Malicious PDF — malware analysis report

Static analysis result for SHA-256 d688d3df4bc00c9d…

MALICIOUS

PDF

46.1 KB Created: 2020-08-02 17:03:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f3276be35c56987740e36c21c02aabcc SHA-1: 1fb023293e6e40557f2ddc414de55131ed86a3df SHA-256: d688d3df4bc00c9d4e50dd6d2291e7882ddd54d2a662ae2a21a1cb56ee225a8b
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector pointing to 'https://ttraff.ru/pify?keyword=unearthed+arcana+5e+pdf'. This suggests a phishing or scam attempt where the user is tricked into downloading a file that ultimately leads to a malicious domain. The ML classifier also strongly indicated maliciousness.

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=unearthed+arcana+5e+pdf In PDF document text
    • http://files.stpaulofthecrosslamirada.org/uploads/1/3/0/8/130814208/negojonawowas.pdfIn PDF document text
    • http://files.147east.com.au/uploads/1/3/0/8/130874612/fb46dd.pdfIn PDF document text
    • http://files.unityphilly.org/uploads/1/3/2/7/132710748/zusafabifekosiv.pdfIn PDF document text
    • http://files.afterorthorevenue.com/uploads/1/3/0/7/130776001/vexikelara_pilavevumofupid.pdfIn PDF document text
    • http://files.fingerhutcakes.com/uploads/1/3/0/7/130776123/zozev.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/1/0430/1144/0803/files/gotoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doworefobose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36149341097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7223/3376/files/49084888446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3095/4655/files/mopedemimizubuxafogal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3807/9138/files/tazukibamuvejolawafinebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7211/9193/files/fobufalufefeluniluru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6572/0486/files/19726754826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/23310332964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5969/2198/files/69491892619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5238/3907/files/xemosakudowageguron.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 4

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_off0000769f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x769F 5148 bytes
SHA-256: 7fdaa1e99239df244bd1a1bc7d0a490ef3190282b288d66280cbf0c0e51cee77
font_01_sfnt_off00008828.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8828 10284 bytes
SHA-256: aa0da10598bd9e88c6ccf20ce02c70b3724027c92e7df949eac5f9dd06985f59

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