Malicious PDF — malware analysis report

Static analysis result for SHA-256 d885120c89bae1ff…

MALICIOUS

PDF

38.2 KB Created: 2020-08-02 06:03:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d34023834b7ef39f1d06d0aa2cd34ec SHA-1: d096811bff7aa7ca2baa9dd1efddb58d93957961 SHA-256: d885120c89bae1ffbf9df1b102cf15422eabe7f59d328925e243907d19d0585e
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body contains obfuscated text and numerous embedded URLs, including a suspicious redirector URL (https://ttraff.cc/pify?keyword=vizio+vw+26l) and many links to Shopify-hosted PDFs, suggesting a coordinated effort to distribute malicious content. The primary attack pattern involves luring users to external sites via these links.

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=vizio+vw+26l In PDF document text
    • http://files.mvcsc.net/uploads/1/3/0/7/130776592/gaduk_gegujupawaku_rowovakovol_buzetuwu.pdfIn PDF document text
    • http://files.keewahla.com/uploads/1/3/1/3/131379268/bc27e06cbfd.pdfIn PDF document text
    • http://files.sporkbooks.com/uploads/1/3/0/7/130775138/305376.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/1/0434/0046/2501/files/muzafaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8365/3527/files/47385920934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4008/6935/files/wewekarowawoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2103/1832/files/oathbound_paladin_build.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/mebawugorofubigigaxix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0753/1432/files/babufepebetinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2070/6204/files/sazagawekuxinis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4117/7248/files/square_root_algorithm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1234/8315/files/gojomugibefujevujazep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7016/7966/files/4283380469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5540/7511/files/penakivatawogewonowu.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_off0000545a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x545A 4648 bytes
SHA-256: b95deebedcddeebd76767b4d429cc3073b19f2143b3f5a57ec1ae1e66abb5438
font_01_sfnt_off0000646c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646C 11644 bytes
SHA-256: f7c35b9e96c29854ac1525e92d4b71ce354eb69cf5c747a282ef3412ddb5d2fd

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