Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ffc0c6b39cbc37a…

MALICIOUS

PDF

45.7 KB Created: 2020-09-13 12:10:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 863cb2d83e4646286a05414c76fafff0 SHA-1: 786a73d34014d7af21b433d73aa419366c285623 SHA-256: 3ffc0c6b39cbc37a89e006eb20e9fd748ba5e7723796faf9dea128ae5443b7a3
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically disguised as a shader download. The primary malicious URL is https://ttraff.club/pify?keyword=no+lag+shaders+1.16.2. This indicates a social engineering attack aiming to trick users into visiting a potentially harmful site. No scripts were extracted, limiting the analysis to the document's structure and embedded 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.club/pify?keyword=no+lag+shaders+1.16.2 In PDF document text
    • http://furuka.capspa.org/uploads/1/3/2/6/132681862/rebawafatesiwiz_figonemopexu_zapidubap_jates.pdfIn PDF document text
    • http://files.swastikpearls.com/uploads/1/3/1/6/131636845/fomojuri-xefuronewumoxow.pdfIn PDF document text
    • http://files.athenasbymeg.com/uploads/1/3/2/6/132695388/fixubowujudu-mabedosofaru-pupilisinami.pdfIn PDF document text
    • http://ladeko.biz-skills.com/uploads/1/3/1/4/131406676/xobenudexobefupure.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/ca300b_80d27238a5fd4a77b0f8e47e82884000.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/47b1e8_966b799752e2416d8960ecd6485fb6c5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/77eba6_f2ac1c6e5eef4435ba6ae67e3d5bc6b3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3077/files/john_deere_650g_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3908/7002/files/tamasha_movie_hdfriday.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2050/7546/files/40452324404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9064/1045/files/9162870476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3220/7782/files/great_gatsby_chapter_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1071/1971/files/update_windows_10_terbaru_manual.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_off000074d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74D0 5424 bytes
SHA-256: 3b9164aa0e58261f5524c6ecf2ad8f22b4bf83bdef6fe26d515b940210f39b9b
font_01_sfnt_off00008747.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8747 10308 bytes
SHA-256: 743bc2a33c39a4453375166691155899632228032af01bcb90d9daf43080be48

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