Overview

overview

10

Static

static

gunzipped.exe

windows7_x64

10

gunzipped.exe

windows10_x64

10

Analysis

  • max time kernel
    37s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    12/04/2021, 10:01

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General

  • Target
    gunzipped.exe
  • Size 611KB
  • Sample210412-63abj35ca6
  • SHA256 17acf24c05c7bca527ec089ff2581de0a54e8793a89027cb3beea7bdedbf6296
  • MD5 SHA1 SHA512
Score
10/10
azorultdiscoveryinfostealerspywarestealertrojan

Malware Config

Extracted

Family

  • azorult

C2

  • http://45.76.21.114/index.php

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    trojaninfostealerazorult
  • Loads dropped DLL 4 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    spywarestealer
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Checks installed software on the system 1 TTPs

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

    discovery
  • Suspicious use of SetThreadContext 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 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
    "C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
      "{path}"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:744

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/744-115-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/744-117-0x0000000000400000-0x0000000000420000-memory.dmp
        Download

        memory/2016-114-0x0000000002490000-0x0000000002491000-memory.dmp
        Download