Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e264af0b870ced8…

MALICIOUS

PDF

45.1 KB Created: 2020-08-10 21:22:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e92f2fe3170f93e4cbc11104a59af4a SHA-1: 2d2e973ac48f21ce36246a4c620a012e21ff8bdb SHA-256: 2e264af0b870ced8c9690303c5c47b78123dcdcb580e187c52144ef9ff2a45e6
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=carbon+cycle+worksheet+pdf'. This suggests the document is designed to trick users into visiting a malicious website by presenting itself as a benign worksheet. The presence of numerous other links, including those hosted on cdn.shopify.com, indicates a link farm strategy to potentially improve search engine ranking or distribute malicious content.

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=carbon+cycle+worksheet+pdf In PDF document text
    • http://files.cococochran.com/uploads/1/3/2/6/132683173/gizotebujedavitokez.pdfIn PDF document text
    • http://files.jakob-lorber-australia.net/uploads/1/3/1/3/131383727/bininagapis_dawuk_vugix.pdfIn PDF document text
    • http://files.covingtongardenclub.com/uploads/1/3/2/6/132681556/fedimefefax.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2331/6630/files/accident_report_ar_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3993/1033/files/71475863660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/83706110512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0956/4064/files/37315884140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3754/7929/files/37823448665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2468/4968/files/ncert_12_biology_textbook_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0612/2393/files/92582502478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4722/3458/files/gowimabejotowasifusisez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6681/3590/files/application_of_bragg_s_law.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/suxapajavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8168/6439/files/technical_analysis_from_a_to_z.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1872/2216/files/36060840032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4136/5922/files/design_of_machinery_norton_5th.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006407.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6407 5404 bytes
SHA-256: b7c89dde04987639d46fc532dd319ff68505e0de02d7775ed0ab992616ae4fa1
font_01_sfnt_off00007672.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7672 10296 bytes
SHA-256: 770e3d4c83e87052a56308f8b2ae3e3f308320a3f5bbe87a78018dae55309950
font_02_sfnt_off00009981.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9981 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176