Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b219ca7cd924ba5…

MALICIOUS

PDF

84.6 KB Created: 2021-06-25 20:57:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: eec9a6e9f33494a7ebce4de6868ae954 SHA-1: 76e4e70652b488191b3af6bddce82d94ccf34340 SHA-256: 9b219ca7cd924ba5031341ce1d12f6c8ce3c46982c3e40c7372db8017a98fd3b
156 Risk Score

Malware Insights

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

This PDF was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection as a phishing trojan. It functions as a link farm, containing numerous URLs pointing to compromised or disposable hosting, suggesting an attempt to direct users to malicious content. The presence of multiple PDF link farm heuristics indicates a deliberate effort to obscure the final destination and potentially evade detection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://panificioilcavaliere.it/userfiles/files/97857212548.pdf In PDF document text
    • https://beyondpins.com/calisma2/files/uploads/pafinadoveresixebumoboza.pdfIn PDF document text
    • http://hysansam.com/fckeditor/userfiles/image/gufep.pdfIn PDF document text
    • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609c9dc6bb3cc---17098665100.pdfIn PDF document text
    • http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16097970850c67---jamuximisi.pdfIn PDF document text
    • https://zlatartopalovic.rs//files/mopebodumoxepav.pdfIn PDF document text
    • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16084898cb3fdb---vifixedogu.pdfIn PDF document text
    • http://skncn.com/u/files/sudokupemadekufowagu.pdfIn PDF document text
    • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/e7435adfcf288178e5d1e29171c5fee9/10509288483.pdfIn PDF document text
    • http://zhengfutz.com/v15/Upload/file/2021515746312624.pdfIn PDF document text
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a38e5178fe0---47444571161.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/90588029850.pdfIn PDF document text
    • http://naucseto.cz/storage/31695355173.pdfIn PDF document text
    • http://planbmedia.hufiles/bumadiruz.pdfIn PDF document text
    • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/b78f626f43936eead014cc7360c2dfb5/gotowizajikeluv.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5106186bb---83744934603.pdfIn PDF document text
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d5569258c---63909692813.pdfIn PDF document text
    • https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/9b0fc4e8f03d390c711b374dd03d1c44/jasipipemi.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/39e92ae174d61649d5f0b4ca51762ecc/94354924748.pdfIn PDF document text
    • https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/7rf0l6agjkot6uu83pm04im1no/nuvopolipox.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160712252e7e95---9723078163.pdfIn PDF document text
    • https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/7b41dd133801dd4cec8651ca3c522c9b/pulovuguwaweb.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=angie+chords+rolling+stones+acousticPDF 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_off0000e859.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE859 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001006b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1006B 16960 bytes
SHA-256: f4880f288e78fb6b55c95a03199a1c07f33698397a2a1deac1fc938225c3b512
font_02_sfnt_off00012cb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CB2 10728 bytes
SHA-256: a821ee5cb6654f211be06a55935041ed1515fe603d1fa6e745747f62c8b18bf8

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