Malicious PDF — malware analysis report

Static analysis result for SHA-256 66c02da47086f4ab…

MALICIOUS

PDF

49.2 KB Created: 2020-08-14 06:12:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 527e8e762cce24f2d20ced77e7aa6799 SHA-1: 50b4e637fb0bd391630a07c7140daada9fa3de18 SHA-256: 66c02da47086f4ab2393c00351ab27a4445fd732c479e8eb707397f561d5dffc
194 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier and contains multiple heuristics indicating malicious intent. It embeds a large number of links, with at least one identified as a malicious redirector (https://ttraff.cc/pify?keyword=hollywood+horror+bluray+movies). The document body, though heavily obfuscated, also contains this malicious URL and other links pointing to external PDF files, suggesting a link farm or phishing lure. The presence of embedded URLs and the overall structure strongly indicate an attempt to redirect users to malicious infrastructure.

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=hollywood+horror+bluray+movies In PDF document text
    • http://files.jeannesternerdesigns.com/uploads/1/3/1/4/131437508/7897889.pdfIn PDF document text
    • http://rixuzab.mccalldoylephotography.com/uploads/1/3/0/8/130814769/xedenipifir.pdfIn PDF document text
    • http://files.graceholland.net/uploads/1/3/0/8/130874668/2933454.pdfIn PDF document text
    • http://files.valerieraps.com/uploads/1/3/1/4/131455475/xinixubexis.pdfIn PDF document text
    • http://files.aurorahealthservices.com/uploads/1/3/1/1/131164157/97b164c3.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/1/0429/2821/0073/files/how_to_hear_yourself_on_mic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8933/files/nuxedapanujijunitamipef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/83909613348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6917/6992/files/sujawafojikisebevenakilas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7878/6965/files/foritatoduz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9217/3217/files/god_s_creation_story_with_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dusegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/68483300542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1461/8262/files/81939194727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4233/8981/files/gonudasetabafepol.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_off00008159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8159 5420 bytes
SHA-256: a146de08f8d6b5263571f54572239cfdbed259ddedf2af6ff38424cd351db42a
font_01_sfnt_off000093b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93B1 10444 bytes
SHA-256: b2d36330cae405f5b7f346715257c288237a18bfcf87eca90fc62fe9860bd546

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