General

  • Target

    91928cff02a35939c073e174ad69542f10ac4465bcab0db2093214820d2828a2

  • Size

    1.8MB

  • Sample

    240328-cxtnjsdb5v

  • MD5

    fd9fbcb76e82f43fcefc978edb2d5401

  • SHA1

    98c4f77fb8dd309d1f3db8a8f7970f4844103860

  • SHA256

    91928cff02a35939c073e174ad69542f10ac4465bcab0db2093214820d2828a2

  • SHA512

    de46089afff05a726ee7b8e8bbaf2fb22e0c21eb21dfb5ea4c8b95bd813ef710cb5147dae65fb132b1c0233ea6040ef510f8187e23f8acb1d95566a0de1d0c8b

  • SSDEEP

    24576:SgfjathaJi3PqCva0PouhtwQh7IWRZ2YABxaSSrSIQD7XfCvE/llYwYNItNEv:7bhJSly0P5tdkYYfiifgENaw3t

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

Targets

    • Target

      91928cff02a35939c073e174ad69542f10ac4465bcab0db2093214820d2828a2

    • Size

      1.8MB

    • MD5

      fd9fbcb76e82f43fcefc978edb2d5401

    • SHA1

      98c4f77fb8dd309d1f3db8a8f7970f4844103860

    • SHA256

      91928cff02a35939c073e174ad69542f10ac4465bcab0db2093214820d2828a2

    • SHA512

      de46089afff05a726ee7b8e8bbaf2fb22e0c21eb21dfb5ea4c8b95bd813ef710cb5147dae65fb132b1c0233ea6040ef510f8187e23f8acb1d95566a0de1d0c8b

    • SSDEEP

      24576:SgfjathaJi3PqCva0PouhtwQh7IWRZ2YABxaSSrSIQD7XfCvE/llYwYNItNEv:7bhJSly0P5tdkYYfiifgENaw3t

    • Amadey

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

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

    • 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 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

2
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks