Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d34bb84cb8051f9…

MALICIOUS

PDF

46.6 KB Created: 2020-08-07 07:20:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4d606668f551e0a3ca02e16e2bba4eec SHA-1: a7f7c5dc52f81733a6f67509aca5794484b8eb36 SHA-256: 5d34bb84cb8051f9ba892bec5023ee9cd3f8d016ed5937202c0b06dd77885ead
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, masquerading as a document about 'Adulterants in food pdf'. Several heuristics indicate that these links lead to a redirector service, specifically 'https://ttraff.cc/pify?keyword=adulterants+in+food+pdf', which is likely part of a phishing or malware distribution scheme. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=adulterants+in+food+pdf In PDF document text
    • http://files.bkdirrectconnect.com/uploads/1/3/1/1/131163635/8783716.pdfIn PDF document text
    • http://files.pineridgepto.com/uploads/1/3/1/3/131380870/bagemaponini.pdfIn PDF document text
    • http://files.number25deli.co.uk/uploads/1/3/2/6/132680822/fbffef669020.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/1/0433/1782/1605/files/kizog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/abstraction_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/woziki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0263/4148/files/7369040498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3292/8671/files/setevebomukotebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8558/6841/files/5351040617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6001/7814/files/gepape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7309/3288/files/8438532356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/python_remove_empty_string_from_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84407481133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0674/6011/files/business_plan_executive_summary_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8604/4572/files/28162309065.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 3

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_off0000782a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x782A 5024 bytes
SHA-256: 0826ec1f3b7945994771bc00af7cd8e7c2415bdc4637508634e1417a418c5357
font_01_sfnt_off0000894e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x894E 10592 bytes
SHA-256: c571ff2edccb9b6508e1890873db215aceb306f1be9e686b8dd8784fcd0fa50a

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