Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ad2d93522c9ff09…

MALICIOUS

PDF

39.0 KB Created: 2020-08-23 20:46:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1a3f9fc56e9b0c8020f44c35fc987f1 SHA-1: 1a92a173e9b0433fe3fc2b73d55767fbccbd36e1 SHA-256: 6ad2d93522c9ff0966e439bb5702edd6de1010af3d746705c765322f8e7bb75f
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=study+timetable+template+in+excel'. This redirector is likely used to obscure the final malicious destination. The document body and heuristics indicate a phishing attempt disguised as a useful template, aiming to trick users into clicking the malicious link. No scripts were extracted, but the presence of embedded URLs and the ML classifier's high confidence suggest a 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=study+timetable+template+in+excel In PDF document text
    • http://towebet.stoneofhopeyouth.org/uploads/1/3/1/4/131409236/2c949748ced5e.pdfIn PDF document text
    • http://files.idzea.com/uploads/1/3/1/4/131453194/60eb7d98eec6ef.pdfIn PDF document text
    • http://files.thecenterforhopeif.com/uploads/1/3/2/6/132696621/7637173.pdfIn PDF document text
    • http://files.womensvaad.com/uploads/1/3/0/9/130968943/sositake.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/1/0435/8343/9011/files/pdf_advertising_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4412/3303/files/medical_biochemistry_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5559/5172/files/gta_5_cheats_pc_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4538/8442/files/89088360663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mapitawaluzosamorexub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4243/1395/files/86658060923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9027/2675/files/52828011504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8216/1053/files/6679077537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6621/2003/files/razaxikivaz.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_off00005b7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7F 5356 bytes
SHA-256: 6d8dc160111c3588739782c79fbf54ee989ebd76ce9072d4f7ff4cc18838603c
font_01_sfnt_off00006da1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA1 9864 bytes
SHA-256: ca5f80088f3461c5d326122a63611e6793af6f3c4047304a434c42bb0157035f

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