General

  • Target

    72a9a731d6a1237c6cc4cc3dd1b4cf2e1ddfdbed917c6f822b4c33d342366fc5

  • Size

    1.8MB

  • Sample

    240425-dbeg6sec5v

  • MD5

    733fce8af4aa232cb80b7d61fa272764

  • SHA1

    1bcc5b6309f5ff21b3e7d69a26d65ab318d2e760

  • SHA256

    72a9a731d6a1237c6cc4cc3dd1b4cf2e1ddfdbed917c6f822b4c33d342366fc5

  • SHA512

    8d4384aa54bce3ab173fc9b2f8146e08499c2be3520b41a5a24cdc4fbc15f37ffae6287bc4e32337a5a617942c3d70f46e70d4400718c2097e3ec8ff0db728be

  • SSDEEP

    49152:4MtlcinxPGTqYeF1mj5OkN8Si74S82w0WR34Hm6VeWN:4MM38NUYw0aVA

Malware Config

Extracted

Family

amadey

Version

4.17

C2

http://193.233.132.167

Attributes
  • install_dir

    4d0ab15804

  • install_file

    chrosha.exe

  • strings_key

    1a9519d7b465e1f4880fa09a6162d768

  • url_paths

    /enigma/index.php

rc4.plain

Targets

    • Target

      72a9a731d6a1237c6cc4cc3dd1b4cf2e1ddfdbed917c6f822b4c33d342366fc5

    • Size

      1.8MB

    • MD5

      733fce8af4aa232cb80b7d61fa272764

    • SHA1

      1bcc5b6309f5ff21b3e7d69a26d65ab318d2e760

    • SHA256

      72a9a731d6a1237c6cc4cc3dd1b4cf2e1ddfdbed917c6f822b4c33d342366fc5

    • SHA512

      8d4384aa54bce3ab173fc9b2f8146e08499c2be3520b41a5a24cdc4fbc15f37ffae6287bc4e32337a5a617942c3d70f46e70d4400718c2097e3ec8ff0db728be

    • SSDEEP

      49152:4MtlcinxPGTqYeF1mj5OkN8Si74S82w0WR34Hm6VeWN:4MM38NUYw0aVA

    • 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.

    • 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

3
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks