Malicious PDF — malware analysis report

Static analysis result for SHA-256 09b2536652da8047…

MALICIOUS

PDF

92.7 KB Created: 2020-08-11 13:10:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 964328618606edb640e50e373bf12272 SHA-1: 93ad4a5463222b44b82256a14654bcc22b782c90 SHA-256: 09b2536652da8047d1b000780d385e69033e379b08ba2886f665b00e0a9744a7
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to create a link farm, with a critical heuristic firing for redirector infrastructure. The document body includes a URL that points to a redirector, which is likely intended to phish users under the guise of providing a PDF document. No scripts were extracted from this sample, but the embedded links and heuristics strongly indicate a malicious redirection attempt.

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=courses+after+12th+science+pcb+group+pdf In PDF document text
    • http://files.psychologyib.com/uploads/1/3/0/8/130814032/xowuda-kuxep.pdfIn PDF document text
    • http://files.brendarachel4angels.com/uploads/1/3/1/4/131455680/raxili.pdfIn PDF document text
    • http://files.grennifer.com/uploads/1/3/1/4/131482976/9969814.pdfIn PDF document text
    • http://files.rachelmeetsplanet.com/uploads/1/3/1/8/131871745/pitiberuzaduv-xalawigumefubiw-xosatenuz-sedevilawo.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/1/0436/9291/6886/files/89228409037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70945418412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6640/7589/files/11430275253.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/25593075172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6491/8165/files/55916665874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4834/3464/files/black_american_literature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/98109963152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6356/6755/files/4473904030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7808/9878/files/69794487007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1401/0518/files/43867391983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0542/5310/files/anteversion_femoral.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_off00011fb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FB5 5612 bytes
SHA-256: 4ec6fc3c79f91ee2ef2852d56f59adf674ea76293caf0628939ca22000457665
font_01_sfnt_off000132c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132C1 16564 bytes
SHA-256: 00e8f75ad8af6f6903b6764b3e67038e3641888c0cf25ebbe8fd861c6187fa7c

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