Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27/09/2022, 10:16

General

  • Target
    71a71b31d3efffb3deb678ed63a786ef.exe
  • Size 469KB
  • Sample220927-mas4lsdca2
  • SHA256 0773f517b40992fd3e6291eb906558588f1de9e3887bb2433f95bb4ea9f5904a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\71a71b31d3efffb3deb678ed63a786ef.exe
    "C:\Users\Admin\AppData\Local\Temp\71a71b31d3efffb3deb678ed63a786ef.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\71a71b31d3efffb3deb678ed63a786ef.exe
      C:\Users\Admin\AppData\Local\Temp\71a71b31d3efffb3deb678ed63a786ef.exe /stext "C:\Users\Admin\AppData\Local\Temp\mohifehmksopqbrrxvdsemodrsjhj"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1492
    • C:\Users\Admin\AppData\Local\Temp\71a71b31d3efffb3deb678ed63a786ef.exe
      C:\Users\Admin\AppData\Local\Temp\71a71b31d3efffb3deb678ed63a786ef.exe /stext "C:\Users\Admin\AppData\Local\Temp\wjmafwzfyagcahfvggyupzjmahbiczfpw"
      2⤵
      • Accesses Microsoft Outlook accounts
      PID:980
    • C:\Users\Admin\AppData\Local\Temp\71a71b31d3efffb3deb678ed63a786ef.exe
      C:\Users\Admin\AppData\Local\Temp\71a71b31d3efffb3deb678ed63a786ef.exe /stext "C:\Users\Admin\AppData\Local\Temp\glsly"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1820

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        mohifehmksopqbrrxvdsemodrsjhj

        • Path C:\Users\Admin\AppData\Local\Temp\mohifehmksopqbrrxvdsemodrsjhj
        • Size 2B
        • SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
        • MD5 SHA1 SHA512

        memory/980-64-0x0000000000400000-0x0000000000457000-memory.dmp

        memory/980-65-0x0000000000400000-0x0000000000457000-memory.dmp

        memory/1492-62-0x0000000000400000-0x0000000000478000-memory.dmp

        memory/1820-61-0x0000000000400000-0x0000000000424000-memory.dmp

        memory/2024-54-0x0000000075F81000-0x0000000075F83000-memory.dmp