Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 01:01

General

  • Target
    0f359450e399eff8b4b9ae323a4e7a6569426735f3824a13756972f1b10d2606.jar
  • Size 481KB
  • Sample240603-bc68gadd91
  • SHA256 0f359450e399eff8b4b9ae323a4e7a6569426735f3824a13756972f1b10d2606
  • 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\0f359450e399eff8b4b9ae323a4e7a6569426735f3824a13756972f1b10d2606.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4204
    • 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:4568
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\0f359450e399eff8b4b9ae323a4e7a6569426735f3824a13756972f1b10d2606.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:4948
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\0f359450e399eff8b4b9ae323a4e7a6569426735f3824a13756972f1b10d2606.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4724
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\0f359450e399eff8b4b9ae323a4e7a6569426735f3824a13756972f1b10d2606.jar"
          4⤵
          • Creates scheduled task(s)
          PID:2864
      • 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\0f359450e399eff8b4b9ae323a4e7a6569426735f3824a13756972f1b10d2606.jar"
        3⤵
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:2572
        • 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:3952
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4584
        • 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:4608
          • 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:3596
        • 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:644
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:4148
          • 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:3848
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:4624
            • 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:4832

      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 acdcace683b5414045f4f79814c80118e18b3729de13dd06d0f6febdc3c79f4e
            • MD5 SHA1 SHA512

            3903daac9bc4a3b7.timestamp

            • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
            • Size 46B
            • SHA256 e0fecca3b0bf67d454a95d5a2fb0e6a6e7db1b368656eda8d16642f2eb5796ec
            • MD5 SHA1 SHA512

            0f359450e399eff8b4b9ae323a4e7a6569426735f3824a13756972f1b10d2606.jar

            • Path C:\Users\Admin\0f359450e399eff8b4b9ae323a4e7a6569426735f3824a13756972f1b10d2606.jar
            • Size 481KB
            • SHA256 0f359450e399eff8b4b9ae323a4e7a6569426735f3824a13756972f1b10d2606
            • MD5 SHA1 SHA512 SSDEEP

            __PSScriptPolicyTest_fpwbi35s.up0.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fpwbi35s.up0.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512

            jna1816942638988431710.dll

            • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna1816942638988431710.dll
            • Size 241KB
            • SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
            • MD5 SHA1 SHA512 SSDEEP

            sqlite-3.14.2.1-2f1f5280-fe1d-4710-a25f-5ac12188a126-sqlitejdbc.dll

            • Path C:\Users\Admin\AppData\Local\Temp\sqlite-3.14.2.1-2f1f5280-fe1d-4710-a25f-5ac12188a126-sqlitejdbc.dll
            • Size 914KB
            • SHA256 05a8557f5d197aca468f5272a2a869293cb11c2f0ab4839a17f144f9a5d0b77d
            • MD5 SHA1 SHA512 SSDEEP

            83aa4cc77f591dfc2374580bbd95f6ba_5a32ead2-14a8-4b34-b6a3-85cfb28e2fbd

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2804150937-2146708401-419095071-1000\83aa4cc77f591dfc2374580bbd95f6ba_5a32ead2-14a8-4b34-b6a3-85cfb28e2fbd
            • Size 45B
            • SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
            • MD5 SHA1 SHA512

            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/2572-417-0x0000024367320000-0x0000024367321000-memory.dmp

            memory/2572-432-0x0000000061680000-0x000000006176D000-memory.dmp

            memory/2572-387-0x0000024367320000-0x0000024367321000-memory.dmp

            memory/2572-385-0x0000024367320000-0x0000024367321000-memory.dmp

            memory/2572-356-0x0000024367320000-0x0000024367321000-memory.dmp

            memory/4204-118-0x000002E51C2E0000-0x000002E51C2F0000-memory.dmp

            memory/4204-125-0x000002E51C2F0000-0x000002E51C300000-memory.dmp

            memory/4204-39-0x000002E51BE00000-0x000002E51BE01000-memory.dmp

            memory/4204-46-0x000002E51C0A0000-0x000002E51C0B0000-memory.dmp

            memory/4204-45-0x000002E51C090000-0x000002E51C0A0000-memory.dmp

            memory/4204-44-0x000002E51C170000-0x000002E51C180000-memory.dmp

            memory/4204-43-0x000002E51C160000-0x000002E51C170000-memory.dmp

            memory/4204-42-0x000002E51C150000-0x000002E51C160000-memory.dmp

            memory/4204-41-0x000002E51BE20000-0x000002E51C090000-memory.dmp

            memory/4204-49-0x000002E51C180000-0x000002E51C190000-memory.dmp

            memory/4204-48-0x000002E51C0C0000-0x000002E51C0D0000-memory.dmp

            memory/4204-47-0x000002E51C0B0000-0x000002E51C0C0000-memory.dmp

            memory/4204-62-0x000002E51C100000-0x000002E51C110000-memory.dmp

            memory/4204-61-0x000002E51C0F0000-0x000002E51C100000-memory.dmp

            memory/4204-60-0x000002E51C0E0000-0x000002E51C0F0000-memory.dmp

            memory/4204-59-0x000002E51C1A0000-0x000002E51C1B0000-memory.dmp

            memory/4204-58-0x000002E51C190000-0x000002E51C1A0000-memory.dmp

            memory/4204-57-0x000002E51C0D0000-0x000002E51C0E0000-memory.dmp

            memory/4204-63-0x000002E51C1B0000-0x000002E51C1C0000-memory.dmp

            memory/4204-67-0x000002E51C1C0000-0x000002E51C1D0000-memory.dmp

            memory/4204-66-0x000002E51C110000-0x000002E51C120000-memory.dmp

            memory/4204-68-0x000002E51C120000-0x000002E51C130000-memory.dmp

            memory/4204-69-0x000002E51C1D0000-0x000002E51C1E0000-memory.dmp

            memory/4204-72-0x000002E51C130000-0x000002E51C140000-memory.dmp

            memory/4204-73-0x000002E51C1E0000-0x000002E51C1F0000-memory.dmp

            memory/4204-77-0x000002E51C200000-0x000002E51C210000-memory.dmp

            memory/4204-76-0x000002E51C1F0000-0x000002E51C200000-memory.dmp

            memory/4204-75-0x000002E51C140000-0x000002E51C150000-memory.dmp

            memory/4204-80-0x000002E51C150000-0x000002E51C160000-memory.dmp

            memory/4204-83-0x000002E51C220000-0x000002E51C230000-memory.dmp

            memory/4204-82-0x000002E51C210000-0x000002E51C220000-memory.dmp

            memory/4204-81-0x000002E51C160000-0x000002E51C170000-memory.dmp

            memory/4204-89-0x000002E51C240000-0x000002E51C250000-memory.dmp

            memory/4204-88-0x000002E51C180000-0x000002E51C190000-memory.dmp

            memory/4204-87-0x000002E51C230000-0x000002E51C240000-memory.dmp

            memory/4204-86-0x000002E51C170000-0x000002E51C180000-memory.dmp

            memory/4204-93-0x000002E51C250000-0x000002E51C260000-memory.dmp

            memory/4204-95-0x000002E51BE00000-0x000002E51BE01000-memory.dmp

            memory/4204-96-0x000002E51C1A0000-0x000002E51C1B0000-memory.dmp

            memory/4204-97-0x000002E51C260000-0x000002E51C270000-memory.dmp

            memory/4204-102-0x000002E51C270000-0x000002E51C280000-memory.dmp

            memory/4204-101-0x000002E51C1B0000-0x000002E51C1C0000-memory.dmp

            memory/4204-34-0x000002E51C130000-0x000002E51C140000-memory.dmp

            memory/4204-117-0x000002E51C2D0000-0x000002E51C2E0000-memory.dmp

            memory/4204-116-0x000002E51C2C0000-0x000002E51C2D0000-memory.dmp

            memory/4204-115-0x000002E51C2B0000-0x000002E51C2C0000-memory.dmp

            memory/4204-121-0x000002E51BE00000-0x000002E51BE01000-memory.dmp

            memory/4204-114-0x000002E51C2A0000-0x000002E51C2B0000-memory.dmp

            memory/4204-113-0x000002E51C290000-0x000002E51C2A0000-memory.dmp

            memory/4204-112-0x000002E51C280000-0x000002E51C290000-memory.dmp

