Analysis

  • max time kernel
    101s
  • max time network
    103s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    04/04/2021, 11:53

General

  • Target
    AFE.tmp.exe
  • Size 378KB
  • Sample210404-6mqf2f2men
  • SHA256 553e5fd6df66c3d38733e1942ffbf2557843fc19c48fa1a2379eee9eb528c144
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • 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
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AFE.tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\AFE.tmp.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1456
    • C:\Windows\SysWOW64\cmd.exe
      /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\AFE.tmp.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1052
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 3
        3⤵
        • Delays execution with timeout.exe
        PID:632

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1456-2-0x00000000076A0000-0x000000000CB1C000-memory.dmp

        memory/1456-3-0x0000000000400000-0x000000000587C000-memory.dmp