Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    18/12/2021, 08:50

General

  • Target

    SHIPMENT_DOCUMENTS_BL_INV_PKLISTS XLS.jar

  • Size

    103KB

  • MD5

    25d7be8c2f534dca289f50a193a5418d

  • SHA1

    020aa3a275641eb88e07df1ed222f14944f80785

  • SHA256

    ad13f2f5590aa12b204c3713520f605595ab04f468577424effd742251a35712

  • SHA512

    9ccd9bf4756aa464fd9eb516448ad9f650c38ebed61f0a0eb3979b66c4f8e57f84bbc0b62c437fd56a7fc5e7c798f42a6da10f4edabf2b52e51bed970f35845e

Malware Config

Signatures

  • STRRAT

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

  • suricata: ET MALWARE STRRAT Initial HTTP Activity

    suricata: ET MALWARE STRRAT Initial HTTP Activity

  • Drops startup file 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 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 WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\system32\java.exe
    java -jar "C:\Users\Admin\AppData\Local\Temp\SHIPMENT_DOCUMENTS_BL_INV_PKLISTS XLS.jar"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Program Files\Java\jre7\bin\java.exe
      "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\SHIPMENT_DOCUMENTS_BL_INV_PKLISTS XLS.jar"
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1880
      • C:\Windows\system32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\SHIPMENT_DOCUMENTS_BL_INV_PKLISTS XLS.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1716
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\SHIPMENT_DOCUMENTS_BL_INV_PKLISTS XLS.jar"
          4⤵
          • Creates scheduled task(s)
          PID:848
      • C:\Program Files\Java\jre7\bin\java.exe
        "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\SHIPMENT_DOCUMENTS_BL_INV_PKLISTS XLS.jar"
        3⤵
        • Loads dropped DLL
        PID:1648

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1648-96-0x0000000000120000-0x0000000000121000-memory.dmp

          Filesize

          4KB

        • memory/1648-97-0x00000000021E0000-0x0000000002450000-memory.dmp

          Filesize

          2.4MB

        • memory/1648-135-0x0000000000120000-0x0000000000121000-memory.dmp

          Filesize

          4KB

        • memory/1648-134-0x0000000000120000-0x0000000000121000-memory.dmp

          Filesize

          4KB

        • memory/1648-104-0x0000000000120000-0x0000000000121000-memory.dmp

          Filesize

          4KB

        • memory/1752-56-0x00000000020B0000-0x0000000002320000-memory.dmp

          Filesize

          2.4MB

        • memory/1752-62-0x0000000000120000-0x0000000000121000-memory.dmp

          Filesize

          4KB

        • memory/1752-66-0x0000000000120000-0x0000000000121000-memory.dmp

          Filesize

          4KB

        • memory/1752-65-0x0000000000120000-0x0000000000121000-memory.dmp

          Filesize

          4KB

        • memory/1752-59-0x0000000000120000-0x0000000000121000-memory.dmp

          Filesize

          4KB

        • memory/1752-55-0x000007FEFC261000-0x000007FEFC263000-memory.dmp

          Filesize

          8KB

        • memory/1752-64-0x0000000000120000-0x0000000000121000-memory.dmp

          Filesize

          4KB

        • memory/1752-57-0x00000000020B0000-0x0000000002320000-memory.dmp

          Filesize

          2.4MB

        • memory/1752-63-0x0000000000120000-0x0000000000121000-memory.dmp

          Filesize

          4KB

        • memory/1752-58-0x0000000000120000-0x0000000000121000-memory.dmp

          Filesize

          4KB

        • memory/1880-75-0x0000000000220000-0x0000000000221000-memory.dmp

          Filesize

          4KB

        • memory/1880-94-0x0000000000220000-0x0000000000221000-memory.dmp

          Filesize

          4KB

        • memory/1880-87-0x0000000000220000-0x0000000000221000-memory.dmp

          Filesize

          4KB

        • memory/1880-74-0x00000000022A0000-0x0000000002510000-memory.dmp

          Filesize

          2.4MB