Analysis

  • max time kernel
    138s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230831-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/09/2023, 17:16

General

  • Target
    247bfb4193eb3c0835420d0636a5611f.bin.exe
  • Size 201KB
  • Sample230913-vs48lagd65
  • SHA256 700394f4e1a3d0dbcaf05eec1c9e9c95efc453eea4105ec0d68554021870dd3e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

Botnet
  • 5670364920616844804777279785

C2
  • http://185.244.48.221

Attributes
  • url_path

    /753e391766d6b25f.php

rc4.plain

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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\247bfb4193eb3c0835420d0636a5611f.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\247bfb4193eb3c0835420d0636a5611f.bin.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4672

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        mozglue.dll

        • Path C:\ProgramData\mozglue.dll
        • Size 593KB
        • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
        • MD5 SHA1 SHA512 SSDEEP

        mozglue.dll

        • Path C:\ProgramData\mozglue.dll
        • Size 593KB
        • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
        • MD5 SHA1 SHA512 SSDEEP

        nss3.dll

        • Path C:\ProgramData\nss3.dll
        • Size 2.0MB
        • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
        • MD5 SHA1 SHA512 SSDEEP

        memory/4672-0-0x0000000002340000-0x000000000256D000-memory.dmp

        memory/4672-1-0x0000000000400000-0x0000000000433000-memory.dmp

        memory/4672-6-0x0000000002340000-0x000000000256D000-memory.dmp

        memory/4672-7-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        memory/4672-74-0x0000000002340000-0x000000000256D000-memory.dmp