Analysis

  • max time kernel
    140s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    28/08/2021, 16:21

General

  • Target
    b6bc146e7e2f88afc9b81dc6cb4e4c54.exe
  • Size 429KB
  • Sample210828-dt2cj7byte
  • SHA256 8ea7e098522cb46482fad73b8abf73f6c74f85d5e42953eb5353d5bfeb9497d0
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • raccoon

Botnet
  • be17623a7e46bbe6227e16dde04d43b81a77bd4b

Attributes
  • url4cnc

    https://telete.in/vvizAgentLost

rc4.plain
rc4.plain

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Loads dropped DLL 7 IoCs
  • 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.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b6bc146e7e2f88afc9b81dc6cb4e4c54.exe
    "C:\Users\Admin\AppData\Local\Temp\b6bc146e7e2f88afc9b81dc6cb4e4c54.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\b6bc146e7e2f88afc9b81dc6cb4e4c54.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1628

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1920-60-0x0000000076691000-0x0000000076693000-memory.dmp

        memory/1920-62-0x0000000000400000-0x0000000002CFB000-memory.dmp

        memory/1920-61-0x00000000002B0000-0x000000000033F000-memory.dmp