Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a34ea2571e50e4d…

MALICIOUS

PDF

38.6 KB Created: 2020-08-22 00:48:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4739965bd59f090f3581229e313d982e SHA-1: 928e433bb8dd7697dc6aef44f5cf697944c41c90 SHA-256: 7a34ea2571e50e4d1c469ce6e96d85c06018abb068f42074114e86d7cf0261d5
194 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to a malicious SEO link farm, specifically `https://ttraff.ru/pify?keyword=bmw+x3+2017+manual`. The document body, though heavily obfuscated, appears to contain the lure text 'Bmw x3 2017 manual' and the malicious URL. The heuristics indicate the PDF is a redirector and part of a link farm, suggesting a phishing or scam 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=bmw+x3+2017+manual In PDF document text
    • http://files.neverweatherband.com/uploads/1/3/1/4/131437085/parex.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/1/0428/7679/7081/files/bimuwine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/7554/6791/files/paite_customary_law.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5552762143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dipipopiluniwewikojidil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5254/5701/files/tesis_acoso_escolar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1104/7575/files/nutaxumejewozuvisiledero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3197/0460/files/tamil_reading_practice_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8524/8165/files/24367135380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3206/8775/files/pituvesarunetavabukotoxu.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_off000057f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57F0 5336 bytes
SHA-256: 0176774bcd612d285f2fdfb8bc2cac542ff5722ba12258e112f258efad1131ec
font_01_sfnt_off00006a1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A1F 10700 bytes
SHA-256: 4df06813d746cdb0a9889b434c5c476e11f3af95f349e480e1d449dbd1d4e97c

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