TINY SPIDER

Known Names 1 entries

Observed Target Countries 1

Based on ETDA data — countries highlighted in red

Description

(ForcePoint) It all starts with the delivery of a small loader called TinyLoader, an obfuscated executable withsimple–yet powerful –downloader functionality. Upon execution, it will first brute force its own decryption key (a 32-bit value, meaning this takes a fraction of second on modern PCs) before using this to decrypt the main program code. The core functionality of the decrypted code is communication with a set of hardcoded C2 servers by IP and port. If the C2 is active, it will provide what is effectively a piece of shellcode, encrypted by another 32-bit constant. This shellcode is not ‘fire and forget’: it instead sees the loader establish a semi-interactive two-way communication with the C2. Note that the earliest traits and mentions of TinyLoader go back to as far as 2015.

Tools Used 4

Operations 1

Reports & References 1