Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ea22e0d788e18f…

MALICIOUS

PDF

96.3 KB Created: 2021-08-12 17:16:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: f0aa0b4b8824e19f5653587c7e971771 SHA-1: 61dcf61c9543aede093a720a921033cfcc3ffd67 SHA-256: d3ea22e0d788e18f8380873162dfa66992a0f48ef848aa4de39552e97c5a2061
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://maychamsocda.vn/images/userfiles/file/nanaza.pdf In PDF document text
    • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/lepldgovbhgnd9c2lk00agpfbe/40751077231.pdfIn PDF document text
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608cb2db060a6---vebevarolev.pdfIn PDF document text
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b51b16088be---25677944354.pdfIn PDF document text
    • https://bmw-zona.ru/uploads/file/94764434390.pdfIn PDF document text
    • http://osrclass1967.com/clients/8/84/84e84eb3bb32f45446e669e24fea3ebc/File/82663626041.pdfIn PDF document text
    • https://searchlink.org/userfiles//file/pesiterilozazotewosavi.pdfIn PDF document text
    • http://almawred-sy.com/files/adminfiles/files/jenenakodibakul.pdfIn PDF document text
    • https://wagaskar.com/media/wofinat.pdfIn PDF document text
    • http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085b21fc85af---poruzesapanetofi.pdfIn PDF document text
    • http://codefon.hu/js/ckfinder/userfiles/files/tatabiwu.pdfIn PDF document text
    • http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/bvclk36ch82c89dh5lpjboddh7/39087265776.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/na1ia87jekudp1fn5tlio7crrf/2701440002.pdfIn PDF document text
    • http://ccforum.kr/uploads/file/1623467010.pdfIn PDF document text
    • http://rinsacars.com/files/others/67360546364.pdfIn PDF document text
    • https://citronel.com/userfiles/files/71536102101.pdfIn PDF document text
    • http://starlightcelebrates.ca/clients/4/43/43e9139217482d7666ce300faf566241/File/26719427667.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/vunofaxelekoniwujuderabol.pdfIn PDF document text
    • http://clinicaveterinariacene.com/userfiles/files/tubowipiwazaxokow.pdfIn PDF document text
    • http://hurtmar.pl/Upload/file/lofuniwararunodujugagil.pdfIn PDF document text
    • http://hutergroup.de/userfiles/file/pozumuveximabapuzupalose.pdfIn PDF document text
    • https://protrialse.eu/files/files/napolufulolakonupemubina.pdfIn PDF document text
    • http://okulsanmalatya.com/imgup/file/74590675987.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=logitech+z+cinema+manualPDF 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_off00010dc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DC5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000125d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125D7 23260 bytes
SHA-256: 3dab068ddaae5d34f2c148db9a312b701106f3a5b61467f189b2c65240a753a4
font_02_sfnt_off00015bae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15BAE 10528 bytes
SHA-256: 14cf0e026302f44638cb5ecb92f7810246717825e2d64ae7946efb0d33e859c8