Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3a65248b3a91933…

MALICIOUS

PDF

35.1 KB Created: 2020-08-11 15:59:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89c2be71682dc7a186987b54927dc15d SHA-1: 4a0372c1380ea9d94eff872f4e9775c159197a1a SHA-256: d3a65248b3a91933b461af6f405d87443b9a768280eb7846cab37d5ff9de0096
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.cc). This indicates a social engineering attempt to trick users into visiting a malicious URL under the guise of downloading a PDF. The document body is heavily obfuscated and contains the malicious URL, further supporting this attack pattern.

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=mixed+modal+verbs+exercises+advanced+pdf In PDF document text
    • http://tirubepis.reederang.com/uploads/1/3/1/6/131636725/lovupuwiwakezej.pdfIn PDF document text
    • http://zimuju.ebyogi.com/uploads/1/3/1/4/131483281/9337097.pdfIn PDF document text
    • http://files.cosmeticsupport.com/uploads/1/3/1/4/131409717/tusimun.pdfIn PDF document text
    • http://files.scoutingadventure.com/uploads/1/3/2/6/132681698/pozuf.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/1/0432/0801/6027/files/19127325506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0317/8148/files/bosch_car_service.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/5667/2418/files/convex_hull_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8545/4750/files/59617785626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8493/8390/files/15506448084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7140/6237/files/32711082871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/types_of_sorting_algorithm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3134/6856/files/mejix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7323/9195/files/zolpidem_eurofarma_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7837/6853/files/96189306953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3909/6986/files/tekulizutokuxemavani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4161/9105/files/sure_universal_remote_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3425/5258/files/how_to_make_stonecutter_minecraft.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 6

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_off00004a4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A4F 5576 bytes
SHA-256: 4d3dd505be272e6eea9fe45bb00542273c161783659e8404b12cf61f04d02c8f
font_01_sfnt_off00005d36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D36 10056 bytes
SHA-256: 0ff3c2144ae453adaedbb9f341735bd6ddab9682c09bf5c1a5bd3162e8bfc1cd

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