Malicious PDF — malware analysis report

Static analysis result for SHA-256 b072d077b4062044…

MALICIOUS

PDF

41.7 KB Created: 2020-08-10 15:21:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2cc488c28b5d0b41c749905ec1add36 SHA-1: 495389b473f660683445e0a8f778c657e582629c SHA-256: b072d077b4062044276426b0777dcaf72d9fa73f6feeef3ab1d2c2923d62df0b
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.com, disguised with a lure related to Harry Potter sheet music. This indicates a social engineering attempt to redirect the user to malicious content. The PDF also functions as a link farm, with numerous embedded links pointing to various PDF files, likely for SEO manipulation or to obscure the malicious redirector. The ML classifier strongly flagged this PDF as malicious.

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.com/pify?keyword=harry+potter+theme+song+easy+piano+sheet+music+pdf In PDF document text
    • http://files.treenailsoakproducts.com/uploads/1/3/0/7/130776276/3748083.pdfIn PDF document text
    • http://files.lorin-wilson.com/uploads/1/3/0/7/130739664/pilorivuferifevirif.pdfIn PDF document text
    • http://files.med2u.com/uploads/1/3/1/3/131398358/duwawukozamuxom.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/1/0432/2318/7614/files/kuzukirizamizulajib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3798/2869/files/xomoviwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6939/1527/files/causes_of_internet_addiction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/xetozofapuxewefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0447/2992/files/equivalent_ratios_word_problems_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5644/7136/files/xavozerego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9143/1325/files/the_concise_dictionary_of_christian_theology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5748/6753/files/orange_tesla_pill_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1361/5264/files/iron_on_patch_instructions.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 3

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_off0000637c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637C 5600 bytes
SHA-256: 219ae15ffe7d9dd276cf15220209d21925cfa80451396ac1f998361b9ab8b86f
font_01_sfnt_off00007667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7667 10384 bytes
SHA-256: 51d521c8ab75444f9c117a83c78a2abddb71c3178cf5b0cc48c9700b9af6a763

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