Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    13/12/2021, 15:17

General

  • Target

    SHIPMENT_DOCUMENTS_INV-PLIST01256_BL PDF.jar

  • Size

    95KB

  • MD5

    4d50a1df28610ffdb925d4a5b7bc6c0a

  • SHA1

    a5ade474fd1f83cf3ab959668e8736aff6922625

  • SHA256

    3380d42b418582b6f23cfd749f3f0851d9bffc66b51b338885f8aa7559479054

  • SHA512

    c1199915cddd509e6c149f320779cec6941c2ff361d51e4d5a152db7167b7963e095add1755c6a89987d664387834447932c695fbcfdf5d5cc6301f2f23eba29

Malware Config

Signatures

  • STRRAT

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

  • suricata: ET MALWARE STRRAT CnC Checkin

    suricata: ET MALWARE STRRAT CnC Checkin

  • Drops startup file 1 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.

  • 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 AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Windows\system32\java.exe
    java -jar "C:\Users\Admin\AppData\Local\Temp\SHIPMENT_DOCUMENTS_INV-PLIST01256_BL PDF.jar"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1284
    • C:\Program Files\Java\jre7\bin\java.exe
      "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\SHIPMENT_DOCUMENTS_INV-PLIST01256_BL PDF.jar"
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1996
      • C:\Windows\system32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\SHIPMENT_DOCUMENTS_INV-PLIST01256_BL PDF.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1628
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\SHIPMENT_DOCUMENTS_INV-PLIST01256_BL PDF.jar"
          4⤵
          • Creates scheduled task(s)
          PID:1412
      • C:\Program Files\Java\jre7\bin\java.exe
        "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\SHIPMENT_DOCUMENTS_INV-PLIST01256_BL PDF.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1632
        • C:\Windows\system32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1620
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:588
        • C:\Windows\system32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1520
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1656
        • C:\Windows\system32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1264
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:692
          • C:\Windows\system32\cmd.exe
            cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1480
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
              5⤵
                PID:1992

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/1284-62-0x0000000000220000-0x0000000000221000-memory.dmp

              Filesize

              4KB

            • memory/1284-54-0x000007FEFB781000-0x000007FEFB783000-memory.dmp

              Filesize

              8KB

            • memory/1284-67-0x0000000000220000-0x0000000000221000-memory.dmp

              Filesize

              4KB

            • memory/1284-68-0x0000000000220000-0x0000000000221000-memory.dmp

              Filesize

              4KB

            • memory/1284-56-0x0000000002220000-0x0000000002490000-memory.dmp

              Filesize

              2.4MB

            • memory/1284-57-0x0000000000220000-0x0000000000221000-memory.dmp

              Filesize

              4KB

            • memory/1284-55-0x0000000002220000-0x0000000002490000-memory.dmp

              Filesize

              2.4MB

            • memory/1284-58-0x0000000000220000-0x0000000000221000-memory.dmp

              Filesize

              4KB

            • memory/1284-70-0x0000000000220000-0x0000000000221000-memory.dmp

              Filesize

              4KB

            • memory/1284-66-0x0000000000220000-0x0000000000221000-memory.dmp

              Filesize

              4KB

            • memory/1632-95-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1632-96-0x00000000020B0000-0x0000000002320000-memory.dmp

              Filesize

              2.4MB

            • memory/1632-134-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1632-108-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1632-125-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1996-75-0x0000000002230000-0x00000000024A0000-memory.dmp

              Filesize

              2.4MB

            • memory/1996-74-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/1996-92-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/1996-84-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/1996-87-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB