Analysis

  • max time kernel
    88s
  • max time network
    89s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    10/11/2020, 11:28

General

  • Target
    4be59d149de027d7b23aca9a72fecd27c81435f3daec5f00b1d2d5627d29889b.exe
  • Size 393KB
  • Sample201110-refd3w7m66
  • SHA256 4be59d149de027d7b23aca9a72fecd27c81435f3daec5f00b1d2d5627d29889b
  • MD5 SHA1 SHA512
Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Loads dropped DLL 8 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.

  • JavaScript code in executable 1 IoCs
  • 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\4be59d149de027d7b23aca9a72fecd27c81435f3daec5f00b1d2d5627d29889b.exe
    "C:\Users\Admin\AppData\Local\Temp\4be59d149de027d7b23aca9a72fecd27c81435f3daec5f00b1d2d5627d29889b.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:484
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\4be59d149de027d7b23aca9a72fecd27c81435f3daec5f00b1d2d5627d29889b.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:112
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1356

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/484-0-0x00000000031BB000-0x00000000031BC000-memory.dmp

        memory/484-1-0x0000000004990000-0x00000000049A1000-memory.dmp

        memory/900-3-0x000007FEF63D0000-0x000007FEF664A000-memory.dmp