Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/06/2024, 08:13

General

  • Target
    ad747e59d4d15a7585dc5aa943ecd9c3258a7de57a7269c882ff436932f51e94.jar
  • Size 452KB
  • Sample240607-j4eljadb2w
  • SHA256 ad747e59d4d15a7585dc5aa943ecd9c3258a7de57a7269c882ff436932f51e94
  • 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 28 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\ad747e59d4d15a7585dc5aa943ecd9c3258a7de57a7269c882ff436932f51e94.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4628
    • 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:4404
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\ad747e59d4d15a7585dc5aa943ecd9c3258a7de57a7269c882ff436932f51e94.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1672
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\ad747e59d4d15a7585dc5aa943ecd9c3258a7de57a7269c882ff436932f51e94.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1916
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\ad747e59d4d15a7585dc5aa943ecd9c3258a7de57a7269c882ff436932f51e94.jar"
          4⤵
          • Creates scheduled task(s)
          PID:3780
      • 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\ad747e59d4d15a7585dc5aa943ecd9c3258a7de57a7269c882ff436932f51e94.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4792
        • 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:3144
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3972
        • 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:1816
          • 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:396
        • 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:900
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:800
          • 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:4704
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:3984
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              powershell.exe "[void][Windows.Security.Credentials.PasswordVault,Windows.Security.Credentials,ContentType=WindowsRuntime] $vault = New-Object Windows.Security.Credentials.PasswordVault $vault.RetrieveAll() | % { $_.RetrievePassword();$_ }"
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:1496

      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 95925579d7fe98e8ca147aadd76910b7c808d6c1e67470afb59e199bf79c0936
            • MD5 SHA1 SHA512

            3903daac9bc4a3b7.timestamp

            • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
            • Size 46B
            • SHA256 59164533c18fc30183bf100dfa26d8b55bc9ea54195d3dc9dcb8675c3b840b30
            • MD5 SHA1 SHA512

            __PSScriptPolicyTest_y3kxmqic.mst.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_y3kxmqic.mst.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512

            jna1164451488632766588.dll

            • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna1164451488632766588.dll
            • Size 241KB
            • SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
            • MD5 SHA1 SHA512 SSDEEP

            83aa4cc77f591dfc2374580bbd95f6ba_468f6343-c0e6-4931-9703-30c6539573cb

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2539840389-1261165778-1087677076-1000\83aa4cc77f591dfc2374580bbd95f6ba_468f6343-c0e6-4931-9703-30c6539573cb
            • Size 45B
            • SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
            • MD5 SHA1 SHA512

            ad747e59d4d15a7585dc5aa943ecd9c3258a7de57a7269c882ff436932f51e94.jar

            • Path C:\Users\Admin\ad747e59d4d15a7585dc5aa943ecd9c3258a7de57a7269c882ff436932f51e94.jar
            • Size 452KB
            • SHA256 ad747e59d4d15a7585dc5aa943ecd9c3258a7de57a7269c882ff436932f51e94
            • 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 4.1MB
            • SHA256 2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491
            • 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/1672-282-0x000001CA407C0000-0x000001CA407C1000-memory.dmp

            memory/1672-273-0x000001CA407C0000-0x000001CA407C1000-memory.dmp

            memory/4628-109-0x000001FBE4430000-0x000001FBE4440000-memory.dmp

            memory/4628-180-0x000001FBE4240000-0x000001FBE4250000-memory.dmp

            memory/4628-31-0x000001FBE42B0000-0x000001FBE42C0000-memory.dmp

            memory/4628-37-0x000001FBE42D0000-0x000001FBE42E0000-memory.dmp

            memory/4628-39-0x000001FBE42E0000-0x000001FBE42F0000-memory.dmp

            memory/4628-42-0x000001FBE3FB0000-0x000001FBE4220000-memory.dmp

            memory/4628-43-0x000001FBE4300000-0x000001FBE4310000-memory.dmp

            memory/4628-38-0x000001FBE42F0000-0x000001FBE4300000-memory.dmp

            memory/4628-36-0x000001FBE42C0000-0x000001FBE42D0000-memory.dmp

            memory/4628-30-0x000001FBE42A0000-0x000001FBE42B0000-memory.dmp

            memory/4628-44-0x000001FBE4220000-0x000001FBE4230000-memory.dmp

            memory/4628-45-0x000001FBE4310000-0x000001FBE4320000-memory.dmp

            memory/4628-46-0x000001FBE3F90000-0x000001FBE3F91000-memory.dmp

            memory/4628-52-0x000001FBE4230000-0x000001FBE4240000-memory.dmp

            memory/4628-53-0x000001FBE4320000-0x000001FBE4330000-memory.dmp

            memory/4628-55-0x000001FBE4240000-0x000001FBE4250000-memory.dmp

            memory/4628-56-0x000001FBE4330000-0x000001FBE4340000-memory.dmp

            memory/4628-58-0x000001FBE4250000-0x000001FBE4260000-memory.dmp

            memory/4628-61-0x000001FBE4340000-0x000001FBE4350000-memory.dmp

            memory/4628-60-0x000001FBE4270000-0x000001FBE4280000-memory.dmp

            memory/4628-64-0x000001FBE4350000-0x000001FBE4360000-memory.dmp

            memory/4628-59-0x000001FBE4260000-0x000001FBE4270000-memory.dmp

            memory/4628-71-0x000001FBE4380000-0x000001FBE4390000-memory.dmp

            memory/4628-70-0x000001FBE4370000-0x000001FBE4380000-memory.dmp

            memory/4628-77-0x000001FBE43B0000-0x000001FBE43C0000-memory.dmp

            memory/4628-76-0x000001FBE43A0000-0x000001FBE43B0000-memory.dmp

            memory/4628-75-0x000001FBE4390000-0x000001FBE43A0000-memory.dmp

            memory/4628-74-0x000001FBE4290000-0x000001FBE42A0000-memory.dmp

            memory/4628-68-0x000001FBE4360000-0x000001FBE4370000-memory.dmp

            memory/4628-67-0x000001FBE4280000-0x000001FBE4290000-memory.dmp

            memory/4628-81-0x000001FBE42A0000-0x000001FBE42B0000-memory.dmp

            memory/4628-83-0x000001FBE43C0000-0x000001FBE43D0000-memory.dmp

            memory/4628-82-0x000001FBE42B0000-0x000001FBE42C0000-memory.dmp

            memory/4628-86-0x000001FBE42C0000-0x000001FBE42D0000-memory.dmp

            memory/4628-85-0x000001FBE3F90000-0x000001FBE3F91000-memory.dmp

            memory/4628-87-0x000001FBE42D0000-0x000001FBE42E0000-memory.dmp

            memory/4628-90-0x000001FBE43D0000-0x000001FBE43E0000-memory.dmp

            memory/4628-88-0x000001FBE42F0000-0x000001FBE4300000-memory.dmp

            memory/4628-89-0x000001FBE42E0000-0x000001FBE42F0000-memory.dmp

            memory/4628-95-0x000001FBE4300000-0x000001FBE4310000-memory.dmp

            memory/4628-96-0x000001FBE43E0000-0x000001FBE43F0000-memory.dmp

            memory/4628-122-0x000001FBE4340000-0x000001FBE4350000-memory.dmp

            memory/4628-101-0x000001FBE4400000-0x000001FBE4410000-memory.dmp

            memory/4628-106-0x000001FBE4320000-0x000001FBE4330000-memory.dmp

            memory/4628-111-0x000001FBE4450000-0x000001FBE4460000-memory.dmp

            memory/4628-110-0x000001FBE4440000-0x000001FBE4450000-memory.dmp

            memory/4628-25-0x000001FBE4280000-0x000001FBE4290000-memory.dmp

            memory/4628-116-0x000001FBE3F90000-0x000001FBE3F91000-memory.dmp

            memory/4628-108-0x000001FBE4420000-0x000001FBE4430000-memory.dmp

            memory/4628-107-0x000001FBE4410000-0x000001FBE4420000-memory.dmp

            memory/4628-100-0x000001FBE43F0000-0x000001FBE4400000-memory.dmp

            memory/4628-118-0x000001FBE3F90000-0x000001FBE3F91000-memory.dmp

