Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/06/2024, 02:50

General

  • Target
    de9c4c756623a2893c8ea5a8918ab8796ebe248bc956aba788ba7e84ed420a28.jar
  • Size 452KB
  • Sample240607-dbtbbsge31
  • SHA256 de9c4c756623a2893c8ea5a8918ab8796ebe248bc956aba788ba7e84ed420a28
  • 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\de9c4c756623a2893c8ea5a8918ab8796ebe248bc956aba788ba7e84ed420a28.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4060
    • 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:4784
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\de9c4c756623a2893c8ea5a8918ab8796ebe248bc956aba788ba7e84ed420a28.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\de9c4c756623a2893c8ea5a8918ab8796ebe248bc956aba788ba7e84ed420a28.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:780
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\de9c4c756623a2893c8ea5a8918ab8796ebe248bc956aba788ba7e84ed420a28.jar"
          4⤵
          • Creates scheduled task(s)
          PID:2680
      • 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\de9c4c756623a2893c8ea5a8918ab8796ebe248bc956aba788ba7e84ed420a28.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:540
        • 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:1236
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4156
        • 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:1548
          • 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:1328
        • 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:224
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:1768
          • 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:3484
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:3668
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1344 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:2392

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              3903daac9bc4a3b7.timestamp

              • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
              • Size 46B
              • SHA256 b9554de201bc559ff78f791eeea2fbefb89a502be219ae23c1c167077b0cd865
              • MD5 SHA1 SHA512

              3903daac9bc4a3b7.timestamp

              • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
              • Size 46B
              • SHA256 7cfde072b891d2ac761e260c5ce4645c28db09cf116f229a9bba99f943596682
              • MD5 SHA1 SHA512

              jna3809530178239694268.dll

              • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna3809530178239694268.dll
              • Size 241KB
              • SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
              • MD5 SHA1 SHA512 SSDEEP

              83aa4cc77f591dfc2374580bbd95f6ba_2397ee06-28fe-4eaa-8777-f7014368c353

              • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3808065738-1666277613-1125846146-1000\83aa4cc77f591dfc2374580bbd95f6ba_2397ee06-28fe-4eaa-8777-f7014368c353
              • Size 45B
              • SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
              • MD5 SHA1 SHA512

              de9c4c756623a2893c8ea5a8918ab8796ebe248bc956aba788ba7e84ed420a28.jar

              • Path C:\Users\Admin\de9c4c756623a2893c8ea5a8918ab8796ebe248bc956aba788ba7e84ed420a28.jar
              • Size 452KB
              • SHA256 de9c4c756623a2893c8ea5a8918ab8796ebe248bc956aba788ba7e84ed420a28
              • 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/540-392-0x0000018992CD0000-0x0000018992CD1000-memory.dmp

              memory/540-352-0x0000018992CD0000-0x0000018992CD1000-memory.dmp

              memory/540-394-0x0000018992CD0000-0x0000018992CD1000-memory.dmp

              memory/1932-254-0x0000014F1E520000-0x0000014F1E521000-memory.dmp

              memory/4060-151-0x0000020414C50000-0x0000020414C51000-memory.dmp

              memory/4060-87-0x0000020414FD0000-0x0000020414FE0000-memory.dmp

              memory/4060-47-0x0000020414FC0000-0x0000020414FD0000-memory.dmp

              memory/4060-46-0x0000020414F00000-0x0000020414F10000-memory.dmp

              memory/4060-44-0x0000020414EF0000-0x0000020414F00000-memory.dmp

              memory/4060-43-0x0000020414FB0000-0x0000020414FC0000-memory.dmp

              memory/4060-42-0x0000020414FA0000-0x0000020414FB0000-memory.dmp

              memory/4060-39-0x0000020414F90000-0x0000020414FA0000-memory.dmp

              memory/4060-38-0x0000020414F80000-0x0000020414F90000-memory.dmp

              memory/4060-29-0x0000020414C70000-0x0000020414EE0000-memory.dmp

              memory/4060-25-0x0000020414F30000-0x0000020414F40000-memory.dmp

              memory/4060-49-0x0000020414F10000-0x0000020414F20000-memory.dmp

              memory/4060-52-0x0000020414F20000-0x0000020414F30000-memory.dmp

              memory/4060-53-0x0000020414FE0000-0x0000020414FF0000-memory.dmp

              memory/4060-60-0x0000020414FF0000-0x0000020415000000-memory.dmp

              memory/4060-59-0x0000020414F30000-0x0000020414F40000-memory.dmp

              memory/4060-64-0x0000020415000000-0x0000020415010000-memory.dmp

              memory/4060-73-0x0000020414F90000-0x0000020414FA0000-memory.dmp

              memory/4060-77-0x0000020414FA0000-0x0000020414FB0000-memory.dmp

              memory/4060-85-0x0000020415070000-0x0000020415080000-memory.dmp

              memory/4060-88-0x0000020415080000-0x0000020415090000-memory.dmp

              memory/4060-149-0x00000204150B0000-0x00000204150C0000-memory.dmp

              memory/4060-84-0x0000020415060000-0x0000020415070000-memory.dmp

              memory/4060-83-0x0000020414FC0000-0x0000020414FD0000-memory.dmp

              memory/4060-81-0x0000020415050000-0x0000020415060000-memory.dmp

              memory/4060-144-0x0000020415170000-0x0000020415180000-memory.dmp

              memory/4060-91-0x0000020414C50000-0x0000020414C51000-memory.dmp

              memory/4060-79-0x0000020415040000-0x0000020415050000-memory.dmp

              memory/4060-74-0x0000020415030000-0x0000020415040000-memory.dmp

              memory/4060-93-0x0000020414FE0000-0x0000020414FF0000-memory.dmp

              memory/4060-95-0x0000020415090000-0x00000204150A0000-memory.dmp

              memory/4060-94-0x0000020414FF0000-0x0000020415000000-memory.dmp

              memory/4060-72-0x0000020414F80000-0x0000020414F90000-memory.dmp

              memory/4060-99-0x00000204150A0000-0x00000204150B0000-memory.dmp

              memory/4060-102-0x0000020415000000-0x0000020415010000-memory.dmp

              memory/4060-107-0x00000204150C0000-0x00000204150D0000-memory.dmp

              memory/4060-109-0x00000204150D0000-0x00000204150E0000-memory.dmp

              memory/4060-108-0x0000020415020000-0x0000020415030000-memory.dmp

              memory/4060-126-0x0000020415050000-0x0000020415060000-memory.dmp

              memory/4060-128-0x0000020414C50000-0x0000020414C51000-memory.dmp

              memory/4060-163-0x0000020414C50000-0x0000020414C51000-memory.dmp

              memory/4060-139-0x0000020415160000-0x0000020415170000-memory.dmp

              memory/4060-138-0x0000020415150000-0x0000020415160000-memory.dmp

              memory/4060-145-0x0000020415180000-0x0000020415190000-memory.dmp

              memory/4060-147-0x0000020415190000-0x00000204151A0000-memory.dmp

              memory/4060-30-0x0000020414F50000-0x0000020414F60000-memory.dmp

              memory/4060-159-0x00000204151C0000-0x00000204151D0000-memory.dmp

              memory/4060-158-0x00000204151B0000-0x00000204151C0000-memory.dmp

              memory/4060-157-0x00000204150C0000-0x00000204150D0000-memory.dmp

              memory/4060-150-0x00000204151A0000-0x00000204151B0000-memory.dmp

              memory/4060-131-0x0000020415060000-0x0000020415070000-memory.dmp

