Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2c26a04872af199…

MALICIOUS

PDF

45.6 KB Created: 2020-08-11 02:18:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c9e5e54ca3536f0a93e1e0d06852581a SHA-1: 2b19568e20ee8a53dbc7f626839f44e987952e56 SHA-256: f2c26a04872af19901d94c309029fc787a075ef827e4c04b33ea549f7e246151
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a machine learning classifier and contains a critical heuristic indicating it links to a known malicious redirector. Additionally, it features a large number of external PDF links, many hosted on Shopify, suggesting a link farm for SEO manipulation. The document body contains garbled text but includes the URL for the malicious redirector and several Shopify URLs.

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=importance+of+business+communication+pdf In PDF document text
    • http://vibol.sayyestothecake.com/uploads/1/3/2/7/132710657/ropazisugaxeru.pdfIn PDF document text
    • http://files.georgeayee.com/uploads/1/3/1/3/131398195/dulofewedol-wutivepekatedi-saliwagoxoraz-wipuribamasada.pdfIn PDF document text
    • http://zutafitop.dbehrends.com/uploads/1/3/1/0/131070493/perat.pdfIn PDF document text
    • http://vivemoso.churchstreetmarket.com/uploads/1/3/1/8/131858661/xewezonaxo-zikuvo-wamafidamefasaj.pdfIn PDF document text
    • http://wusemado.cksweets.com/uploads/1/3/1/3/131398140/06f231d8b.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/1/0430/7045/5957/files/the_acquisitive_society.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3428/0099/files/sam_feldt_show_me_love.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8670/8890/files/86258915897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9748/9572/files/atago_abbe_refractometer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2353/2195/files/13239428291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4185/7448/files/68478061607.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0219/9196/files/difference_between_absolute_poverty_and_relative_poverty.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1362/7294/files/wizuganegoxovusulof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/suwimosekogitimona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6647/5174/files/laboxuxon.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 5

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_off000075f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F2 5344 bytes
SHA-256: fe76d322ea365eeb01661e9caa82c021fe8ae43f56a474bb5f932b5f027379bc
font_01_sfnt_off000087f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F0 9956 bytes
SHA-256: 4318fd70a13ae87f7c3cb400bc44aa6ccfc81104daf995e8379c7e240114c2f2

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