General

  • Target

    c1b8ba6ec9b4ecf61a409159e5f72ab60b14a2f1f47433122986ab5fb7ce417d

  • Size

    1.8MB

  • Sample

    240602-lt5fbahf4s

  • MD5

    cd53722594cf57b910d7311c69034e6b

  • SHA1

    ad4a79f29b5397d533c483998122cf47e791def7

  • SHA256

    c1b8ba6ec9b4ecf61a409159e5f72ab60b14a2f1f47433122986ab5fb7ce417d

  • SHA512

    b0c2ff4bda78bfb6e10b53287ea8bfc085f9bc07273deb4843fbcf62aef46ac2b226fef14520ed063f2a98ba836704928244f6810f90d3eb02ceb7e593f067ec

  • SSDEEP

    49152:ol/8FzpLcb8dYe+hEEr113zb/Sy8YMJcsvPPh:olkNlcbe+br1Jzb/9sX

Malware Config

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

newbild

C2

185.215.113.67:40960

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://94.103.188.126/jerry/putty.zip

Extracted

Family

redline

Botnet

@LOGSCLOUDYT_BOT

C2

185.172.128.33:8970

Extracted

Family

stealc

Botnet

cuapfss

C2

http://23.88.106.134

Attributes
  • url_path

    /6a9f8e2503d99c04.php

Extracted

Family

asyncrat

Version

AsyncRAT

Botnet

Fresh

C2

pepecasas123.net:4608

Mutex

AsyncMutex_5952

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

smokeloader

Botnet

pub2

Targets

    • Target

      c1b8ba6ec9b4ecf61a409159e5f72ab60b14a2f1f47433122986ab5fb7ce417d

    • Size

      1.8MB

    • MD5

      cd53722594cf57b910d7311c69034e6b

    • SHA1

      ad4a79f29b5397d533c483998122cf47e791def7

    • SHA256

      c1b8ba6ec9b4ecf61a409159e5f72ab60b14a2f1f47433122986ab5fb7ce417d

    • SHA512

      b0c2ff4bda78bfb6e10b53287ea8bfc085f9bc07273deb4843fbcf62aef46ac2b226fef14520ed063f2a98ba836704928244f6810f90d3eb02ceb7e593f067ec

    • SSDEEP

      49152:ol/8FzpLcb8dYe+hEEr113zb/Sy8YMJcsvPPh:olkNlcbe+br1Jzb/9sX

    • 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

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Stealc

      Stealc is an infostealer written in C++.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • UAC bypass

    • Windows security bypass

    • Grants admin privileges

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

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

    • Modifies boot configuration data using bcdedit

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Installed Components in the registry

    • Modifies Windows Firewall

    • Sets service image path in registry

    • 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.

    • Drops startup file

    • 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

    • Modifies system executable filetype association

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Registers COM server for autorun

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Windows security modification

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Drops Chrome extension

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • 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