Malicious PDF — malware analysis report

Static analysis result for SHA-256 348c83303fd60254…

MALICIOUS

PDF

45.4 KB Created: 2020-08-04 13:02:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ced82d3cd27c61ed5eb2e3482c3200c SHA-1: d7b1d98ab6b590220a7aebb180842cb94a3fa39b SHA-256: 348c83303fd60254c64f9a958575c88185664434e78846e344593d79bce23114
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to known malicious infrastructure. The document body text, though heavily obfuscated, contains the string 'Robotics engineering books pdf' and the malicious URL, suggesting a lure to download potentially harmful content. The primary malicious URL is https://ttraff.ru/pify?keyword=robotics+engineering+books+pdf, which is likely used to redirect users to a further malicious destination.

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=robotics+engineering+books+pdf In PDF document text
    • http://files.owl-valley.co.uk/uploads/1/3/0/8/130813768/2285015e4d0e.pdfIn PDF document text
    • http://files.wellnessworksinschools.com/uploads/1/3/0/9/130969370/vawigilajazojimexo.pdfIn PDF document text
    • http://files.lesleehampelphoto.com/uploads/1/3/1/4/131406744/gixukemesolage_bizoxaxijanaxud_xabobe.pdfIn PDF document text
    • http://files.wuxiangyue.com/uploads/1/3/1/3/131384424/dodamumuvus.pdfIn PDF document text
    • http://files.uvicscuba.com/uploads/1/3/1/4/131437504/4016231.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/1/0428/1656/9500/files/59359577723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/jujipuveraxufumati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0412/5599/files/84960116156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9083/6632/files/xikagotajadolejuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/2283550224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5181/7879/files/84259663388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jotinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1293/2255/files/free_hawaiian_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1438/1980/files/52268263173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4211/9592/files/centrales_electricas_en_bolivia_en.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6428/5601/files/vigesudenagefexanuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5685/6230/files/p90x_workout_calendars.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_off000073d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D3 5292 bytes
SHA-256: da25fc4126e528454b05b620a28cbef646df8e9b2c64dff4b9e3e4cd3f4c547c
font_01_sfnt_off000085e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85E7 10272 bytes
SHA-256: 08a4af0a9db5290e65dd0609f1ad78c9374afabde502eee82c7a52df5c918c12

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