Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dc2e9bf3b17471e…

MALICIOUS

PDF

50.1 KB Created: 2020-07-25 08:48:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9546293b331c002bf5db0a2f065aa37c SHA-1: b6813750c941b14f7e66084529dfd8d1a7663755 SHA-256: 7dc2e9bf3b17471e4ae18aae86d32f521313d4074b0c92b51e68536847eb3637
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirection and link farming, specifically pointing to 'ttraff.ru' as a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to an 'ampalaya planting guide'. The presence of embedded URLs and the ML classifier's high confidence further support a malicious intent, likely for phishing or malware delivery.

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/wb?keyword=ampalaya%20planting%20guide%20pdf In PDF document text
    • http://files.mathlandinc.com/uploads/1/3/2/6/132696233/1035132.pdfIn PDF document text
    • http://files.darrenleesonpics.co.uk/uploads/1/3/2/7/132712514/6075441.pdfIn PDF document text
    • http://files.carnegieinvest.com/uploads/1/3/2/3/132303359/womes.pdfIn PDF document text
    • http://files.factsorfictions.com/uploads/1/3/0/7/130775516/da831205d35.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/1/0428/0070/9791/files/20935682925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7765/4942/files/58054029414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3645/8654/files/zaraburikepazemon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9716/9824/files/60916242351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0315/8433/files/rotojujebifipon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2324/4191/files/gusogokob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/51545887187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4968/0032/files/figoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1778/0896/files/moliv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4582/1338/files/kedegetabifuno.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 7

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_off0000885a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x885A 4952 bytes
SHA-256: 3d745821ab35b028d4d01d667ad2f4353c294e438db2575167673edddade64fb
font_01_sfnt_off00009924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9924 10040 bytes
SHA-256: 2e2f23d7a295d803ff3581bdd5456dc4bb1b7ebc84269ea64238694430c5242a

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