Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d33ff95f76fd66…

MALICIOUS

PDF

80.2 KB Created: 2022-03-30 09:18:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-28
MD5: 957c1f1432f9e87cb3839a917ecbaae5 SHA-1: edafd7502ecef57c1a4ff726513901646b360bc2 SHA-256: c7d33ff95f76fd66e4a601632f17aeaddf0fc1ecf33bf2454a9230e731decd42
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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 https://cafij.co.za/YmrXLWy8?keyword=best%20physiology%20book%20for%20mbbs%20pdf PDF link annotation
    • https://casabresciani.it/uploads/file/gazupipud.pdfIn PDF document text
    • http://bezagsecurity.cz/userfiles/55009990473.pdfIn PDF document text
    • http://srtprogetti.eu/userfiles/files/rujabiduziwomi.pdfIn PDF document text
    • https://insetclean.com.br/kcfinder/upload/files/65696867945.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622a63f890177---1422974780.pdfIn PDF document text
    • https://sklepbonus.pl/userfiles/file/vadanewaro.pdfIn PDF document text
    • https://demircanticaret.com/userfiles/file/87556689975.pdfIn PDF document text
    • https://cissud.eu/uploads/ck_editor/files/finomukenekatexodidopiku.pdfIn PDF document text
    • https://tedifonag.weebly.com/uploads/1/3/1/1/131164063/a5dea.pdfIn PDF document text
    • http://yoga-privates.com/yoga-privates/file/simefozesesevu.pdfIn PDF document text
    • https://i-triada.net/upload/files/resujakivenuwolax.pdfIn PDF document text
    • https://christschoolblr.in/userfiles/file/mujegivivuvojejuluvukofog.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/8d6e0bffc3a634ec8d2acaf7e6ebd8c4/5673137878.pdfIn PDF document text
    • https://trexanh.net/upload/files/32094680508.pdfIn PDF document text
    • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/5e0c087e98007f8ca5de1c4246a66be3/xojij.pdfIn PDF document text
    • http://satisfytech.com/ck/upload/files/wenedujevewasul.pdfIn PDF document text
    • https://zerorobasajegi.weebly.com/uploads/1/3/4/7/134751736/pogorugabisa.pdfIn PDF document text
    • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621ff967c201c---341633398.pdfIn PDF document text
    • https://sugopubix.weebly.com/uploads/1/3/1/6/131637077/jubogobuburakiwenuj.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 extracted file (font_00_sfnt_off0000d71a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d71a.bin)

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d71a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD71A 16764 bytes
SHA-256: 62f3c47cf2dfe70883afa75569bcc94373eeee211bb36ebde203ccb1fd079d21
font_01_sfnt_off000102cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102CB 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0001196f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1196F 11076 bytes
SHA-256: 24584a38f67c79d45b47b921a0cd66fa14ad47b42ec744ff5fe2db2ca3ce61e2

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