Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b9507cad3bb9519…

MALICIOUS

PDF

42.1 KB Created: 2020-08-25 09:45:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 940af267ed8e72883f735fad08523e41 SHA-1: 35bd95ca72ed542b8b8a409c6af79798e82e5808 SHA-256: 8b9507cad3bb951900ce1e202c5fbbe9ff3c8bdf25ae433a185d0669b1ff7912
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including Shopify. One prominent URL, 'https://ttraff.com/pify?keyword=pediatric+hypovolemic+shock+guidelines', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to pediatric shock guidelines and the malicious URL, suggesting a social engineering lure to direct users 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.com/pify?keyword=pediatric+hypovolemic+shock+guidelines In PDF document text
    • http://wuziza.dietitiansinthekitchen.com/uploads/1/3/0/9/130969130/xonidolokuxiserak.pdfIn PDF document text
    • http://bajubixo.jrwholesalespr.com/uploads/1/3/1/4/131455734/7375153.pdfIn PDF document text
    • http://files.mimulux.com/uploads/1/3/1/8/131872021/8e1a96fd.pdfIn PDF document text
    • http://files.brianriordanmusic.com/uploads/1/3/1/3/131379776/88de021.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/1/0434/9886/4804/files/kamajozugamuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sosivizugepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7351/9269/files/59327148630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5046/6464/files/blizzard_app_slow_speed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/fimutewubowafilowudiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/larabobed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/fidezorozikonabaduzanipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8790/4422/files/juzuvosidiginifez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1507/7022/files/payback_1995_movie_300mb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0397/7634/files/guitar_neck_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2502/2621/files/revocation_of_special_power_of_attorney_template.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_off00006523.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6523 5712 bytes
SHA-256: cd3a6a3f185804910433b0bc80dd24dc175828e5e24a3246ffc1e48f3d005114
font_01_sfnt_off00007878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7878 10252 bytes
SHA-256: 86e66e31232324f89018e97e7436fb83092deb1050455923c81c1463ce0fdafd

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