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Analysis

  • max time kernel
    91s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/11/2022, 19:47

General

  • Target

    91bebfe6d870b6cc1cbe3be00b9e10bab87c849c36b4264bb79a14d8c64cafb6.exe

  • Size

    2.2MB

  • MD5

    2d7e2bc74ede724226fac02b0bc3d451

  • SHA1

    bd244c7d85370f6981c4d6f4ea2493d94093c9a1

  • SHA256

    91bebfe6d870b6cc1cbe3be00b9e10bab87c849c36b4264bb79a14d8c64cafb6

  • SHA512

    f78cefa295a8912c91701234274aee7d421d8f2194745af6c1201928de9703a2b71bc37691f050ae16ebe837a703339fec4da94c29bdd95a2e156d8fbb39de36

  • SSDEEP

    49152:ahDwLQifdBoDfAxtURbQcwdQIloIdWeqRG+EefTa9AfXjCZeRase4BXgOswsFtej:aI/fdBOfAxtURbEQIloIdWeqRG+EefTc

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Registers COM server for autorun 1 TTPs 4 IoCs
  • Loads dropped DLL 3 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 8 IoCs

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

  • Drops file in Program Files directory 8 IoCs
  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91bebfe6d870b6cc1cbe3be00b9e10bab87c849c36b4264bb79a14d8c64cafb6.exe
    "C:\Users\Admin\AppData\Local\Temp\91bebfe6d870b6cc1cbe3be00b9e10bab87c849c36b4264bb79a14d8c64cafb6.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Users\Admin\AppData\Local\Temp\404269c2\sxDcemm691fsgGr.exe
      "C:\Users\Admin\AppData\Local\Temp/404269c2/sxDcemm691fsgGr.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Drops file in Program Files directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:3172
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\YoutubeAdBlocke\BiZtbkCXa3A9Pr.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:3380
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\YoutubeAdBlocke\BiZtbkCXa3A9Pr.x64.dll"
          4⤵
          • Registers COM server for autorun
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          • Modifies Internet Explorer settings
          • Modifies registry class
          PID:1392

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\YoutubeAdBlocke\BiZtbkCXa3A9Pr.dat

    Filesize

    3KB

    MD5

    983bde2086dea676a7452b40823eebe1

    SHA1

    402841db62174b2b105c7ffe474f7fe307680290

    SHA256

    8415960ef53d5c20184e21929765f6542a013374bb37b4cc42b6c37d43c187ec

    SHA512

    c99b2c12b4093a5a33434edc9acb9ea837365184ad27c033710150702e2aa6b14cdc600ec35eefa3081ccf7e9d76bbeaa100c95959af33004d810d3845962f5d

  • C:\Program Files (x86)\YoutubeAdBlocke\BiZtbkCXa3A9Pr.dll

    Filesize

    615KB

    MD5

    1eaa91e0947d30dd98e8fef4de5511c0

    SHA1

    100957224870c455f723a3023485c1367e778428

    SHA256

    770877c5eeb92ae93fc752e2648bf63811f9d33b322c7b24a25d12f881ff343c

    SHA512

    a1263ed470cb4b07ccda33d7220315810dc21d6d79a629ced6e07e2f61c9b6706dc8a58765d18eac91d2184e3ab0a2f2e84148e16e7426b7fa68b6315f1d2a3d

  • C:\Program Files (x86)\YoutubeAdBlocke\BiZtbkCXa3A9Pr.tlb

    Filesize

    3KB

    MD5

    115d6d22fe2278653b9b429687bc4cdc

    SHA1

    0098ed796e103cd85780a48c00c65942010187fc

    SHA256

    55cdbc42ce94a3e3115a4c53fff47473525ed9af69ae774bbbd78a83ab60c9f3

    SHA512

    ba72fde0fba9c78d03da94d50e77fcd2469c9f6242ad2a475cc67f2f76742f1435af105d4c2c5353bb3f1083a423d702f461b0fe63e63edc774f4c6aada19bd6

  • C:\Program Files (x86)\YoutubeAdBlocke\BiZtbkCXa3A9Pr.x64.dll

    Filesize

    695KB

    MD5

    fb4a23e7f4ef5c4cdaa5a87ed0eff861

    SHA1

    f1fb97557ccc7c54dec798931f59bf0085e40fa2

    SHA256

    b64a38d8fa5b1be931e49e53f5c0ec1a5c1d47f17cd33484bde4cd05b3f8a1d4

    SHA512

    42bd11ca1dc2ad2da4500e6fbf1ecaac739f530e63362fdee01b5bb2f4e44ed4da78db9799ba5e2bb9ac79ef4b64b5be683aa6fdf20bca0660f9031c8dc0c127

  • C:\Program Files (x86)\YoutubeAdBlocke\BiZtbkCXa3A9Pr.x64.dll

    Filesize

    695KB

    MD5

    fb4a23e7f4ef5c4cdaa5a87ed0eff861

    SHA1

    f1fb97557ccc7c54dec798931f59bf0085e40fa2

    SHA256

    b64a38d8fa5b1be931e49e53f5c0ec1a5c1d47f17cd33484bde4cd05b3f8a1d4

    SHA512

    42bd11ca1dc2ad2da4500e6fbf1ecaac739f530e63362fdee01b5bb2f4e44ed4da78db9799ba5e2bb9ac79ef4b64b5be683aa6fdf20bca0660f9031c8dc0c127

  • C:\Program Files (x86)\YoutubeAdBlocke\BiZtbkCXa3A9Pr.x64.dll

    Filesize

    695KB

    MD5

    fb4a23e7f4ef5c4cdaa5a87ed0eff861

    SHA1

    f1fb97557ccc7c54dec798931f59bf0085e40fa2

    SHA256

    b64a38d8fa5b1be931e49e53f5c0ec1a5c1d47f17cd33484bde4cd05b3f8a1d4

    SHA512

    42bd11ca1dc2ad2da4500e6fbf1ecaac739f530e63362fdee01b5bb2f4e44ed4da78db9799ba5e2bb9ac79ef4b64b5be683aa6fdf20bca0660f9031c8dc0c127

  • C:\Users\Admin\AppData\Local\Temp\404269c2\BiZtbkCXa3A9Pr.dll

    Filesize

    615KB

    MD5

    1eaa91e0947d30dd98e8fef4de5511c0

    SHA1

    100957224870c455f723a3023485c1367e778428

    SHA256

    770877c5eeb92ae93fc752e2648bf63811f9d33b322c7b24a25d12f881ff343c

    SHA512

    a1263ed470cb4b07ccda33d7220315810dc21d6d79a629ced6e07e2f61c9b6706dc8a58765d18eac91d2184e3ab0a2f2e84148e16e7426b7fa68b6315f1d2a3d

  • C:\Users\Admin\AppData\Local\Temp\404269c2\BiZtbkCXa3A9Pr.tlb

    Filesize

    3KB

    MD5

    115d6d22fe2278653b9b429687bc4cdc

    SHA1

    0098ed796e103cd85780a48c00c65942010187fc

    SHA256

    55cdbc42ce94a3e3115a4c53fff47473525ed9af69ae774bbbd78a83ab60c9f3

    SHA512

    ba72fde0fba9c78d03da94d50e77fcd2469c9f6242ad2a475cc67f2f76742f1435af105d4c2c5353bb3f1083a423d702f461b0fe63e63edc774f4c6aada19bd6

  • C:\Users\Admin\AppData\Local\Temp\404269c2\BiZtbkCXa3A9Pr.x64.dll

    Filesize

    695KB

    MD5

    fb4a23e7f4ef5c4cdaa5a87ed0eff861

    SHA1

    f1fb97557ccc7c54dec798931f59bf0085e40fa2

    SHA256

    b64a38d8fa5b1be931e49e53f5c0ec1a5c1d47f17cd33484bde4cd05b3f8a1d4

    SHA512

    42bd11ca1dc2ad2da4500e6fbf1ecaac739f530e63362fdee01b5bb2f4e44ed4da78db9799ba5e2bb9ac79ef4b64b5be683aa6fdf20bca0660f9031c8dc0c127

  • C:\Users\Admin\AppData\Local\Temp\404269c2\[email protected]\bootstrap.js

    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\404269c2\[email protected]\chrome.manifest

    Filesize

    35B

    MD5

    3b41d681cf4fe5c29d015b123c6fe2e4

    SHA1

    81ac50f55b3cb6725b6fdf32a9b1b62ac17a538b

    SHA256

    84439dacdcaec7b4f3747834fd9bf64dac332ba2bf6502fa9dd88822594c5adb

    SHA512

    c98bc1e2fb7c0ca0299a00ead30a4d1acce276e98f9f7f6cdbc2f109e6657b53fd8119c8c556a691b96d81028cfbed18f0169aae2589b7becf6a825a933c5446

  • C:\Users\Admin\AppData\Local\Temp\404269c2\[email protected]\content\bg.js

    Filesize

    9KB

    MD5

    22d119930114412cf72f9301a593935a

    SHA1

    d3fd6af6bd98688a202a61286bbe278068a46c26

    SHA256

    908f5b6b09e39e300181c6e25a014267caa611dc61851f45caf0c809d2cbec81

    SHA512

    34cde808eb789a288094aae171bedd9066c9ad6e6a140383c4a24dad3416dd457c9a39cd7f866bbf8d1167506658f468e5c9c07b1fa03e7ff42724dcc899783e

  • C:\Users\Admin\AppData\Local\Temp\404269c2\[email protected]\install.rdf

    Filesize

    601B

    MD5

    a300687850e4a14e844269d6c2828d57

    SHA1

    1b2529ac9154294ed399dda15ade4d8c5112d537

    SHA256

    6db8ddc82c7f78fdae0b0a80a455427be4da74fd8fdd8d6881417f7b7d8b8eb2

    SHA512

    defb2fe8a3acb82f0f7eb71b21ebbcde8c4c38162f54ea33c03a5fb97e3b16dd1d35fc5614ff1588f7da0457bbbccc12e6eef8eefadd63c1915aa947890f8db1

  • C:\Users\Admin\AppData\Local\Temp\404269c2\sxDcemm691fsgGr.dat

    Filesize

    3KB

    MD5

    983bde2086dea676a7452b40823eebe1

    SHA1

    402841db62174b2b105c7ffe474f7fe307680290

    SHA256

    8415960ef53d5c20184e21929765f6542a013374bb37b4cc42b6c37d43c187ec

    SHA512

    c99b2c12b4093a5a33434edc9acb9ea837365184ad27c033710150702e2aa6b14cdc600ec35eefa3081ccf7e9d76bbeaa100c95959af33004d810d3845962f5d

  • C:\Users\Admin\AppData\Local\Temp\404269c2\sxDcemm691fsgGr.exe

    Filesize

    620KB

    MD5

    36753a4a14ce9d5740ca200b1b9af325

    SHA1

    a34ab5b60bb97e5ece27f5cf0f69a4201c1803af

    SHA256

    d4ceddec76f76487b43b139e830a2ed180b99cfee787c361b6fd995b21f3c898

    SHA512

    c1b51c57c6b4859ece60ca4e8227823f5f8ef7582f2f62f58d2417946ce364ad571aa9e4d27def69e7084d4ce4c7693a14d240310410e901572f88220e9b1a5c

  • C:\Users\Admin\AppData\Local\Temp\404269c2\sxDcemm691fsgGr.exe

    Filesize

    620KB

    MD5

    36753a4a14ce9d5740ca200b1b9af325

    SHA1

    a34ab5b60bb97e5ece27f5cf0f69a4201c1803af

    SHA256

    d4ceddec76f76487b43b139e830a2ed180b99cfee787c361b6fd995b21f3c898

    SHA512

    c1b51c57c6b4859ece60ca4e8227823f5f8ef7582f2f62f58d2417946ce364ad571aa9e4d27def69e7084d4ce4c7693a14d240310410e901572f88220e9b1a5c