Malicious PDF — malware analysis report

Static analysis result for SHA-256 a74c72e33eaa7d58…

MALICIOUS

PDF

44.0 KB Created: 2020-08-02 02:52:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bece28c5eeb1df6c2814b24f9336a1d0 SHA-1: d9c885d30f8a8616297a51cafe2c71e6edbe123d SHA-256: a74c72e33eaa7d580c69eb03925b76eae110893c9f435500b915075e1fd9b4ba
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, many pointing to Shopify domains hosting other PDFs, but one critical link redirects to a known malicious infrastructure at 'ttraff.cc'. This suggests a link farm or redirection tactic to obscure the final malicious destination. The document body, though heavily obfuscated, contains the same malicious URL, indicating an attempt to lure the user into clicking it under the guise of providing Sonic Pi examples.

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.cc/pify?keyword=sonic+pi+examples In PDF document text
    • http://files.charlotterodenberg.com/uploads/1/3/0/7/130775551/tumopef-koxisa.pdfIn PDF document text
    • http://files.greenbushhistoricalsociety.org/uploads/1/3/1/1/131164231/mipawodalu.pdfIn PDF document text
    • http://files.boothillproductions.com/uploads/1/3/2/3/132303238/34aca5933c91.pdfIn PDF document text
    • http://files.mrtaylorsbandroomatgtacs.net/uploads/1/3/1/4/131438137/3238878.pdfIn PDF document text
    • http://files.missingpersonsrv.com/uploads/1/3/0/9/130969926/ximugil-gofot-lizeniwan.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/1/0432/8259/6000/files/19568091555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/71135401618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5095/0041/files/40622803752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5517/8150/files/xilopoxuxufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0042/9731/files/nagilewutalazovofikog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wupukibasabozuxijixosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2960/0155/files/python_collections_counter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3006/8898/files/69033869428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86556218032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9691/5616/files/23359091643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8765/8141/files/dimosagapekajujexomipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gaxasukazojolivuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0849/1673/files/razekibedilovoretamibugo.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 6

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_off000068ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68BA 5152 bytes
SHA-256: e3dbe4a0b74801ec9d2933832f94ca52eec64d15cad84736b2c2c3bed97aa2d1
font_01_sfnt_off00007a3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3C 12660 bytes
SHA-256: a04e5237ceedccaae8b1698040451c57e8251e3f72eebaabefc268a6f52b1317

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