Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d4dd35c0ff3bcb8…

MALICIOUS

PDF

39.4 KB Created: 2020-08-04 02:29:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2b5b08e8d8202e0a02862aa4a5dc1ee SHA-1: 8e02288d041c16c1f91a0261d09c7d10908024f6 SHA-256: 3d4dd35c0ff3bcb8001d9eadb7d7bab3e01b28afb04f2db3c215693365dc0d53
194 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a link farm designed to redirect users to external content, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=iit+foundation+maths+books+for+class+8+pdf+free+download', suggesting a lure for downloading educational materials that likely leads to malicious content. The presence of numerous Shopify URLs, while many are benign, contributes to the SEO spam nature of the document.

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=iit+foundation+maths+books+for+class+8+pdf+free+download In PDF document text
    • http://files.yvccorvallis.org/uploads/1/3/2/6/132681438/betupi.pdfIn PDF document text
    • http://files.drogmi.org/uploads/1/3/1/3/131398504/ginobawum.pdfIn PDF document text
    • http://files.gingerandpicklesnutrition.co.uk/uploads/1/3/0/7/130775310/7c9e3f6063555c.pdfIn PDF document text
    • http://files.cestagift.com/uploads/1/3/1/1/131163601/tezuxijolamokub_bozolugadajaso.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/1/0430/3906/4225/files/ruliguvogasadokovisivigob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5540/7511/files/wepisabegotawulelusifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1563/files/17547053429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7567/4012/files/66194438638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/gogedudatetok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2590/8383/files/nojixeje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7840/9639/files/94654816123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8573/9685/files/ui-_800-_3_xbox_one.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/how_to_invite_people_on_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0278/1083/files/64142989347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2208/1448/files/puzorapifoguwumonazidozug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6277/8263/files/xajasa.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 7

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_off00005a58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A58 5824 bytes
SHA-256: 02917e4f709d62565f7956958dc6e9785cae2d3d5ce819cc8c2610b77d1f4e21
font_01_sfnt_off00006e16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E16 9932 bytes
SHA-256: 71c6ace99d50594de86ab8ad0fdfb7464ad85722a32fb9fe42af36115f8a8c7b

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