Malicious PDF — malware analysis report

Static analysis result for SHA-256 b44360681f6fb7c6…

MALICIOUS

PDF

44.3 KB Created: 2020-08-16 00:12:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 714437f3ff37289f93b969c3af1fb5b6 SHA-1: 54a46f2fc2e527fa78012a1906b02e65830bbe7f SHA-256: b44360681f6fb7c62b85fe72698ebbc148082bcc87eb6af3b8e1c1fc4abc31fd
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL and a large number of other URLs, many hosted on Shopify, suggesting a link farm for SEO poisoning. The primary malicious link is designed to lure users into downloading content, likely leading to further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/wb?keyword=introduction%20to%20chemical%20reactions%20worksheet%20pdf In PDF document text
    • http://xixute.brealestate.com/uploads/1/3/1/4/131483138/jafedil.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0433/1149/7366/files/sugepikanukapoxunew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3141/3404/files/1718001353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3771/2806/files/fur_elise_piano_score.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/thanos_vs_hulk_comic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1117/7639/files/jirosapadijuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0905/4619/files/english_dictionary_file_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/kojewabovubuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1028728638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5715/files/votupapakunokemarigadad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7282/3202/files/ditimatawawegobab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2313/7957/files/mojimiverufosivo.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 7

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5873 1604 bytes
SHA-256: 565e99d64711d6a9d59e14760bea8d85aa0dcd6973454cc7c2ff7caa52474b5f
font_01_sfnt_off00006095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6095 5368 bytes
SHA-256: bc9cbdbf452f70f0a7562a6c6e1579776acc6649dd31f6c3991722fd81d5e130
font_02_sfnt_off000072b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B1 10164 bytes
SHA-256: 6dc08e911d62ec1b39765a2fe5d8234de7370243a30b7c2c3517b80584261ae4
font_03_sfnt_off0000958e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x958E 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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