

      10.4MB

    • memory/5072-134-0x0000000000400000-0x0000000000E5C61F-memory.dmp

      Filesize

      10.4MB

    • memory/5072-135-0x0000000000400000-0x0000000000E5C61F-memory.dmp

      Filesize

      10.4MB

    • memory/5072-138-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-140-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-141-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-142-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-143-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-144-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-146-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-148-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-150-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-152-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-154-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-156-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-158-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-160-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-162-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-163-0x0000000000400000-0x0000000000E5C61F-memory.dmp

      Filesize

      10.4MB

    • memory/5072-165-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-167-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-169-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-171-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-173-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-175-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-177-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-179-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-181-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-183-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-185-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-187-0x0000000003AA0000-0x0000000003AB8000-memory.dmp

      Filesize

      96KB

    • memory/5072-188-0x0000000036E70000-0x0000000036E80000-memory.dmp

      Filesize

      64KB

    • memory/5072-191-0x0000000010000000-0x000000001003E000-memory.dmp

      Filesize

      248KB

    • memory/5072-202-0x0000000000400000-0x0000000000E5C61F-memory.dmp

      Filesize

      10.4MB

    • memory/5072-203-0x0000000003AA0000-0x0000000003AB8000-memory.dmp

      Filesize

      96KB