              memory/4060-41-0x0000020414EE0000-0x0000020414EF0000-memory.dmp

              memory/4060-80-0x0000020414FB0000-0x0000020414FC0000-memory.dmp

              memory/4060-143-0x00000204150A0000-0x00000204150B0000-memory.dmp

              memory/4060-142-0x0000020415090000-0x00000204150A0000-memory.dmp

              memory/4060-166-0x00000204151D0000-0x00000204151E0000-memory.dmp

              memory/4060-165-0x00000204150D0000-0x00000204150E0000-memory.dmp

              memory/4060-137-0x0000020415140000-0x0000020415150000-memory.dmp

              memory/4060-136-0x0000020415080000-0x0000020415090000-memory.dmp

              memory/4060-133-0x0000020415130000-0x0000020415140000-memory.dmp

              memory/4060-132-0x0000020415070000-0x0000020415080000-memory.dmp

              memory/4060-127-0x0000020415120000-0x0000020415130000-memory.dmp

              memory/4060-125-0x0000020414C50000-0x0000020414C51000-memory.dmp

              memory/4060-120-0x0000020415100000-0x0000020415110000-memory.dmp

              memory/4060-119-0x0000020415040000-0x0000020415050000-memory.dmp

              memory/4060-118-0x00000204150F0000-0x0000020415100000-memory.dmp

              memory/4060-117-0x0000020415110000-0x0000020415120000-memory.dmp

              memory/4060-113-0x0000020415030000-0x0000020415040000-memory.dmp

              memory/4060-115-0x00000204150E0000-0x00000204150F0000-memory.dmp

              memory/4060-106-0x0000020415010000-0x0000020415020000-memory.dmp

              memory/4060-103-0x00000204150B0000-0x00000204150C0000-memory.dmp

              memory/4060-69-0x0000020414F70000-0x0000020414F80000-memory.dmp

              memory/4060-70-0x0000020415020000-0x0000020415030000-memory.dmp

              memory/4060-68-0x0000020415010000-0x0000020415020000-memory.dmp

              memory/4060-169-0x0000020414C50000-0x0000020414C51000-memory.dmp

              memory/4060-67-0x0000020414F60000-0x0000020414F70000-memory.dmp

              memory/4060-66-0x0000020414F50000-0x0000020414F60000-memory.dmp

              memory/4060-63-0x0000020414F40000-0x0000020414F50000-memory.dmp

              memory/4060-50-0x0000020414FD0000-0x0000020414FE0000-memory.dmp

              memory/4060-20-0x0000020414F10000-0x0000020414F20000-memory.dmp

              memory/4060-19-0x0000020414F00000-0x0000020414F10000-memory.dmp

              memory/4060-173-0x0000020415110000-0x0000020415120000-memory.dmp

              memory/4060-172-0x00000204150E0000-0x00000204150F0000-memory.dmp

              memory/4060-177-0x00000204151E0000-0x00000204151F0000-memory.dmp

              memory/4060-180-0x0000020414F40000-0x0000020414F50000-memory.dmp

              memory/4060-188-0x0000020414F50000-0x0000020414F60000-memory.dmp

              memory/4060-187-0x0000020414C70000-0x0000020414EE0000-memory.dmp

              memory/4060-186-0x0000020414F30000-0x0000020414F40000-memory.dmp

              memory/4060-185-0x0000020414F20000-0x0000020414F30000-memory.dmp

              memory/4060-184-0x0000020414F10000-0x0000020414F20000-memory.dmp

              memory/4060-183-0x0000020414F00000-0x0000020414F10000-memory.dmp

              memory/4060-182-0x0000020414EF0000-0x0000020414F00000-memory.dmp

              memory/4060-181-0x0000020414FB0000-0x0000020414FC0000-memory.dmp

              memory/4060-179-0x0000020414C50000-0x0000020414C51000-memory.dmp

              memory/4060-176-0x0000020415100000-0x0000020415110000-memory.dmp

              memory/4060-34-0x0000020414F70000-0x0000020414F80000-memory.dmp

              memory/4060-175-0x00000204150F0000-0x0000020415100000-memory.dmp

              memory/4060-31-0x0000020414F60000-0x0000020414F70000-memory.dmp

              memory/4060-26-0x0000020414F40000-0x0000020414F50000-memory.dmp

              memory/4060-22-0x0000020414F20000-0x0000020414F30000-memory.dmp

              memory/4060-17-0x0000020414EF0000-0x0000020414F00000-memory.dmp

              memory/4060-14-0x0000020414EE0000-0x0000020414EF0000-memory.dmp

              memory/4060-11-0x0000020414C50000-0x0000020414C51000-memory.dmp

              memory/4060-2-0x0000020414C70000-0x0000020414EE0000-memory.dmp