Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8ca4b2838c44e89…

MALICIOUS

PDF

57.3 KB Created: 2020-08-09 10:33:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9067e84ac3bb8c7826e1763ae3bb3ddd SHA-1: dc79ac5c41e8925fd0d31a357684c43aaa49b60b SHA-256: d8ca4b2838c44e895c29306747a708af0c77b434c4589d8725fdb707007267b0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a prominent link that redirects to a malicious URL, disguised as a free download for a script. This indicates a social engineering attack aimed at tricking users into visiting a potentially harmful site. The PDF also exhibits characteristics of a link farm, suggesting an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. The primary malicious IOC is the redirector URL.

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=bengali+comedy+drama+script+pdf+free+download In PDF document text
    • http://files.kamtectools.com/uploads/1/3/2/6/132683070/6998208.pdfIn PDF document text
    • http://devit.milesindustriesnz.com/uploads/1/3/1/4/131453574/fujatedo_setikudenikem.pdfIn PDF document text
    • http://lamipemi.trinibnb.com/uploads/1/3/1/0/131070420/dowofezizekusizad.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/1/0433/1077/6484/files/67712053650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9460/files/cateter_venoso_periferico_calibres.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5197/3799/files/beauty_and_the_beast_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/jiteriguvapebitetarozeduj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5555/3432/files/94089728490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1987/5998/files/employee_learning_and_development.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9114/0512/files/java_matrix_class.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6241/1935/files/jerinelemebuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8089/8973/files/39945566138.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008a3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A3D 5720 bytes
SHA-256: 20bd7fd0cb3f3a6f2a0b4aae209dd1877c80f87c77084f2068c85299412ca464
font_01_sfnt_off00009db6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DB6 10688 bytes
SHA-256: 1af088d18070d5a2f09e2c97fa08f9e9c27a683a5ea02edb8ae12f532208e91a
font_02_sfnt_off0000c289.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC289 16148 bytes
SHA-256: 43dd7310e986e37c0562d6efd2a67b6291a0d41fa892ecd43b306c3e7231f7b7

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