Analysis

  • max time kernel
    147s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    21/01/2022, 13:07

General

  • Target

    Details.jar

  • Size

    177KB

  • MD5

    4d0c222fc711df5287903997326017b3

  • SHA1

    8da0d12aefac5d5186ef207386a8ea55dbca65c2

  • SHA256

    2eccadabbc22b45eda0581964ea8f540f7068f331c6a8f02df3ff84a5c625334

  • SHA512

    5f6a248ebf72c33e0ceded0a2317e314193529b029c8cde6c8ac9bb8730d8433cf00f155fbfa568377245fa7c3f2eab88b17ad600406032386d36ec0c2585cc4

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\Details.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:980
    • C:\Program Files\Java\jre7\bin\java.exe
      "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\Details.jar"
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1376
      • C:\Windows\system32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Details.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2020
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Details.jar"
          4⤵
          • Creates scheduled task(s)
          PID:1592
      • C:\Program Files\Java\jre7\bin\java.exe
        "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\Details.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1064
        • 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:632
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1884
        • 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:788
          • 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:1364
        • 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:1204
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:1380
          • 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:1368
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter' path antivirusproduct get displayname /format:list
              5⤵
                PID:1720

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/980-99-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-61-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-111-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-112-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-113-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-109-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-56-0x0000000002230000-0x0000000005230000-memory.dmp

              Filesize

              48.0MB

            • memory/980-108-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-107-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-106-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-105-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-100-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-54-0x000007FEFB931000-0x000007FEFB933000-memory.dmp

              Filesize

              8KB

            • memory/980-77-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-72-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-68-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-110-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-59-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/980-57-0x0000000000120000-0x0000000000121000-memory.dmp

              Filesize

              4KB

            • memory/1064-150-0x0000000001CF0000-0x0000000004FC0000-memory.dmp

              Filesize

              50.8MB

            • memory/1376-126-0x0000000002290000-0x0000000005290000-memory.dmp

              Filesize

              48.0MB