Analysis

  • max time kernel
    151s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    17/01/2022, 10:28

General

  • Target

    Request For Quotation.js

  • Size

    446KB

  • MD5

    0afce07b69b1f5e065f36c00b44802b0

  • SHA1

    412b7f715e1c325330d51d5eeae0f166e8a0497d

  • SHA256

    9608362f4713abe6fe636520a1f55218350d6ff78794aa432d45eef1c95e04e7

  • SHA512

    3d1d6099cfc633415f27a08a378e3b96c20e6a193034724f943c5f19807a3a99ff7fcf22190b76ed8b2a6713204c28cb2442c22dfdb13ba9499c2e75da634040

Malware Config

Signatures

  • STRRAT

    STRRAT is a remote access tool than can steal credentials and log keystrokes.

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 5 IoCs
  • Drops startup file 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\Request For Quotation.js"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:308
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\JRzXjjDHaa.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Adds Run key to start application
      PID:580
    • C:\Program Files\Java\jre7\bin\javaw.exe
      "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\yrpncbicwi.txt"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:704
      • C:\Program Files\Java\jre7\bin\java.exe
        "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\yrpncbicwi.txt"
        3⤵
        • Drops startup file
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:1996
        • C:\Program Files\Java\jre7\bin\java.exe
          "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\yrpncbicwi.txt"
          4⤵
            PID:832
          • C:\Windows\system32\cmd.exe
            cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\yrpncbicwi.txt"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1700
            • C:\Windows\system32\schtasks.exe
              schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\yrpncbicwi.txt"
              5⤵
              • Creates scheduled task(s)
              PID:308

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/308-54-0x000007FEFC451000-0x000007FEFC453000-memory.dmp

            Filesize

            8KB

          • memory/704-63-0x0000000000110000-0x0000000000111000-memory.dmp

            Filesize

            4KB

          • memory/704-78-0x0000000000110000-0x0000000000111000-memory.dmp

            Filesize

            4KB

          • memory/704-120-0x0000000000110000-0x0000000000111000-memory.dmp

            Filesize

            4KB

          • memory/704-121-0x0000000000110000-0x0000000000111000-memory.dmp

            Filesize

            4KB

          • memory/704-122-0x0000000000110000-0x0000000000111000-memory.dmp

            Filesize

            4KB

          • memory/704-110-0x0000000000110000-0x0000000000111000-memory.dmp

            Filesize

            4KB

          • memory/704-60-0x00000000022C0000-0x0000000002530000-memory.dmp

            Filesize

            2.4MB

          • memory/704-77-0x0000000000110000-0x0000000000111000-memory.dmp

            Filesize

            4KB

          • memory/704-119-0x0000000000110000-0x0000000000111000-memory.dmp

            Filesize

            4KB

          • memory/704-76-0x0000000000110000-0x0000000000111000-memory.dmp

            Filesize

            4KB

          • memory/704-71-0x0000000000110000-0x0000000000111000-memory.dmp

            Filesize

            4KB

          • memory/704-62-0x0000000000110000-0x0000000000111000-memory.dmp

            Filesize

            4KB

          • memory/704-61-0x00000000022C0000-0x0000000002530000-memory.dmp

            Filesize

            2.4MB

          • memory/832-147-0x0000000001FA0000-0x0000000002210000-memory.dmp

            Filesize

            2.4MB

          • memory/1996-133-0x0000000002250000-0x00000000024C0000-memory.dmp

            Filesize

            2.4MB