Malicious PDF — malware analysis report

Static analysis result for SHA-256 daf9241f0bfb96ee…

MALICIOUS

PDF

76.2 KB Created: 2021-07-05 07:05:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 10cd3f322dd0a6fc0953d84c7aaa0258 SHA-1: 6932705dd71d6a5246f76abc9a9bf678c0bae06d SHA-256: daf9241f0bfb96eefdc4a0733bbe1f1865aa13dde8847be311a643e05048b571
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links pointing to various domains, many of which are hosted on compromised CMS upload storage or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9827

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://aydin-elektrik.com/resimler/files/61450478709.pdf In PDF document text
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a0926e33192---57949523497.pdfIn PDF document text
    • https://alshaabcoop.com/userfiles/file/mesodenetaku.pdfIn PDF document text
    • https://aftaplan.com/works/peepsparty/html/upload_files/file/dusadasujakesezogib.pdfIn PDF document text
    • https://aftaplan.com/works/peepsparty/html/upload_files/file/79528559701.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16094a6523b37f---29132012658.pdfIn PDF document text
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/baef78721b220010c908d7ddd70629a5/20017376658.pdfIn PDF document text
    • https://fereshtegan.net/basefile/fereshtegannet/files/10950625326.pdfIn PDF document text
    • https://narimasu-chintai.net/jcfiles/file/rozudowedipub.pdfIn PDF document text
    • https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/5rd35fju2t7tu9k9hm0blijaag/99657417671.pdfIn PDF document text
    • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/ollfqnk4f1fbri9aoapqhmeb90/76107033632.pdfIn PDF document text
    • http://zonazero.es/userfiles/file/10413898725.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a99717729b1---51994371377.pdfIn PDF document text
    • http://internationalnetworksolutions.net/files/musotivufa.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/vp788bu03hvhngdn64fq9sell3/xusigasikamufawoweparezi.pdfIn PDF document text
    • https://pharmnet.cz/ckfiles/files/files/46540450054.pdfIn PDF document text
    • https://ckmusicdesign.nl/userfiles/file/nogipotanidipu.pdfIn PDF document text
    • https://deesudcoolingtower.com/userfiles/file/11988718590.pdfIn PDF document text
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160b080bcbe98b---99628338569.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a61d0cfa13---gixiw.pdfIn PDF document text
    • http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081135c66361---zinunenadusap.pdfIn PDF document text
    • http://vankouwenenmastop.nl/UserFiles/file/2769657859.pdfIn PDF document text
    • https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/370ec55e54f9591eda6574a53ba0bbfe/xotorozukiremumev.pdfIn PDF document text
    • http://bajcsidavidfoto.com/_user/file/84646499997.pdfIn PDF document text
    • https://cuisinescartier.ca/upload/editor/file/65396598690.pdfIn PDF document text
    • http://abpaluso.com/upload/file/69182260906.pdfIn PDF document text
    • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/ed98b74e10d54d2778929b32e35a85c9/30147764606.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=red+lion+noodle+bar+plumsteadPDF 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_off0000c705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC705 10836 bytes
SHA-256: 5639157e73d6f817f2bd96195b1be1643402c8f0257dfed7551179daae6d659f
font_01_sfnt_off0000dfc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC4 16912 bytes
SHA-256: 78d8b148b5abeed3692bdeb84d094d8691672862844205722601242774f27ac2
font_02_sfnt_off00010c07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C07 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1