General

  • Target
    cb8d68041200958ef7c8b1c5d5cb82c2545f2d89b67dd49c564242f2f009362c.exe
  • Size 957KB
  • Sample260729-mgnsgaff92
  • SHA256 cb8d68041200958ef7c8b1c5d5cb82c2545f2d89b67dd49c564242f2f009362c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • gcleaner

C2
  • 185.156.73.98

  • 45.91.200.135

Extracted

Family
  • amadey

Version
  • 5.78

C2
  • http://91.92.242.236

Attributes
  • install_dir

    adb7f46c0c

  • install_file

    Bwale.exe

  • strings_key

    a42cf94a609810d038dd0ca0d030ffef

  • url_paths

    /oPvjr94jfe/index.php

rc4.plain

Extracted

Family
  • remus_stealer

C2
  • http://zelpx.garden:9895

  • http://fimmora.surf:6504

  • http://tzpx.courses:4437

Targets

    • Target
      cb8d68041200958ef7c8b1c5d5cb82c2545f2d89b67dd49c564242f2f009362c.exe
    • Size 957KB
    • SHA256 cb8d68041200958ef7c8b1c5d5cb82c2545f2d89b67dd49c564242f2f009362c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects Amadey x86-bit Payload

    • Detects DonutLoader

    • Family: Amadey

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

    • Family: DonutLoader

      DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

    • Family: GCleaner

      GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.

    • Family: Remus

      Remus is a stealer written in C++.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

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

    • Downloads MZ/PE file

    • 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

    • Loads dropped DLL

    • Reads user/profile data of local email clients

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

    • 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.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • 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

    • Maps connected drives based on registry

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

    • SmartAssembly .NET packer

      Detects SmartAssembly .NET packer.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks