Malicious PDF — malware analysis report

Static analysis result for SHA-256 65caf9050cf52a21…

MALICIOUS

PDF

51.7 KB Created: 2020-08-23 17:55:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aec6a5e26d24b5adf3550775a6f12fad SHA-1: 5989b5f217ed3cf4aad0350e386fc84b9d1057aa SHA-256: 65caf9050cf52a2181448a2ba3b59bfdf99f7f318d80a91eeb5d847949c39f6a
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, including one pointing to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Battlefield 3 multiplayer free', suggesting a lure for a fake download. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content.

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.com/pify?keyword=battlefield+3+multiplayer+free In PDF document text
    • http://files.clowncabaretnight.com/uploads/1/3/1/4/131408103/wanobinogijagu-nibededo-gajojorak.pdfIn PDF document text
    • http://negal.drjenniferawe.com/uploads/1/3/1/4/131438500/f16dfb010.pdfIn PDF document text
    • http://files.elitesalonspaelma.com/uploads/1/3/0/9/130969999/80880.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/1/0431/6345/1560/files/xesagosusubonubinabixero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8651/0232/files/98876524693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0498/4483/files/nananekibore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3699/9842/files/17585604472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7957/3408/files/download_biochemistry_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0989/9670/files/bamamavisolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1969/7310/files/dokapipiwuvix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5840/4245/files/tetidalemawofixogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5193/2056/files/wezuwawuzavug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6271/2727/files/blank_flashcard_template_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3343/6055/files/gifts_for_christmas_2015.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 5

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_off00008a79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A79 5324 bytes
SHA-256: e2e995b5fce2fc57b8ad0d7a5aed60b95b35cf89ea7f8c74eb451cc41147b227
font_01_sfnt_off00009c8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C8C 10952 bytes
SHA-256: c7f91879901620c0e82b37dfce31698df7f0893eac60224044a47ac4fd72b5cd

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