Analysis

  • max time kernel
    152s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    21/01/2022, 14:24

General

  • Target

    Order confirmation.jar

  • Size

    187KB

  • MD5

    9b888e0d179f1079bab199bf682c69d2

  • SHA1

    55632e020598c5511d3c361fe2e3c483af39b0ba

  • SHA256

    febb815216146ce5b082e909f7ee36a07f2692201b36671fa0f3c73eb7cd407d

  • SHA512

    684ef507db352bde9942501ef9f8fdb72be541724d10bda4c7f9b6a4c28eace345cd9078e7b27bf09d06c7babd786d04a275fc96b3f54e4d98f70e8f9a1ffbd8

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 9 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Windows\system32\java.exe
    java -jar "C:\Users\Admin\AppData\Local\Temp\Order confirmation.jar"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:740
    • C:\Windows\system32\wscript.exe
      wscript C:\Users\Admin\_output.js
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1488
      • C:\Windows\System32\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\YSCicdEDwo.js"
        3⤵
        • Blocklisted process makes network request
        • Drops startup file
        • Adds Run key to start application
        PID:364
      • C:\Program Files\Java\jre7\bin\javaw.exe
        "C:\Program Files\Java\jre7\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\hrrtmf.txt"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2008
        • C:\Program Files\Java\jre7\bin\java.exe
          "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\hrrtmf.txt"
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1736
          • C:\Program Files\Java\jre7\bin\java.exe
            "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\hrrtmf.txt"
            5⤵
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:1056
            • C:\Windows\system32\cmd.exe
              cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:540
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
                7⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:964
            • C:\Windows\system32\cmd.exe
              cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:1092
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
                7⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:1820
            • C:\Windows\system32\cmd.exe
              cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:984
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
                7⤵
                  PID:1460
              • C:\Windows\system32\cmd.exe
                cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list"
                6⤵
                  PID:1160
                  • C:\Windows\System32\Wbem\WMIC.exe
                    wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
                    7⤵
                      PID:1752

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • memory/740-57-0x00000000022C0000-0x00000000052C0000-memory.dmp

                Filesize

                48.0MB

              • memory/740-56-0x0000000000330000-0x0000000000331000-memory.dmp

                Filesize

                4KB

              • memory/740-54-0x000007FEFB8C1000-0x000007FEFB8C3000-memory.dmp

                Filesize

                8KB

              • memory/1056-183-0x00000000022F0000-0x00000000052F0000-memory.dmp

                Filesize

                48.0MB

              • memory/1736-170-0x0000000001CF0000-0x00000000051E0000-memory.dmp

                Filesize

                52.9MB

              • memory/2008-73-0x0000000000310000-0x0000000000311000-memory.dmp

                Filesize

                4KB

              • memory/2008-67-0x0000000000310000-0x0000000000311000-memory.dmp

                Filesize

                4KB

              • memory/2008-66-0x0000000000310000-0x0000000000311000-memory.dmp

                Filesize

                4KB

              • memory/2008-65-0x0000000002020000-0x0000000005020000-memory.dmp

                Filesize

                48.0MB

              • memory/2008-93-0x0000000000310000-0x0000000000311000-memory.dmp

                Filesize

                4KB

              • memory/2008-96-0x0000000000310000-0x0000000000311000-memory.dmp

                Filesize

                4KB

              • memory/2008-113-0x0000000000310000-0x0000000000311000-memory.dmp

                Filesize

                4KB