Analysis

  • max time kernel
    148s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 14:36

General

  • Target

    36b8ffd1ce553c07824f1cfd0597d7c2c483396fc9872910c684b68462c846c8.exe

  • Size

    393KB

  • MD5

    6ad94ce6af8bb44d3e2a61093069e53a

  • SHA1

    b20717e718355d078f86ce2a2fbe8bae8051e51e

  • SHA256

    36b8ffd1ce553c07824f1cfd0597d7c2c483396fc9872910c684b68462c846c8

  • SHA512

    dbe80225f2c83b375a8f6343b7d1ac35491c6134a36fa6ceabc6201c8e0c82c862fa35bf9da2e2b2ab919b0b8fe96286a6729ff61f2006b9d3c1247f2fc950bf

  • SSDEEP

    12288:ClnaENFrl0QnjvyUh6D4k7C1oqJW1t1zK:CxaENB/jvye6D4iC1v8Q

Malware Config

Signatures

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • Nirsoft 9 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\36b8ffd1ce553c07824f1cfd0597d7c2c483396fc9872910c684b68462c846c8.exe
    "C:\Users\Admin\AppData\Local\Temp\36b8ffd1ce553c07824f1cfd0597d7c2c483396fc9872910c684b68462c846c8.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1768
    • C:\Users\Admin\AppData\Local\Temp\36b8ffd1ce553c07824f1cfd0597d7c2c483396fc9872910c684b68462c846c8.exe
      "C:\Users\Admin\AppData\Local\Temp\36b8ffd1ce553c07824f1cfd0597d7c2c483396fc9872910c684b68462c846c8.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1064
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\logff.txt
        3⤵
          PID:1892
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\logmail.txt
          3⤵
          • Accesses Microsoft Outlook accounts
          PID:1372
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\sLdpgoNg.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:516
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\sLdpgoNg.exe
          3⤵
          • Adds Run key to start application
          PID:976

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\logff.txt

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • memory/516-71-0x0000000000000000-mapping.dmp

    • memory/976-72-0x0000000000000000-mapping.dmp

    • memory/1064-63-0x0000000000400000-0x0000000000476000-memory.dmp

      Filesize

      472KB

    • memory/1064-59-0x0000000000400000-0x0000000000476000-memory.dmp

      Filesize

      472KB

    • memory/1064-61-0x0000000000400000-0x0000000000476000-memory.dmp

      Filesize

      472KB

    • memory/1064-76-0x0000000073F00000-0x00000000744AB000-memory.dmp

      Filesize

      5.7MB

    • memory/1064-65-0x00000000004704FE-mapping.dmp

    • memory/1064-67-0x0000000000400000-0x0000000000476000-memory.dmp

      Filesize

      472KB

    • memory/1064-69-0x0000000000400000-0x0000000000476000-memory.dmp

      Filesize

      472KB

    • memory/1064-56-0x0000000000400000-0x0000000000476000-memory.dmp

      Filesize

      472KB

    • memory/1064-55-0x0000000000400000-0x0000000000476000-memory.dmp

      Filesize

      472KB

    • memory/1064-73-0x0000000073F00000-0x00000000744AB000-memory.dmp

      Filesize

      5.7MB

    • memory/1064-74-0x0000000000E66000-0x0000000000E77000-memory.dmp

      Filesize

      68KB

    • memory/1064-77-0x0000000000E66000-0x0000000000E77000-memory.dmp

      Filesize

      68KB

    • memory/1372-93-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1372-94-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1372-107-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1372-106-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1372-105-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1372-102-0x0000000000411654-mapping.dmp

    • memory/1372-101-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1372-99-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1372-98-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1372-96-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1768-58-0x0000000073F00000-0x00000000744AB000-memory.dmp

      Filesize

      5.7MB

    • memory/1768-75-0x0000000073F00000-0x00000000744AB000-memory.dmp

      Filesize

      5.7MB

    • memory/1768-54-0x0000000075931000-0x0000000075933000-memory.dmp

      Filesize

      8KB

    • memory/1892-91-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/1892-90-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/1892-87-0x000000000040E758-mapping.dmp

    • memory/1892-86-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/1892-84-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/1892-83-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/1892-81-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/1892-79-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/1892-78-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB