Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8e3508c510b3155…

MALICIOUS

PDF

44.0 KB Created: 2020-08-07 16:26:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae46c6fa9ca8eaea874944caccc68854 SHA-1: 357379a620bb770298cbdd9757ff90b13110c4e6 SHA-256: f8e3508c510b3155726add2ec8742970fdebf14787779a59b49055f464207bf9
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised with a seemingly innocuous title related to PDF annotation. This link, 'https://ttraff.cc/pify?keyword=how+to+annotate+pdf+in+notability', is designed to lead users to malicious infrastructure. The PDF also hosts a large number of external links, many pointing to Shopify domains, which is characteristic of a link farm used for SEO poisoning or to obscure malicious destinations. The ML classifier strongly flagged this PDF as malicious.

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=how+to+annotate+pdf+in+notability In PDF document text
    • http://files.missmegandevine.com/uploads/1/3/0/9/130969874/wilapiripegato.pdfIn PDF document text
    • http://nezigur.rosamiliafornjea.org/uploads/1/3/1/0/131070420/nefenozoxebafu.pdfIn PDF document text
    • http://files.kleindesignclass.com/uploads/1/3/0/8/130874162/8054872.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/1/0440/8908/2006/files/body_parts_name_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/44194366421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/39884754196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7488/6563/files/gelatin_hydrolysis_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1602/8309/files/ap_psychology_learning_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8003/1135/files/77930258735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3420/4568/files/gelubatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/64956704404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7767/1843/files/tiwenobitojifitofejemewob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/72166658986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1804/4070/files/lipaxekufakuboginu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9784/1054/files/kubota_zd326_service_manual.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000604d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x604D 4844 bytes
SHA-256: 1715eb1209c12c9fa287e50743f61b322f0de3d1c73faa10bc685452eb03424f
font_01_sfnt_off000070e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E8 10556 bytes
SHA-256: e8eb23c5c980677e45fc8b312a0f2be71d61f24369542a5b5b352c89b6d9f0d5
font_02_sfnt_off00009505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9505 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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