Malicious PDF — malware analysis report

Static analysis result for SHA-256 e33f7aed790fc544…

MALICIOUS

PDF

35.1 KB Created: 2020-08-23 12:24:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8484e8229daad41c282f1c30e9af4470 SHA-1: ce990d7aeaeb9c4829012d41e9ddd4a9ffd57c26 SHA-256: e33f7aed790fc5444edcec3a357ef49fb668d87287fe230c40305cf51c278999
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 a link farm hosted on Shopify. One of the primary links, https://ttraff.ru/pify?keyword=unstressed+vowels+in+polysyllabic+words+worksheets, is identified as a malicious redirector. This suggests the document is designed to lure users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted from this sample.

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.ru/pify?keyword=unstressed+vowels+in+polysyllabic+words+worksheets In PDF document text
    • http://files.icedhockeyonline.com/uploads/1/3/1/1/131163859/9019509.pdfIn PDF document text
    • http://files.wlcbands.com/uploads/1/3/1/6/131607712/2769e0d94.pdfIn PDF document text
    • http://files.brookesonsphotography.com/uploads/1/3/1/4/131438692/2a7385047.pdfIn PDF document text
    • http://files.ojaivalleymuseum.org/uploads/1/3/1/1/131163932/9431274.pdfIn PDF document text
    • http://files.steveslawnmowersales.com/uploads/1/3/0/7/130739835/zarubelewugubal.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/1/0431/4074/3330/files/74518922359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1460/9305/files/android_auto_app_store.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5073/6533/files/lucky_jason_mraz_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/1029104740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3123/9588/files/soxuvuxosakaruseso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/6071/7726/files/fumogovaremebad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8127/6319/files/33175100533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0765/4563/files/pezedinuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1340/5850/files/14806613586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9432/7975/files/35580829521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/7097/5128/files/xubatebilimizekexixiguzit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8430/0959/files/rasawuzaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/poland_zip_code.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_off00004c52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C52 5608 bytes
SHA-256: 188f035f322437159dbd7dff57010e55f72964466c59ed569dc81d47c40e89db
font_01_sfnt_off00005f6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6A 9260 bytes
SHA-256: 3e2d8c02d3334a535ec2fbc3b1fc1c181df181ce4969b7a4cd8404d00eac88da

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