Malicious PDF — malware analysis report

Static analysis result for SHA-256 02ecf88d1e59ce62…

MALICIOUS

PDF

43.2 KB Created: 2020-08-09 22:58:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a9d77f6d41297629ea9df86005c6ace SHA-1: 3a37a4c1f8b324fa4231a6452e03382ec1d4015c SHA-256: 02ecf88d1e59ce62bfa64537e01606fe44f71ed852c473faaeb97e8c4f039548
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm designed to attract traffic. The presence of multiple Shopify links suggests an attempt to blend malicious links with seemingly benign ones. The primary attack pattern involves luring users to click on these links, likely leading to further malicious content or phishing pages.

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=causes+of+alcohol+and+drug+abuse+pdf In PDF document text
    • http://files.silviabattista.com/uploads/1/3/0/7/130776088/jotunodeluke-sodunijira-vuxulukuxit-lowofefo.pdfIn PDF document text
    • http://files.tammybiggsgymnastics.com/uploads/1/3/1/4/131437107/9859267.pdfIn PDF document text
    • http://files.makeyourownlipstick.com/uploads/1/3/1/3/131384098/ritexosigizuzasewif.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/1/0434/6599/8501/files/free_kick_abcya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3890/4218/files/liver_cirrhosis_treatment_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54440827626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2358/7733/files/pisoxolufov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2027/1259/files/tapioca_processing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/53755850372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3032/3095/files/senebunulexorolowolub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9292/4821/files/job_application_writing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9064/8996/files/32595181437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/56164489954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/sapas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0288/8351/files/goluwolapimemelife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/jeriz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4166/7734/files/nestle_aptitude_test_past_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/vudifexanugoxirova.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006909.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6909 5464 bytes
SHA-256: 70069b8c9bc57bd0d42469f9dfb75bee32169ead922af3fb2bf96ebcbea803e7
font_01_sfnt_off00007b8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B8B 10604 bytes
SHA-256: 0150805c1af1dd230a8027b93e85774d70dbaac2eb46456021c2e7d7aad0f82e