Malicious PDF — malware analysis report

Static analysis result for SHA-256 63ccb7f0fc472d85…

MALICIOUS

PDF

44.3 KB Created: 2020-07-23 23:49:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9bdaf7e868c5ec1b70d2af62ecff01f0 SHA-1: a4718bf6bf8e011b31453cbec98e03b3a3961e72 SHA-256: 63ccb7f0fc472d85954de074518a2d72589f5e43bf067328a6e1b4f63882663d
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) and a large number of PDFs hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The presence of a malicious redirector link and the ML classifier's high confidence score indicate a malicious intent, likely to phish for credentials or distribute further malware. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=biology+book+class+9+pdf+free In PDF document text
    • http://files.dragonflyhoney.net/uploads/1/3/0/7/130775292/tojifone_misafiw.pdfIn PDF document text
    • http://files.pemmensgolf.net/uploads/1/3/1/3/131379612/febokibilodirina.pdfIn PDF document text
    • http://files.lakeeriefishingderby.com/uploads/1/3/1/4/131437446/1fadf4d99.pdfIn PDF document text
    • http://files.visaofoundation.org/uploads/1/3/0/7/130740256/xederudimexobub.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/1/0434/6108/3301/files/gixulopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4831/2736/files/wiluzimejukemage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3111/6448/files/17918005925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9243/5359/files/16266328441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8765/8141/files/17503982459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4277/4938/files/bonijixoredifukokofav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/55551947298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/vasuvonowarefaditolage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7866/4867/files/30717711793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54313135065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6278/7237/files/vatawarokevaremovorapin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2313/0009/files/47385822306.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_off00006fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCB 5436 bytes
SHA-256: b91d802134714e7b7d2fdc995b2c02e219129f048ce79a37347d6c3333173cb4
font_01_sfnt_off0000824f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x824F 9960 bytes
SHA-256: cbc60cb4b201abd59b01245ccbb08814b9a2f1f95b74c1b95b17c4258ae4d095

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