Analysis

  • max time kernel
    69s
  • max time network
    133s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    30/08/2021, 06:16

General

  • Target
    MACHINE SPECIFICATION.exe
  • Size 552KB
  • Sample210830-5fga3ataz6
  • SHA256 9218a2c4cfd9538b65b06202b850c2900e625477b176708d44e09a6bafbb5d43
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • azorult

C2
  • https://nagles.com.au/wp/xl/index.php

Signatures

  • Azorult

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

  • suricata: ET MALWARE AZORult v3.3 Server Response M3

    suricata: ET MALWARE AZORult v3.3 Server Response M3

  • suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M18

    suricata: ET MALWARE Win32/AZORult V3.3 Client Checkin M18

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

    Tries to access configuration files associated with programs like FileZilla.

  • Reads local data of messenger clients 2 TTPs

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

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

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

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MACHINE SPECIFICATION.exe
    "C:\Users\Admin\AppData\Local\Temp\MACHINE SPECIFICATION.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:856
    • C:\Users\Admin\AppData\Local\Temp\MACHINE SPECIFICATION.exe
      "C:\Users\Admin\AppData\Local\Temp\MACHINE SPECIFICATION.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3116
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "MACHINE SPECIFICATION.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2112
        • C:\Windows\SysWOW64\timeout.exe
          C:\Windows\system32\timeout.exe 3
          4⤵
          • Delays execution with timeout.exe
          PID:1032

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/856-114-0x0000000003320000-0x0000000003321000-memory.dmp

        memory/856-116-0x0000000005590000-0x0000000005592000-memory.dmp

        memory/3116-117-0x0000000000400000-0x0000000000420000-memory.dmp