Malicious PDF — malware analysis report

Static analysis result for SHA-256 20436e09a921f790…

MALICIOUS

PDF

33.9 KB Created: 2020-08-27 14:54:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: df05f81e16f8c1360300cfea15565c70 SHA-1: 165dadc40d4c8b4f40430bf89c5c9d842f018069 SHA-256: 20436e09a921f79064541325ef421e007bff6b5cb864d3ef8551817e140c5f85
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic indicates the presence of a malicious redirector link, specifically `https://ttraff.cc/pify?keyword=the+handmaid%252527s+tale+season+1+episode+1+online+free`, which is designed to lure users to potentially harmful sites. The document body, though heavily obfuscated, also contains this URL and other PDF links, suggesting a link farm or SEO poisoning attack. No scripts were extracted from this sample.

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=the+handmaid%252527s+tale+season+1+episode+1+online+free In PDF document text
    • http://files.jacquigreaves-author.com/uploads/1/3/0/7/130776490/90f57.pdfIn PDF document text
    • http://files.homesweetbows.com/uploads/1/3/1/8/131871633/gidodixowaxida.pdfIn PDF document text
    • http://files.adf64.org/uploads/1/3/2/6/132695492/kusevobizati-saxogegoti.pdfIn PDF document text
    • http://files.nourishinginsights.com/uploads/1/3/2/6/132695392/nipigepevipakopad.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/1/0432/7541/9798/files/pupunigawipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1568/2717/files/arduino_string_split.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7195/3301/files/67005018128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3621/9291/files/dafelojuduxubesaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/filmyzilla_bollywood_2016_movies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dipudakafadaned.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/widizosatadusuzovasovodas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9302/5187/files/rowezunubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7060/3932/files/random_integer_in_r.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_off000048ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48FF 5316 bytes
SHA-256: c13fd54ec08b577829ad1a030e429d84910bf60197e61dbf3fe024703e2f83f0
font_01_sfnt_off00005af3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF3 9348 bytes
SHA-256: 840de1e22ba79e65d9b0694d064163096168b78b0c46b287bd3e5b69cd47b70d

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