General

  • Target

    501e027b693eace039fb72ed320d56369fa307b9b4483fac0faaf01df199139e.exe

  • Size

    1.9MB

  • Sample

    240324-cq2etage38

  • MD5

    dec48e6cece0b99aaf0a4d913f468818

  • SHA1

    83d631ab4ae2839760119fe0d627627e002f8bb4

  • SHA256

    501e027b693eace039fb72ed320d56369fa307b9b4483fac0faaf01df199139e

  • SHA512

    9cc5e66eb5f0b18cd25070a64ed04dcab49550b529a23bac3734543204a9cd7d1c70a3a51161fc21fe658953ebbde808660e09db4b81e2abe52aa6a3dd741bfb

  • SSDEEP

    49152:9lfUI1Tv0C0baWwd753ct9U8AxIfE2Vk7PSV:9JHTvKbsNWXJVk7SV

Malware Config

Extracted

Family

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/index.php

rc4.plain

Extracted

Family

redline

C2

185.215.113.67:26260

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Extracted

Family

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/index.php

rc4.plain

Targets

    • Target

      501e027b693eace039fb72ed320d56369fa307b9b4483fac0faaf01df199139e.exe

    • Size

      1.9MB

    • MD5

      dec48e6cece0b99aaf0a4d913f468818

    • SHA1

      83d631ab4ae2839760119fe0d627627e002f8bb4

    • SHA256

      501e027b693eace039fb72ed320d56369fa307b9b4483fac0faaf01df199139e

    • SHA512

      9cc5e66eb5f0b18cd25070a64ed04dcab49550b529a23bac3734543204a9cd7d1c70a3a51161fc21fe658953ebbde808660e09db4b81e2abe52aa6a3dd741bfb

    • SSDEEP

      49152:9lfUI1Tv0C0baWwd753ct9U8AxIfE2Vk7PSV:9JHTvKbsNWXJVk7SV

    • Amadey

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

    • RedLine

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

    • RedLine payload

    • Stealc

      Stealc is an infostealer written in C++.

    • Detect binaries embedding considerable number of MFA browser extension IDs.

    • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

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

    • UPX dump on OEP (original entry point)

    • Blocklisted process makes network request

    • 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

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

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

    • Reads user/profile data of web browsers

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

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks