Malicious PDF — malware analysis report

Static analysis result for SHA-256 e659a601e96f4738…

MALICIOUS

PDF

198.8 KB Created: 2021-07-08 12:46:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-02
MD5: ba9b76ad5951cdcc434d137f74574599 SHA-1: c24a7b42236329abb86e6f58914bb8692f1a7c0f SHA-256: e659a601e96f4738b459e9ccf25e46fbb141acd51de0c708c7d382b9c5a939d0
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

This PDF document is identified as a credential phishing lure impersonating Amazon. It contains multiple links, including one hosted on a compromised WordPress site, directing users to download potentially malicious files. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into providing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9808

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=contemporary+issues+in+accounting+2nd+edition+pdf+free+download.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.multigacos.com/admin/uploaded/fck/file/66536958772.pdf In PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f49ac1e805---5191477914.pdfIn PDF document text
    • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/958b902fe310b363c1e947f889f026fe/xiteroxabomubuvomima.pdfIn PDF document text
    • https://ev-owners.jp/userfiles//files/28605963554.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5ddf8a0803---57163591313.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/a5ddd6503bb3fc2fa057346aeeff181f/63105194920.pdfIn PDF document text
    • https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/c81d81521e9c539d0ff5f84586a82a97/80912144343.pdfIn PDF document text
    • https://legouic-peinture.fr/userfiles/file/zareramid.pdfIn PDF document text
    • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091b67329ea7---95101662860.pdfIn PDF document text
    • http://jpind.pl/userfiles/file/gopepazonemiba.pdfIn PDF document text
    • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160a3d437c9800---25420213572.pdfIn PDF document text
    • http://belst.by/upload/file/mejuzuzusos.pdfIn PDF document text
    • https://northwestconvention.cz/data/files/33426864948.pdfIn PDF document text
    • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16090ffae6374e---fufolikubuger.pdfIn PDF document text
    • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609613c08d64e---72835525779.pdfIn PDF document text
    • http://oreade-breche.fr/userfiles/file/62696315651.pdfIn PDF document text
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160a707f59daf1---rasimokux.pdfIn PDF document text
    • http://zbraneklapka.cz/ckfinder/userfiles/files/76960594605.pdfIn PDF document text
    • https://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/b4f701b1b6ffe72a8a584812956db88e/desux.pdfIn PDF document text
    • https://actorconseil.com/files/file/46274380203.pdfIn PDF document text
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/5a742606427a66a71c9bbd4c9508c48a/97771283560.pdfIn PDF document text
    • http://autoshiftbid.com/fckeditor/userfiles/file/fupatinidofezotesefukeg.pdfIn PDF document text
    • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/4a66116c2159a1e2aee96166500cd5bf/577927725.pdfIn PDF document text
    • http://csc0851.com/userfiles/file/20210627171810_ong1w2.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=contemporary+issues+in+accounting+2nd+edition+pdf+free+downloadPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002ab07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB07 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0002c319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C319 17680 bytes
SHA-256: 202063fa7f1ea0627f677ed4426a1f6fd67ff99589e187a49d9f8eab641cf985
font_02_sfnt_off0002f189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F189 11416 bytes
SHA-256: d682833477927e278fb73954346158b065cf5d24f3fea77cc037300c2d346107

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