Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c2db1cfbbed9bd9…

MALICIOUS

PDF

83.9 KB Created: 2020-07-30 17:33:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0970de582a11d3d34731541f12976467 SHA-1: 73545ceba87773596c2b5a182f216d83e976fc38 SHA-256: 6c2db1cfbbed9bd96a232aac492632877fe4129d44b4096c2bc612f9d54b761a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, appears to be a lure related to 'Bell's palsy treatment guidelines'. The primary malicious IOC is the redirector URL, which likely leads to a phishing page or a payload download.

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=bell+s+palsy+treatment+guidelines+pdf In PDF document text
    • http://files.southernaddictiondecor.com/uploads/1/3/1/0/131070161/683911c33.pdfIn PDF document text
    • http://files.superiorclinics.com/uploads/1/3/0/7/130775027/732619.pdfIn PDF document text
    • http://files.deitzlandsurveying.com/uploads/1/3/2/8/132814898/7987237.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/1/0429/6258/3711/files/kajubut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6145/0654/files/goxebete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9613/8137/files/22875177878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6203/4589/files/konirizutir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52209678420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3096/0549/files/fodiripi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1764/9819/files/nedosimorotididoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8107/1782/files/4301207161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4795/2292/files/44141956622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/bigafuwabibefefov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7540/3929/files/jigurokexilafonen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/58116694107.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 6

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_off00010a5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A5A 5284 bytes
SHA-256: 3437f8561e13270323b60cab11c3225ffc4a40af542e50f6f49084e4509225a5
font_01_sfnt_off00011c3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C3F 11164 bytes
SHA-256: 41d53fda16892ae14037010eeb9f7f77adbff9e4e678d3ef18b1fa50fee21a2a

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