Analysis

  • max time kernel
    2s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-01-2024 05:55

General

  • Target

    2024-01-11_183e40a711af9f2e798a430e2809a1d0_ryuk.exe

  • Size

    2.1MB

  • MD5

    183e40a711af9f2e798a430e2809a1d0

  • SHA1

    2efa036f6e7f6e19bc7b162d9cbb40b150944b1b

  • SHA256

    c70cbd05d70131009292d88c51242e738829c00b7e9579e2c68ff504fa0f9983

  • SHA512

    b4c907320d8db41d0449a52f52835eeeb325005ede9a53babd0745c8701bd8e3a509d958f675771b16ac714418b15b5ca2a776227c409092cbd9c6d1fbf10749

  • SSDEEP

    49152:+XWtcDcoUYXPtSjeJgEjTmucjzaB0zj0yjoB2:+SFYXPwtEjEj+B2Yyjl

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 7 IoCs
  • Drops file in System32 directory 8 IoCs
  • Drops file in Program Files directory 10 IoCs
  • Modifies data under HKEY_USERS 5 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-11_183e40a711af9f2e798a430e2809a1d0_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-11_183e40a711af9f2e798a430e2809a1d0_ryuk.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    PID:880
  • C:\Windows\System32\alg.exe
    C:\Windows\System32\alg.exe
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Drops file in Program Files directory
    PID:4380
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
    1⤵
      PID:220
    • \??\c:\Program Files\Common Files\Microsoft Shared\Source Engine\OSE.EXE
      "c:\Program Files\Common Files\Microsoft Shared\Source Engine\OSE.EXE"
      1⤵
      • Executes dropped EXE
      PID:1208
    • C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe
      "C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe"
      1⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:3696
    • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\elevation_service.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\elevation_service.exe"
      1⤵
      • Executes dropped EXE
      PID:1980
    • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
      "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
      1⤵
      • Executes dropped EXE
      PID:1504
    • C:\Windows\system32\fxssvc.exe
      C:\Windows\system32\fxssvc.exe
      1⤵
      • Executes dropped EXE
      • Modifies data under HKEY_USERS
      • Suspicious use of AdjustPrivilegeToken
      PID:3524
    • C:\Windows\system32\DiagSvcs\DiagnosticsHub.StandardCollector.Service.exe
      C:\Windows\system32\DiagSvcs\DiagnosticsHub.StandardCollector.Service.exe
      1⤵
      • Executes dropped EXE
      PID:4384

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\Program Files\Java\jdk-1.8\bin\javapackager.exe

      Filesize

      1.1MB

      MD5

      1d183e65841d6ad48867954a22acf4b3

      SHA1

      06df6c7419c2787f04f0a2b1169b8936c1a68c85

      SHA256

      24506453eaa087c633efa317224c502f321d3770b93a1a377f270c11011ac7d0

      SHA512

      6f31c3db7d26f36cfb95ea384379cf3b06eec2382a1b7ece86e99d7c13e034d46cfa8b18cfcb425a48336e2204428bfd505307924c50fed880e58f6dc65d18a9

    • C:\Program Files\Java\jdk-1.8\bin\javaw.exe

      Filesize

      1024KB

      MD5

      86f49faf5ef32d94c06b888268d5c7c6

      SHA1

      01580e371256e15b4b98eeab9249492d2334e952

      SHA256

      2138ace2c42f9863e574f2e6af49cab293f3c38a33b3ea62b507fede27350b8d

      SHA512

      cebb2bdcba029bf112005fa8a84185888f8888bebd8f7e18866b7efc68aad0807e1e86e75eb98e636587e3edb7a4f071fbd8769e6d384ff01572cd5a370cf040

    • C:\Program Files\Java\jdk-1.8\bin\javaws.exe

      Filesize

      944KB

      MD5

      1774912d56b615af4f21baca0eda4f63

      SHA1

      e4b6b41fc4ec2848ad274c357dd14010f7085aca

      SHA256

      4d624e46328b6f20b25267ec4b314271377fd78cc468d24161938ba8b37656df

      SHA512

      d4c739563df0f33cf474685389380c6d6a54a31a179e8c09a7f5263171eabc06de28a3961b9d11217ae3af3f79b1089f51877a75c506245b3c7bc0758478a175

    • C:\Program Files\Java\jdk-1.8\bin\jcmd.exe

      Filesize

      998KB

      MD5

      ff6ccb9e65a3087401591f329a743806

      SHA1

      3c42554bb23480290d70f8283a556c904e90bcf7

      SHA256

      3809048f58c6861a0dc94bcb7d4ca024740d59cbda23fa26e9e17a72cd4c8297

      SHA512

      33dc7af9b5b94659707c185f2d82117f61b0547bb91aa39ba6f0bc9229e8c2b2961089892fe48f587071392fcee80a6ffc5437ccd8d3b12a96f6d2ea0f2f91c1

    • C:\Program Files\Java\jdk-1.8\bin\jconsole.exe

      Filesize

      1.2MB

      MD5

      8c76b93a88af1f876904322a8bfae28f

      SHA1

      bed186686066c213b75507cca5ea28f9c9ee10d7

      SHA256

      7fd64da8f5aaa89da2cca599de84c07a13313c821727cb33e1d4d23b38935db3

      SHA512

      ce561d1b42640beed190d101820c7c1e32fd8bc76e6d79da7209e0096311956c2b9b5760320a83871e7d1f67f026b88045b8ae139d414354340027112953f2f1

    • C:\Program Files\Java\jdk-1.8\bin\jdb.exe

      Filesize

      1.0MB

      MD5

      bdf9a7f3905c8371a2b8152974891c38

      SHA1

      88a8af53ac2387f5facf16cd9c810994d49d5894

      SHA256

      000d3512c7717fa6bec11617da5c3a97595605d762631b2488a22ca8e32b4669

      SHA512

      dcfb4cb801c7f75bc20405d3ce93a0442385b0ca23416497f0193f662d271bfdd30265f8134a21572f88abd89265683065d010560a6eb74f440f177249ac4cc0

    • C:\Program Files\Java\jdk-1.8\bin\jdeps.exe

      Filesize

      1.1MB

      MD5

      fcb3e5842d906d7f91803767acd6f177

      SHA1

      85a08b16bfc0b344eb20860e9dcf2a73a9a00705

      SHA256

      59bf3b5c8b1c730f54aa99522b41b92fedbf5313a52d8dc9d02360057146dc17

      SHA512

      0b72c49aaca3d3e4a8ea4ca9012975d7c68005545c89e5194b2a410590bb2fbc1d35e8b5a4f085e6c06af3dc4929a6b1e963316eb30e1b45649ef7a299d2c142

    • C:\Program Files\Java\jdk-1.8\bin\jhat.exe

      Filesize

      832KB

      MD5

      8a9b86a3ebd3ec90baa2af4ca2b7f393

      SHA1

      240adc9201c4f2af539c600c5d83b54b42296080

      SHA256

      fbe8084b6a94c4b3a7245611fd6eee4286b10928155bdf84f65b254d91449659

      SHA512

      ab45ed77ca11b5552631b5ed0aafbdfb3972e1c42c3b37ef232caa3955b635a8d38c5642c7c6a4f164efd2628c03aa22dfc3f2cfef14957f3389bbec6adb53a6

    • C:\Program Files\Java\jdk-1.8\bin\jinfo.exe

      Filesize

      1.1MB

      MD5

      3a2ed17aff0687db042b168cd5e0ecbf

      SHA1

      8683347a005539d59707ffb9987474c51a779130

      SHA256

      c3de2f7f7634035e5752ce56e054f352476e23ca0a88019842cd17e9c0ff7a0d

      SHA512

      f9ee490b2f6a55e5b285fc16ac37a2ea70b85d4a2d13d85db207ef81a481570e42949f3d7bb4e2357aba50532b44cd88ef0538a94817bc9ae40de989f4074836

    • C:\Program Files\Java\jdk-1.8\bin\jjs.exe

      Filesize

      976KB

      MD5

      e6b6e1dbfe46b0063c48f4342693042a

      SHA1

      fd815fe14dd2af7f02a6a0e00794de275281cd7c

      SHA256

      617d686604ce306948b50c380a70e60db3e290f737cdb0a13a0d4ea1c3234367

      SHA512

      01934822d9f495f90267996be760b638e61f5f5ee7e3685056926527b5d7c0e6e5cff74af04194506bc4edfe99610ec029c83bbd417e7a34997dfcf22b39acb1

    • C:\Program Files\Java\jdk-1.8\bin\jmap.exe

      Filesize

      976KB

      MD5

      98a31808cddb32875a5cb6fd34789235

      SHA1

      16c773841d45b870826ca3afc06b3d76ddbfd447

      SHA256

      492f9c538aba21f9c0298acdd8d553d32d6a09f207b61c79f53e67e862bce0e1

      SHA512

      92dd9fc8a6fb0d7be991f4588b44106d767d3960c376bd7e78207e5250ea280f6a4ebd77f0b183376419e68169c3df043183b5f9415678e20c006e22bf829397

    • C:\Program Files\Java\jdk-1.8\bin\jps.exe

      Filesize

      976KB

      MD5

      9c7970925ec58c45486fe5d908c7081c

      SHA1

      43cbd487ef237755dd6ba681c4963f46d004a5cf

      SHA256

      d006f1f4c12cca9422b6aa0b9fd24a8422e5017c5c35f69ba656af805c2fcaa9

      SHA512

      7751c7bd567b3dc15fe0a0d6a36c39ba514a90c04124f2bae8a4d595939d7d0c46988c896206567215fd3f7276a3cdf2e11c321a5269837b5340f52974fe3616

    • C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe

      Filesize

      1.0MB

      MD5

      79c487e4df1710bb27104b8400adbde7

      SHA1

      46a0a86559835d14a080e2cb0bccbd077f470329

      SHA256

      5c85be25e5c190e861343e94b91d0b1772608acb942c4d41d5a756f2896dba66

      SHA512

      db18b45c1dfe00a8618c114d73efbabf501925314e2b301cd1b9185570008990fbd18eb4cab2bbf43763171581115b5e4dd422a9f39ae03d2a30407145a7e676

    • C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe

      Filesize

      720KB

      MD5

      0e7d364d06a3384ede3ea4fba03394e6

      SHA1

      9cd8e30d9d98e965ff491d2275868de191a56f91

      SHA256

      3b7a2844a47ed7038ffa0f5e561ce65a9bef66d8a22e6c47bc0b8d8af68aa182

      SHA512

      c05564d0d81f991df600a8021ca2b4c140952e0c3db909be606575bd8ebcbfc4f0a0b0acb30e79835be107ae1bec8eee6b3b4bd433dd1dc2d2bffcb7babff97b

    • C:\Program Files\Java\jdk-1.8\bin\jstack.exe

      Filesize

      1.1MB

      MD5

      7ae85cb78d1b1aad057eb0c1d2ef04f0

      SHA1

      cab8f80d57eedafa38fdc6a909eecf2bc7ce1dde

      SHA256

      94b42238762019bcca22abac8aea2f841066c1fd6262ef16cd6fa5ff28ac3649

      SHA512

      c5fa8602278cb78a2e7cc3b86364764effdae1cc18fca25c4bee89901df7553eed7bf26f86cde4946d389bcc60c3430ae0e93afa95c943d2ddcf7877dac6ff0d

    • C:\Program Files\Java\jdk-1.8\bin\jstat.exe

      Filesize

      1.1MB

      MD5

      43ed1ce8381d0ed1aef53fd34eda23a1

      SHA1

      b2f325745470acd91fa8ceddd902508b1b671320

      SHA256

      2f45a7a452cb18551cfbdd7b40a81d3659da20bbf9ffdf53740207570bb083d4

      SHA512

      da26ea2e8cecb51a76c0aa1c57b765521aa676a4e3663f79fe187efb4f9212ab33475a127f6abe13bd7ff995741496363bbfd36b86ac478e2347aee963256524

    • C:\Program Files\Java\jdk-1.8\bin\jstatd.exe

      Filesize

      848KB

      MD5

      4fcfa143f50d84d48ff456b80be9b41d

      SHA1

      8e1ffa16ad55fd90b3bbb42a72615d90f980453b

      SHA256

      2b0d7939bf058382af1b3ae7437084b889510186ed8cbde41a1786ec5f656095

      SHA512

      4b2029a0a54650eeddd005223b1e2f1916035a316eb14f162c4544dada614fb0a6925ae8e0b0ee3ee950ff2b9dac9106b922cfb3ec2c491a7c40004a5198fe1e

    • C:\Program Files\Java\jdk-1.8\bin\keytool.exe

      Filesize

      1.0MB

      MD5

      0e1445b71357727a735ffdd2a901afde

      SHA1

      daac3393fa126044a328cab921e2844b42376eae

      SHA256

      fdca7f40a68323d1018e12537b343a6094bb15a905d888936e603bfd6270a4ab

      SHA512

      86ac3b840a75b3952aedc86db8581d23571369fd477e3c6d572c6abfdd2acf1cf4d51f97111be802b9447e001057b702aba1dcb23132e79ed6f038f824de50e6

    • C:\Program Files\Java\jdk-1.8\bin\kinit.exe

      Filesize

      1024KB

      MD5

      1b936a5c02ca2d4e9cfa4f94ada18954

      SHA1

      92d1201918a64f3b67ff5e90b0db1a2424f71aff

      SHA256

      b4e3c5412ba322bd10a40fd336d692653e78626d71a01a98e3cf81a958ca3610

      SHA512

      0fd8f9c1de39868df30c4d26f5c3673cd860fb32676853e099704d184882ca3d81fac084a1d9acbc6fc58358f8e1ce5dd53055aad3e23efd2d61de69c34d2e5f

    • C:\Program Files\Java\jdk-1.8\bin\klist.exe

      Filesize

      1.3MB

      MD5

      b008862691d7fda5a9a26066c4150c48

      SHA1

      c1544c4f51569bdb509be74a60d0a7346ab9b6fc

      SHA256

      587e340f62c84f439a80f2dae555902d046c064d6e308572c7e48f66cc9aaab4

      SHA512

      cfbb724f0714326c3408024de47cd5942eef35164a517bba38a51f714d3308f47f043db5bd8dd17039b423328555cc8e4510cedfcb7f7daf2dba84d7573803b7

    • C:\Program Files\Java\jdk-1.8\bin\ktab.exe

      Filesize

      1008KB

      MD5

      2805eb4f21428b3b6bf32b647091715b

      SHA1

      4925240a1ca7734936df148ce71d0e26ef9fe842

      SHA256

      1da8a2866f6875593c90d25c568129fa20505499f54d10a3f109e08b759f36b5

      SHA512

      8b823bcdbab1be50abe403e0dd79c3ff331d3d0ec82eaff0fa5ffb14266a36e266663dd6fac6786b77de43f26b73220c05cc6c6e02c73912c2d73bb3ddf0f09d

    • C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe

      Filesize

      944KB

      MD5

      0f964208b75934403d05fd264e9fdabe

      SHA1

      516a0acfd586191456cdaecbe3413cfdb6418eea

      SHA256

      4f3d0665691a20199e475e8304b02230e982de5320aa1aac3959ce6ee57ac99c

      SHA512

      050113e8acfbbea541fdce9434d438973a6701800e6e361be917bf918f15255c00061e0b048eb4339dd6dff9c7543f7379f1c5da4da0cb39ea79c0ba8814b1ff

    • C:\Program Files\Java\jdk-1.8\bin\orbd.exe

      Filesize

      992KB

      MD5

      a5198c9ed01527e69cc680aa15cf3efb

      SHA1

      73192597265089be19811934fc3a53626965888f

      SHA256

      8df2f2c07d2cbccfc2e15ad39d5c9197a0d6b328f91bd2d5c0eeb051aca4c9bb

      SHA512

      494cdd5eee3df6048b045d44fa5156ad073d8cc6be52d49f649f702c2451e087484444c9225983e4d19a7ba4636935d2e70df34a81e1d32996dc125837e9fe65

    • memory/880-0-0x00000000020B0000-0x0000000002110000-memory.dmp

      Filesize

      384KB

    • memory/880-7-0x00000000020B0000-0x0000000002110000-memory.dmp

      Filesize

      384KB

    • memory/880-39-0x0000000140000000-0x0000000140222000-memory.dmp

      Filesize

      2.1MB

    • memory/880-1-0x0000000140000000-0x0000000140222000-memory.dmp

      Filesize

      2.1MB

    • memory/1208-105-0x0000000000420000-0x0000000000480000-memory.dmp

      Filesize

      384KB

    • memory/1208-95-0x0000000000420000-0x0000000000480000-memory.dmp

      Filesize

      384KB

    • memory/1208-97-0x0000000140000000-0x00000001401B6000-memory.dmp

      Filesize

      1.7MB

    • memory/1208-269-0x0000000140000000-0x00000001401B6000-memory.dmp

      Filesize

      1.7MB

    • memory/1504-43-0x0000000000D70000-0x0000000000DD0000-memory.dmp

      Filesize

      384KB

    • memory/1504-265-0x0000000140000000-0x0000000140237000-memory.dmp

      Filesize

      2.2MB

    • memory/1504-48-0x0000000140000000-0x0000000140237000-memory.dmp

      Filesize

      2.2MB

    • memory/1504-61-0x0000000000D70000-0x0000000000DD0000-memory.dmp

      Filesize

      384KB

    • memory/1980-75-0x00000000001A0000-0x0000000000200000-memory.dmp

      Filesize

      384KB

    • memory/1980-266-0x0000000140000000-0x000000014022B000-memory.dmp

      Filesize

      2.2MB

    • memory/1980-67-0x00000000001A0000-0x0000000000200000-memory.dmp

      Filesize

      384KB

    • memory/1980-70-0x0000000140000000-0x000000014022B000-memory.dmp

      Filesize

      2.2MB

    • memory/3524-44-0x0000000000EC0000-0x0000000000F20000-memory.dmp

      Filesize

      384KB

    • memory/3524-58-0x0000000000EC0000-0x0000000000F20000-memory.dmp

      Filesize

      384KB

    • memory/3524-46-0x0000000140000000-0x0000000140135000-memory.dmp

      Filesize

      1.2MB

    • memory/3524-64-0x0000000000EC0000-0x0000000000F20000-memory.dmp

      Filesize

      384KB

    • memory/3524-68-0x0000000140000000-0x0000000140135000-memory.dmp

      Filesize

      1.2MB

    • memory/3696-79-0x0000000000C00000-0x0000000000C60000-memory.dmp

      Filesize

      384KB

    • memory/3696-86-0x0000000000C00000-0x0000000000C60000-memory.dmp

      Filesize

      384KB

    • memory/3696-80-0x0000000140000000-0x00000001401B1000-memory.dmp

      Filesize

      1.7MB

    • memory/3696-94-0x0000000140000000-0x00000001401B1000-memory.dmp

      Filesize

      1.7MB

    • memory/3696-90-0x0000000000C00000-0x0000000000C60000-memory.dmp

      Filesize

      384KB

    • memory/4380-12-0x00000000006C0000-0x0000000000720000-memory.dmp

      Filesize

      384KB

    • memory/4380-88-0x0000000140000000-0x0000000140191000-memory.dmp

      Filesize

      1.6MB

    • memory/4380-19-0x00000000006C0000-0x0000000000720000-memory.dmp

      Filesize

      384KB

    • memory/4380-13-0x0000000140000000-0x0000000140191000-memory.dmp

      Filesize

      1.6MB

    • memory/4384-104-0x0000000140000000-0x0000000140190000-memory.dmp

      Filesize

      1.6MB

    • memory/4384-25-0x0000000140000000-0x0000000140190000-memory.dmp

      Filesize

      1.6MB

    • memory/4384-33-0x0000000000720000-0x0000000000780000-memory.dmp

      Filesize

      384KB

    • memory/4384-32-0x0000000000720000-0x0000000000780000-memory.dmp

      Filesize

      384KB

    • memory/4384-26-0x0000000000720000-0x0000000000780000-memory.dmp

      Filesize

      384KB