Malicious PDF — malware analysis report

Static analysis result for SHA-256 e22d2b2b76a9d4e5…

MALICIOUS

PDF

46.3 KB Created: 2020-08-11 04:45:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4047cffc66a91697a7f75788965216ac SHA-1: 483cafac6e2fb2b3c3e0d2632f61ffd8ff31531a SHA-256: e22d2b2b76a9d4e5a61a0ed65c6c11a7091fbccf8b87191ecdd63f25fae9da5e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a malicious redirector at 'https://ttraff.com/pify?keyword=cambridge+english+test+c1+pdf', disguised as a Cambridge English test. The document also functions as a link farm, pointing to numerous other PDF files hosted on various domains, likely for SEO poisoning or to distribute further malicious content. The heuristics indicate a critical finding for a malicious redirector and a link farm.

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=cambridge+english+test+c1+pdf In PDF document text
    • http://files.spiritual-research-network.com/uploads/1/3/1/8/131856046/2492982.pdfIn PDF document text
    • http://files.spiritswithjen.com/uploads/1/3/1/3/131398059/7c2c5c24b29.pdfIn PDF document text
    • http://files.w-sindustrial.com/uploads/1/3/0/7/130738764/3d0994.pdfIn PDF document text
    • http://files.jasonsmithendo.com/uploads/1/3/1/8/131871424/bapoterike-nedodosi-zijesekeruxen.pdfIn PDF document text
    • http://fisowojed.thecameracart.com/uploads/1/3/1/3/131384169/a3f2407dabab5.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/1/0431/0617/3077/files/julian_kal_seinfeld.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3197/0460/files/sezodudamobaretitop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6187/9719/files/logajigiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/98771984191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9200/0412/files/adverbial_particle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5552/0667/files/10438197329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4678/0579/files/tenor_saxophone_arpeggios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2965/0856/files/64962166008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9767/6192/files/amadeus_itinerary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1947/4856/files/malaria_parasite_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7849/2062/files/2843405748.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 5

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_off000071ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71EC 5668 bytes
SHA-256: 77310a00e3ecab25dcdce89e0a57f8eedb41cb68d15f7b7ec0e1425e63316770
font_01_sfnt_off00008508.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8508 11364 bytes
SHA-256: 4bb3e895a5eac1d35dcadddadc65d70bdd71bb07b51f4d114aca9b3c70cf151a

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