Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/06/2024, 01:24

General

  • Target
    2abfed09bc56ccecb1c01b8a9f68ab7a7a53ea1d6a3a1a598a3914d8a71e4187.jar
  • Size 546KB
  • Sample240607-bsdk4afb51
  • SHA256 2abfed09bc56ccecb1c01b8a9f68ab7a7a53ea1d6a3a1a598a3914d8a71e4187
  • MD5 SHA1 SHA512 SSDEEP

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 1 IoCs
  • Modifies file permissions 1 TTPs 1 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 26 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\2abfed09bc56ccecb1c01b8a9f68ab7a7a53ea1d6a3a1a598a3914d8a71e4187.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3540
    • C:\Windows\system32\icacls.exe
      C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
      2⤵
      • Modifies file permissions
      PID:4480
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\2abfed09bc56ccecb1c01b8a9f68ab7a7a53ea1d6a3a1a598a3914d8a71e4187.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:4812
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\2abfed09bc56ccecb1c01b8a9f68ab7a7a53ea1d6a3a1a598a3914d8a71e4187.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:5104
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\2abfed09bc56ccecb1c01b8a9f68ab7a7a53ea1d6a3a1a598a3914d8a71e4187.jar"
          4⤵
          • Creates scheduled task(s)
          PID:2976
      • C:\Program Files\Java\jre-1.8\bin\java.exe
        "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\2abfed09bc56ccecb1c01b8a9f68ab7a7a53ea1d6a3a1a598a3914d8a71e4187.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4588
        • 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:5060
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:408
        • 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:3952
          • 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:3524
        • 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:4744
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:1948
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1364
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:4396

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            3903daac9bc4a3b7.timestamp

            • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
            • Size 46B
            • SHA256 638c944a0174e9aefb932728134589183c3766decd59993b526ac90244bc8595
            • MD5 SHA1 SHA512

            3903daac9bc4a3b7.timestamp

            • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
            • Size 46B
            • SHA256 63ab799e981cec7cae29db1efbacf88727792edf3ddc9fdfdf1b8398c0498bd5
            • MD5 SHA1 SHA512

            2abfed09bc56ccecb1c01b8a9f68ab7a7a53ea1d6a3a1a598a3914d8a71e4187.jar

            • Path C:\Users\Admin\2abfed09bc56ccecb1c01b8a9f68ab7a7a53ea1d6a3a1a598a3914d8a71e4187.jar
            • Size 546KB
            • SHA256 2abfed09bc56ccecb1c01b8a9f68ab7a7a53ea1d6a3a1a598a3914d8a71e4187
            • MD5 SHA1 SHA512 SSDEEP

            jna6450399978234868052.dll

            • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna6450399978234868052.dll
            • Size 241KB
            • SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
            • MD5 SHA1 SHA512 SSDEEP

            83aa4cc77f591dfc2374580bbd95f6ba_41e50f4a-4a76-42e1-a3df-51306e426307

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-540404634-651139247-2967210625-1000\83aa4cc77f591dfc2374580bbd95f6ba_41e50f4a-4a76-42e1-a3df-51306e426307
            • Size 45B
            • SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
            • MD5 SHA1 SHA512

            sqlite-jdbc-3.14.2.1.jar

            • Path C:\Users\Admin\AppData\Roaming\lib\sqlite-jdbc-3.14.2.1.jar
            • Size 4.1MB
            • SHA256 2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491
            • MD5 SHA1 SHA512 SSDEEP

            jna-5.5.0.jar

            • Path C:\Users\Admin\lib\jna-5.5.0.jar
            • Size 1.4MB
            • SHA256 b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e
            • MD5 SHA1 SHA512 SSDEEP

            jna-platform-5.5.0.jar

            • Path C:\Users\Admin\lib\jna-platform-5.5.0.jar
            • Size 2.6MB
            • SHA256 24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5
            • MD5 SHA1 SHA512 SSDEEP

            sqlite-jdbc-3.14.2.1.jar

            • Path C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar
            • Size 1.8MB
            • SHA256 4370d89e9265d7c623e2e06afd30ba386df100dcd7b6517caf5cb895ffeb9afa
            • MD5 SHA1 SHA512 SSDEEP

            system-hook-3.5.jar

            • Path C:\Users\Admin\lib\system-hook-3.5.jar
            • Size 772KB
            • SHA256 2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609
            • MD5 SHA1 SHA512 SSDEEP

            memory/3540-110-0x000001B680390000-0x000001B6803A0000-memory.dmp

            memory/3540-111-0x000001B680460000-0x000001B680470000-memory.dmp

            memory/3540-88-0x000001B6803F0000-0x000001B680400000-memory.dmp

            memory/3540-37-0x000001B680320000-0x000001B680330000-memory.dmp

            memory/3540-43-0x000001B680330000-0x000001B680340000-memory.dmp

            memory/3540-54-0x000001B680360000-0x000001B680370000-memory.dmp

            memory/3540-65-0x000001B680390000-0x000001B6803A0000-memory.dmp

            memory/3540-72-0x000001B6803C0000-0x000001B6803D0000-memory.dmp

            memory/3540-71-0x000001B680310000-0x000001B680320000-memory.dmp

            memory/3540-70-0x000001B6803B0000-0x000001B6803C0000-memory.dmp

            memory/3540-69-0x000001B680300000-0x000001B680310000-memory.dmp

            memory/3540-67-0x000001B6803A0000-0x000001B6803B0000-memory.dmp

            memory/3540-64-0x000001B680380000-0x000001B680390000-memory.dmp

            memory/3540-78-0x000001B6803D0000-0x000001B6803E0000-memory.dmp

            memory/3540-77-0x000001B680320000-0x000001B680330000-memory.dmp

            memory/3540-83-0x000001B6803E0000-0x000001B6803F0000-memory.dmp

            memory/3540-89-0x000001B680400000-0x000001B680410000-memory.dmp

            memory/3540-93-0x000001B680420000-0x000001B680430000-memory.dmp

            memory/3540-97-0x000001B680430000-0x000001B680440000-memory.dmp

            memory/3540-103-0x000001B680450000-0x000001B680460000-memory.dmp

            memory/3540-102-0x000001B680440000-0x000001B680450000-memory.dmp

            memory/3540-112-0x000001B6EFD90000-0x000001B6EFD91000-memory.dmp

            memory/3540-115-0x000001B680470000-0x000001B680480000-memory.dmp

            memory/3540-114-0x000001B6803A0000-0x000001B6803B0000-memory.dmp

            memory/3540-117-0x000001B6803B0000-0x000001B6803C0000-memory.dmp

            memory/3540-120-0x000001B6803C0000-0x000001B6803D0000-memory.dmp

            memory/3540-121-0x000001B680490000-0x000001B6804A0000-memory.dmp

            memory/3540-118-0x000001B680480000-0x000001B680490000-memory.dmp

            memory/3540-124-0x000001B6804A0000-0x000001B6804B0000-memory.dmp

            memory/3540-123-0x000001B6803D0000-0x000001B6803E0000-memory.dmp

            memory/3540-91-0x000001B680350000-0x000001B680360000-memory.dmp

            memory/3540-109-0x000001B680380000-0x000001B680390000-memory.dmp

            memory/3540-131-0x000001B6804C0000-0x000001B6804D0000-memory.dmp

            memory/3540-130-0x000001B680400000-0x000001B680410000-memory.dmp

            memory/3540-136-0x000001B6804D0000-0x000001B6804E0000-memory.dmp

            memory/3540-135-0x000001B680420000-0x000001B680430000-memory.dmp

            memory/3540-134-0x000001B680410000-0x000001B680420000-memory.dmp

            memory/3540-141-0x000001B6EFD90000-0x000001B6EFD91000-memory.dmp

            memory/3540-139-0x000001B6804E0000-0x000001B6804F0000-memory.dmp

            memory/3540-147-0x000001B6804F0000-0x000001B680500000-memory.dmp

            memory/3540-146-0x000001B680450000-0x000001B680460000-memory.dmp

            memory/3540-145-0x000001B680440000-0x000001B680450000-memory.dmp

            memory/3540-92-0x000001B680410000-0x000001B680420000-memory.dmp

            memory/3540-129-0x000001B6803F0000-0x000001B680400000-memory.dmp

            memory/3540-128-0x000001B6804B0000-0x000001B6804C0000-memory.dmp

            memory/3540-152-0x000001B680500000-0x000001B680510000-memory.dmp

            memory/3540-151-0x000001B680460000-0x000001B680470000-memory.dmp

            memory/3540-127-0x000001B6803E0000-0x000001B6803F0000-memory.dmp

            memory/3540-20-0x000001B6802A0000-0x000001B6802B0000-memory.dmp

            memory/3540-101-0x000001B680370000-0x000001B680380000-memory.dmp

            memory/3540-99-0x000001B6EFD90000-0x000001B6EFD91000-memory.dmp

            memory/3540-96-0x000001B680360000-0x000001B680370000-memory.dmp

            memory/3540-138-0x000001B680430000-0x000001B680440000-memory.dmp

            memory/3540-32-0x000001B680300000-0x000001B680310000-memory.dmp

            memory/3540-34-0x000001B680310000-0x000001B680320000-memory.dmp

            memory/3540-87-0x000001B680340000-0x000001B680350000-memory.dmp

            memory/3540-82-0x000001B680330000-0x000001B680340000-memory.dmp

            memory/3540-76-0x000001B6EFD90000-0x000001B6EFD91000-memory.dmp

            memory/3540-62-0x000001B6802F0000-0x000001B680300000-memory.dmp

            memory/3540-61-0x000001B6802E0000-0x000001B6802F0000-memory.dmp

            memory/3540-59-0x000001B680370000-0x000001B680380000-memory.dmp

            memory/3540-58-0x000001B6802D0000-0x000001B6802E0000-memory.dmp

            memory/3540-57-0x000001B6802C0000-0x000001B6802D0000-memory.dmp

            memory/3540-53-0x000001B6802B0000-0x000001B6802C0000-memory.dmp

            memory/3540-51-0x000001B6802A0000-0x000001B6802B0000-memory.dmp

            memory/3540-157-0x000001B6EFD90000-0x000001B6EFD91000-memory.dmp

            memory/3540-50-0x000001B680350000-0x000001B680360000-memory.dmp

            memory/3540-49-0x000001B680340000-0x000001B680350000-memory.dmp

            memory/3540-48-0x000001B680290000-0x000001B6802A0000-memory.dmp

            memory/3540-47-0x000001B680280000-0x000001B680290000-memory.dmp

            memory/3540-46-0x000001B680270000-0x000001B680280000-memory.dmp

            memory/3540-36-0x000001B680000000-0x000001B680270000-memory.dmp

            memory/3540-31-0x000001B6802F0000-0x000001B680300000-memory.dmp

            memory/3540-30-0x000001B6EFD90000-0x000001B6EFD91000-memory.dmp

            memory/3540-28-0x000001B6802E0000-0x000001B6802F0000-memory.dmp

            memory/3540-16-0x000001B680280000-0x000001B680290000-memory.dmp

            memory/3540-15-0x000001B680270000-0x000001B680280000-memory.dmp

            memory/3540-159-0x000001B680470000-0x000001B680480000-memory.dmp

            memory/3540-166-0x000001B6802A0000-0x000001B6802B0000-memory.dmp

            memory/3540-180-0x000001B680380000-0x000001B680390000-memory.dmp

            memory/3540-179-0x000001B680370000-0x000001B680380000-memory.dmp

            memory/3540-178-0x000001B680360000-0x000001B680370000-memory.dmp

            memory/3540-25-0x000001B6802C0000-0x000001B6802D0000-memory.dmp

            memory/3540-177-0x000001B680270000-0x000001B680280000-memory.dmp

            memory/3540-176-0x000001B680340000-0x000001B680350000-memory.dmp

            memory/3540-175-0x000001B680330000-0x000001B680340000-memory.dmp

            memory/3540-174-0x000001B680320000-0x000001B680330000-memory.dmp

            memory/3540-173-0x000001B680310000-0x000001B680320000-memory.dmp

            memory/3540-172-0x000001B6802F0000-0x000001B680300000-memory.dmp

            memory/3540-171-0x000001B680300000-0x000001B680310000-memory.dmp

            memory/3540-170-0x000001B6802E0000-0x000001B6802F0000-memory.dmp

            memory/3540-169-0x000001B6802D0000-0x000001B6802E0000-memory.dmp

            memory/3540-168-0x000001B6802C0000-0x000001B6802D0000-memory.dmp

            memory/3540-167-0x000001B680000000-0x000001B680270000-memory.dmp

            memory/3540-26-0x000001B6802D0000-0x000001B6802E0000-memory.dmp

            memory/3540-21-0x000001B6802B0000-0x000001B6802C0000-memory.dmp

            memory/3540-2-0x000001B680000000-0x000001B680270000-memory.dmp

            memory/3540-165-0x000001B680290000-0x000001B6802A0000-memory.dmp

            memory/3540-164-0x000001B680280000-0x000001B680290000-memory.dmp

            memory/3540-163-0x000001B680350000-0x000001B680360000-memory.dmp

            memory/3540-162-0x000001B6802B0000-0x000001B6802C0000-memory.dmp

            memory/3540-161-0x000001B6EFD90000-0x000001B6EFD91000-memory.dmp

            memory/3540-17-0x000001B680290000-0x000001B6802A0000-memory.dmp

            memory/4588-293-0x000001FD44B70000-0x000001FD44B71000-memory.dmp

            memory/4588-309-0x000001FD44B70000-0x000001FD44B71000-memory.dmp

            memory/4812-252-0x0000027820EA0000-0x0000027820EA1000-memory.dmp