            memory/4204-111-0x000002E51C1C0000-0x000002E51C1D0000-memory.dmp

            memory/4204-36-0x000002E51C140000-0x000002E51C150000-memory.dmp

            memory/4204-124-0x000002E51C1D0000-0x000002E51C1E0000-memory.dmp

            memory/4204-126-0x000002E51BE00000-0x000002E51BE01000-memory.dmp

            memory/4204-131-0x000002E51C310000-0x000002E51C320000-memory.dmp

            memory/4204-130-0x000002E51C300000-0x000002E51C310000-memory.dmp

            memory/4204-129-0x000002E51C1E0000-0x000002E51C1F0000-memory.dmp

            memory/4204-135-0x000002E51C320000-0x000002E51C330000-memory.dmp

            memory/4204-134-0x000002E51C200000-0x000002E51C210000-memory.dmp

            memory/4204-133-0x000002E51C1F0000-0x000002E51C200000-memory.dmp

            memory/4204-140-0x000002E51C330000-0x000002E51C340000-memory.dmp

            memory/4204-139-0x000002E51C230000-0x000002E51C240000-memory.dmp

            memory/4204-138-0x000002E51C220000-0x000002E51C230000-memory.dmp

            memory/4204-137-0x000002E51C210000-0x000002E51C220000-memory.dmp

            memory/4204-142-0x000002E51C340000-0x000002E51C350000-memory.dmp

            memory/4204-144-0x000002E51C240000-0x000002E51C250000-memory.dmp

            memory/4204-145-0x000002E51C350000-0x000002E51C360000-memory.dmp

            memory/4204-148-0x000002E51C250000-0x000002E51C260000-memory.dmp

            memory/4204-149-0x000002E51C360000-0x000002E51C370000-memory.dmp

            memory/4204-152-0x000002E51C370000-0x000002E51C380000-memory.dmp

            memory/4204-151-0x000002E51C260000-0x000002E51C270000-memory.dmp

            memory/4204-153-0x000002E51BE00000-0x000002E51BE01000-memory.dmp

            memory/4204-155-0x000002E51C270000-0x000002E51C280000-memory.dmp

            memory/4204-156-0x000002E51C380000-0x000002E51C390000-memory.dmp

            memory/4204-157-0x000002E51BE00000-0x000002E51BE01000-memory.dmp

            memory/4204-164-0x000002E51C280000-0x000002E51C290000-memory.dmp

            memory/4204-165-0x000002E51C290000-0x000002E51C2A0000-memory.dmp

            memory/4204-171-0x000002E51C390000-0x000002E51C3A0000-memory.dmp

            memory/4204-170-0x000002E51C2E0000-0x000002E51C2F0000-memory.dmp

            memory/4204-169-0x000002E51C2D0000-0x000002E51C2E0000-memory.dmp

            memory/4204-167-0x000002E51C2B0000-0x000002E51C2C0000-memory.dmp

            memory/4204-168-0x000002E51C2C0000-0x000002E51C2D0000-memory.dmp

            memory/4204-166-0x000002E51C2A0000-0x000002E51C2B0000-memory.dmp

            memory/4204-177-0x000002E51C2F0000-0x000002E51C300000-memory.dmp

            memory/4204-178-0x000002E51C3A0000-0x000002E51C3B0000-memory.dmp

            memory/4204-188-0x000002E51C0B0000-0x000002E51C0C0000-memory.dmp

            memory/4204-190-0x000002E51C1A0000-0x000002E51C1B0000-memory.dmp

            memory/4204-189-0x000002E51C0C0000-0x000002E51C0D0000-memory.dmp

            memory/4204-31-0x000002E51C120000-0x000002E51C130000-memory.dmp

            memory/4204-185-0x000002E51C170000-0x000002E51C180000-memory.dmp

            memory/4204-187-0x000002E51C0A0000-0x000002E51C0B0000-memory.dmp

            memory/4204-186-0x000002E51C090000-0x000002E51C0A0000-memory.dmp

            memory/4204-2-0x000002E51BE20000-0x000002E51C090000-memory.dmp

            memory/4204-28-0x000002E51C100000-0x000002E51C110000-memory.dmp

            memory/4204-29-0x000002E51C110000-0x000002E51C120000-memory.dmp

            memory/4204-25-0x000002E51C0F0000-0x000002E51C100000-memory.dmp

            memory/4204-24-0x000002E51C0E0000-0x000002E51C0F0000-memory.dmp

            memory/4204-22-0x000002E51C0D0000-0x000002E51C0E0000-memory.dmp

            memory/4204-18-0x000002E51C0B0000-0x000002E51C0C0000-memory.dmp

            memory/4204-19-0x000002E51C0C0000-0x000002E51C0D0000-memory.dmp

            memory/4204-16-0x000002E51C0A0000-0x000002E51C0B0000-memory.dmp

            memory/4204-15-0x000002E51C090000-0x000002E51C0A0000-memory.dmp

            memory/4948-262-0x0000022AD2250000-0x0000022AD2251000-memory.dmp