Malicious PDF — malware analysis report

Static analysis result for SHA-256 c951eb2a4866cffc…

MALICIOUS

PDF

35.6 KB Created: 2020-08-01 16:21:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 177f2748a67c9b299c3ee5e3fa403e36 SHA-1: d8b48c2cb1eb9a553fe03fe45798c54f35a62b28 SHA-256: c951eb2a4866cffcb36e31396c0cd26d45c2cbd848dad4d1e661ab9c8af1e7f6
194 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though obfuscated, contains text related to 'Bobcat t300 parts manual pdf' and the wkhtmltopdf application, suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious, reinforcing the assessment that it is designed to redirect users to harmful content.

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=bobcat+t300+parts+manual+pdf In PDF document text
    • http://files.droolyandrewspetportraits.com/uploads/1/3/1/4/131454024/vijigawe.pdfIn PDF document text
    • http://files.leadershipstarkcounty33bestclassever.com/uploads/1/3/1/3/131379828/zoravigatedibovej.pdfIn PDF document text
    • http://files.shhsart.com/uploads/1/3/0/7/130739674/juxifikunuzodu_xafaji.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/1/0431/5545/6149/files/uninstall_java_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/bojasokuxafitanav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3901/4562/files/jenejifusozaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2966/6724/files/bolarolatexol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6962/6781/files/gobakoratipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8683/0998/files/57674285145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4394/5628/files/zizededinupaxikobojagog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9980/7126/files/sodufodosunoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32505595602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/funuxak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9140/9562/files/76666370937.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 2

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_off00004ddf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DDF 5796 bytes
SHA-256: 5f334905d5725ceb9f68e8ec02f6a30ff716faa03e24f490a0ae712a83a9ae9a
font_01_sfnt_off00006175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6175 9512 bytes
SHA-256: 7825f2caf35d5b71a8730ee5d6b65a22520edf8d4e30779ff222820083e0a6a9

Open this report in the interactive analyzer, or submit your own file for analysis.