Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c0cc7472df2399d…

MALICIOUS

PDF

44.4 KB Created: 2020-08-19 10:45:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e9db71a66fd5163c10f587407f4922f SHA-1: 66e26aa64d7507ae225f3c4f3254b9fae71252ef SHA-256: 7c0cc7472df2399d3b311d279d61714020ad3f8ccd8aa492dea9a4e538355aa2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to an SEO redirector, which in turn points to a large number of other PDF files. The primary redirector URL is https://ttraff.com/pify?keyword=case+study+interview+questions+and+answers+pdf. This behavior suggests a link farm or phishing campaign designed to drive traffic or distribute further malicious content. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=case+study+interview+questions+and+answers+pdf In PDF document text
    • http://files.reikiwithlouise.com/uploads/1/3/2/6/132682813/3120327.pdfIn PDF document text
    • http://boniz.vintagewoodworkingtools.com/uploads/1/3/2/6/132682663/wezafekafe-vonazazeka.pdfIn PDF document text
    • http://files.southhickoryhill.com/uploads/1/3/1/4/131454521/6612d2575b25.pdfIn PDF document text
    • http://zidodi.meganssewingroom.com/uploads/1/3/1/4/131437130/8974714.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/1/0435/5280/0920/files/gitufifuxenekezokir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7794/1913/files/98733273331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/migebakiziferobotababoviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8865/0146/files/jejixajebugaziwokog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6641/6534/files/chakras_for_beginners_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuvekalododit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/7402/2550/files/forex_swing_trading_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3152/7575/files/68132885706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1329/7560/files/tixojuwazuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8137/1543/files/fetufasigazasanis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9632/4758/files/wixepazosalad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/kabidasajizazavagin.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 4

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_off000070b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B6 5288 bytes
SHA-256: 4f5c98f6adc91c877ac65a786658a83fdb74c8a1005dc3424b56e40dbe2af34f
font_01_sfnt_off000082d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82D8 9980 bytes
SHA-256: 7fdeb2fe0685f5df7085875a9180fd91b02fd11e0d258c840e8ebd323b50a3f1

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