Analysis

  • max time kernel
    121s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231025-en
  • resource tags

    arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-x64system
  • submitted
    05/11/2023, 16:10

General

  • Target
    9d399e8333943a129b66f9572a3d2ebd0e46725d22171e347c05677ce388cc92_payload.bin.exe
  • Size 101KB
  • Sample231105-tmcqqaae49
  • SHA256 bb9f86e51b9f942e3e196517f059b6ed77f27007228acb0a8aa640eab1f2c69f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

C2
  • http://robertjohnson.top

Attributes
  • url_path

    /e9c345fc99a4e67e.php

rc4.plain

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9d399e8333943a129b66f9572a3d2ebd0e46725d22171e347c05677ce388cc92_payload.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\9d399e8333943a129b66f9572a3d2ebd0e46725d22171e347c05677ce388cc92_payload.bin.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2944
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2944 -s 788
      2⤵
      • Program crash
      PID:2152

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2944-0-0x00000000013C0000-0x00000000015ED000-memory.dmp

        memory/2944-2-0x00000000013C0000-0x00000000015ED000-memory.dmp