Analysis

  • max time kernel
    147s
  • max time network
    179s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    19-10-2021 14:07

General

  • Target

    PAYMENT SLIP .jar

  • Size

    184KB

  • MD5

    98f7c08f8008f97e210bfc4d00dbe4a1

  • SHA1

    30f02ead4606acf7ffb8a9b3a1f2423475c3ff2e

  • SHA256

    62229e0f4da3175320dff7b4783a373c6ede87d20ca8caff6b21a3674610509c

  • SHA512

    3cc83e48aa36129876fef5b734efdc7aa35197b36fcc66840c4605dadab5b61159269a71e33425bb1c2f3bda2ae0f49666dca619fb399a10f7dd647c7cb94564

Malware Config

Signatures

  • STRRAT

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

  • 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.

  • Drops file in Program Files directory 1 IoCs
  • 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 39 IoCs

Processes

  • C:\Windows\system32\java.exe
    java -jar "C:\Users\Admin\AppData\Local\Temp\PAYMENT SLIP .jar"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Program Files\Java\jre7\bin\java.exe
      "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Program Files\Java\jre7\PAYMENT SLIP .jar"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:956
      • C:\Program Files\Java\jre7\bin\java.exe
        "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\PAYMENT SLIP .jar"
        3⤵
        • Drops startup file
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:1056
        • C:\Windows\system32\cmd.exe
          cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\PAYMENT SLIP .jar"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1736
          • C:\Windows\system32\schtasks.exe
            schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\PAYMENT SLIP .jar"
            5⤵
            • Creates scheduled task(s)
            PID:1932
        • C:\Program Files\Java\jre7\bin\java.exe
          "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\PAYMENT SLIP .jar"
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1768
          • C:\Windows\system32\cmd.exe
            cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1176
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1604
          • C:\Windows\system32\cmd.exe
            cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1684
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:320
          • C:\Windows\system32\cmd.exe
            cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1300
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
              6⤵
                PID:2044
            • C:\Windows\system32\cmd.exe
              cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1496
              • C:\Windows\System32\Wbem\WMIC.exe
                wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
                6⤵
                  PID:1672

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/956-82-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/956-79-0x0000000001FB0000-0x0000000002220000-memory.dmp

        Filesize

        2.4MB

      • memory/956-80-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/1056-96-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/1056-86-0x00000000021F0000-0x0000000002460000-memory.dmp

        Filesize

        2.4MB

      • memory/1056-87-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/1768-117-0x0000000000420000-0x0000000000421000-memory.dmp

        Filesize

        4KB

      • memory/1768-108-0x0000000000420000-0x0000000000421000-memory.dmp

        Filesize

        4KB

      • memory/1768-101-0x0000000002260000-0x00000000024D0000-memory.dmp

        Filesize

        2.4MB

      • memory/1768-102-0x0000000000420000-0x0000000000421000-memory.dmp

        Filesize

        4KB

      • memory/2020-62-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/2020-63-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/2020-56-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/2020-55-0x00000000021A0000-0x0000000002410000-memory.dmp

        Filesize

        2.4MB

      • memory/2020-60-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/2020-61-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/2020-53-0x000007FEFC461000-0x000007FEFC463000-memory.dmp

        Filesize

        8KB

      • memory/2020-57-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/2020-64-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/2020-75-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/2020-69-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/2020-54-0x00000000021A0000-0x0000000002410000-memory.dmp

        Filesize

        2.4MB

      • memory/2020-68-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/2020-67-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB

      • memory/2020-65-0x0000000000220000-0x0000000000221000-memory.dmp

        Filesize

        4KB