Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    13/12/2021, 15:17

General

  • Target

    Scanned.jar

  • Size

    101KB

  • MD5

    1c26fc689838571c525ab1956f441c92

  • SHA1

    873619c5b8264326cfb53c1a025b1bddf4da6e2a

  • SHA256

    0a6b8da241ae9c2fb8b7b8095ab51da1caedc0af4d56185bc47bb2b8158d8dc0

  • SHA512

    d6096c005f7366308deadd53f910dd3b3c248e3a2d4ff62fe59628fa6072939d6a7715221c1fabeeaa9648c7771c73805f96b82f936f5bd24b3daa69d8aa9bdf

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.

  • 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\Scanned.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1540
    • C:\Program Files\Java\jre7\bin\java.exe
      "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\Scanned.jar"
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1844
      • C:\Windows\system32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Scanned.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1912
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Scanned.jar"
          4⤵
          • Creates scheduled task(s)
          PID:1760
      • C:\Program Files\Java\jre7\bin\java.exe
        "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\Scanned.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1700
        • 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:1960
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1564
        • 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:1644
          • 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:1248
        • 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:1968
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:304
          • 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:1744
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
              5⤵
                PID:1480

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/1540-67-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-64-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-56-0x00000000021B0000-0x0000000002420000-memory.dmp

              Filesize

              2.4MB

            • memory/1540-77-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-70-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-69-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-68-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-59-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-65-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-71-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-74-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-61-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-58-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-63-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-73-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/1540-55-0x000007FEFBE21000-0x000007FEFBE23000-memory.dmp

              Filesize

              8KB

            • memory/1540-57-0x00000000021B0000-0x0000000002420000-memory.dmp

              Filesize

              2.4MB

            • memory/1700-133-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/1700-105-0x0000000002150000-0x00000000023C0000-memory.dmp

              Filesize

              2.4MB

            • memory/1700-104-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/1700-142-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/1700-112-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/1844-84-0x0000000002100000-0x0000000002370000-memory.dmp

              Filesize

              2.4MB

            • memory/1844-93-0x0000000000130000-0x0000000000131000-memory.dmp

              Filesize

              4KB

            • memory/1844-83-0x0000000000130000-0x0000000000131000-memory.dmp

              Filesize

              4KB

            • memory/1844-97-0x0000000000130000-0x0000000000131000-memory.dmp

              Filesize

              4KB