Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbb7dc86bb187fdb…

MALICIOUS

PDF

56.8 KB Created: 2020-08-28 01:42:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef59089b3a3cb5fff2c53e99f7425216 SHA-1: b478e8d00edd9fd7028d4a9d1f5468f97bdaa3f5 SHA-256: cbb7dc86bb187fdba5f22ad8429cfa17f19b9d2b468a57513c75e02b4dbbd7b1
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic identified a link to a known malicious redirector at ttraff.com. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but also includes the malicious URL, suggesting a lure to external 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.com/pify?keyword=le+repas+des+sorci%25C3%25A8res+tapuscrit In PDF document text
    • http://files.capitalfundadvisors.com/uploads/1/3/1/4/131483147/tojenisoneritibav.pdfIn PDF document text
    • http://files.trlegacypartnership.org/uploads/1/3/0/7/130738740/444184.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/1/0428/8790/5446/files/dusajimanadidugam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9822/5320/files/31419453111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5431/8239/files/windwalker_stat_priority.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3737/6157/files/algorithm_design_goodrich.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7019/2802/files/67668838768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2555/3815/files/14518561180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6705/7063/files/86986782789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1804/4070/files/ketif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7447/7473/files/13855471329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5571/8298/files/92397447012.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8299/8170/files/81353623673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6667/8686/files/28498530110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2558/7610/files/15569474404.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_off00009cd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CD3 5116 bytes
SHA-256: 4f012859c936f72a562c08f5d2691eb93444f39b5e8545e1d2e57cb72207a818
font_01_sfnt_off0000adfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADFB 12416 bytes
SHA-256: 981bc41c8c6ed9470173680685e24ad25cf814b36d292d4e463299721ca0657b

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