Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb5a8b29c5721603…

MALICIOUS

PDF

44.1 KB Created: 2020-08-03 17:16:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2b88a8d698ee6cfe1f346627062a93d0 SHA-1: 05b4478aa76aff5600fde9d0a6fb838b5f09016d SHA-256: eb5a8b29c57216037da47d09013aa5623721127c3ccd9fef3f728aefc6693a03
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, which is also present in the document body. This link, 'https://ttraff.ru/pify?keyword=harassment+at+workplace+pdf', is designed to lead users to malicious infrastructure. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic to increase visibility. The ML classifier strongly flagged this PDF as malicious.

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=harassment+at+workplace+pdf In PDF document text
    • http://files.padermpa.org/uploads/1/3/1/1/131164273/satuk-nifosetiwaxux-dexogupevofuwud.pdfIn PDF document text
    • http://files.en.lflplatform.net/uploads/1/3/1/4/131409463/wizupofonaxa-nilipeboji.pdfIn PDF document text
    • http://files.waterswheel.org/uploads/1/3/1/3/131379381/c3546f64984d7a.pdfIn PDF document text
    • http://files.euroconferences.org/uploads/1/3/1/3/131380773/fupuxomejo.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/1/0431/7426/4996/files/sazetevumure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2512/9894/files/28596697347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6142/7867/files/janekuviribajekapop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8960/0414/files/93751055158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7686/8510/files/96839540077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5085/0709/files/70951509810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0361/7173/files/92310268220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6837/2632/files/47117788432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5723/1525/files/32921018278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2438/2114/files/subaretutide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2228/5976/files/ketazumonis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/33904657398.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 8

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_off00006ebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBC 5416 bytes
SHA-256: ac840ae64587728331dcfdb334675ab748441e80aabc21dfb1824e6932d7959c
font_01_sfnt_off00008127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8127 10124 bytes
SHA-256: 851776ae35e37ac686546f796d62722c54cbc3cf73dc1a849a78a00c33cea890

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