Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbad82689f2c1da1…

MALICIOUS

PDF

58.8 KB Created: 2020-08-02 01:26:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7ba04979759a356ea39674ef6148ecc SHA-1: 2bb308065a3ea661b44e5b1268946a23d84bc37b SHA-256: cbad82689f2c1da10dd54736342068c5e9727e09324f758d20bc9d8e5ffc82da
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine visibility for malicious content. No scripts were extracted, but the PDF structure and embedded links strongly suggest a phishing or redirection attack.

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=superman+minecraft+skin In PDF document text
    • http://files.buggytownbirddogs.com/uploads/1/3/1/6/131636954/baf019d40ee414.pdfIn PDF document text
    • http://files.personalcheftony.com/uploads/1/3/0/7/130739621/piraxu.pdfIn PDF document text
    • http://files.scubatom.com/uploads/1/3/1/4/131453198/gozutulogadamulafa.pdfIn PDF document text
    • http://files.barbararussellcatering.ie/uploads/1/3/0/8/130874110/rejal.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/1/0433/6690/8065/files/nodazerukagoxizuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/sowit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4977/7312/files/25458768039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1742/1479/files/34333072422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2583/3884/files/21119982311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9000/9502/files/koripi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0652/4566/files/5._1._2600_product_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0993/1424/files/81221886613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/death_knight_pvp_6._2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0595/0626/files/kazujela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fapodepemiretewuroraga.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 7

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_off0000a786.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA786 5296 bytes
SHA-256: 2c5c1dae287a8c52ab0f72524bb6955aec7c3c21bb3d26c590ed5c416aa013f7
font_01_sfnt_off0000b97a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB97A 10668 bytes
SHA-256: 1bc8b06bb263d56bbea20c3c7d3acf438f7712bf8b852aab7190d9ea0d374cbc

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