Malicious PDF — malware analysis report

Static analysis result for SHA-256 97b3b84cc95b8e96…

MALICIOUS

PDF

52.5 KB Created: 2020-08-16 22:09:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 671de00d568111fda16ede7e75d47e68 SHA-1: 406780dc46ef47cc83a9e82f8a5e663a532d9415 SHA-256: 97b3b84cc95b8e9619107b0bb01bc4c399855c41844a3e553967dc44119c2d4e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=terraria+crafting+guide+pdf'. This URL is presented within the document body, disguised as a Terraria crafting guide. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results or distribute malicious content through seemingly benign links. No scripts were extracted, and the document body is heavily obfuscated, but the primary intent appears to be directing the user to a malicious site via the crafted link.

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=terraria+crafting+guide+pdf In PDF document text
    • http://xixube.fumcsealy.org/uploads/1/3/1/3/131384281/4144989.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/1/0432/7964/6878/files/centrifugal_compressor_design_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0017/6544/files/96988482183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6559/7342/files/bash_script_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/18946215248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1450/4093/files/41205127896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9940/5979/files/thinking_about_dilations_mathbits_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6041/0021/files/55611287855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/40637788586.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://terraria.gamepedia.com/Guide:Crafting_an_Ankh_ShielIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3C 5060 bytes
SHA-256: 879ff834e780a9dbc3c10b1100d9263632963402b65645defb4590e8f988b8a1
font_01_sfnt_off00007e7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E7C 15416 bytes
SHA-256: 13bdad68eb87529b8bbfa0670c49cd1be8ba55b7bd1450f6bb69acf07390c663
font_02_sfnt_off0000ae53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE53 16232 bytes
SHA-256: b2cbfceaf44fc4a56d1321c5677f125dfbde6a5f8c873b6a17361dd7c2aa5302

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