Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    01/04/2021, 03:48

General

  • Target
    92C946D517F15D046A3925EA0444EDD1.exe
  • Size 37KB
  • Sample210401-tdr726bgbe
  • SHA256 c7b54cc4aa3d4b08652359ddb2e8b0d91ccd6d0a01c7a34eb527fde4f0f44957
  • MD5 SHA1 SHA512
Score
8/10

Malware Config

Signatures

  • Modifies Windows Firewall 1 TTPs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops autorun.inf file 1 TTPs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\92C946D517F15D046A3925EA0444EDD1.exe
    "C:\Users\Admin\AppData\Local\Temp\92C946D517F15D046A3925EA0444EDD1.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3564
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\92C946D517F15D046A3925EA0444EDD1.exe" "92C946D517F15D046A3925EA0444EDD1.exe" ENABLE
      2⤵
        PID:3260
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /F /IM Exsample.exe
        2⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1136

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/3564-2-0x00000000024F0000-0x00000000024F1000-memory.dmp