Analysis

  • max time kernel
    92s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    19/07/2021, 09:26

General

  • Target
    bank swift... Scan pdf.exe
  • Size 920KB
  • Sample210719-eceprnncnx
  • SHA256 2a91e3c56d2e6e834bdfdab27b2092386d549d5ef85536aaa76ce5829d1090e4
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • snakekeylogger

Credentials
  • Protocol

    smtp

  • Host

    mail.greentrading.com.pk

  • Port

    26

  • Password

    lovetoall

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bank swift... Scan pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\bank swift... Scan pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1656
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eXrhGWFx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB5F7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:652
    • C:\Users\Admin\AppData\Local\Temp\bank swift... Scan pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\bank swift... Scan pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1312

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1312-68-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1312-70-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1312-72-0x0000000004C80000-0x0000000004C81000-memory.dmp

        memory/1312-73-0x0000000004C85000-0x0000000004C96000-memory.dmp

        memory/1656-60-0x0000000000A10000-0x0000000000A11000-memory.dmp

        memory/1656-62-0x0000000004F40000-0x0000000004F41000-memory.dmp

        memory/1656-63-0x0000000000990000-0x00000000009AB000-memory.dmp

        memory/1656-64-0x0000000005C00000-0x0000000005C64000-memory.dmp

        memory/1656-65-0x0000000002050000-0x000000000206F000-memory.dmp