Analysis

  • max time kernel
    90s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 13:54

General

  • Target

    b0de413959b0a157226b6163b109c163ca557a0c9ad05f942a1709dd1d96fc9c.exe

  • Size

    313KB

  • MD5

    92a65c61d21172dd7d2483cdba804344

  • SHA1

    e88a583cb287a71211633441eb1f5493589796d2

  • SHA256

    b0de413959b0a157226b6163b109c163ca557a0c9ad05f942a1709dd1d96fc9c

  • SHA512

    bfa4a4f69a763135f1ada0f07d1504fa1253452150f0d5ec35b482f48d7d7db17edda604e6587183cdeabd3d429e3e631e26f17c3fb3d1089135b3b1bdf80012

  • SSDEEP

    6144:91OgDPdkBAFZWjadD4s5oyKBunzNmLH1e07EaZ/PR:91OgLdaMoy1nzNWH1ealp

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

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

  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 4 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b0de413959b0a157226b6163b109c163ca557a0c9ad05f942a1709dd1d96fc9c.exe
    "C:\Users\Admin\AppData\Local\Temp\b0de413959b0a157226b6163b109c163ca557a0c9ad05f942a1709dd1d96fc9c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4792
    • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\setup.exe
      .\setup.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:796

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\wxDfast\bhoclass.dll

          Filesize

          137KB

          MD5

          ac13c733379328f86568f6e514c2f7f8

          SHA1

          338901240fedcef4e3892fd4c723c89154f4de05

          SHA256

          7bf09b5c2a9b6348227199c1b3951b57907ca6a5c215a04ad8d5e43232f5b562

          SHA512

          35f69a82694a2ea4268a3dde7940af6bd1c87a32d93a72723464f90e4e818805be9e80872469d1cc29150a9aac872fc78613a584baa1327dfa8478c2de5672c4

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\[email protected]\chrome.manifest

          Filesize

          114B

          MD5

          9ce708c8dd2dcc79e5bf9177246a5b58

          SHA1

          b0bff50a25c7cb93fdd757eef889670988f2bde6

          SHA256

          ae5be5a812d5db7c3b5a7e10b12b781ddab5616ed5b2a4bde800fc6e44872c2c

          SHA512

          4435b26faec471e005f63ae3779d0471d2ced23e74814d1216196437b7216332ceeffc7063ecd9f7511f214d8cf00b048e52a1518ccebb487990e44661c8ace0

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\[email protected]\content\indexeddb.js

          Filesize

          1KB

          MD5

          2a80fd2ed7027c9420978f94e7a90eb6

          SHA1

          3b80535792313a4d3deb044a4b9e545a8e8a1d4d

          SHA256

          618206d1645ffda90e8a83d3a1d7d8fd0cca9e88830e0f975e7c839b7bfeb066

          SHA512

          308176bc92400372e4f457d470a8c51597221e6d66a941942886e691dd3ee53eb0183462801b27fd5df09fdbfd3286e06dea5b3244748ed9d2b1b801019f3353

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\[email protected]\content\jquery.js

          Filesize

          91KB

          MD5

          4bab8348a52d17428f684ad1ec3a427e

          SHA1

          56c912a8c8561070aee7b9808c5f3b2abec40063

          SHA256

          3739b485ac39b157caa066b883e4d9d3f74c50beff0b86cd8a24ce407b179a23

          SHA512

          a693069c66d8316d73a3c01ed9e6a4553c9b92d98b294f0e170cc9f9f5502c814255f5f92b93aeb07e0d6fe4613f9a1d511e1bfd965634f04e6cf18f191a7480

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\[email protected]\content\jsext.js

          Filesize

          6KB

          MD5

          64e28a2cb7fbfc04d194b211f17808c0

          SHA1

          a8af9f14e5d48730f182d5d64fc085e4ddb8c6f8

          SHA256

          de6f0f3fd371d175d83eabc59093ccf172d79d680a78b3cdad3b7038f44d64a0

          SHA512

          3e1621a2b64ed0c8b2a430fed61a0dd70cdd733913723c9267a2f3155bd7343a098fb2aefda411e48ed0029bd707dea7bd97fa14f7de04c7b7638cbe23dc30bb

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\[email protected]\content\lsdb.js

          Filesize

          1KB

          MD5

          5cb67e623433e3a1abbaf22f6178b111

          SHA1

          d2f1e4a0c0385a18f2af5e52e9cec3ac8ef8a7d1

          SHA256

          880719276ff0917cb6019e56e6f9eb565e690baec9aee36e7be35188a2951add

          SHA512

          fee0396114378afee68166931773e67b2ad7eb8e16be0269d451072d81b5dd07d32c02ece5bb2cf913ee788546a78773af20ee7c493e235a796345be651cc79b

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\[email protected]\content\prfdb.js

          Filesize

          1KB

          MD5

          067bfac01c29268f3cd9abbab0ca7886

          SHA1

          d5dc4215283d16c32540575cec9fb446f013b961

          SHA256

          f4d878ef7f5f97db4e31e7ec75c70820fd0bd26c3395aa1674142453b9bfa518

          SHA512

          b75a86a5ea2dd0e9c13d252f138c74f9d685255435260d7285ec89cdccce220877ba6a062df62c77e11feb6636854a6b50e550cc4375a70ff5f69c8d81b2a9f2

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\[email protected]\content\sqlite.js

          Filesize

          1KB

          MD5

          da97e99bd97a8ba23e8109c08c01b6ec

          SHA1

          db294d7b2ab02373df0130799496ee5e84c3b95c

          SHA256

          993b7c51b239dd6c2081f5b151452a55ba7a8774e68b1177dc9525c0fdd9b967

          SHA512

          6477832c64110163e1dcc66f87508c344837dfc2d06042b79ce6c7a49d46d4dd632da97e12a6932c2d8888e5206518f5681fea2da0b30f4c6103525b7f5bc5df

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\[email protected]\content\wx.xul

          Filesize

          228B

          MD5

          219af069cc75988e644dcc4e7e543612

          SHA1

          7ada0ee19a00b7d2e20e82e2adbab672b5570ee2

          SHA256

          ee8fa28b404de02f35a4f7b989c3f316d8a66c316bc7071bbb05ab050d311a1e

          SHA512

          57efb2bf0452ab97ccb5c58196d38a0a65088853c335190263778da7daf01a7dcb41b7b6714c6a126fa3cac9d173b8ac8dcb5b8117a97635084ec2284e11fdd1

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\[email protected]\install.rdf

          Filesize

          677B

          MD5

          10623c6d3362aa7d1deeded0fb846e2a

          SHA1

          6fd830d359dfb6fdb2df8c2020662d7f34a03271

          SHA256

          8b8954f2a6236efa77039202360a5a7268bfb778bdd0534ebed446988076aa22

          SHA512

          c8248807cc722c8a074d5005eae8e7a0735f510a775967480b543c34f07f84b933d8eefa0ac8d89d609c611795604349722615096d85d3a06702741b06316ed8

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\background.html

          Filesize

          5KB

          MD5

          fc4b8fcd404bd705304a399058518f37

          SHA1

          d4f8a3a02f12398e418720e800f99b433d2a19da

          SHA256

          93c7f84c56823b6a0d83bb6a24608ed7c402e43f33008ac2e004952f3c36792e

          SHA512

          d88b678431fe019a911cf332dd4daeb51b952a59cd70c1cd63de8e4475e0c6ad5b216ac9a7ccdb4d42de80f346adf19dd022882433f04776c556f2babc646377

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\bhoclass.dll

          Filesize

          137KB

          MD5

          ac13c733379328f86568f6e514c2f7f8

          SHA1

          338901240fedcef4e3892fd4c723c89154f4de05

          SHA256

          7bf09b5c2a9b6348227199c1b3951b57907ca6a5c215a04ad8d5e43232f5b562

          SHA512

          35f69a82694a2ea4268a3dde7940af6bd1c87a32d93a72723464f90e4e818805be9e80872469d1cc29150a9aac872fc78613a584baa1327dfa8478c2de5672c4

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\content.js

          Filesize

          386B

          MD5

          e2dc1c592ab69fa6a15307872d92c3a8

          SHA1

          7863388fb70cfe67d86a9ae20b83f98695ab4c53

          SHA256

          f1580694f66579f9446413e69b5daf08302c19e5c5f400b0d84416fb787588d2

          SHA512

          b9c85b116d586eb81576543a6190d359a5bc40c2400a4f561a1de368cb25ab12b42af3022cf6d043f378f754ebe0ac6583125f680160b4b619f45f240055bb50

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\dpdbfpkljandglalnacekadnhgecbcbd.crx

          Filesize

          37KB

          MD5

          3e440f51e310e592079edb8c38f69b07

          SHA1

          bfc8e1d95250ed9185ec2d5a0b91245c461edf8b

          SHA256

          c8e579be5a55e38ce6a99fc41323a57eb5cfbf1d5a0ed5cea33f1b12cdd4e34e

          SHA512

          b1cbcf5a87e8fc49fec9c73f0644aa1bcae66f2e80b9e12e872bc144e6c4533989eeeea94b5303661bd33abed705c58dc2b0055e043316d95cc2d7b982398773

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\settings.ini

          Filesize

          599B

          MD5

          f7b04d26c3b48d9b2a1dad5fdc8266b7

          SHA1

          1d18f7b6180ec16194cc05f8edcc18e553ce4bcb

          SHA256

          394f6ae16ad7291b993bc729e2d7b17ae966888e3afdacb9ea3a882bf6f3254f

          SHA512

          6e2b2c6476574e2da37758a0bcc8ce63b62e3fc9dbdca49f7f9daf964b03d2b8dc5283accc29a24be115bd0de27219a6c179a913ed4b9b190b4118738956120f

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\setup.exe

          Filesize

          61KB

          MD5

          201d2311011ffdf6c762fd46cdeb52ab

          SHA1

          65c474ca42a337745e288be0e21f43ceaafd5efe

          SHA256

          15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa

          SHA512

          235d70114f391d9e7a319d94bdfc49665d147723379de7487ef76cfc968f7faa3191153b32ba1ab466caeeeeef4852381529a168c3acca9a8d5a26dfe0436f6b

        • C:\Users\Admin\AppData\Local\Temp\7zS87B3.tmp\setup.exe

          Filesize

          61KB

          MD5

          201d2311011ffdf6c762fd46cdeb52ab

          SHA1

          65c474ca42a337745e288be0e21f43ceaafd5efe

          SHA256

          15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa

          SHA512

          235d70114f391d9e7a319d94bdfc49665d147723379de7487ef76cfc968f7faa3191153b32ba1ab466caeeeeef4852381529a168c3acca9a8d5a26dfe0436f6b