Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b7ebb6ecfd65ad7…

MALICIOUS

PDF

41.6 KB Created: 2020-08-06 12:44:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6dd177ccabb5ef704e44f0d27ba7cbef SHA-1: 206b8a7c957dc5e9a03bbb39d3de2107cd281c8f SHA-256: 7b7ebb6ecfd65ad7cc7d1f0b614b06e44c0fe9dda4e35153090d7e2d5125116a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm. The primary redirector URL, https://ttraff.com/pify?keyword=supervised+autonomous+robotic+soft+tissue+surgery+pdf, is flagged as malicious. This suggests the document's purpose is to drive traffic to these external sites, likely for SEO manipulation or to host phishing content.

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=supervised+autonomous+robotic+soft+tissue+surgery+pdf In PDF document text
    • http://files.theartofshade.de/uploads/1/3/1/8/131871816/poboxu_lifurono_bizuropizunojex.pdfIn PDF document text
    • http://files.commitmentcounselling.com/uploads/1/3/0/8/130874160/13f0deaf9b2c.pdfIn PDF document text
    • http://fatako.karenwilliamsjungianpsychology.com/uploads/1/3/2/6/132681579/fuwoxizarenof.pdfIn PDF document text
    • http://files.franklinjgreene.com/uploads/1/3/0/9/130970009/wurenipezixemagagege.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/1/0435/9097/5647/files/57995481602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5457/0399/files/gejorazewilugazojirexedem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1573/9304/files/spanish_grammar_book_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1541/3658/files/bojonuzofubulejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5625/1559/files/11423692156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5308/7911/files/arduino_tutorial_sinhala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/nofug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4031/7350/files/65788266811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3724/6118/files/pasitanedoxijimowiwekax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8151/5673/files/51274582779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/vukamejote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3182/1473/files/32763509847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kexikebesadunav.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
🗂 Part of campaign: serendipitygarden.ca 8 samples

Related samples 4

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

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Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B8 5848 bytes
SHA-256: 0954e3d9df5215808e67f5ae2655f94245177485a1e4cf0f2f6d7c41b3c7ddbd
font_01_sfnt_off00007695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7695 10240 bytes
SHA-256: e44776cbb9f75b6e7393bfc2e00621b5325c67e0f9597adbcb0d917f1fa496cb

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