General

  • Target

    IMG_53091.pdf.exe

  • Size

    1.5MB

  • Sample

    210118-dax6jyqtes

  • MD5

    21781179e4ac1c7fcf92ff2ca32d22d4

  • SHA1

    4aea4efe9b1fd66c4e107bbc691626ef662b2b42

  • SHA256

    f4524797f4b1871ce21a139c2eabcd661e3a1c8728a7b40d54d3a8c0ee6ca30a

  • SHA512

    fa7ce44f9b16e4b425a5e7d93705be553dbe0c71e6e429273966059322b7f57a91d47305bd7ad92c08917226f8f71c707fb6a5fdff79b29422f2f24c4e8a3a73

Malware Config

Targets

    • Target

      IMG_53091.pdf.exe

    • Size

      1.5MB

    • MD5

      21781179e4ac1c7fcf92ff2ca32d22d4

    • SHA1

      4aea4efe9b1fd66c4e107bbc691626ef662b2b42

    • SHA256

      f4524797f4b1871ce21a139c2eabcd661e3a1c8728a7b40d54d3a8c0ee6ca30a

    • SHA512

      fa7ce44f9b16e4b425a5e7d93705be553dbe0c71e6e429273966059322b7f57a91d47305bd7ad92c08917226f8f71c707fb6a5fdff79b29422f2f24c4e8a3a73

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger Payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Tasks