General

  • Target

    49c435b1d5b2ba9c879fd4e90f8f4e2619c2b7d4d616480d48f75fe6dd91f867

  • Size

    1.8MB

  • Sample

    240531-qfbcjahg9z

  • MD5

    aad80fb7f941706d746a888b39d3cbf0

  • SHA1

    779e6f1ce7d5039134a50962ff3b95e0f964b9ed

  • SHA256

    49c435b1d5b2ba9c879fd4e90f8f4e2619c2b7d4d616480d48f75fe6dd91f867

  • SHA512

    cf07b0962bd1c8bce6145a9584267bd7e78e42c80bb7c9047ca015c7d58ffcbb9e1787d5577e10abb4416f22559ff3edbd008fca39ac69f3bc45cfe1dac43b02

  • SSDEEP

    49152:USmg/0n9j2TKC1ot+a6To15LEuQBZaql/yGt:USmgs2q/6TE9AaKyI

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://94.103.188.126/jerry/putty.zip

Extracted

Family

amadey

Version

4.21

Botnet

49e482

C2

http://147.45.47.70

Attributes
  • install_dir

    1b29d73536

  • install_file

    axplont.exe

  • strings_key

    4d31dd1a190d9879c21fac6d87dc0043

  • url_paths

    /tr8nomy/index.php

rc4.plain

Extracted

Family

redline

Botnet

1

C2

185.215.113.67:40960

Extracted

Family

asyncrat

Version

AsyncRAT

Botnet

Fresh

C2

pepecasas123.net:4608

Mutex

AsyncMutex_5952

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      49c435b1d5b2ba9c879fd4e90f8f4e2619c2b7d4d616480d48f75fe6dd91f867

    • Size

      1.8MB

    • MD5

      aad80fb7f941706d746a888b39d3cbf0

    • SHA1

      779e6f1ce7d5039134a50962ff3b95e0f964b9ed

    • SHA256

      49c435b1d5b2ba9c879fd4e90f8f4e2619c2b7d4d616480d48f75fe6dd91f867

    • SHA512

      cf07b0962bd1c8bce6145a9584267bd7e78e42c80bb7c9047ca015c7d58ffcbb9e1787d5577e10abb4416f22559ff3edbd008fca39ac69f3bc45cfe1dac43b02

    • SSDEEP

      49152:USmg/0n9j2TKC1ot+a6To15LEuQBZaql/yGt:USmgs2q/6TE9AaKyI

    • 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#.

    • Exela Stealer

      Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.

    • Modifies firewall policy service

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • RedLine

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

    • RedLine payload

    • Windows security bypass

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • 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 user/profile data of web browsers

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

    • 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.

    • Drops Chrome extension

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks