Analysis

  • max time kernel
    4294183s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    08-03-2022 19:17

General

  • Target

    4160212ccad25b0ddd5fe75ab813a118abb84ffd55c7a54b2e625d3516812d63.exe

  • Size

    260KB

  • MD5

    f2988c4c21b9b010d5020c1424cd46cf

  • SHA1

    352b9c4f5b156c1f760cf81f0839f4a9eaf5db9a

  • SHA256

    4160212ccad25b0ddd5fe75ab813a118abb84ffd55c7a54b2e625d3516812d63

  • SHA512

    af8db6ed0feef84218f2734f92228c2315cb549fc88d00113880174525d82613600162c56c561f51f38e086490bd3cb9b85aabb39901ee3d59075e9a8d725f2f

Malware Config

Signatures

  • ISR Stealer

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

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • Nirsoft 1 IoCs
  • UPX packed file 6 IoCs

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

  • 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4160212ccad25b0ddd5fe75ab813a118abb84ffd55c7a54b2e625d3516812d63.exe
    "C:\Users\Admin\AppData\Local\Temp\4160212ccad25b0ddd5fe75ab813a118abb84ffd55c7a54b2e625d3516812d63.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1096
    • C:\Users\Admin\AppData\Local\Temp\4160212ccad25b0ddd5fe75ab813a118abb84ffd55c7a54b2e625d3516812d63.exe
      /scomma "C:\Users\Admin\AppData\Local\Temp\ioJvTZDzCs.ini"
      2⤵
        PID:960
      • C:\Users\Admin\AppData\Local\Temp\4160212ccad25b0ddd5fe75ab813a118abb84ffd55c7a54b2e625d3516812d63.exe
        /scomma "C:\Users\Admin\AppData\Local\Temp\UwDUavf9iQ.ini"
        2⤵
        • Accesses Microsoft Outlook accounts
        PID:776

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/776-63-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/776-66-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/776-67-0x0000000000400000-0x000000000041F000-memory.dmp

      Filesize

      124KB

    • memory/960-56-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/960-58-0x0000000075801000-0x0000000075803000-memory.dmp

      Filesize

      8KB

    • memory/960-59-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB

    • memory/960-60-0x0000000000400000-0x0000000000453000-memory.dmp

      Filesize

      332KB