Malicious PDF — malware analysis report

Static analysis result for SHA-256 f45f26df45758a48…

MALICIOUS

PDF

35.3 KB Created: 2020-08-11 01:16:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 137272df48e7419530fb175f08bbf03e SHA-1: d096d622981de8a75ae2ba2996f7b5b64b26e6cf SHA-256: f45f26df45758a48e4927c2a9b5107a0439f29f39470ca15b86c253fb21e1d2a
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=ccna+data+center+sybex+pdf', which is flagged as malicious. This suggests the PDF is designed to act as a link farm, leading users to malicious content through the redirector.

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=ccna+data+center+sybex+pdf In PDF document text
    • http://files.heantonpunchardon.com/uploads/1/3/1/8/131856430/4085e93089114f4.pdfIn PDF document text
    • http://files.cascadiamotion.com/uploads/1/3/1/4/131453045/1239c31c87b.pdfIn PDF document text
    • http://files.jandaministries.com/uploads/1/3/1/1/131164479/figijewed-lewik.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/1/0432/0778/6657/files/8d_structured_problem_solving.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5135/0166/files/xunodifurixanowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2215/4908/files/49954708202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85947343199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2834/8060/files/amazed_lonestar_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9983/0952/files/2090238393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3458/files/nypd_exam_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2227/7032/files/72206146060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5318/5174/files/70646417248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2126/0184/files/nowipanoxopotivokok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7011/2423/files/82701698701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bovegutug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0973/1734/files/cbse_class_10_english_syllabus_2020_20_download.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 5

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_off00004b10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B10 5332 bytes
SHA-256: 6bfbba2db016cda7e395c4d5b8cb5900f99e1d6781f51ba8d45fb6b4db7217e6
font_01_sfnt_off00005d35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D35 10376 bytes
SHA-256: 389b9218bd6298cbbbb6c8630a6b9d1a5bf9956af9be2c7099181d158ab843f6

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