Analysis

  • max time kernel
    64s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20220331-en
  • submitted
    04/04/2022, 10:19

General

  • Target
    23456876545ORINVOICE.exe
  • Size 1.4MB
  • Sample220404-mchewsded2
  • SHA256 8d583ca6c10494ab0e0f8375d65e5f1f999c8ddfeab0bf4b7aa4e19bef9f0873
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • snakekeylogger

Credentials
C2
  • https://api.telegram.org/bot5191427034:AAF7Hd96Eem6iHiobxfishPjOx2vSkHqBM8/sendMessage?chat_id=1673751470

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger Payload 6 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 3 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 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\23456876545ORINVOICE.exe
    "C:\Users\Admin\AppData\Local\Temp\23456876545ORINVOICE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Users\Admin\AppData\Local\Temp\23456876545ORINVOICE.exe
      "C:\Users\Admin\AppData\Local\Temp\23456876545ORINVOICE.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2028

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1700-54-0x00000000013C0000-0x000000000152C000-memory.dmp

        memory/1700-55-0x0000000000490000-0x000000000049C000-memory.dmp

        memory/1700-56-0x0000000005D20000-0x0000000005E18000-memory.dmp

        memory/1700-57-0x0000000005560000-0x0000000005616000-memory.dmp

        memory/2028-58-0x0000000000400000-0x000000000047C000-memory.dmp

        memory/2028-59-0x0000000000400000-0x000000000047C000-memory.dmp

        memory/2028-61-0x0000000000400000-0x000000000047C000-memory.dmp

        memory/2028-62-0x0000000000400000-0x000000000047C000-memory.dmp

        memory/2028-63-0x0000000000400000-0x000000000047C000-memory.dmp

        memory/2028-66-0x0000000000400000-0x000000000047C000-memory.dmp

        memory/2028-68-0x0000000000400000-0x000000000047C000-memory.dmp

        memory/2028-69-0x00000000002B0000-0x00000000002BA000-memory.dmp

        memory/2028-70-0x0000000004BA0000-0x0000000004C06000-memory.dmp