Malicious PDF — malware analysis report

Static analysis result for SHA-256 12ba6fc12d5560b6…

MALICIOUS

PDF

44.4 KB Created: 2020-08-11 09:12:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 152ff0f9b07ff5e7eed57f349161626c SHA-1: d973eb8541c464db2912b69da2e97c55a0bc96cf SHA-256: 12ba6fc12d5560b69f27ab885148ceaeccf39d309c761090190146cabab37f3a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm designed to attract traffic. The ML classifier also strongly flagged this PDF as malicious, suggesting it is part of a phishing or malware distribution scheme.

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=anatomy+physiology+of+eye+pdf In PDF document text
    • http://files.atech401.com/uploads/1/3/0/7/130775016/3519656.pdfIn PDF document text
    • http://files.redesignforwholefamilies.com/uploads/1/3/1/8/131857193/jowudakavesof-rusodisoton-zofokizubolas.pdfIn PDF document text
    • http://files.mahsasalali.com/uploads/1/3/1/8/131856700/tizoxe-kusip-tebanerifuvetug-jozuburijute.pdfIn PDF document text
    • http://files.rascalmartinez.com/uploads/1/3/1/4/131437689/8220341.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/1/0432/2259/7800/files/zudegekazofoduv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5834/0774/files/88507777675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7426/4993/files/zijibuduwifarolaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8115/4198/files/fozisib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3549/9418/files/bofagilajuxugelegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/73538294562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1367/5928/files/sabol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6498/3703/files/rilufabukenanujejukepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/the_book_of_lies_jw_hofstetter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/serie_a_calendario_novembro_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9612/8153/files/zatewanewanaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5975/7727/files/automatic_control_systems_benjamin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4054/6714/files/275640124.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 8

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_off00006c0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0F 5452 bytes
SHA-256: 1267870058d99b27a684703df289a17ff3bbb408683938d8b49609f65bbb3370
font_01_sfnt_off00007e79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E79 10624 bytes
SHA-256: 9f9c186e2902c16d8f19ab7f574a5f7f8fb5e260f51d412a00276d77fa5126ef

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