Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4c04d990375960e…

MALICIOUS

PDF

47.2 KB Created: 2020-08-16 15:21:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7eee32e798d6082d757556125a25d867 SHA-1: 1f95770678b006abf5a551775910f652c3fb6c7f SHA-256: a4c04d990375960edd448a4e28a9e9f4f14c87fb7862b4febab186c85330af50
242 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link to 'ttraff.ru' is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Windows 10 education iso' and includes the malicious URL. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' suggests the document may also instruct users to execute commands, further indicating a malicious intent to trick users into downloading or interacting with harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=windows+10+education+iso In PDF document text
    • http://files.marketmovesmatt.com/uploads/1/3/0/8/130874629/nuvigure-bufagejiv.pdfIn PDF document text
    • http://golidi.lakesuperiorsdragonsnest.com/uploads/1/3/1/3/131379808/0240a9.pdfIn PDF document text
    • http://files.rjmasters.com/uploads/1/3/1/3/131384081/5444277.pdfIn PDF document text
    • http://luzenulo.redwinepolitics.com/uploads/1/3/1/1/131164243/608b9ba18.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/1/0432/4887/7736/files/40595473335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8461/8653/files/84637323527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1787/1265/files/harry_potter_monster_book_of_monsters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7955/7539/files/romukujadagajidadozuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7868/8674/files/74400014907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6521/2066/files/high_alumina_cement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7807/4022/files/luraburejibuwokopikepiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2106/5640/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7016/7966/files/zemuwatovunakarunijomopel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/79552615388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9721/7440/files/atys_6e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8869/9802/files/cartelle_tombola_da_stampare_gratis.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_off00007b69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B69 5104 bytes
SHA-256: 4e3cfec597ad3caba462f403e0f72252190975d4b09f71180935bf08f77a7656
font_01_sfnt_off00008cf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CF0 10296 bytes
SHA-256: e42b4b654aa1388071f84b782ae500bc220a4401fd165b68e73c3e6900b10895

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