General

  • Target

    c1a3b050233175fb7f071326dd5e21f1652ef0ca64811143a79f71c12b88d1dd

  • Size

    1.8MB

  • Sample

    240426-hxcb6abd59

  • MD5

    df5a3f5421595efbde1cc2376dc9c6ff

  • SHA1

    bc669fce4bece6c7e6381d1458790c1dd684f6ad

  • SHA256

    c1a3b050233175fb7f071326dd5e21f1652ef0ca64811143a79f71c12b88d1dd

  • SHA512

    62535268f26a691f258f4eede5c64d031bf28482755ed9a5f89345f10e323946d2b1942ab4bf16bb0d0a82daeab6074341798759e5eb18314b3d56f16f9781e4

  • SSDEEP

    49152:jZq4v2nU82uBaVB8rf95FAI5l2CI6FZl0mYNl3s:jZqa2nJrs8r1YIz2CdvlVYz

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

Extracted

Family

asyncrat

Version

| Controller

Botnet

Default

C2

45.138.16.138:4449

Mutex

aanqnmyihhbbckuo

Attributes
  • delay

    1

  • install

    true

  • install_file

    winrar.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      c1a3b050233175fb7f071326dd5e21f1652ef0ca64811143a79f71c12b88d1dd

    • Size

      1.8MB

    • MD5

      df5a3f5421595efbde1cc2376dc9c6ff

    • SHA1

      bc669fce4bece6c7e6381d1458790c1dd684f6ad

    • SHA256

      c1a3b050233175fb7f071326dd5e21f1652ef0ca64811143a79f71c12b88d1dd

    • SHA512

      62535268f26a691f258f4eede5c64d031bf28482755ed9a5f89345f10e323946d2b1942ab4bf16bb0d0a82daeab6074341798759e5eb18314b3d56f16f9781e4

    • SSDEEP

      49152:jZq4v2nU82uBaVB8rf95FAI5l2CI6FZl0mYNl3s:jZqa2nJrs8r1YIz2CdvlVYz

    • Amadey

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

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Async RAT payload

    • 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