Malicious PDF — malware analysis report

Static analysis result for SHA-256 10b1b3524ed55648…

MALICIOUS

PDF

41.2 KB Created: 2020-08-18 21:58:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a387ab67b76dfa519ceaa0cf1388a4ac SHA-1: b558a385754879764ca6bff6d591f564df4f4e43 SHA-256: 10b1b3524ed556481694e3c6a144d46c82c063fdf9042b4960b2cad15b51b7cb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt disguised as a free download. The ML classifier strongly flagged this PDF as malicious. The primary malicious URL identified is https://ttraff.com/pify?keyword=calendar+template+for+pages+mac, which is used in conjunction with numerous benign-looking Shopify links to obscure the malicious intent.

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=calendar+template+for+pages+mac In PDF document text
    • http://files.mrsras.com/uploads/1/3/2/7/132712355/gofiwaxomis.pdfIn PDF document text
    • http://files.climbireland.com/uploads/1/3/1/4/131408798/sonetazizufu_siwonesip.pdfIn PDF document text
    • http://files.kimkirch.com/uploads/1/3/0/7/130775827/welobozutudirol-fulunim.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/1/0437/8807/5159/files/k_lite_codec_pack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9827/3944/files/guidepost_montessori_at_prosperity_reviews.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7822/1973/files/piwuvonazuxizowipako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8466/0380/files/14504088349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7215/1959/files/xogonar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1795/3702/files/17632915998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5677/5839/files/47446847387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4678/8502/files/losujewamigolufinivenej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/candombl_no_brasil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0445/2246/files/dukadaloriduxoxamiduk.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_off000063ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CA 5380 bytes
SHA-256: 85379d651ca29cbe1154bee7efff493b21da2a14a299bf278ed52b5b34c01255
font_01_sfnt_off00007606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7606 9956 bytes
SHA-256: 09d31ab8d34c5eeee736f8cdd97e368affc65a6d64e0c52a4851f6e4c67bc7fe

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