Analysis

  • max time kernel
    30s
  • max time network
    64s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/09/2022, 07:57

General

  • Target
    Records-TODAY-XrupywHKMp_AccRecords-TODAY.jar
  • Size 614KB
  • Sample220922-js9mjaecfk
  • SHA256 890361d45c787bbc8add4fcf0af3cfa05eeff5eb7469db9f260e9e19710d693d
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\ProgramData\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\Records-TODAY-XrupywHKMp_AccRecords-TODAY.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4772
    • C:\Windows\SYSTEM32\wscript.exe
      wscript C:\Users\Admin\uiycfwtfza.js
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4124
      • C:\Windows\System32\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\oKaiMIpJcF.js"
        3⤵
          PID:4300
        • C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
          "C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\hdkmovgs.txt"
          3⤵
            PID:3340
            • C:\Program Files\Java\jre1.8.0_66\bin\java.exe
              "C:\Program Files\Java\jre1.8.0_66\bin\java.exe" -jar C:\Users\Admin\AppData\Local\Temp\_0.37347711247580747199496433508202152.class
              4⤵
                PID:4028
                • C:\Windows\SYSTEM32\cmd.exe
                  cmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive8164507331004910708.vbs
                  5⤵
                    PID:4844
                    • C:\Windows\system32\cscript.exe
                      cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive8164507331004910708.vbs
                      6⤵
                        PID:2968
                    • C:\Windows\SYSTEM32\cmd.exe
                      cmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive758505856353628500.vbs
                      5⤵
                        PID:4012
                        • C:\Windows\system32\cscript.exe
                          cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive758505856353628500.vbs
                          6⤵
                            PID:5016
                        • C:\Windows\SYSTEM32\xcopy.exe
                          xcopy "C:\Program Files\Java\jre1.8.0_66" "C:\Users\Admin\AppData\Roaming\Oracle\" /e
                          5⤵
                            PID:1524
                        • C:\Windows\SYSTEM32\cmd.exe
                          cmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive1319556694481891182.vbs
                          4⤵
                            PID:2364
                            • C:\Windows\system32\cscript.exe
                              cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive1319556694481891182.vbs
                              5⤵
                                PID:1984
                            • C:\Windows\SYSTEM32\cmd.exe
                              cmd.exe /C cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive3550843395460824288.vbs
                              4⤵
                                PID:4512
                                • C:\Windows\system32\cscript.exe
                                  cscript.exe C:\Users\Admin\AppData\Local\Temp\Retrive3550843395460824288.vbs
                                  5⤵
                                    PID:5092
                                • C:\Windows\SYSTEM32\xcopy.exe
                                  xcopy "C:\Program Files\Java\jre1.8.0_66" "C:\Users\Admin\AppData\Roaming\Oracle\" /e
                                  4⤵
                                    PID:4908

                            Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

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                                  Downloads

                                  90737d32e3aba4b.timestamp

                                  • Path C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp
                                  • Size 50B
                                  • SHA256 885f5d2f6e50304413821d6a113bb3cd238775d68bd0b5ba7f03a68142673e2a
                                  • MD5 SHA1 SHA512

                                  90737d32e3aba4b.timestamp

                                  • Path C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp
                                  • Size 50B
                                  • SHA256 120da4e51c216c8660db217e5648b1d6365b4ec974cf11823284bb2375609ef2
                                  • MD5 SHA1 SHA512

                                  Retrive1319556694481891182.vbs

                                  • Path C:\Users\Admin\AppData\Local\Temp\Retrive1319556694481891182.vbs
                                  • Size 276B
                                  • SHA256 9da575dd2d5b7c1e9bab8b51a16cde457b3371c6dcdb0537356cf1497fa868f6
                                  • MD5 SHA1 SHA512

                                  Retrive3550843395460824288.vbs

                                  • Path C:\Users\Admin\AppData\Local\Temp\Retrive3550843395460824288.vbs
                                  • Size 281B
                                  • SHA256 45bfe34aa3ef932f75101246eb53d032f5e7cf6d1f5b4e495334955a255f32e7
                                  • MD5 SHA1 SHA512

                                  Retrive758505856353628500.vbs

                                  • Path C:\Users\Admin\AppData\Local\Temp\Retrive758505856353628500.vbs
                                  • Size 281B
                                  • SHA256 45bfe34aa3ef932f75101246eb53d032f5e7cf6d1f5b4e495334955a255f32e7
                                  • MD5 SHA1 SHA512

                                  Retrive8164507331004910708.vbs

                                  • Path C:\Users\Admin\AppData\Local\Temp\Retrive8164507331004910708.vbs
                                  • Size 276B
                                  • SHA256 9da575dd2d5b7c1e9bab8b51a16cde457b3371c6dcdb0537356cf1497fa868f6
                                  • MD5 SHA1 SHA512

                                  _0.37347711247580747199496433508202152.class

                                  • Path C:\Users\Admin\AppData\Local\Temp\_0.37347711247580747199496433508202152.class
                                  • Size 241KB
                                  • SHA256 97d585b6aff62fb4e43e7e6a5f816dcd7a14be11a88b109a9ba9e8cd4c456eb9
                                  • MD5 SHA1 SHA512 SSDEEP

                                  83aa4cc77f591dfc2374580bbd95f6ba_4b401a7f-b7c1-4c1c-a9cf-2b1aa260545d

                                  • Path C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2295526160-1155304984-640977766-1000\83aa4cc77f591dfc2374580bbd95f6ba_4b401a7f-b7c1-4c1c-a9cf-2b1aa260545d
                                  • Size 45B
                                  • SHA256 11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238
                                  • MD5 SHA1 SHA512

                                  hdkmovgs.txt

                                  • Path C:\Users\Admin\AppData\Roaming\hdkmovgs.txt
                                  • Size 473KB
                                  • SHA256 1d30d57917c1c4a2b1ae256a5b747ca1917d7a96956c1afe13a21a7f2fae6d11
                                  • MD5 SHA1 SHA512 SSDEEP

                                  oKaiMIpJcF.js

                                  • Path C:\Users\Admin\AppData\Roaming\oKaiMIpJcF.js
                                  • Size 5KB
                                  • SHA256 01c17f10a45f4fc2d6c9f815004ee8774a257acbf23fcf516658be92dd330209
                                  • MD5 SHA1 SHA512 SSDEEP

                                  uiycfwtfza.js

                                  • Path C:\Users\Admin\uiycfwtfza.js
                                  • Size 888KB
                                  • SHA256 c873455fa0418e20440da4f179cd0a27469fa59d9e7278ba3dfbacf1df6f1e05
                                  • MD5 SHA1 SHA512 SSDEEP

                                  memory/3340-180-0x00000000030D0000-0x00000000040D0000-memory.dmp

                                  memory/3340-159-0x00000000030D0000-0x00000000040D0000-memory.dmp

                                  memory/3340-192-0x00000000030D0000-0x00000000040D0000-memory.dmp

                                  memory/4028-171-0x0000000003060000-0x0000000004060000-memory.dmp

                                  memory/4028-202-0x0000000003060000-0x0000000004060000-memory.dmp

                                  memory/4028-198-0x0000000003060000-0x0000000004060000-memory.dmp

                                  memory/4772-136-0x00000000027F0000-0x00000000037F0000-memory.dmp