Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0f214402aeed7ce…

MALICIOUS

PDF

43.5 KB Created: 2020-08-21 23:06:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3abc8085bcb4a912843b3e52a25fb9ae SHA-1: c4d6d3d8ee1698167d4126f65cf32aee47d78c86 SHA-256: e0f214402aeed7ce18c60b7f71da099b59bfd99ed8e2e37756a41bfed4cd1e8a
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of these links, https://ttraff.cc/pify?keyword=christmas+maths+worksheets+ks2+printable, is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The primary intent appears to be redirecting users to malicious infrastructure.

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=christmas+maths+worksheets+ks2+printable In PDF document text
    • http://reroroduf.checkmatebook.com/uploads/1/3/1/4/131406082/kovilekerijajuzori.pdfIn PDF document text
    • http://files.artbyhelmi.com/uploads/1/3/0/9/130969426/gofadoro_vojalimubewoto.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/1/0429/2981/5711/files/amazfit_bip_english_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7410/8057/files/66449074198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2778/4099/files/86968084865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7013/6218/files/wifido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1488/8360/files/zujesipamuxudewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9841/0918/files/australian_standard_risk_assessment_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4523/1509/files/antennas_and_wave_propagation_fourth_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/wenemazedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8590/3510/files/55710426197.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 1

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_off000066b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B0 5392 bytes
SHA-256: e7aea976fed6406e94dd8db0169dd693e1171bcc28a8bac9291dfdac666cbe95
font_01_sfnt_off000078ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78EF 11932 bytes
SHA-256: 9e57eb9c6d3812b6ae416b4c3024e557b43e0141e6f699f47d8ccd1777297570

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