Malicious PDF — malware analysis report

Static analysis result for SHA-256 834112ed1b8c3a48…

MALICIOUS

PDF

37.0 KB Created: 2020-08-21 19:33:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e61d7ae0f75f1f196fb822e7e08f315 SHA-1: cff82c82886ede9a1e428eb0bf82b4241d5f644f SHA-256: 834112ed1b8c3a48c427d10bbb052cae7650faa77eb6a941086193fd18978e69
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service designed for SEO spam and phishing. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=dimplex+quantum+installation+guide', which is identified as a malicious redirector. This suggests the document is part of a phishing campaign aiming to redirect users to 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.com/pify?keyword=dimplex+quantum+installation+guide In PDF document text
    • http://zarewise.mmzurita.com/uploads/1/3/0/8/130874222/kidavugit-kiwejesexi-lujivorega.pdfIn PDF document text
    • http://japeli.eltprodev.com/uploads/1/3/2/7/132740285/kugupipuwage-bageboto-beburunasepobub.pdfIn PDF document text
    • http://files.chicagoartizen.com/uploads/1/3/1/0/131070674/lebur.pdfIn PDF document text
    • http://files.edusteminitiative.org/uploads/1/3/1/4/131483336/2590755.pdfIn PDF document text
    • http://files.lasertoenailsanfrancisco.com/uploads/1/3/1/4/131453348/2863879.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/1/0431/5450/5882/files/5274615257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8198/2361/files/93484479850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4100/3432/files/naderataladex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1641/files/47816430520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/45638809660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5187/5494/files/padiwomeforetitawut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3407/3505/files/19764009676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5077/0342/files/carbon_family_properties.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5621/5702/files/questoes_balanceamento_quimico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5564/4823/files/91806486492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5271/9515/files/gamakisurosa.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_off00005340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5340 5376 bytes
SHA-256: 2c2ae9276815dc782db50b039fce73549fcff6eb1ef581b58bf866371251fe67
font_01_sfnt_off00006570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6570 9848 bytes
SHA-256: 347d5621bc5fa7abdd59957d8d60c84b4f1eeb49f55aa6573cd8d837b8f7775e

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