Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4910cd66c738359…

MALICIOUS

PDF

34.0 KB Created: 2020-08-14 08:17:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 19a36f8e00ebe9d4bc85b876a338c24e SHA-1: 73e5d0caf05106a552560d87343b4671e25744b6 SHA-256: c4910cd66c738359f84043f821ab535615ee56df2d57226ed9f1dff6fa4e2dd4
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text related to a 'chevrolet malibu 2011 owners manual' and the malicious URL, suggesting a lure to trick users into clicking the link. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, further supporting the malicious intent of redirecting users to potentially harmful sites.

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=chevrolet+malibu+2011+owners+manual In PDF document text
    • http://jajekipuf.jeniferkasten.com/uploads/1/3/1/6/131606165/tuzop.pdfIn PDF document text
    • http://pizedixi.sondrineleebontemps.com/uploads/1/3/0/8/130813848/3946532.pdfIn PDF document text
    • http://files.tipdi.com/uploads/1/3/0/8/130814432/de736554f2accb.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/1/0438/2444/7638/files/95791264985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1987/8048/files/75638078328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/palutofiferividagidozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7183/6055/files/mathematics_achievement_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8014/6343/files/56805684895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8131/8056/files/bienes_y_servicios_con_tarifa_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sivuduveserekolagaxabulux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1078/3394/files/62675559170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1339/7913/files/polap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4460/8932/files/lorufanadotomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/8740702860.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 3

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_off00004a34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A34 5448 bytes
SHA-256: 29f314fa62799145e133f1ec373f3a2f58b60f01dcd995033d13cdfa23ccf4a8
font_01_sfnt_off00005caa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CAA 9044 bytes
SHA-256: 933d5c7172d150e8698586683234dde5bf913f0ceefb420a0162f7ee01f371d3

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