Malicious PDF — malware analysis report

Static analysis result for SHA-256 29bc9e05bb47af60…

MALICIOUS

PDF

41.4 KB Created: 2020-08-22 18:22:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58380108d3989919a3836da3a967f5a6 SHA-1: aee1ebb5bb888edb3a385a4f9aecc90b4304b14e SHA-256: 29bc9e05bb47af60632fc5e557e5041984b6abd1fcf7d5c4884568abccedcdd5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=aptamil+pro+expert+pdf+dm'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains this URL and numerous other links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute the malicious PDF. No scripts were extracted, limiting the analysis of further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.ru/pify?keyword=aptamil+pro+expert+pdf+dm In PDF document text
    • http://files.backyardheavens.com/uploads/1/3/1/4/131438843/cf1a9f9c27590ef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8910/7869/files/2507874260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5646/3014/files/arabic_alphabet_colouring_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8519/3621/files/sime_darby_annual_report_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9691/5616/files/cadillac_cts-_v_2011_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/39734248508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4146/3189/files/tufomonet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9107/3947/files/58555159085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6638/3768/files/wadakepududetarunegonunex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6179/6248/files/zarorodovatijifumoxunix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/memuwazewuremevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3711/1973/files/vesuwojejuzizimulixileze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4327/4402/files/biblioteca_del_evangelio_sud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7505/1424/files/12032410060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7963/1012/files/32205953159.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://scripts.sil.org/OFLIn PDF document text

Related samples 4

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005adf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ADF 5068 bytes
SHA-256: 32fab1fda4bca239bf8c6234c9d0b28c4cba204c2db4bbd2eeacbc0c69ea2f7d
font_01_sfnt_off00006bff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BFF 14472 bytes
SHA-256: 22846055bf1ebe1d7493ace3917ed5bd4e1ca5fdaf0f9d5365fd73067330b5e3

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