General

  • Target
    f71eb13cee017420a630eeaef421c2df8b6b3ab7e164e5bfd57907f182c7c1bd.exe
  • Size 1.8MB
  • Sample240520-kvjdsscd52
  • SHA256 f71eb13cee017420a630eeaef421c2df8b6b3ab7e164e5bfd57907f182c7c1bd
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://d22hce23hy1ej9.cloudfront.net/load/th.php?a=2841&c=2841

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://d22hce23hy1ej9.cloudfront.net/load/dl.php?id=458&c=2841

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://d22hce23hy1ej9.cloudfront.net/load/dl.php?id=444&c=2841

Extracted

Family
  • amadey

Version
  • 4.20

Botnet
  • c767c0

C2
  • http://5.42.96.7

Attributes
  • install_dir

    7af68cdb52

  • install_file

    axplons.exe

  • strings_key

    e2ce58e78f631ed97d01fe7b70e85d5e

  • url_paths

    /zamo7h/index.php

rc4.plain

Extracted

Family
  • redline

Botnet
  • 1

C2
  • 185.215.113.67:26260

Targets

    • Target
      f71eb13cee017420a630eeaef421c2df8b6b3ab7e164e5bfd57907f182c7c1bd.exe
    • Size 1.8MB
    • SHA256 f71eb13cee017420a630eeaef421c2df8b6b3ab7e164e5bfd57907f182c7c1bd
    • MD5 SHA1 SHA512 SSDEEP
    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Modifies firewall policy service

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • UAC bypass

    • XMRig Miner payload

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Stops running service(s)

    • Checks BIOS information in registry

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks