Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/06/2024, 16:57

General

  • Target
    8b1ebe7e2113d8351d831a276babcea0_JaffaCakes118.jar
  • Size 629KB
  • Sample240601-vgnfpshh22
  • SHA256 071139434ad4b9707acced6db81d31707bb01b6697bbdff4c30c4b17462cf90d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • AdWind

    A Java-based RAT family operated as malware-as-a-service.

  • Class file contains resources related to AdWind 1 IoCs
  • Blocklisted process makes network request 20 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 40 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\8b1ebe7e2113d8351d831a276babcea0_JaffaCakes118.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4736
    • 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:4680
    • C:\Windows\SYSTEM32\wscript.exe
      wscript C:\Users\Admin/ssfhwudrcy.vbs
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4280
      • C:\Windows\System32\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\HTJbbGeMzm.vbs"
        3⤵
        • Blocklisted process makes network request
        • Checks computer location settings
        • Drops startup file
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:620
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe" /c schtasks /create /sc minute /mo 30 /tn Skypee /tr "C:\Users\Admin\AppData\Local\Temp\meee.vbs"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1648
          • C:\Windows\system32\schtasks.exe
            schtasks /create /sc minute /mo 30 /tn Skypee /tr "C:\Users\Admin\AppData\Local\Temp\meee.vbs"
            5⤵
            • Creates scheduled task(s)
            PID:4016
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -version 2> C:\Users\Admin\AppData\Local\Temp\output.txt
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2272
        • C:\Program Files\Java\jre-1.8\bin\javaw.exe
          "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -version
          4⤵
            PID:3124
        • C:\Program Files\Java\jre-1.8\bin\javaw.exe
          "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\ntfsmgr.jar"
          3⤵
          • Drops file in System32 directory
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:312
          • 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\Local\Temp\_0.397023889012019247533195367840199833.class
            4⤵
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:4260
            • C:\Windows\SYSTEM32\cmd.exe
              cmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive6763755716098785050.vbs
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1412
              • C:\Windows\system32\cscript.exe
                cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive6763755716098785050.vbs
                6⤵
                  PID:716
              • C:\Windows\SYSTEM32\cmd.exe
                cmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive2348237123727186031.vbs
                5⤵
                • Suspicious use of WriteProcessMemory
                PID:2696
                • C:\Windows\system32\cscript.exe
                  cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive2348237123727186031.vbs
                  6⤵
                    PID:756
                • C:\Windows\SYSTEM32\xcopy.exe
                  xcopy "C:\Program Files\Java\jre-1.8" "C:\Users\Admin\AppData\Roaming\Oracle\" /e
                  5⤵
                    PID:116
                • C:\Windows\SYSTEM32\cmd.exe
                  cmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive7764393222117294411.vbs
                  4⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3220
                  • C:\Windows\system32\cscript.exe
                    cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive7764393222117294411.vbs
                    5⤵
                      PID:2780
                  • C:\Windows\SYSTEM32\cmd.exe
                    cmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive4657840704231588424.vbs
                    4⤵
                    • Suspicious use of WriteProcessMemory
                    PID:4192
                    • C:\Windows\system32\cscript.exe
                      cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive4657840704231588424.vbs
                      5⤵
                        PID:4404
                    • C:\Windows\SYSTEM32\xcopy.exe
                      xcopy "C:\Program Files\Java\jre-1.8" "C:\Users\Admin\AppData\Roaming\Oracle\" /e
                      4⤵
                        PID:2336
                      • C:\Windows\SYSTEM32\cmd.exe
                        cmd.exe
                        4⤵
                          PID:4092

                  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 afe277f9f05021b959dc934d8edaccf0a24bb02699aa80abfac51509f79bf405
                        • MD5 SHA1 SHA512

                        3903daac9bc4a3b7.timestamp

                        • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
                        • Size 46B
                        • SHA256 b02ec8182f3feacb78d3f161a6cd341a79cc12606e9f0652e5889d6d63d88c2d
                        • MD5 SHA1 SHA512

                        3903daac9bc4a3b7.timestamp

                        • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
                        • Size 46B
                        • SHA256 2445a8b42194fc4cd220221032f257ca90801b52c3095ef0f436510481d3ef1b
                        • MD5 SHA1 SHA512

                        Retrive4657840704231588424.vbs

                        • Path C:\Users\Admin\AppData\Local\Temp\Retrive4657840704231588424.vbs
                        • Size 281B
                        • SHA256 45bfe34aa3ef932f75101246eb53d032f5e7cf6d1f5b4e495334955a255f32e7
                        • MD5 SHA1 SHA512

                        Retrive7764393222117294411.vbs

                        • Path C:\Users\Admin\AppData\Local\Temp\Retrive7764393222117294411.vbs
                        • Size 276B
                        • SHA256 9da575dd2d5b7c1e9bab8b51a16cde457b3371c6dcdb0537356cf1497fa868f6
                        • MD5 SHA1 SHA512

                        _0.397023889012019247533195367840199833.class

                        • Path C:\Users\Admin\AppData\Local\Temp\_0.397023889012019247533195367840199833.class
                        • Size 241KB
                        • SHA256 97d585b6aff62fb4e43e7e6a5f816dcd7a14be11a88b109a9ba9e8cd4c456eb9
                        • MD5 SHA1 SHA512 SSDEEP

                        output.txt

                        • Path C:\Users\Admin\AppData\Local\Temp\output.txt
                        • Size 147B
                        • SHA256 4ebfda517657bcc9f2b2e3c3cd13e58e9adef320c0ca1a8ac9aee888d4e1ef8e
                        • MD5 SHA1 SHA512

                        HTJbbGeMzm.vbs

                        • Path C:\Users\Admin\AppData\Roaming\HTJbbGeMzm.vbs
                        • Size 21KB
                        • SHA256 652493711e06fc5935446d9b15750db2cca32ceba31a5577499863638d8cf8ce
                        • MD5 SHA1 SHA512 SSDEEP

                        83aa4cc77f591dfc2374580bbd95f6ba_39fbc0df-d496-4ae0-b1d7-bde60e245d90

                        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3558294865-3673844354-2255444939-1000\83aa4cc77f591dfc2374580bbd95f6ba_39fbc0df-d496-4ae0-b1d7-bde60e245d90
                        • Size 45B
                        • SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
                        • MD5 SHA1 SHA512

                        msvcp140.dll

                        • Path C:\Users\Admin\AppData\Roaming\Oracle\bin\plugin2\msvcp140.dll
                        • Size 558KB
                        • SHA256 a88b8c1c8f27bf90fe960e0e8bd56984ad48167071af92d96ec1051f89f827fb
                        • MD5 SHA1 SHA512 SSDEEP

                        vcruntime140.dll

                        • Path C:\Users\Admin\AppData\Roaming\Oracle\bin\plugin2\vcruntime140.dll
                        • Size 95KB
                        • SHA256 475ab98b7722e965bd38c8fa6ed23502309582ccf294ff1061cb290c7988f0d1
                        • MD5 SHA1 SHA512 SSDEEP

                        vcruntime140_1.dll

                        • Path C:\Users\Admin\AppData\Roaming\Oracle\bin\plugin2\vcruntime140_1.dll
                        • Size 36KB
                        • SHA256 0579d460ea1f7e8a815fa55a8821a5ff489c8097f051765e9beaf25d8d0f27d6
                        • MD5 SHA1 SHA512 SSDEEP

                        messages_zh_TW.properties

                        • Path C:\Users\Admin\AppData\Roaming\Oracle\lib\deploy\messages_zh_TW.properties
                        • Size 3KB
                        • SHA256 ff4a3a92bc92cb08d2c32c435810440fd264edd63e56efa39430e0240c835620
                        • MD5 SHA1 SHA512

                        win32_CopyNoDrop32x32.gif

                        • Path C:\Users\Admin\AppData\Roaming\Oracle\lib\images\cursors\win32_CopyNoDrop32x32.gif
                        • Size 153B
                        • SHA256 1a1d3079d49583837662b84e11d8c0870698511d9110e710eb8e7eb20df7ae3b
                        • MD5 SHA1 SHA512

                        US_export_policy.jar

                        • Path C:\Users\Admin\AppData\Roaming\Oracle\lib\security\policy\unlimited\US_export_policy.jar
                        • Size 7KB
                        • SHA256 84e035372ca8979bb4a387428a74942ffc7248a0e61988b7033b5b266cd187c8
                        • MD5 SHA1 SHA512 SSDEEP

                        ntfsmgr.jar

                        • Path C:\Users\Admin\AppData\Roaming\ntfsmgr.jar
                        • Size 473KB
                        • SHA256 9eaf0bb4fd5eb9860d3afd3f1561a9294e9276cd108a87df3dea98be288a2b50
                        • MD5 SHA1 SHA512 SSDEEP

                        ssfhwudrcy.vbs

                        • Path C:\Users\Admin\ssfhwudrcy.vbs
                        • Size 919KB
                        • SHA256 3dd8110a62a75dcd3a1356873bb0f4d8cb1aa8ab7b852f34ac09b58e689485ea
                        • MD5 SHA1 SHA512 SSDEEP

                        memory/312-84-0x0000023143B90000-0x0000023143B91000-memory.dmp

                        memory/312-997-0x0000023143B90000-0x0000023143B91000-memory.dmp

                        memory/312-996-0x0000023143B90000-0x0000023143B91000-memory.dmp

                        memory/312-407-0x0000023143B90000-0x0000023143B91000-memory.dmp

                        memory/312-985-0x0000023143B90000-0x0000023143B91000-memory.dmp

                        memory/312-980-0x0000023143B90000-0x0000023143B91000-memory.dmp

                        memory/3124-33-0x000001811DD80000-0x000001811DD81000-memory.dmp

                        memory/4260-552-0x0000026E9F0F0000-0x0000026E9F0F1000-memory.dmp

                        memory/4260-100-0x0000026E9F0F0000-0x0000026E9F0F1000-memory.dmp

                        memory/4260-87-0x0000026E9F0F0000-0x0000026E9F0F1000-memory.dmp

                        memory/4736-2-0x0000018207180000-0x00000182073F0000-memory.dmp

                        memory/4736-14-0x0000018205890000-0x0000018205891000-memory.dmp

                        memory/4736-15-0x0000018207180000-0x00000182073F0000-memory.dmp