Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd6ee775931209e5…

MALICIOUS

PDF

38.8 KB Created: 2020-08-25 03:03:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66177312e8a87626a4a31133c6e92b7a SHA-1: 11fec8106dae00456b1e4d2cc62a065e1b3f2452 SHA-256: bd6ee775931209e590829b3bfc0a79d6e24ac81ba2a17b1ebee434bd3af9a76d
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=confluence+command+line+interface'. Another heuristic flagged the document as a link farm, with 17 external PDF links, suggesting an attempt to manipulate search engine results or distribute content across multiple sites. The document body, though heavily obfuscated, contains references to these URLs.

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=confluence+command+line+interface In PDF document text
    • http://tubib.sunshinecoins.com/uploads/1/3/1/4/131406062/kowuk.pdfIn PDF document text
    • http://files.sandbachosteopaths.com/uploads/1/3/0/7/130739480/7799057.pdfIn PDF document text
    • http://files.biosolutions.co.nz/uploads/1/3/1/3/131382470/sanetefej.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/1/0431/1914/9216/files/pictures_of_medicinal_plants_with_names_and_uses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3267/2413/files/bikigisawowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2363/7402/files/83904369698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4539/4331/files/anestesia_local_em_odontologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9486/8122/files/noxosubowoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7063/5680/files/woneboralarej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1028/5983/files/ti89_titanium_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3178/1791/files/punekatunefutemika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7238/0318/files/8789191738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0553/4620/files/diwakotefejikunug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6140/4060/files/wowosepagifeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7462/6470/files/nodesekapigeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1701/7256/files/23566400515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31688109027.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 2

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_off000059f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59F7 4896 bytes
SHA-256: af940705b07731d2e5b509117b97dd1e871fc42b2ea89cd6015c8c0cd5a6c000
font_01_sfnt_off00006a7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A7F 10512 bytes
SHA-256: 8a404d981ce53dccb94428302632846215f87e5d7cb134779d268f8262f56d52

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