Malicious PDF — malware analysis report

Static analysis result for SHA-256 706ad53e07a1e16e…

MALICIOUS

PDF

44.6 KB Created: 2020-08-08 09:21:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62ed606097b893e78d3fd51d27cc26a3 SHA-1: 3debc5b79442aa82762c6fb51537041171ade7a0 SHA-256: 706ad53e07a1e16ecdfd1321c1a84aedd619ce89478f52323e08c0b03d362616
194 Risk Score

Malware Insights

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

The PDF contains multiple links, including one pointing to a known malicious redirector infrastructure at `https://ttraff.cc/pify?keyword=exceptional+learners+13th+edition+pdf`. This suggests a phishing or malware distribution attempt, masquerading as a free download. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=exceptional+learners+13th+edition+pdf In PDF document text
    • http://files.dianalara-somatics.com/uploads/1/3/1/4/131438150/sinuboxusulogigutese.pdfIn PDF document text
    • http://files.womensmetgolf.org/uploads/1/3/1/8/131871740/8368304.pdfIn PDF document text
    • http://files.artlynchactingcoach.com/uploads/1/3/1/3/131380868/tagaxe.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/1/0437/8466/7287/files/risk_assessment_steps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1143/5670/files/treinamento_de_assertividade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4818/0634/files/vorofepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/6986/9975/files/automated_trading_algorithms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/belisutej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2796/9686/files/vifatix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2857/3334/files/boogie_woogie_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2623/6063/files/lebinetalerikefumak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2190/0696/files/dd_2896_1_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/16617435323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7495/3120/files/zafolukixorawax.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_off00006f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F47 5484 bytes
SHA-256: fa48c17f82490fce4a89bb166c74d41aea2f62745d5eccf9903e9316a4b41108
font_01_sfnt_off000081f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81F0 10412 bytes
SHA-256: 8c65a5bdb4a2a4e7445ed3082fe8804b80cdd5549485e50ba4ee23ea04fbe9c2

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