Malicious PDF — malware analysis report

Static analysis result for SHA-256 8431697dbe741a25…

MALICIOUS

PDF

42.7 KB Created: 2020-08-15 00:20:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 495c21e447adf1f0e9f0b03fadf02a90 SHA-1: 3f3662b95a01583159aef50c8717a9a8d93b4619 SHA-256: 8431697dbe741a2556a34adf81fada04a5ad20032458e7b1fe4df7de1729dd06
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a source for 'online hd video er for android'. This indicates a phishing or malware distribution attempt. The document also contains a large number of links to other PDFs hosted on Shopify, suggesting it is part of a link farm designed to improve SEO for malicious content. No scripts were extracted, but the presence of embedded URLs and the redirector link strongly suggest a malicious intent to redirect users to harmful content.

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.ru/pify?keyword=online+hd+video+er+for+android In PDF document text
    • http://gadeva.larabranca.com/uploads/1/3/0/7/130775195/tizoxiretak.pdfIn PDF document text
    • http://files.bethabarachurch.com/uploads/1/3/1/4/131437873/kafidime_jisutukixobif.pdfIn PDF document text
    • http://xibosukuf.sweetestdreams.org/uploads/1/3/0/7/130775734/nirefevoxudogon_dubebise_fezobelada.pdfIn PDF document text
    • http://files.lizastories.com/uploads/1/3/0/7/130775387/6b4fb799c5.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/1/0433/0727/0297/files/38620753488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9729/1942/files/automatismos_industriales_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3461/9549/files/garmin_forerunner_405_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2969/0525/files/how_to_use_webhooks_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8036/7780/files/rebawoxadadaridozusef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5531/7149/files/topozabixafipilotisenutup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5598/8387/files/furoralutuxowofutusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8549/6482/files/gapufifapimesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2536/7193/files/zunedazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4532/8808/files/febawosorokusunug.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 3

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_off00006a0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A0E 4904 bytes
SHA-256: 864448db9509dbae491a687c07646df47926ddfb001a2580fd0328fba678a8e8
font_01_sfnt_off00007aba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABA 10404 bytes
SHA-256: 61828a5cf606d7a040ea55472d31d6ed278cbd2588db26d7b8ee305bd678b97f

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