Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    16/02/2021, 18:49

General

  • Target
    Property...exe
  • Size 881KB
  • Sample210216-3py75c8jne
  • SHA256 76077fb5cc22e7b6f56d291a9ba616655185ebf747718b198fa3f2f3e27e89bd
  • MD5 SHA1 SHA512

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.privateemail.com

  • Port

    587

  • Password

    v%KsQvsE%nG%t

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger Payload 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Property...exe
    "C:\Users\Admin\AppData\Local\Temp\Property...exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:528
    • C:\Users\Admin\AppData\Local\Temp\Property...exe
      "C:\Users\Admin\AppData\Local\Temp\Property...exe"
      2⤵
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1396

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/528-2-0x0000000075D01000-0x0000000075D03000-memory.dmp

        memory/1396-7-0x0000000074DC0000-0x00000000754AE000-memory.dmp

        memory/1396-8-0x0000000001DC0000-0x0000000001E24000-memory.dmp

        memory/1396-10-0x0000000000400000-0x000000000047A000-memory.dmp

        memory/1396-13-0x0000000004723000-0x0000000004724000-memory.dmp

        memory/1396-12-0x0000000004722000-0x0000000004723000-memory.dmp

        memory/1396-14-0x0000000004724000-0x0000000004725000-memory.dmp

        memory/1396-11-0x0000000004721000-0x0000000004722000-memory.dmp

        memory/1396-15-0x0000000004729000-0x000000000473A000-memory.dmp