Malicious PDF — malware analysis report

Static analysis result for SHA-256 123176d60813537c…

MALICIOUS

PDF

33.4 KB Created: 2020-09-10 08:49:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ad07e77654d486b3c00c0d3d6a9863a SHA-1: c651d69690307532dc8fcefb7b675e4fcb29856a SHA-256: 123176d60813537cebc26dae15762459dea074a0d44b41e38333b6d50f18df91
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service that is flagged as malicious. The document body, though heavily obfuscated, includes a URL that appears to be a lure for popular video content, suggesting a phishing or malware distribution attempt. The presence of multiple SEO-optimized PDF links further indicates an attempt to drive traffic 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.link/wix?keyword=bulandiyan+video+song++mr+jatt In PDF document text
    • http://files.atlantadentalanesthesia.com/uploads/1/3/1/4/131455883/najikenusapijevofifu.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/1/0462/2879/9639/files/exterior_angle_theorem_math_aids_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9595/5358/files/form_6_application_for_leave_deped.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/musimaninosojaxim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6041/0021/files/xodidopubutanugapebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/jenovubuwiwikamif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3458/files/87032034236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4693/5447/files/rosary_guide_bisaya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0081/2952/files/13784845195.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/72216b_d4f34ce9a6e4484281da9596396bfbd4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3f4b99_da02936232614ed788ab9c4b47f9d80a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/286fb8_510bc1dbd3ee4480b316e06478be0fa6.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 8

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_off000044ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44FF 5432 bytes
SHA-256: 17dd45b4db758488e28f75984465969381f7388f3be9a142178c2e53c880d993
font_01_sfnt_off00005776.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5776 9804 bytes
SHA-256: bbb30022018c5978f2233d82b01eb78039f90b23930f3dfc9d91ad5079d8b42f

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