Analysis

  • max time kernel
    145s
  • max time network
    147s
  • 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
    838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar
  • Size 452KB
  • Sample240607-j4eljadb2v
  • SHA256 838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667
  • 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\838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5088
    • 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:2724
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:4580
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2280
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar"
          4⤵
          • Creates scheduled task(s)
          PID:3176
      • 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\838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4560
        • 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:4852
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2904
        • 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:2760
          • 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:4844
        • 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:692
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:1856
          • 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:1208
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:5072
      • 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 --field-trial-handle=4212,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=4004 /prefetch:8
        1⤵
          PID:800

        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 50fe2db5c618b7cd3516c01ef5b328ddc4ac87617c6725de2c9375086d2bf4ea
              • MD5 SHA1 SHA512

              3903daac9bc4a3b7.timestamp

              • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
              • Size 46B
              • SHA256 72a1c255463d70b55fe7b5e8ef0339f3ae2e215bd5ec6313e93696a3109e5aad
              • MD5 SHA1 SHA512

              838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar

              • Path C:\Users\Admin\838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667.jar
              • Size 452KB
              • SHA256 838feba9c3f59776a04d380c1f94f7d93a84e8256ce07d94482528d373470667
              • MD5 SHA1 SHA512 SSDEEP

              jna9045907790933514206.dll

              • Path C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna9045907790933514206.dll
              • Size 241KB
              • SHA256 a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a
              • MD5 SHA1 SHA512 SSDEEP

              83aa4cc77f591dfc2374580bbd95f6ba_d2547453-e731-4fdf-8f92-95f955a44aca

              • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1181767204-2009306918-3718769404-1000\83aa4cc77f591dfc2374580bbd95f6ba_d2547453-e731-4fdf-8f92-95f955a44aca
              • 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/4560-358-0x000001C7BE180000-0x000001C7BE181000-memory.dmp

              memory/4580-278-0x000002FA6F390000-0x000002FA6F391000-memory.dmp

              memory/5088-103-0x0000023F4AC50000-0x0000023F4AC60000-memory.dmp

              memory/5088-185-0x0000023F4ACE0000-0x0000023F4ACF0000-memory.dmp

              memory/5088-27-0x0000023F4AAD0000-0x0000023F4AAE0000-memory.dmp

              memory/5088-26-0x0000023F4AAC0000-0x0000023F4AAD0000-memory.dmp

              memory/5088-31-0x0000023F4AAF0000-0x0000023F4AB00000-memory.dmp

              memory/5088-34-0x0000023F4AB10000-0x0000023F4AB20000-memory.dmp

              memory/5088-33-0x0000023F4AB00000-0x0000023F4AB10000-memory.dmp

              memory/5088-36-0x0000023F4AB20000-0x0000023F4AB30000-memory.dmp

              memory/5088-40-0x0000023F4AB40000-0x0000023F4AB50000-memory.dmp

              memory/5088-39-0x0000023F4AB30000-0x0000023F4AB40000-memory.dmp

              memory/5088-43-0x0000023F4AB50000-0x0000023F4AB60000-memory.dmp

              memory/5088-45-0x0000023F4A800000-0x0000023F4AA70000-memory.dmp

              memory/5088-47-0x0000023F4AB70000-0x0000023F4AB80000-memory.dmp

              memory/5088-46-0x0000023F4AB60000-0x0000023F4AB70000-memory.dmp

              memory/5088-50-0x0000023F4AB80000-0x0000023F4AB90000-memory.dmp

              memory/5088-49-0x0000023F4AA70000-0x0000023F4AA80000-memory.dmp

              memory/5088-57-0x0000023F4AA80000-0x0000023F4AA90000-memory.dmp

              memory/5088-59-0x0000023F4ABA0000-0x0000023F4ABB0000-memory.dmp

              memory/5088-58-0x0000023F4AB90000-0x0000023F4ABA0000-memory.dmp

              memory/5088-62-0x0000023F4AA90000-0x0000023F4AAA0000-memory.dmp

              memory/5088-66-0x0000023F4ABC0000-0x0000023F4ABD0000-memory.dmp

              memory/5088-65-0x0000023F4ABB0000-0x0000023F4ABC0000-memory.dmp

              memory/5088-64-0x0000023F4AAB0000-0x0000023F4AAC0000-memory.dmp

              memory/5088-63-0x0000023F4AAA0000-0x0000023F4AAB0000-memory.dmp

              memory/5088-71-0x0000023F4ABD0000-0x0000023F4ABE0000-memory.dmp

              memory/5088-70-0x0000023F4AAE0000-0x0000023F4AAF0000-memory.dmp

              memory/5088-69-0x0000023F4AAD0000-0x0000023F4AAE0000-memory.dmp

              memory/5088-68-0x0000023F4AAC0000-0x0000023F4AAD0000-memory.dmp

              memory/5088-72-0x0000023F48F30000-0x0000023F48F31000-memory.dmp

              memory/5088-76-0x0000023F4ABE0000-0x0000023F4ABF0000-memory.dmp

              memory/5088-74-0x0000023F4AAF0000-0x0000023F4AB00000-memory.dmp

              memory/5088-80-0x0000023F4ABF0000-0x0000023F4AC00000-memory.dmp

              memory/5088-79-0x0000023F4AB10000-0x0000023F4AB20000-memory.dmp

              memory/5088-82-0x0000023F4AB20000-0x0000023F4AB30000-memory.dmp

              memory/5088-84-0x0000023F4AC10000-0x0000023F4AC20000-memory.dmp

              memory/5088-83-0x0000023F4AC00000-0x0000023F4AC10000-memory.dmp

              memory/5088-78-0x0000023F4AB00000-0x0000023F4AB10000-memory.dmp

              memory/5088-87-0x0000023F4AB40000-0x0000023F4AB50000-memory.dmp

              memory/5088-86-0x0000023F4AB30000-0x0000023F4AB40000-memory.dmp

              memory/5088-88-0x0000023F4AC20000-0x0000023F4AC30000-memory.dmp

              memory/5088-92-0x0000023F4AB50000-0x0000023F4AB60000-memory.dmp

              memory/5088-118-0x0000023F4ACA0000-0x0000023F4ACB0000-memory.dmp

              memory/5088-95-0x0000023F48F30000-0x0000023F48F31000-memory.dmp

              memory/5088-98-0x0000023F4AC40000-0x0000023F4AC50000-memory.dmp

              memory/5088-97-0x0000023F4AB70000-0x0000023F4AB80000-memory.dmp

              memory/5088-96-0x0000023F4AB60000-0x0000023F4AB70000-memory.dmp

              memory/5088-102-0x0000023F4AB80000-0x0000023F4AB90000-memory.dmp

              memory/5088-20-0x0000023F4AA90000-0x0000023F4AAA0000-memory.dmp

              memory/5088-111-0x0000023F4AC80000-0x0000023F4AC90000-memory.dmp

              memory/5088-121-0x0000023F48F30000-0x0000023F48F31000-memory.dmp

              memory/5088-125-0x0000023F4ACD0000-0x0000023F4ACE0000-memory.dmp

              memory/5088-124-0x0000023F4ACC0000-0x0000023F4ACD0000-memory.dmp