            memory/4628-28-0x000001FBE4290000-0x000001FBE42A0000-memory.dmp

            memory/4628-120-0x000001FBE4460000-0x000001FBE4470000-memory.dmp

            memory/4628-99-0x000001FBE4310000-0x000001FBE4320000-memory.dmp

            memory/4628-123-0x000001FBE4470000-0x000001FBE4480000-memory.dmp

            memory/4628-125-0x000001FBE3F90000-0x000001FBE3F91000-memory.dmp

            memory/4628-127-0x000001FBE4480000-0x000001FBE4490000-memory.dmp

            memory/4628-126-0x000001FBE4350000-0x000001FBE4360000-memory.dmp

            memory/4628-129-0x000001FBE4360000-0x000001FBE4370000-memory.dmp

            memory/4628-132-0x000001FBE4490000-0x000001FBE44A0000-memory.dmp

            memory/4628-131-0x000001FBE4380000-0x000001FBE4390000-memory.dmp

            memory/4628-130-0x000001FBE4370000-0x000001FBE4380000-memory.dmp

            memory/4628-137-0x000001FBE44A0000-0x000001FBE44B0000-memory.dmp

            memory/4628-136-0x000001FBE43B0000-0x000001FBE43C0000-memory.dmp

            memory/4628-141-0x000001FBE44B0000-0x000001FBE44C0000-memory.dmp

            memory/4628-140-0x000001FBE43C0000-0x000001FBE43D0000-memory.dmp

            memory/4628-135-0x000001FBE43A0000-0x000001FBE43B0000-memory.dmp

            memory/4628-134-0x000001FBE4390000-0x000001FBE43A0000-memory.dmp

            memory/4628-144-0x000001FBE44C0000-0x000001FBE44D0000-memory.dmp

            memory/4628-143-0x000001FBE43D0000-0x000001FBE43E0000-memory.dmp

            memory/4628-147-0x000001FBE44D0000-0x000001FBE44E0000-memory.dmp

            memory/4628-146-0x000001FBE43E0000-0x000001FBE43F0000-memory.dmp

            memory/4628-150-0x000001FBE4400000-0x000001FBE4410000-memory.dmp

            memory/4628-149-0x000001FBE43F0000-0x000001FBE4400000-memory.dmp

            memory/4628-151-0x000001FBE44E0000-0x000001FBE44F0000-memory.dmp

            memory/4628-153-0x000001FBE3F90000-0x000001FBE3F91000-memory.dmp

            memory/4628-157-0x000001FBE4410000-0x000001FBE4420000-memory.dmp

            memory/4628-160-0x000001FBE4440000-0x000001FBE4450000-memory.dmp

            memory/4628-162-0x000001FBE44F0000-0x000001FBE4500000-memory.dmp

            memory/4628-161-0x000001FBE4450000-0x000001FBE4460000-memory.dmp

            memory/4628-159-0x000001FBE4430000-0x000001FBE4440000-memory.dmp

            memory/4628-158-0x000001FBE4420000-0x000001FBE4430000-memory.dmp

            memory/4628-168-0x000001FBE4460000-0x000001FBE4470000-memory.dmp

            memory/4628-169-0x000001FBE4500000-0x000001FBE4510000-memory.dmp

            memory/4628-170-0x000001FBE3F90000-0x000001FBE3F91000-memory.dmp

            memory/4628-174-0x000001FBE4470000-0x000001FBE4480000-memory.dmp

            memory/4628-176-0x000001FBE3F90000-0x000001FBE3F91000-memory.dmp

            memory/4628-185-0x000001FBE4290000-0x000001FBE42A0000-memory.dmp

            memory/4628-184-0x000001FBE4270000-0x000001FBE4280000-memory.dmp

            memory/4628-183-0x000001FBE4280000-0x000001FBE4290000-memory.dmp

            memory/4628-182-0x000001FBE4260000-0x000001FBE4270000-memory.dmp

            memory/4628-181-0x000001FBE4250000-0x000001FBE4260000-memory.dmp

            memory/4628-119-0x000001FBE4330000-0x000001FBE4340000-memory.dmp

            memory/4628-24-0x000001FBE4270000-0x000001FBE4280000-memory.dmp

            memory/4628-20-0x000001FBE4250000-0x000001FBE4260000-memory.dmp

            memory/4628-21-0x000001FBE4260000-0x000001FBE4270000-memory.dmp

            memory/4628-18-0x000001FBE4240000-0x000001FBE4250000-memory.dmp

            memory/4628-179-0x000001FBE4230000-0x000001FBE4240000-memory.dmp

            memory/4628-178-0x000001FBE4220000-0x000001FBE4230000-memory.dmp

            memory/4628-177-0x000001FBE3FB0000-0x000001FBE4220000-memory.dmp

            memory/4628-2-0x000001FBE3FB0000-0x000001FBE4220000-memory.dmp

            memory/4628-16-0x000001FBE4230000-0x000001FBE4240000-memory.dmp

            memory/4628-14-0x000001FBE4220000-0x000001FBE4230000-memory.dmp

            memory/4792-320-0x000001ED96710000-0x000001ED96711000-memory.dmp