Malicious PDF — malware analysis report

Static analysis result for SHA-256 be57d90c85c190fd…

MALICIOUS

PDF

49.3 KB Created: 2020-08-06 10:09:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7fa19b879732e822091593d2f88a4e61 SHA-1: e3f5e358abe6fab6ff2eb26ef43843ed89d29a69 SHA-256: be57d90c85c190fd2268e8b321dbcf50d24a12d6ec502097f0d5700dd022d096
194 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to Shopify domains, but one critical link directs to 'ttraff.com', identified as a malicious redirector. The document body, though heavily obfuscated, contains the string 'Botany notes pdf for upsc' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a link farm and a malicious redirector indicates a phishing or malware distribution attempt.

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.com/pify?keyword=botany+notes+pdf+for+upsc In PDF document text
    • http://rofax.crueltheatrecompany.com/uploads/1/3/0/7/130775129/pujaxodezekubezun.pdfIn PDF document text
    • http://files.ohmylashuk.co.uk/uploads/1/3/1/3/131398268/zigolawamu-lupaxa.pdfIn PDF document text
    • http://files.mccordchapman.com/uploads/1/3/0/7/130738889/3236573.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/1/0429/5573/5193/files/18126962834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/zozaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8306/files/book_wings_of_fire_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/vifurikebovomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0816/2974/files/72914040838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9718/5701/files/gexegave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1268/4967/files/29078634794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6327/0815/files/83520226997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6925/1487/files/lekakubuzagifajepilokunin.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_off0000833b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x833B 5268 bytes
SHA-256: c1882d2d82c121ecd29692ec071c890e613b69483cafef18a9880143895eee8a
font_01_sfnt_off00009544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9544 10244 bytes
SHA-256: c2f42f3f3702198708f582746a01d098203163617f8a76f952e1ac1e89826e28

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