Malicious PDF — malware analysis report

Static analysis result for SHA-256 7404b322a7b34c76…

MALICIOUS

PDF

38.4 KB Created: 2020-08-09 19:39:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4b94ef36a19e5173491fc82acaf4c610 SHA-1: 6f8236f2c6cb4e6ae3d3be424a39b04a5d2b6acd SHA-256: 7404b322a7b34c76bf8cf5233e88682e3e52aedf56c1d53de2d0122807564be1
194 Risk Score

Malware Insights

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

This PDF file contains multiple embedded URLs, with a critical heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=game+over+adele+parks+pdf'. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files hosted on various domains, suggesting a link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.

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=game+over+adele+parks+pdf In PDF document text
    • http://files.adulttoyclub.com/uploads/1/3/1/4/131482988/nubogizoweguman.pdfIn PDF document text
    • http://files.hypnotherapyforliverpool.com/uploads/1/3/0/7/130739616/divemosadaxojusefako.pdfIn PDF document text
    • http://files.jennyroeselustick.com/uploads/1/3/1/0/131070469/878324.pdfIn PDF document text
    • http://files.catcollaborative.com/uploads/1/3/0/7/130740018/deluw.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/1/0432/5690/5885/files/wuwuwevalegovulosuvosas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7827/0619/files/78292719970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/44091937652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8051/5745/files/figaropa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6859/7158/files/duzubovidabonisewisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0080/7070/files/81870375567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1018/6654/files/36566400267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8164/4697/files/97646961871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5768/4375/files/wanuweteresuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0216/6428/files/calcium_rich_food_list_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6433/6290/files/31263495594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0963/8553/files/antisocial_y_asocial.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_off000057ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57BA 5344 bytes
SHA-256: 6a151ddbd0067a14a6af7e3db4c8b19337a773bc643a76d8b9789e118f492534
font_01_sfnt_off000069e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E0 10332 bytes
SHA-256: 478143ad6ea5dbe30bc70e33274ef077340456b26fdf21005249413cbd32de06

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