Malicious PDF — malware analysis report

Static analysis result for SHA-256 93197adb57efe4cd…

MALICIOUS

PDF

42.4 KB Created: 2020-08-08 09:20:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 70963a119061d331ef62884b5fadeadd SHA-1: 8e3af86b04eb8e77b0830e397053a79aa50e3692 SHA-256: 93197adb57efe4cd74569d019594c1b6d3f8e8760e398175fb3edeb330ac371b
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. Another critical heuristic identified a PDF link farm, suggesting SEO manipulation or a large-scale distribution effort. The document body itself is heavily obfuscated and contains a URL that matches the redirector heuristic. The primary intent appears to be redirecting users to malicious content or infrastructure through a network of links.

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.ru/pify?keyword=organic+farming+wrt+cosmic+energy+pdf In PDF document text
    • http://files.espanishblues.com/uploads/1/3/0/7/130776393/4480290.pdfIn PDF document text
    • http://files.derekpublishing.co/uploads/1/3/1/3/131378990/lovogipawipo_jijinar.pdfIn PDF document text
    • http://pizizu.soakitupfranklinma.org/uploads/1/3/2/3/132303382/dugalid.pdfIn PDF document text
    • http://files.more4lessplans.com/uploads/1/3/1/1/131163620/17d174a1d7.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/1/0434/1858/3192/files/nopotiziwarutulenalejix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4555/2290/files/95982037062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3040/4502/files/baixar_livros_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4788/4702/files/sadubivobesoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0305/1171/files/gidiwugirelerukotijil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1437/4047/files/kobib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0533/0083/files/10263637397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3468/0216/files/29048592453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9403/5880/files/bayesian_statistics_for_hackers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58143530911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6109/2250/files/lodegusikixe.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 4

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_off00006602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6602 5664 bytes
SHA-256: 4f0d32aa09919c293fd96aadc2ddb8df8eb739e7378e93f5d020753224f8e895
font_01_sfnt_off00007950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7950 10352 bytes
SHA-256: dae00ff2093e187dd846d3b1da44e74afe14e1f480b6218857c00574c27e1e79

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