Malicious PDF — malware analysis report

Static analysis result for SHA-256 e510712d77bced62…

MALICIOUS

PDF

86.4 KB Created: 2021-04-30 07:08:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bf5d34cc6a20e3b813352155b79494d6 SHA-1: 2b4a917e417f615f1900cdf69bed81244311d708 SHA-256: e510712d77bced622edcdf3867d0c3cd39ec34ceb71b1609ffddf44423185fc2
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many of which are part of an SEO link farm, suggesting a phishing or spamming operation. The primary link, 'https://zajinet.ru/strik?utm_term=sanyo+42+led+tv+price', is identified as a redirector likely leading to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://zajinet.ru/strik?utm_term=sanyo+42+led+tv+price PDF link annotation
    • https://s3.amazonaws.com/mexesazaxasa/pitak.pdfIn PDF document text
    • https://cdn.sqhk.co/zebenane/ccvvheB/22293317926.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/74588421155.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/72882415439.pdfIn PDF document text
    • http://sutovuresas.mygamesonline.org/adobe_premiere_pro_cc_2020_classroom_in_a_book.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/facebook_ads_report_a_problem.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/brooklyn_s_finest_movie_480p.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/corrugated_plastic_sheet_home_depot.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/raparuromumonidifiwik.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/velleman_how_to_prove_it_3rd_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/bulalowisu/291328021.pdfIn PDF document text
    • http://joxezorov.mywebcommunity.org/86946446782.pdfIn PDF document text
    • https://cdn.sqhk.co/xetilibul/iicNbgh/free_dragonfly_illustration.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://034618a9-9b39-4f41-ad18-95bca1d1c80b.filesusr.com/ugd/48d9a1_0d8c42be667e437cb756e822f1facd46.pdf?index=trueIn PDF document text
    • https://4bd9ed84-c80b-4837-bb2f-b1353ebfd8aa.filesusr.com/ugd/5a1791_ae967a37e3ed4a109e85d105c57f77f7.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b42dc24-af47-4f1a-85cc-e772fb40db74/taylor_gs_mini_for_sale_near_me.pdfIn PDF document text
    • https://6f465708-eb37-4ee2-8658-ebeec6cd93ea.filesusr.com/ugd/4bb103_623d60eb4f8244cd9f08489f3c786aa1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/203352b2-bf12-47c9-b84c-f845c11e971e/23418840631.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af735372-61e6-4e83-bf1b-ce1468eb069e/74579840451.pdfIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/48828308785.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af79f28c-0d79-44a6-be1c-2e83582ebde9/50311310649.pdfIn PDF document text
    • https://15319a82-8c66-4906-b3c2-464277991f2b.filesusr.com/ugd/070acf_de83dbefdde54870a81fb4ce5a9d8995.pdf?index=trueIn PDF document text
    • https://0d555108-1732-4721-8d72-76d747b2053a.filesusr.com/ugd/1b0481_641acfa65dba40ea9c049660751dbad7.pdf?index=trueIn 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://scripts.sil.org/OFLIn 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_off0000fbd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBD2 5376 bytes
SHA-256: 4a69630c9c742d42ee826696cac9bb34a5399e2e2b412d1c64d87997994dbe4e
font_01_sfnt_off00010e42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E42 11952 bytes
SHA-256: 16811f10d4a76a51f7076ce621731cd181dcc949b758b93cc29161f4f528b2d2
font_02_sfnt_off000136c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136C3 16060 bytes
SHA-256: 10572f3a10760712fbb8352e098d229fd21f48763f52fb6fd9385479015ceb58