Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ef67cbe5a38f227…

MALICIOUS

PDF

34.5 KB Created: 2020-08-17 15:14:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 97885f1d9f577e02138fed5cbd5a22c2 SHA-1: 7c614cc8c444b6d8c34a5d8754deea6924ee9b92 SHA-256: 2ef67cbe5a38f227ed4b1c384c4d60861ac2cb4aab8cb4672215322db2c520e9
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to alphabet worksheets and a URL that matches the malicious redirector. The presence of a large link farm, with many links pointing to Shopify domains, suggests an attempt to obscure the malicious destination. The primary malicious URL identified is https://ttraff.com/pify?keyword=upper+and+lowercase+alphabet+writing+worksheets.

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=upper+and+lowercase+alphabet+writing+worksheets In PDF document text
    • http://files.tell-ignite.com/uploads/1/3/0/7/130739308/vizerag.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/1/0428/4642/1158/files/discord_markdown_strikethrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/nesolajomutafijezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2597/2904/files/54384831962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8411/8171/files/32121836735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1332/2398/files/wixiraroxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5205/7244/files/tanh_activation_function.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6976/files/59881125691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9991/2344/files/slope_intercept_form_real_world_problems_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2661/2378/files/proponents_of_rational_choice_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2281/8200/files/dinanapozamitawive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9605/3662/files/22219847086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/poxusulijupidokubeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9137/8854/files/40794755426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0990/8637/files/67839969728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9055/8622/files/dinewurenorezimub.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_off0000480f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x480F 5624 bytes
SHA-256: 15ecb699fbb4fb95258a6d86c67707b5cf9fd0e962fa97e55eda928e78541aa2
font_01_sfnt_off00005b30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B30 9756 bytes
SHA-256: 8fd1493963423755a9411feb3023270983c215ab0791bfd0e577ba9127da562b

Open this report in the interactive analyzer, or submit your own file for analysis.