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General

  • Target

    rama.exe

  • Size

    1.8MB

  • Sample

    240818-ymwaaavark

  • MD5

    6e5042ff1ec6df9aee18f4eea7864524

  • SHA1

    19e4eaaec31c8512b191138a439b6c4c7ba73d18

  • SHA256

    420a1ba2737e39704e52e1ea0c2494d8c232f10e2b40971923959da4708b3b0c

  • SHA512

    ac5c8537bfd0a509ab49911cdf180778e9e47f9f9fb600933b2ba03f939f9bc9834db5a106840382ee648b289cddaf69b55cf969f51b9f89c49c678f1edc202c

  • SSDEEP

    49152:2M3rvEOaXgE3YC8ZtDYYuyVcBUpxOePEEmeweNX9:24E9QiYC2DYscuEEmdu

Malware Config

Extracted

Family

amadey

Version

4.41

Botnet

c7817d

C2

http://31.41.244.10

Attributes
  • install_dir

    0e8d0864aa

  • install_file

    svoutse.exe

  • strings_key

    5481b88a6ef75bcf21333988a4e47048

  • url_paths

    /Dem7kTu/index.php

rc4.plain

Targets

    • Target

      rama.exe

    • Size

      1.8MB

    • MD5

      6e5042ff1ec6df9aee18f4eea7864524

    • SHA1

      19e4eaaec31c8512b191138a439b6c4c7ba73d18

    • SHA256

      420a1ba2737e39704e52e1ea0c2494d8c232f10e2b40971923959da4708b3b0c

    • SHA512

      ac5c8537bfd0a509ab49911cdf180778e9e47f9f9fb600933b2ba03f939f9bc9834db5a106840382ee648b289cddaf69b55cf969f51b9f89c49c678f1edc202c

    • SSDEEP

      49152:2M3rvEOaXgE3YC8ZtDYYuyVcBUpxOePEEmeweNX9:24E9QiYC2DYscuEEmdu

    • Amadey

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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

    • 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

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks