Analysis

  • max time kernel
    27s
  • max time network
    33s
  • platform
    windows11-21h2_x64
  • resource
    win11-20231215-en
  • resource tags

    arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    30-01-2024 18:01

General

  • Target

    a24362e4ac45ec3e35f16b91d593b35976b1cb795a81d19e88ac5969d0cfb68f.exe

  • Size

    4.6MB

  • MD5

    a3c87ce12367c83104cda662ef76afb0

  • SHA1

    6538657286bb504cbb3cddb6b97e06c39fa904d0

  • SHA256

    a24362e4ac45ec3e35f16b91d593b35976b1cb795a81d19e88ac5969d0cfb68f

  • SHA512

    af65593b1443bb384ed0ef0425502e642ae19bd8fd2ec4800862cbb777b55bbb9fec57faa214e3ce9c3938aa06d10a4889f073dade28a225b57a8cf6e9b1efd3

  • SSDEEP

    98304:ktv3TCmi5ov0BDwZwaIRTdGRaHcqpfiWRwwqy2tjXcP3EFSjia:ktvTL/0BEFIRBDHbpsptjXcP3EFC

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 15 IoCs
  • Registers COM server for autorun 1 TTPs 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 9 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a24362e4ac45ec3e35f16b91d593b35976b1cb795a81d19e88ac5969d0cfb68f.exe
    "C:\Users\Admin\AppData\Local\Temp\a24362e4ac45ec3e35f16b91d593b35976b1cb795a81d19e88ac5969d0cfb68f.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:4044
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 /s "C:\Program Files\Notepad++\contextMenu\NppShell.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4336
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files\Notepad++\contextMenu\NppShell.dll"
        3⤵
        • Loads dropped DLL
        • Registers COM server for autorun
        • Modifies registry class
        PID:4692
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe" "C:\Program Files\Notepad++\notepad++.exe"
      2⤵
        PID:2988
      • C:\Program Files\Notepad++\notepad++.exe
        "C:\Program Files\Notepad++\notepad++.exe" "C:\Program Files\Notepad++\change.log"
        2⤵
        • Executes dropped EXE
        PID:1172
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:3424
      • C:\Program Files\Notepad++\notepad++.exe
        "C:\Program Files\Notepad++\notepad++.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1532
        • C:\Program Files\Notepad++\updater\gup.exe
          "C:\Program Files\Notepad++\updater\gup.exe" -v8.62 -px64
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetWindowsHookEx
          PID:2264

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files\Notepad++\change.log

      Filesize

      2KB

      MD5

      49289d54ac50144085f380ce7d6002a8

      SHA1

      6b18c63177c482ffe34f542e13b62632712dccdd

      SHA256

      c6462ec921d8aa721999a75022891c0bf8e12e75941a59808cd7cb6a7b30a0ef

      SHA512

      199d817633cf056c43dd23ab9450dc336486635e9beba584c01e8a4481300da036be6cb0caa079d1679528100ea9a891601e0aaa9b7ca8c364fc622cc84c2cb3

    • C:\Program Files\Notepad++\contextMenu\NppShell.dll

      Filesize

      388KB

      MD5

      a3f7ba2ee563b50dcd411376f66c8d02

      SHA1

      b865b1e878b3a68538c5ebe0aeffc98ff617736d

      SHA256

      42272408ffb295313636f3f3b19947079339e32b43368d6c379fd8c911ec5122

      SHA512

      40b69e2dca62984d4e28d9db822961ffd41df5911ed83b5e826668d5aafeb0ff101139dcfb7c51f96b7f9ee417155cf421ad7a743159b722bb2841729f4a7193

    • C:\Program Files\Notepad++\langs.model.xml

      Filesize

      150KB

      MD5

      721e8deaa48f32d5e26ff02c84014fa1

      SHA1

      37b326fdbf24c0de903bb81e6d4406637b04d9fe

      SHA256

      1a851d47c604bd1772e225fc05e63059f7a5e1b6f72bf6fa78d19b6209b382d6

      SHA512

      0fe20243a86ca7b87f4b3714f79ef1bf312847410289e76aac74bb86605e1ba25f244200f5e34dfd2b5d4b342b11d1f9d738bc76754dffab37a424fdebd4febf

    • C:\Program Files\Notepad++\notepad++.exe

      Filesize

      4.7MB

      MD5

      8ef644a2a35681a7a5c3d6976f7a796f

      SHA1

      08bd6db3ed39eced2bf01b45392480adf85b2838

      SHA256

      06ef7ab0683aa32b138487487cba631b1de19d71a82c2e0c8db5b794f7ed53ab

      SHA512

      f1d02520dc62cfd50f773228e3d4a2aaef442a27458fdde562f5b7f2a4b002035924bc49a51d29c89198fd0eede2198173299ce9c23550fdf7dbb00c8ac2af3e

    • C:\Program Files\Notepad++\notepad++.exe

      Filesize

      616KB

      MD5

      cfb1fb512fb4cc2e0807de5f2155d1db

      SHA1

      959ba287e4a0e2fa83bdd60c91459f3ddfc77c37

      SHA256

      3594d773f7b11e9bb51638b8cfc2737cc671327b2083b94b3e66a0b79cc6b428

      SHA512

      6b12bb39de2c08c75070bb7f632bd5fcd1d893792c37e1bb7d9e44efd51b60635aabfbf6e6bb93473439eced08127f4ee29139da36a91d3d919dff6a1e9af0c2

    • C:\Program Files\Notepad++\notepad++.exe

      Filesize

      132KB

      MD5

      eeca1ed8e41f8681b2167af0bfd208eb

      SHA1

      1b45518262b7d59f8e0bdf4c0e13f528298947a5

      SHA256

      ec672263bdfe0030b3f9fcbdd433c6f7dc619139cc1b21e016c8ff7252177d9c

      SHA512

      a27ca6abb803d4e2731e47b8ee1149b624d1d3672b2b73399185e4c6d657b16503568ccf1d6c0b614f500e1b835d587dcf52892d088c64a4602e577bc1c65cd5

    • C:\Program Files\Notepad++\plugins\Config\nppPluginList.dll

      Filesize

      203KB

      MD5

      b65fdddd07b2cac6fbe48b965a7f3f10

      SHA1

      57873c8ae4ef062340299db8e92e616121011a51

      SHA256

      9ff8dbeb2d3ca17cd543621464f37b3d9b78b7d9194e83294e9d06624fabb7bf

      SHA512

      5afaf8409a8572f353c51e0e44201d0ab12a9c94aa97fee8097334cf5e37f409e123b852c3b139cd506ea8e8a802e0a771a0ce4ebea04c3905edd47e9b64f64f

    • C:\Program Files\Notepad++\plugins\NppConverter\NppConverter.dll

      Filesize

      199KB

      MD5

      13c6c862f6efcab7f9190ae77091f8c3

      SHA1

      c80d1e8be75b658b2d226febc9365e1b7eed2f31

      SHA256

      88ded8ea380aa1b2deb5a6ba0c600e74a445c862919bf15cd0deed3987f1951e

      SHA512

      1518993690daf78d7883c19a6b9d78be205542888ce06f4e4a484b02b9108b13180657c45e93ddad0dfbea33554ca707ac5a170190ed27d35f3023647b3dc14a

    • C:\Program Files\Notepad++\plugins\NppExport\NppExport.dll

      Filesize

      116KB

      MD5

      d1e06e2035905ae4d40a853a86527d9d

      SHA1

      3ecbfee301659beae5386839ca2ef9138c894f3b

      SHA256

      af7481f13e984f86b7643c43f6d37274366e4d693b674b71451c82181fa12d10

      SHA512

      e9ac97c1cdfb4f8a8babeb060048fbd68d2e37b7d6922faa77e4bb5846312b14f7daa77c1ca04c2704b36b2367adbfa805fd2e70e01827daf93ae875eff640ee

    • C:\Program Files\Notepad++\plugins\NppExport\NppExport.dll

      Filesize

      153KB

      MD5

      2e9427296085643dd15eed57360c4490

      SHA1

      ea9cf44eac4d19e7dbc723b5ce2541dd9d6de31c

      SHA256

      089780324ce5e5482876a9da6271dd7d7c0acc41dfff03deb6c5c1925828dd8b

      SHA512

      b5089dd044b670da06fc95449a05fdc73cfe428e49eff55de2d73c4e9905cd82d32eb3567bf7709105fcb253c05d66552988599628f55afdec07543a546453cd

    • C:\Program Files\Notepad++\plugins\mimeTools\mimeTools.dll

      Filesize

      145KB

      MD5

      27aa04bd27cd40bebb2fe0f2923b3670

      SHA1

      c0c5e034dacf5fb86f1fb83bd7870f4465ec6618

      SHA256

      cdbdd182cac307ea29fcffde1243f73c07ea746d72fb94a38a3363e928de4039

      SHA512

      8b5d5dfc8168698ddb4e395dab4c1458ae63254e4d823dfae761a39c2aaeb335e3fce4cc37e7230bdf16a15e7c1ba865e9bbd88770320379edf932fee29ad13c

    • C:\Program Files\Notepad++\shortcuts.xml

      Filesize

      1KB

      MD5

      a15d2189af3e788400d76380414a9e7f

      SHA1

      2471b360d5ed690f5e75f7d25633e0134fc598e2

      SHA256

      4c4707105025a4196595cdb2cd49e141725df3c55aca6750092469a88edad6e3

      SHA512

      f429ed05e2c7f1e4faaebd3eaa7c3b548f03488f81364757b9beef100a6b6892c55d65f9c55900ac72221e2673bfdce31e36d0142c38c9a835e280eec29a29de

    • C:\Program Files\Notepad++\stylers.model.xml

      Filesize

      182KB

      MD5

      343b8f55f376e88674733286d027f834

      SHA1

      466886054d5c2641ba6058f58a7a84053aa4696e

      SHA256

      f002b36e70f0fb159885c21fa6e6395176cd50a254201a94cbed756d9843fa9a

      SHA512

      ef6643badbb87739f0ae847d201651f8d3e677c54ca2aa3f81277b053355772f71d9b0f490617c104ce861a29e2b283fe6d82faf4cfe8f10bfc571d683cfea8e

    • C:\Program Files\Notepad++\updater\GUP.exe

      Filesize

      781KB

      MD5

      d6847c3d5f61fbe3828c3957dd10e55f

      SHA1

      e5ec5656e3ec625bbca4bf18226b91bafe13f08d

      SHA256

      97fa482c0c0e99244c6bc3760c4fd23e00eff54cb44d8068fd07dbf8ba85d97d

      SHA512

      15fe13f7c45bde1b7992d228cdc6e1eaf1e629cae162c74cb81e7a92ee947a611681b0917e7f05ee301658342347e28610fb52118de32473bc768f97b053f660

    • C:\Program Files\Notepad++\updater\gup.exe

      Filesize

      749KB

      MD5

      bccaf7ec1d39c5ea3853a61abc7ccd8e

      SHA1

      1278b42b57a1c4640f7d5aca7af6a2a8926b16ce

      SHA256

      1478ef9da19fa1d6192003dd03e1630542fb490686e491b41fb9f43e957b98cd

      SHA512

      65326911d5dc0d2b02987d3dd15ddc325b55552ef2de5d1850dfe1f509e147370510c0237565f20a2b3f3fc0e70ba5cd13d3f1cda4296db670182a036b315469

    • C:\Program Files\Notepad++\updater\gup.xml

      Filesize

      4KB

      MD5

      abde55a0b1cb4a904e622c02f559dcd1

      SHA1

      1662f8445a000bbf7c61c40e39266658f169bf13

      SHA256

      92717951aae89e960b142cef3d273f104051896a3d527a78ca4a88c22b5216a5

      SHA512

      8fe75fb468f87be1153a6a0d70c0583a355f355bfe988027c88d154b500e97f2c5241d9557ebb981067205e2f23ad07b6a49c669cd3e94eaa728201173b235a0

    • C:\Program Files\Notepad++\updater\libcurl.dll

      Filesize

      615KB

      MD5

      42a2c7cf4c5d8818ac9522ba2a816728

      SHA1

      72d4ca27bbfcc93dd5534d64d9c07885fe147a29

      SHA256

      613319bd1d0f29ddbc7a40ee4aadd666135c9022099531149250a8891720bf15

      SHA512

      f1b31d4b06af61ee951577d8fd9b22fb0268c445918ebdc95cd16278fef27775d03b8b27506359dad20e14b86f5cbed16ba03c3f54c3adf426417392056f4e44

    • C:\Program Files\Notepad++\updater\libcurl.dll

      Filesize

      717KB

      MD5

      7cea2bc33d73ee4ad28a3b90c9d608f2

      SHA1

      2a1b0048e7900d05fe0b9b416ba94dfa91c55047

      SHA256

      78e4bdabc35faee149aea45ecc746181056929468ff39f7366a6293f53bbf674

      SHA512

      399a92e106640e4d88335aaf620f3778b1d838553d2b398779ef227f5a937064466b53eaa09a773ef62cff3cab895bf7f6c3d45eb35dfc4d421815ee64c77529

    • C:\Users\Admin\AppData\Local\Temp\nsu91D2.tmp\InstallOptions.dll

      Filesize

      15KB

      MD5

      ece25721125d55aa26cdfe019c871476

      SHA1

      b87685ae482553823bf95e73e790de48dc0c11ba

      SHA256

      c7fef6457989d97fecc0616a69947927da9d8c493f7905dc8475c748f044f3cf

      SHA512

      4e384735d03c943f5eb3396bb3a9cb42c9d8a5479fe2871de5b8bc18db4bbd6e2c5f8fd71b6840512a7249e12a1c63e0e760417e4baa3dc30f51375588410480

    • C:\Users\Admin\AppData\Local\Temp\nsu91D2.tmp\LangDLL.dll

      Filesize

      5KB

      MD5

      68b287f4067ba013e34a1339afdb1ea8

      SHA1

      45ad585b3cc8e5a6af7b68f5d8269c97992130b3

      SHA256

      18e8b40ba22c7a1687bd16e8d585380bc2773fff5002d7d67e9485fcc0c51026

      SHA512

      06c38bbb07fb55256f3cdc24e77b3c8f3214f25bfd140b521a39d167113bf307a7e8d24e445d510bc5e4e41d33c9173bb14e3f2a38bc29a0e3d08c1f0dca4bdb

    • C:\Users\Admin\AppData\Local\Temp\nsu91D2.tmp\System.dll

      Filesize

      12KB

      MD5

      cff85c549d536f651d4fb8387f1976f2

      SHA1

      d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

      SHA256

      8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

      SHA512

      531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

    • C:\Users\Admin\AppData\Local\Temp\nsu91D2.tmp\UserInfo.dll

      Filesize

      4KB

      MD5

      2f69afa9d17a5245ec9b5bb03d56f63c

      SHA1

      e0a133222136b3d4783e965513a690c23826aec9

      SHA256

      e54989d2b83e7282d0bec56b098635146aab5d5a283f1f89486816851ef885a0

      SHA512

      bfd4af50e41ebc56e30355c722c2a55540a5bbddb68f1522ef7aabfe4f5f2a20e87fa9677ee3cdb3c0bf5bd3988b89d1224d32c9f23342a16e46c542d8dc0926

    • C:\Users\Admin\AppData\Local\Temp\nsu91D2.tmp\ioSpecial.ini

      Filesize

      1KB

      MD5

      40b2408243a2c447313cd42cdd78b7f0

      SHA1

      cda5458b6a7981aafef643616dfc3ceb8092392d

      SHA256

      164e655f3a9aa903067650f2f8e48724e43f8bd5716666fead9b833104fbf3c7

      SHA512

      1f71d00f96f3186ff99bdbef6e34b67f22a4177c4e7056f98b8478e569bfbc730f040a9db665a56dcab141969a554832fc0c11247b037a85be9ab86c304627c9

    • C:\Users\Admin\AppData\Local\Temp\nsu91D2.tmp\ioSpecial.ini

      Filesize

      1KB

      MD5

      3e44f31c69ea01a60d42df49a49cd9de

      SHA1

      b24224542ff15540d4da20547603eef0cc8d89ce

      SHA256

      d2601ee4abbab007575b8b643a3bef04037250eba5f5f621d14b64c98f5918bd

      SHA512

      1ef71d42ee2663ab17292a80169c9a8dfb4eec7014aeafad293e2257428bfbfcf1fd3579a1b14298f3928035b7938c01ea6c837690ebf3e3e86d40e57afa23a6

    • C:\Users\Admin\AppData\Local\Temp\nsu91D2.tmp\ioSpecial.ini

      Filesize

      1KB

      MD5

      9acbb9ad0a3604b226672d3c8fe586e0

      SHA1

      0dc6a213a95b0d3807363f616a80761f7302bbf3

      SHA256

      167e5307abc7c7d6f3d6303028e64aebb2fd10286544ee3fb88f7ba236ffecb1

      SHA512

      2fe88ae113b20919cce79fd4894ad5bcc70851d5120cec685c6d87a9418a8f8f899828c5f63bbbc25858c692157292af98de0ffad286a775ea1ae15e6a0d9dd8

    • C:\Users\Admin\AppData\Local\Temp\nsu91D2.tmp\nsDialogs.dll

      Filesize

      9KB

      MD5

      6c3f8c94d0727894d706940a8a980543

      SHA1

      0d1bcad901be377f38d579aafc0c41c0ef8dcefd

      SHA256

      56b96add1978b1abba286f7f8982b0efbe007d4a48b3ded6a4d408e01d753fe2

      SHA512

      2094f0e4bb7c806a5ff27f83a1d572a5512d979eefda3345baff27d2c89e828f68466d08c3ca250da11b01fc0407a21743037c25e94fbe688566dd7deaebd355

    • C:\Users\Admin\AppData\Roaming\Notepad++\contextMenu.xml

      Filesize

      4KB

      MD5

      fde4cc09d1c18c6cd7c1a4878e89d27e

      SHA1

      22fba21b254fed1a60da5de2b8af3cf6e132b647

      SHA256

      43ac0b7ba9b1f91fd8d4841b8119344e6212b307a1decccf61658f31d38bb425

      SHA512

      fcc87b93cb4dd0949e82edb7d2788d7abd317f9f4c5f046ceba1cd85a64b12b29c6baba3e8646265db02a48a2dc20c3b5e893a1334d9b1e91d26692b4e9c2d29

    • C:\Users\Admin\AppData\Roaming\Notepad++\langs.xml

      Filesize

      133KB

      MD5

      1da10c1c6f8e06d725bbd149abafe6e5

      SHA1

      251ffa8d4e1d5057f241b2d3585f89503ea0d1b4

      SHA256

      47ff35abfe256b5afe3210437387b4b032f3f613a46dacf0db1acdbf839d9bb4

      SHA512

      931f864aa6bd74b244503e889edb5b155f7a70d3b8fbb6cda3751d44e8d319aa5f650566a6017400b561a39783065c9823610a0118345f22322a5adaa15a847a

    • C:\Users\Admin\AppData\Roaming\Notepad++\plugins\config\converter.ini

      Filesize

      646B

      MD5

      f07150054a6afff4d8e9d58899167722

      SHA1

      e092cd960ab728667d91b37d64a02d7f6821518b

      SHA256

      5b0a08439e8e93817772f84e1098f14152d9da36c2601a0600ddaae6f61359d0

      SHA512

      8c86aa4c058a8ab5fd26f21cacc8ddaffa8ce6012bb329d3c5b817da00b4b43018a575c768d1921c6eeab7537f172c7cb3de658b014365ea52fb3c87547182b9

    • C:\Users\Admin\AppData\Roaming\Notepad++\shortcuts.xml

      Filesize

      3KB

      MD5

      fb573784b83033dd4361f52006d02cb8

      SHA1

      0a2923a44ec1bd5e7e8bc7cace15857ae03bf63c

      SHA256

      37a24662cd55b627807bc2bb7cbba5bbf2abaf6da4dd7bbb949bfaa7903eae9c

      SHA512

      753b44b5e8bea858cf5cc5ddfdc38098a2f3f921949cf98706ead95bdfa1de7ab0c115e9d69237623a03c422969480204c69d3ba277141527458c68230d0c67c

    • C:\Users\Admin\AppData\Roaming\Notepad++\toolbarIcons.xml

      Filesize

      2KB

      MD5

      bc4b775a277672fc7edf956120576ecb

      SHA1

      fe7c2db5b4d4c5a3f5603cf56c4d71cc9ee2d71d

      SHA256

      4ec98de37193f41242c1a47507bcc4c1af555e71154f7354272bc3e664e19877

      SHA512

      f87dc3ce52831ee308fbfa2b1b94c07e2811e7028360f046e012f8ea5a8f0ebcd362de7a663dee810c3da0791474c1485b1a2626c7867e76236156b125ff39b2

    • C:\Users\Admin\AppData\Roaming\Notepad++\userDefineLangs\markdown._preinstalled.udl.xml

      Filesize

      6KB

      MD5

      672e6d5f89887666ec94711e442644e0

      SHA1

      8d069ae93347316eff0dcf7aff4d22da18a62af2

      SHA256

      b34fe6811dacfe49d77d434123867e866daf6e0e27387a0446887dabe8943f04

      SHA512

      8fc5e9bbe027826304fa6f329fb16e4c9e4e7a597d87e9c691ed6a9f505b7bc1967339b43c6426105432a030260b0654468ab8fcbb4312b2fb6ed6c6aa537edc

    • C:\Users\Admin\AppData\Roaming\Notepad++\userDefineLangs\markdown._preinstalled_DM.udl.xml

      Filesize

      6KB

      MD5

      3690cef1865e32fe6be1b2ec7656539a

      SHA1

      bc043bec63c310a60d9e242810036460c467945d

      SHA256

      e45e49f0895249d951df2c07e0f06ca1242e05c961dd921e5aa2781ae2e7ff25

      SHA512

      c2be869d96baec2018e13dcf5934dd9cf74146541e852cc2eedb4d83a8af23e2577cde7a0158fefaa11056416ff039df3a7725e320620193e9bfe72c8067c051