Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/06/2024, 07:34

General

  • Target
    ad747e59d4d15a7585dc5aa943ecd9c3258a7de57a7269c882ff436932f51e94.jar
  • Size 452KB
  • Sample240608-jd68vsbb46
  • 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 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\ad747e59d4d15a7585dc5aa943ecd9c3258a7de57a7269c882ff436932f51e94.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2916
    • 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:4408
    • 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:1156
      • 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:1660
        • 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:3684
      • 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:4484
        • 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:5116
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2272
        • 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:1972
          • 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:2564
        • 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:3200
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:1176
          • 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:3468
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:3916

      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 091ed886562d9fb197fe65a3fc2eab1ffc7fd23b1de44ae7a5db6fc0a22e674d
            • MD5 SHA1 SHA512

            jna7937060933334416868.dll

            • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna7937060933334416868.dll
            • Size 241KB
            • SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
            • 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

            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/1156-263-0x00000228C0240000-0x00000228C0241000-memory.dmp

            memory/2916-97-0x000001CA80330000-0x000001CA80340000-memory.dmp

            memory/2916-184-0x000001CA802A0000-0x000001CA802B0000-memory.dmp

            memory/2916-25-0x000001CA802D0000-0x000001CA802E0000-memory.dmp

            memory/2916-27-0x000001CA802E0000-0x000001CA802F0000-memory.dmp

            memory/2916-31-0x000001CA80300000-0x000001CA80310000-memory.dmp

            memory/2916-30-0x000001CA802F0000-0x000001CA80300000-memory.dmp

            memory/2916-34-0x000001CA80310000-0x000001CA80320000-memory.dmp

            memory/2916-42-0x000001CA80350000-0x000001CA80360000-memory.dmp

            memory/2916-41-0x000001CA80340000-0x000001CA80350000-memory.dmp

            memory/2916-40-0x000001CA80330000-0x000001CA80340000-memory.dmp

            memory/2916-39-0x000001CA80320000-0x000001CA80330000-memory.dmp

            memory/2916-38-0x000001CA80000000-0x000001CA80270000-memory.dmp

            memory/2916-44-0x000001CAF6DC0000-0x000001CAF6DC1000-memory.dmp

            memory/2916-46-0x000001CA80360000-0x000001CA80370000-memory.dmp

            memory/2916-45-0x000001CA80270000-0x000001CA80280000-memory.dmp

            memory/2916-49-0x000001CA80290000-0x000001CA802A0000-memory.dmp

            memory/2916-50-0x000001CA80370000-0x000001CA80380000-memory.dmp

            memory/2916-48-0x000001CA80280000-0x000001CA80290000-memory.dmp

            memory/2916-57-0x000001CA80380000-0x000001CA80390000-memory.dmp

            memory/2916-56-0x000001CA802A0000-0x000001CA802B0000-memory.dmp

            memory/2916-61-0x000001CA802C0000-0x000001CA802D0000-memory.dmp

            memory/2916-60-0x000001CA802B0000-0x000001CA802C0000-memory.dmp

            memory/2916-63-0x000001CA803A0000-0x000001CA803B0000-memory.dmp

            memory/2916-62-0x000001CA80390000-0x000001CA803A0000-memory.dmp

            memory/2916-66-0x000001CA803B0000-0x000001CA803C0000-memory.dmp

            memory/2916-65-0x000001CA802D0000-0x000001CA802E0000-memory.dmp

            memory/2916-74-0x000001CA803D0000-0x000001CA803E0000-memory.dmp

            memory/2916-77-0x000001CA80400000-0x000001CA80410000-memory.dmp

            memory/2916-76-0x000001CA803F0000-0x000001CA80400000-memory.dmp

            memory/2916-75-0x000001CA803E0000-0x000001CA803F0000-memory.dmp

            memory/2916-73-0x000001CA803C0000-0x000001CA803D0000-memory.dmp

            memory/2916-72-0x000001CA802E0000-0x000001CA802F0000-memory.dmp

            memory/2916-81-0x000001CA80410000-0x000001CA80420000-memory.dmp

            memory/2916-80-0x000001CA802F0000-0x000001CA80300000-memory.dmp

            memory/2916-84-0x000001CAF6DC0000-0x000001CAF6DC1000-memory.dmp

            memory/2916-86-0x000001CA80420000-0x000001CA80430000-memory.dmp

            memory/2916-85-0x000001CA80300000-0x000001CA80310000-memory.dmp

            memory/2916-90-0x000001CA80310000-0x000001CA80320000-memory.dmp

            memory/2916-91-0x000001CA80430000-0x000001CA80440000-memory.dmp

            memory/2916-95-0x000001CA80320000-0x000001CA80330000-memory.dmp

            memory/2916-105-0x000001CA80470000-0x000001CA80480000-memory.dmp

