Malicious PDF — malware analysis report

Static analysis result for SHA-256 b94f9e81230029ce…

MALICIOUS

PDF

44.9 KB Created: 2020-07-30 14:13:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8543eb906f0bb132384d8166e5b6169e SHA-1: c143ba8e298c9a22cd7418c09f7fcdb523b58650 SHA-256: b94f9e81230029ce8f0f7b7cda32f67532cede101f28bbf0e303fe3b8c388e74
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a 'PDF SEO Link Farm' heuristic. One of these links, https://ttraff.com/pify?keyword=sp3+sp2+and+sp+hybridization+pdf, points to a known malicious redirector. The document body, though heavily obfuscated, contains metadata suggesting it is a PDF related to chemical hybridization, likely a lure to disguise the malicious intent of redirecting users to 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.com/pify?keyword=sp3+sp2+and+sp+hybridization+pdf In PDF document text
    • http://files.lachivphfellowship.com/uploads/1/3/0/8/130874369/dalagamule.pdfIn PDF document text
    • http://files.everythingisanevent.com/uploads/1/3/0/8/130874058/wedazulesolo.pdfIn PDF document text
    • http://files.hubbellbros.com/uploads/1/3/1/4/131453256/zuzavuwat_banim_naxepe_japirafibo.pdfIn PDF document text
    • http://files.watersideminers.com/uploads/1/3/1/1/131163788/nelexiwid.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/1/0429/5085/2762/files/50388065787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/95387310921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6551/5933/files/vakapaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4399/files/linobewejawimipuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6133/7494/files/sevutaxewikidupenikudakof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0916/0862/files/ruwiwokujeposanufifivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8494/7357/files/55706529784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5375/1189/files/wosuxiwudafojoxixus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/71032733629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jedufejaselikaruratemop.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_off00007254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7254 5456 bytes
SHA-256: 9bf21011b3f8ec8eef94701d72083eca7b99bf547a50083b30c9b974ef08ab0d
font_01_sfnt_off000084bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84BF 10000 bytes
SHA-256: 0c9d7d35c6a3361144c2f1905217065dde228a13b4b45f8d7d6cd9f8901349ca

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