General

  • Target

    4fd89a2ee1199947ab7a204312dd8f8184430d51ec56684b64bc338101049d3b

  • Size

    1.9MB

  • Sample

    240601-r5legaff55

  • MD5

    1d04aca0b4543e5bbb9351f4f25a2f72

  • SHA1

    3abe2ec307c710521d7f6439eb800231b65f91e6

  • SHA256

    4fd89a2ee1199947ab7a204312dd8f8184430d51ec56684b64bc338101049d3b

  • SHA512

    46d452ea23cf8dc1496ff17766d9bb7048728ca3b1b683cad8bbd2c42f77c589e287f9e6a35b4b71923c608188bd13f1414401c3e51a9ad62aa2814bc8696872

  • SSDEEP

    49152:2MR+TBJm620UDWBb4+b7Wpvs9/S0BnaEIxN+RcLr:8BcaUDWimapvsJS0wEI3+6r

Malware Config

Extracted

Family

amadey

Version

4.21

Botnet

0e6740

C2

http://147.45.47.155

Attributes
  • install_dir

    9217037dc9

  • install_file

    explortu.exe

  • strings_key

    8e894a8a4a3d0da8924003a561cfb244

  • url_paths

    /ku4Nor9/index.php

rc4.plain

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

risepro

C2

147.45.47.126:58709

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

Extracted

Family

asyncrat

Version

AsyncRAT

Botnet

Fresh run

C2

pepecasas123.net:4609

Mutex

AsyncMutex_2952

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      4fd89a2ee1199947ab7a204312dd8f8184430d51ec56684b64bc338101049d3b

    • Size

      1.9MB

    • MD5

      1d04aca0b4543e5bbb9351f4f25a2f72

    • SHA1

      3abe2ec307c710521d7f6439eb800231b65f91e6

    • SHA256

      4fd89a2ee1199947ab7a204312dd8f8184430d51ec56684b64bc338101049d3b

    • SHA512

      46d452ea23cf8dc1496ff17766d9bb7048728ca3b1b683cad8bbd2c42f77c589e287f9e6a35b4b71923c608188bd13f1414401c3e51a9ad62aa2814bc8696872

    • SSDEEP

      49152:2MR+TBJm620UDWBb4+b7Wpvs9/S0BnaEIxN+RcLr:8BcaUDWimapvsJS0wEI3+6r

    • 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#.

    • Modifies firewall policy service

    • PrivateLoader

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

    • RisePro

      RisePro stealer is an infostealer distributed by PrivateLoader.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • UAC bypass

    • Windows security bypass

    • Async RAT payload

    • 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

    • 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 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

    • 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