Malicious PDF — malware analysis report

Static analysis result for SHA-256 510f980a1360eef2…

MALICIOUS

PDF

102.8 KB Created: 2021-06-30 17:47:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 36fd89670753a823015fdf06fdab26da SHA-1: 1c352d2183a2eab6398878d8b14f99f9a34ad13f SHA-256: 510f980a1360eef2507b31f1c951fdcd2154f7a33af35af36b99c2bbefa3084d
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs, many pointing to compromised websites or disposable domains, indicating a link farm or phishing attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to redirect users to malicious content or phishing pages. No scripts were extracted, but the URL structure and heuristic firings are sufficient to infer a malicious purpose.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9888

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 http://absolutelyneon.com/userfiles/file/vanevo.pdf In PDF document text
    • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/tb6cig83o9ckdfteugrbf1qt16/47387923413.pdfIn PDF document text
    • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/70acfefgjcrh36itoof65vgiam/97645496601.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608b9318599f9---50153877562.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608bfe76a720c---kijuwibobaxule.pdfIn PDF document text
    • https://genesislighting.net/wp-content/plugins/super-forms/uploads/php/files/2769474819aa6f9915a6ce6d7f5e494f/jotila.pdfIn PDF document text
    • http://hyderabadibiryanicorner.com/admin/images/file/52808298261.pdfIn PDF document text
    • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/3uiliadi2slk6vlenupejob590/77595562535.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f83df25250---jiwavote.pdfIn PDF document text
    • https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/6evtmuh9eg1auq6t46243r0u88/jodisulofegavotok.pdfIn PDF document text
    • http://quatanggiabao.com/images/uploads/files/98956652099.pdfIn PDF document text
    • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160791e295709b---zadarikiputozol.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/7171dc0c7b2be2b7625bd92fb36e3066/44121918278.pdfIn PDF document text
    • http://myxroad.com/upload/userfiles/file///4127661348.pdfIn PDF document text
    • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/067af70932d5fdc4db9ea2e0b60761b7/rovijigevas.pdfIn PDF document text
    • https://espiber.cl/images/uploadedimages/file/sebewesafunibilifid.pdfIn PDF document text
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16090f41136c7a---20745688712.pdfIn PDF document text
    • http://digitalpolicycouncil.com/imagenes/file/18662625879.pdfIn PDF document text
    • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b98f72b98a5---wevukawivuw.pdfIn PDF document text
    • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16085063315e79---77013560436.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d200fb6661---xopififimodetogezomo.pdfIn PDF document text
    • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/8ac40fe9dbb9eb25cefdeaad794e593e/2335782978.pdfIn PDF document text
    • https://burlingame.com/wysiwygfiles/file/sevanevobimujelenofuk.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=project+report+on+axis+bank+pdfPDF 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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000116ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116CE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00012ee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EE5 11032 bytes
SHA-256: e4e3584a05242c039dae5b5cf9d0d1bb65bf2498fe96b7f8a9b892fd2414e19d
font_02_sfnt_off0001486c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1486C 6252 bytes
SHA-256: db1b80d1a83565fdc39efada828e293cd2210fb162b01ccba5265540e40186e8
font_03_sfnt_off00015e04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15E04 17860 bytes
SHA-256: 46b067887057c4ebf310e9813ab13ca45204979f4265861ad58b4b5276fc8d3a

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