Analysis

  • max time kernel
    91s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2022, 06:51

General

  • Target
    YjukYSejyzZXpHH.exe
  • Size 881KB
  • Sample221010-hmgtwsbbbm
  • SHA256 2ce097bd6170efdac97fff7c165c836764ff12007b3407c6d28d2f49e68f1aa7
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\YjukYSejyzZXpHH.exe
    "C:\Users\Admin\AppData\Local\Temp\YjukYSejyzZXpHH.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4820
    • C:\Users\Admin\AppData\Local\Temp\YjukYSejyzZXpHH.exe
      "C:\Users\Admin\AppData\Local\Temp\YjukYSejyzZXpHH.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2408

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        YjukYSejyzZXpHH.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\YjukYSejyzZXpHH.exe.log
        • Size 1KB
        • SHA256 bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
        • MD5 SHA1 SHA512

        memory/2408-139-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/2408-141-0x0000000006A20000-0x0000000006BE2000-memory.dmp

        memory/4820-132-0x0000000000F30000-0x0000000001012000-memory.dmp

        memory/4820-133-0x00000000060B0000-0x0000000006654000-memory.dmp

        memory/4820-134-0x00000000059E0000-0x0000000005A72000-memory.dmp

        memory/4820-135-0x00000000059B0000-0x00000000059BA000-memory.dmp

        memory/4820-136-0x000000000A640000-0x000000000A6DC000-memory.dmp

        memory/4820-137-0x000000000A750000-0x000000000A7B6000-memory.dmp