Malicious PDF — malware analysis report

Static analysis result for SHA-256 af269f8d155e9411…

MALICIOUS

PDF

91.1 KB Created: 2021-08-01 13:43:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 72ac469439798a4523009965cc470b34 SHA-1: edb4f7e04138cfd6d7e22190714240c763285757 SHA-256: af269f8d155e9411075f1a9d4693e2c033be021685133ba38023613b1ee8c884
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • 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://crewmak.ru/uplcv?utm_term=famous+19th+century+literature PDF link annotation
    • https://serini-cloud.pl/uploads/editor/file/mejofugoxutumoxeluxefotok.pdfIn PDF document text
    • http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/4f973c7f3dc4b281267eb4dc59446fde/48554927770.pdfIn PDF document text
    • http://pujcovnanaradi-tvarozna.cz/userfiles/files/86740776923.pdfIn PDF document text
    • https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/70f4h8qp277vje5ensh8a7nbeu/40675339696.pdfIn PDF document text
    • http://beerskiboot.com/img/upload/file/78500062639.pdfIn PDF document text
    • https://laser123.com/geektic/files/45145710497.pdfIn PDF document text
    • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160aa593695fd5---jawulodetuvuledifurizi.pdfIn PDF document text
    • http://year-c.com/upload_fck/file/2021-7-12/20210712213423940786.pdfIn PDF document text
    • https://www.sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/16090e01beb0a0---27966433224.pdfIn PDF document text
    • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/a681e660cffb9372e6564f0277f95fc8/64559016731.pdfIn PDF document text
    • http://mspchicagolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/6787969802.pdfIn PDF document text
    • https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160df5acb612d2---pireroragab.pdfIn PDF document text
    • http://cke.hk/userfiles/83315863745.pdfIn PDF document text
    • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a30ba7b5b93---33869010563.pdfIn PDF document text
    • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/17fec42748963fc7ddc352281c3f4241/boxinunefenevugiwevapexak.pdfIn PDF document text
    • https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/b2f34b2dcb5aeab74e8670e3c48ac238/89255469084.pdfIn PDF document text
    • https://golf-tout-terrain.com/publish/page/file/kojusam.pdfIn PDF document text
    • http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071d657dbdc4---lutuzizojametikexiniguvu.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/xapelaputoxalirilovawib.pdfIn PDF document text
    • https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af46a4d3399---47199835982.pdfIn PDF document text
    • http://hotstamping.pl/files/file/sozigufevezus.pdfIn PDF document text
    • https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/7ee5ee5frgv04rcho1lco6lrjg/54587226936.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 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_off0000fe46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE46 17360 bytes
SHA-256: 20262f49e9c8f2c10a1333ed53d3668bf48de3a1434d5d0f8e3af63cd0236cfa
font_01_sfnt_off00012b97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B97 10904 bytes
SHA-256: b27d60247db6dab86d245be3fdc76bbf7da8a1c8785513cdafc7aa0ab95dbc82
font_02_sfnt_off000144bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144BF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1