Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a1f5a34cd92d0c2…

MALICIOUS

PDF

71.7 KB Created: 2020-08-21 08:45:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a9a31a24ac8e2a8f453fb947fd0454b SHA-1: 4387721c0ba45f8c931ae6f5f97811485931a8bf SHA-256: 6a1f5a34cd92d0c2958c30087125aad6cba586c032e3cb21da1eb017ba6832da
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=adalat+bula+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous links to Shopify-hosted PDFs indicates a link farm strategy, likely to obscure the malicious redirector and improve search engine ranking for malicious content.

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=adalat+bula+pdf In PDF document text
    • http://files.mbapierce-rex.com/uploads/1/3/0/9/130969820/nodidagibenekedut.pdfIn PDF document text
    • http://tisiri.creameryartscenter.org/uploads/1/3/0/7/130738721/303570.pdfIn PDF document text
    • http://jasig.askmarct.com/uploads/1/3/1/6/131606289/3272617.pdfIn PDF document text
    • http://files.lifewithsqueaky.com/uploads/1/3/1/4/131454986/7902783.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/1/0431/1220/2389/files/60776972726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4868/8033/files/lugetesiwijamapetogosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30549310566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1057/1940/files/avant_propos_d_un_rapport_de_stage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2832/4257/files/nevagonukuvenaminajeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3695/8106/files/fugonexifijawezojefuxuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5080/3099/files/airserver_64_bit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/83015378291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5013/1878/files/63866144382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2063/9646/files/authorization_letter_sample_to_claim_report_card.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_off0000d090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD090 4892 bytes
SHA-256: 500f91c414ad8db8356b9b6ac4187cefa2044fd0dcd9b922e6566ca343693c6a
font_01_sfnt_off0000e14d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE14D 16184 bytes
SHA-256: 9be3f2e030c06887efc3fea75e923c4628b94fb60d633610b183f9d5b8ff064d

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