General

  • Target

    c4d38f1278df7e1d961d51cd3924be1766d9131e9fa401bd96b364b31b1ec8ef

  • Size

    1.8MB

  • Sample

    240426-gnxfasae5t

  • MD5

    0dd192b495ad44c8bc94200577927d74

  • SHA1

    3529ddda49e78af24f604ab50117991718ab27a4

  • SHA256

    c4d38f1278df7e1d961d51cd3924be1766d9131e9fa401bd96b364b31b1ec8ef

  • SHA512

    4b4df4b4d6fc9f6cd720cb025a5e6317d5d09444f073f6dc8d8ce00a4d53aedc9d62aa0be28ca8ead86ada01a3931cbe5f54e11a6feb2a11ae0167d0a1b98f6a

  • SSDEEP

    49152:cSR7NZc/HsMtEK8i9pdgBvDelEg7HoypFwx+zG3Yhmix:ccRm/MM+K8IdgB1grjwxAGG

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

      c4d38f1278df7e1d961d51cd3924be1766d9131e9fa401bd96b364b31b1ec8ef

    • Size

      1.8MB

    • MD5

      0dd192b495ad44c8bc94200577927d74

    • SHA1

      3529ddda49e78af24f604ab50117991718ab27a4

    • SHA256

      c4d38f1278df7e1d961d51cd3924be1766d9131e9fa401bd96b364b31b1ec8ef

    • SHA512

      4b4df4b4d6fc9f6cd720cb025a5e6317d5d09444f073f6dc8d8ce00a4d53aedc9d62aa0be28ca8ead86ada01a3931cbe5f54e11a6feb2a11ae0167d0a1b98f6a

    • SSDEEP

      49152:cSR7NZc/HsMtEK8i9pdgBvDelEg7HoypFwx+zG3Yhmix:ccRm/MM+K8IdgB1grjwxAGG

    • 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