Malicious PDF — malware analysis report

Static analysis result for SHA-256 49e42622e01050bf…

MALICIOUS

PDF

77.2 KB Created: 2021-06-26 09:24:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 7799724f878d53a3a21a2e4dcd992828 SHA-1: ee5ec141314f2a506bf23a9063b0e986eb21576c SHA-256: 49e42622e01050bf23f699fcc6c87a6c881c8d961e090c9bff55fbfb9cee7798
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed for malicious redirection. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the nature of the URLs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic point towards an attempt to lure users to external malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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://drafthe.ru/uplcv?utm_term=thomas+calculus+early+transcendentals+14th+edition+solution+manual+pdf PDF link annotation
    • http://alexanderkanevskyartistbiography.com/clientMedia/file/jajimelokezulakowuputem.pdfIn PDF document text
    • http://interiorconsignments.com/media/file/85736686340.pdfIn PDF document text
    • http://markone-tools.com/upload/files/wulitidit.pdfIn PDF document text
    • http://soft-pro.hr/upload/datoteke/64405942820.pdfIn PDF document text
    • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/982c9ca346c507e0e1c35d5666e84046/mupikafonanufapasikij.pdfIn PDF document text
    • https://thetitangroup.ca/wp-content/plugins/super-forms/uploads/php/files/2ce978f10f8da59a22e624f6088e0d22/69862956447.pdfIn PDF document text
    • http://reguitti-engineering.it/userfiles/files/filusizuzuwefixomuterokes.pdfIn PDF document text
    • http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a3e81fef01f---tenijedezuvume.pdfIn PDF document text
    • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/d3f80b02cdcd663415bf714ba6c3adc6/dabejenazapa.pdfIn PDF document text
    • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607166aa56313---jusodazitovonimil.pdfIn PDF document text
    • https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/16071b9a41b8b1---98793260608.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0a549e94c---1531850373.pdfIn PDF document text
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/57496ebb58981a0c4f6ba6cd3c28e698/27569489309.pdfIn PDF document text
    • https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f3a996b0f9---maruxelotowovuwem.pdfIn PDF document text
    • http://nuraski.pl/wsg/userfiles/joter.pdfIn PDF document text
    • http://sanitaerprofi.ch/fckeditor/editor/images/file/bixiraxijexiwetowiwaje.pdfIn PDF document text
    • http://acmemask.com/upfiles/editor/files/pobaxuzuvidane.pdfIn PDF document text
    • http://parishad1925.org/ckfinder/userfiles/files/nejadidanemutavom.pdfIn PDF document text
    • http://harchovyk.com/userfiles/file/xamakuluwalorer.pdfIn PDF document text
    • http://point-grey-1970-grads.com/clients/f/fe/fe7686cf254963525dc0bd811951f15e/File/53213238152.pdfIn PDF document text
    • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608188e07a280---xupew.pdfIn PDF document text
    • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160825ee427e95---12982932844.pdfIn PDF document text
    • https://lapdonline.org/file/17801856892.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_off0000c93a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC93A 16772 bytes
SHA-256: ab6d89fded08fded1b4a648ade57e1ba1716355082c781eed94ef20bc37bc615
font_01_sfnt_off0000f495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF495 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010cac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CAC 11192 bytes
SHA-256: 78cda0433541d3a12a252c58801a99f7b4e3bb9a65c3b1e07038e397685870eb

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