              memory/5088-28-0x0000023F4AAE0000-0x0000023F4AAF0000-memory.dmp

              memory/5088-123-0x0000023F4ACB0000-0x0000023F4ACC0000-memory.dmp

              memory/5088-93-0x0000023F4AC30000-0x0000023F4AC40000-memory.dmp

              memory/5088-117-0x0000023F4AC90000-0x0000023F4ACA0000-memory.dmp

              memory/5088-115-0x0000023F4ABC0000-0x0000023F4ABD0000-memory.dmp

              memory/5088-114-0x0000023F4ABB0000-0x0000023F4ABC0000-memory.dmp

              memory/5088-110-0x0000023F4AC70000-0x0000023F4AC80000-memory.dmp

              memory/5088-109-0x0000023F4AC60000-0x0000023F4AC70000-memory.dmp

              memory/5088-108-0x0000023F4ABA0000-0x0000023F4ABB0000-memory.dmp

              memory/5088-107-0x0000023F4AB90000-0x0000023F4ABA0000-memory.dmp

              memory/5088-129-0x0000023F48F30000-0x0000023F48F31000-memory.dmp

              memory/5088-133-0x0000023F4ABE0000-0x0000023F4ABF0000-memory.dmp

              memory/5088-134-0x0000023F4ACE0000-0x0000023F4ACF0000-memory.dmp

              memory/5088-132-0x0000023F48F30000-0x0000023F48F31000-memory.dmp

              memory/5088-137-0x0000023F4ACF0000-0x0000023F4AD00000-memory.dmp

              memory/5088-136-0x0000023F4ABF0000-0x0000023F4AC00000-memory.dmp

              memory/5088-139-0x0000023F4AC00000-0x0000023F4AC10000-memory.dmp

              memory/5088-141-0x0000023F4AD00000-0x0000023F4AD10000-memory.dmp

              memory/5088-140-0x0000023F4AC10000-0x0000023F4AC20000-memory.dmp

              memory/5088-143-0x0000023F4AC20000-0x0000023F4AC30000-memory.dmp

              memory/5088-144-0x0000023F4AD10000-0x0000023F4AD20000-memory.dmp

              memory/5088-146-0x0000023F4AC30000-0x0000023F4AC40000-memory.dmp

              memory/5088-147-0x0000023F4AD20000-0x0000023F4AD30000-memory.dmp

              memory/5088-148-0x0000023F48F30000-0x0000023F48F31000-memory.dmp

              memory/5088-151-0x0000023F4AC40000-0x0000023F4AC50000-memory.dmp

              memory/5088-152-0x0000023F4AD30000-0x0000023F4AD40000-memory.dmp

              memory/5088-154-0x0000023F4AC50000-0x0000023F4AC60000-memory.dmp

              memory/5088-155-0x0000023F4AD40000-0x0000023F4AD50000-memory.dmp

              memory/5088-157-0x0000023F48F30000-0x0000023F48F31000-memory.dmp

              memory/5088-161-0x0000023F4AC60000-0x0000023F4AC70000-memory.dmp

              memory/5088-164-0x0000023F4AD50000-0x0000023F4AD60000-memory.dmp

              memory/5088-163-0x0000023F4AC80000-0x0000023F4AC90000-memory.dmp

              memory/5088-162-0x0000023F4AC70000-0x0000023F4AC80000-memory.dmp

              memory/5088-166-0x0000023F4AC90000-0x0000023F4ACA0000-memory.dmp

              memory/5088-167-0x0000023F4ACA0000-0x0000023F4ACB0000-memory.dmp

              memory/5088-168-0x0000023F4AD60000-0x0000023F4AD70000-memory.dmp

              memory/5088-177-0x0000023F4AD70000-0x0000023F4AD80000-memory.dmp

              memory/5088-176-0x0000023F4ACD0000-0x0000023F4ACE0000-memory.dmp

              memory/5088-175-0x0000023F4ACC0000-0x0000023F4ACD0000-memory.dmp

              memory/5088-174-0x0000023F4ACB0000-0x0000023F4ACC0000-memory.dmp

              memory/5088-178-0x0000023F48F30000-0x0000023F48F31000-memory.dmp

              memory/5088-122-0x0000023F4ABD0000-0x0000023F4ABE0000-memory.dmp

              memory/5088-186-0x0000023F4AD80000-0x0000023F4AD90000-memory.dmp

              memory/5088-188-0x0000023F4A800000-0x0000023F4AA70000-memory.dmp

              memory/5088-22-0x0000023F4AAB0000-0x0000023F4AAC0000-memory.dmp

              memory/5088-21-0x0000023F4AAA0000-0x0000023F4AAB0000-memory.dmp

              memory/5088-16-0x0000023F4AA80000-0x0000023F4AA90000-memory.dmp

              memory/5088-14-0x0000023F4AA70000-0x0000023F4AA80000-memory.dmp

              memory/5088-12-0x0000023F48F30000-0x0000023F48F31000-memory.dmp

              memory/5088-2-0x0000023F4A800000-0x0000023F4AA70000-memory.dmp

              memory/5088-189-0x0000023F4AA70000-0x0000023F4AA80000-memory.dmp

              memory/5088-191-0x0000023F4AA90000-0x0000023F4AAA0000-memory.dmp

              memory/5088-190-0x0000023F4AA80000-0x0000023F4AA90000-memory.dmp