Malicious PDF — malware analysis report

Static analysis result for SHA-256 2859c996d87c17d4…

MALICIOUS

PDF

47.0 KB Created: 2020-08-24 09:54:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 15d466152fbf8bba5b6891881e74f17b SHA-1: d31898e88a5064368644dc4b4d38f538dd697d3e SHA-256: 2859c996d87c17d4df5ccbd484c872a72ac308305538f1bfd2b4dc7c70dde85b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.ru/pify?keyword=brca+gene+testing+nice+guidelines, which is likely used to funnel victims to further malicious content. The document body itself contains garbled text but includes the malicious URL and several Shopify-hosted PDF links, suggesting a link farm or phishing 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.ru/pify?keyword=brca+gene+testing+nice+guidelines In PDF document text
    • http://jugodujo.laoshierinmarkle.com/uploads/1/3/2/8/132814930/1331954.pdfIn PDF document text
    • http://taluludeb.bossladycharity.com/uploads/1/3/1/6/131606289/7438040.pdfIn PDF document text
    • http://files.acceptancegroup.com/uploads/1/3/0/7/130775592/84b57c479e32ba.pdfIn PDF document text
    • http://files.erinbowlen.com/uploads/1/3/1/4/131483371/6486198.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/1/0438/6599/7472/files/wawapofokogetukaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0630/4153/files/bcece_medical_certificate_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8933/files/ukulele_canon_in_d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0703/2990/files/vesamuzofoxadikedifowunab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3811/7781/files/adobe_reader_download_offline_installer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5435/1015/files/47098759290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9980/6113/files/49900431968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6845/6102/files/kudebuwilifoguduju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0345/2326/files/icarus_paradox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7069/3284/files/chalk_uchicago_edu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8062/9913/files/36106631420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bobidaxida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6853/7497/files/zekidase.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 2

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_off00007a8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8D 5156 bytes
SHA-256: ab5ade7c933b3916bbc7ddf72a9d26a35eb607298983fce2dab9115b5832433e
font_01_sfnt_off00008c1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1A 10340 bytes
SHA-256: 019b862ccd93f0167dfe00d408357dc5869a588ed053abc19d615136cd49791b

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