Analysis

  • max time kernel
    227s
  • max time network
    244s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/01/2024, 18:45

General

  • Target
    syncUpd.exe
  • Size 202KB
  • Sample240106-xd2v2adfdr
  • SHA256 4e90cbff460414a9bd5b8ba2c9680bca2f85d3a38b4d2b2242f8c176d102f72f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

C2
  • http://185.172.128.79

Attributes
  • url_path

    /3886d2276f6914c4.php

rc4.plain

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\syncUpd.exe
    "C:\Users\Admin\AppData\Local\Temp\syncUpd.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1132

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1132-1-0x0000000000C20000-0x0000000000D20000-memory.dmp

        memory/1132-2-0x0000000000BC0000-0x0000000000BDC000-memory.dmp

        memory/1132-3-0x0000000000400000-0x0000000000854000-memory.dmp

        memory/1132-4-0x0000000000400000-0x0000000000854000-memory.dmp

        memory/1132-5-0x0000000000400000-0x0000000000854000-memory.dmp

        memory/1132-6-0x0000000000C20000-0x0000000000D20000-memory.dmp

        memory/1132-7-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        memory/1132-25-0x0000000000BC0000-0x0000000000BDC000-memory.dmp

        memory/1132-26-0x0000000000400000-0x0000000000854000-memory.dmp

        memory/1132-27-0x0000000000400000-0x0000000000854000-memory.dmp

        memory/1132-31-0x0000000000400000-0x0000000000854000-memory.dmp

        memory/1132-50-0x0000000000400000-0x0000000000854000-memory.dmp

        memory/1132-55-0x0000000000400000-0x0000000000854000-memory.dmp

        memory/1132-59-0x0000000000400000-0x0000000000854000-memory.dmp

        memory/1132-63-0x0000000000400000-0x0000000000854000-memory.dmp