Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8754ad8649add63…

MALICIOUS

PDF

220.0 KB Created: 2021-12-26 23:46:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: c57e95789f0d091261f17b5a41746fc6 SHA-1: fcf8fded88044bb5214066cf6cbe70f766db8846 SHA-256: f8754ad8649add638891e87de193e7a733c4024f82fe30fab01a2644947dd665
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8518

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://drafthe.ru/uplcv?utm_term=cite+blog+post+apa+format PDF link annotation
    • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/972a914372cb9f1f78a48aca0a60df06/59246065934.pdfIn PDF document text
    • http://vps73.juicy-group.com/editor_upload_image/file/71607521056.pdfIn PDF document text
    • http://staropolski.net/Upload/file/wafiwofugefevixo.pdfIn PDF document text
    • https://tresonance.org/uploadfiles/51092813048.pdfIn PDF document text
    • http://cl-pub.com/files/files/budopubepovetum.pdfIn PDF document text
    • http://tythb.com/uploadfile/files/suvizeb.pdfIn PDF document text
    • http://condominiobrisasdelnorte.com/userfiles/file/92562883767.pdfIn PDF document text
    • https://ags-car.com/upload/files/petafuporesajogajirufuker.pdfIn PDF document text
    • http://old.smartplus.pl/ckfinder/userfiles/files/baxodopa.pdfIn PDF document text
    • http://battle.bpv.su/content/files/files/gajodexavu.pdfIn PDF document text
    • https://bloc-immo.com/images/wunasasegizajidorelomisi.pdfIn PDF document text
    • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161565a5e981ae---kupegomewolokalijasulovab.pdfIn PDF document text
    • http://elencostruzioni.it/userfiles/files/xawunu.pdfIn PDF document text
    • https://www.comperat-89.fr/ckfinder/userfiles/files/tonakewagu.pdfIn PDF document text
    • https://558com.vegner.com/userfiles/files/20211104_194425.pdfIn PDF document text
    • http://www.northern-japan.com/image/upload/File/59251873165.pdfIn PDF document text
    • https://triptoboloyfoundation.org/editorsfiles/files/20714602158.pdfIn PDF document text
    • http://www.anjhimayath.com/upload/file/58844614080.pdfIn PDF document text
    • https://armagedonspedycja.pl/files/file/79401676605.pdfIn PDF document text
    • https://tjpapigroup3.com/contents/files/repaviratoxinuz.pdfIn PDF document text
    • http://dothimau.vn/kcfinder/upload/files/20598137266.pdfIn PDF document text
    • https://minipowerpack.net/upload/files/88212396352.pdfIn PDF document text
    • http://holland-ex.com/images/blog/file/gizebatunexonowuruzotupud.pdfIn PDF document text
    • https://jazykovytabor.topenglish.sk/app/webroot/gallery/files/96483980324.pdfIn PDF document text
    • 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_off0003039f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3039F 10768 bytes
SHA-256: db8784951262dc9e244052f6d8e358f9b0c77bbc3a14ecb49995f5ff8d59d810
font_01_sfnt_off00031c41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C41 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000332e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x332E0 17896 bytes
SHA-256: 1ac6c62ebf570dc75d690beb041af60d15cac7df23e2b17a23adf5ecaf226ef1

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