Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0caedfa08bce3d6…

MALICIOUS

PDF

50.9 KB Created: 2020-08-02 17:36:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68dffe55461521affd4f3fe8cc65749f SHA-1: 857ec5e864e299c99c2f37ad28389e66add36c2e SHA-256: c0caedfa08bce3d6d9ffb91da6f3bb0cdba96e80d33ffb48f8304b235040994e
194 Risk Score

Malware Insights

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

The PDF file contains numerous links to external resources, masquerading as 'simple java game codes'. One of these links, 'https://ttraff.ru/pify?keyword=simple+java+game+codes', points to known malicious redirector infrastructure. The document body is heavily obfuscated but contains this URL and other PDF links, suggesting a link farm or redirection tactic to lead users to malicious 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=simple+java+game+codes In PDF document text
    • http://files.twelvelittletales.com/uploads/1/3/1/6/131606343/kowezomelo_tometunor_fuzusularelijo.pdfIn PDF document text
    • http://files.thriveatwork.com/uploads/1/3/1/4/131453221/kewifan.pdfIn PDF document text
    • http://files.dianarobles.ca/uploads/1/3/0/7/130739120/3762790.pdfIn PDF document text
    • http://files.mindfulserenityonline.com/uploads/1/3/0/8/130874629/pezozulaleku.pdfIn PDF document text
    • http://files.sparkfoundationinc.org/uploads/1/3/1/4/131453097/b9ec80b5983631.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/1/0435/5257/1555/files/84406857056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/larilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9951/2231/files/99895907915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4636/2533/files/72499177727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1008/8357/files/zuzovuraselitem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1715/files/8106393467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8129/3221/files/xejimenisikori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1005/6615/files/84970555623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4556/1254/files/xezitorirepuvereresadot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4953/2069/files/i_m_bringing_sexy_back_lyrics.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 8

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_off00007c8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8B 5536 bytes
SHA-256: f1c1e5274f95a34accb3ddf38c5445c1bb38f1b7a8304523b4cc2c7bd7915068
font_01_sfnt_off00008f59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F59 14932 bytes
SHA-256: b426665eb09e474bf696a804074a1b1aec1bf69c72b4926cfbe8d520255501ce

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