            memory/2916-120-0x000001CA80380000-0x000001CA80390000-memory.dmp

            memory/2916-103-0x000001CA80460000-0x000001CA80470000-memory.dmp

            memory/2916-102-0x000001CA80450000-0x000001CA80460000-memory.dmp

            memory/2916-100-0x000001CA80440000-0x000001CA80450000-memory.dmp

            memory/2916-99-0x000001CA80350000-0x000001CA80360000-memory.dmp

            memory/2916-23-0x000001CA802B0000-0x000001CA802C0000-memory.dmp

            memory/2916-98-0x000001CA80340000-0x000001CA80350000-memory.dmp

            memory/2916-109-0x000001CA80370000-0x000001CA80380000-memory.dmp

            memory/2916-113-0x000001CA804B0000-0x000001CA804C0000-memory.dmp

            memory/2916-112-0x000001CA804A0000-0x000001CA804B0000-memory.dmp

            memory/2916-111-0x000001CA80490000-0x000001CA804A0000-memory.dmp

            memory/2916-24-0x000001CA802C0000-0x000001CA802D0000-memory.dmp

            memory/2916-117-0x000001CAF6DC0000-0x000001CAF6DC1000-memory.dmp

            memory/2916-104-0x000001CA80360000-0x000001CA80370000-memory.dmp

            memory/2916-121-0x000001CA804C0000-0x000001CA804D0000-memory.dmp

            memory/2916-122-0x000001CAF6DC0000-0x000001CAF6DC1000-memory.dmp

            memory/2916-126-0x000001CA804D0000-0x000001CA804E0000-memory.dmp

            memory/2916-125-0x000001CA803A0000-0x000001CA803B0000-memory.dmp

            memory/2916-124-0x000001CA80390000-0x000001CA803A0000-memory.dmp

            memory/2916-129-0x000001CA804E0000-0x000001CA804F0000-memory.dmp

            memory/2916-128-0x000001CA803B0000-0x000001CA803C0000-memory.dmp

            memory/2916-131-0x000001CA803C0000-0x000001CA803D0000-memory.dmp

            memory/2916-133-0x000001CA803E0000-0x000001CA803F0000-memory.dmp

            memory/2916-136-0x000001CA804F0000-0x000001CA80500000-memory.dmp

            memory/2916-135-0x000001CA80400000-0x000001CA80410000-memory.dmp

            memory/2916-134-0x000001CA803F0000-0x000001CA80400000-memory.dmp

            memory/2916-132-0x000001CA803D0000-0x000001CA803E0000-memory.dmp

            memory/2916-139-0x000001CA80500000-0x000001CA80510000-memory.dmp

            memory/2916-138-0x000001CA80410000-0x000001CA80420000-memory.dmp

            memory/2916-142-0x000001CA80510000-0x000001CA80520000-memory.dmp

            memory/2916-141-0x000001CA80420000-0x000001CA80430000-memory.dmp

            memory/2916-146-0x000001CA80520000-0x000001CA80530000-memory.dmp

            memory/2916-145-0x000001CA80440000-0x000001CA80450000-memory.dmp

            memory/2916-144-0x000001CA80430000-0x000001CA80440000-memory.dmp

            memory/2916-149-0x000001CA80450000-0x000001CA80460000-memory.dmp

            memory/2916-150-0x000001CA80530000-0x000001CA80540000-memory.dmp

            memory/2916-153-0x000001CAF6DC0000-0x000001CAF6DC1000-memory.dmp

            memory/2916-157-0x000001CA80460000-0x000001CA80470000-memory.dmp

            memory/2916-160-0x000001CA80550000-0x000001CA80560000-memory.dmp

            memory/2916-159-0x000001CA80540000-0x000001CA80550000-memory.dmp

            memory/2916-158-0x000001CA80470000-0x000001CA80480000-memory.dmp

            memory/2916-166-0x000001CA80480000-0x000001CA80490000-memory.dmp

            memory/2916-167-0x000001CA80490000-0x000001CA804A0000-memory.dmp

            memory/2916-170-0x000001CA80560000-0x000001CA80570000-memory.dmp

            memory/2916-169-0x000001CA804B0000-0x000001CA804C0000-memory.dmp

            memory/2916-168-0x000001CA804A0000-0x000001CA804B0000-memory.dmp

            memory/2916-173-0x000001CAF6DC0000-0x000001CAF6DC1000-memory.dmp

            memory/2916-175-0x000001CA804C0000-0x000001CA804D0000-memory.dmp

            memory/2916-178-0x000001CAF6DC0000-0x000001CAF6DC1000-memory.dmp

            memory/2916-187-0x000001CA802D0000-0x000001CA802E0000-memory.dmp

            memory/2916-186-0x000001CA802C0000-0x000001CA802D0000-memory.dmp

            memory/2916-185-0x000001CA802B0000-0x000001CA802C0000-memory.dmp

            memory/2916-110-0x000001CA80480000-0x000001CA80490000-memory.dmp

            memory/2916-183-0x000001CA80290000-0x000001CA802A0000-memory.dmp

            memory/2916-20-0x000001CA802A0000-0x000001CA802B0000-memory.dmp

            memory/2916-16-0x000001CA80280000-0x000001CA80290000-memory.dmp

            memory/2916-17-0x000001CA80290000-0x000001CA802A0000-memory.dmp

            memory/2916-182-0x000001CA80280000-0x000001CA80290000-memory.dmp

            memory/2916-181-0x000001CA80270000-0x000001CA80280000-memory.dmp

            memory/2916-180-0x000001CA80000000-0x000001CA80270000-memory.dmp

            memory/2916-2-0x000001CA80000000-0x000001CA80270000-memory.dmp

            memory/2916-13-0x000001CA80270000-0x000001CA80280000-memory.dmp

            memory/4484-339-0x00000177CE770000-0x00000177CE771000-memory.dmp

            memory/4484-358-0x00000177CE770000-0x00000177CE771000-memory.dmp