Malicious PDF — malware analysis report

Static analysis result for SHA-256 1755dba3d3aa4353…

MALICIOUS

PDF

428.6 KB Created: 2020-08-10 11:07:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7171e509bb235aecece4b99f9a3e8079 SHA-1: ed2758ae7e5511c154a2e12fa98566774679f371 SHA-256: 1755dba3d3aa4353d2150a97f0fc7e232b132b0b1392d614888363a27bd1a7a5
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains heuristics indicating it links to malicious redirector infrastructure, specifically a URL used for SEO-based phishing or malware distribution. The document body, though heavily obfuscated, contains the same URL, suggesting an attempt to lure the user into clicking it. No scripts were extracted, but the presence of malicious links points towards a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9870

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.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=pathfinder+playtest+bestiary+pdf In PDF document text
    • http://files.kollytrendz.com/uploads/1/3/1/6/131606262/84e6c73d7f8.pdfIn PDF document text
    • http://files.ricrodriguezfiction.com/uploads/1/3/1/3/131380842/zufixewomigixo.pdfIn PDF document text
    • http://files.hannahjudson.com/uploads/1/3/1/1/131163533/6559444.pdfIn PDF document text
    • http://files.elementaryethnicstudies.com/uploads/1/3/1/4/131454317/6513144.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/1/0437/8640/4000/files/vuvufiwotirudunoneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0565/4678/files/fipogigebutanuvaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1522/files/43430088825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0675/3948/files/gabebosivivitemiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1750/1852/files/49316396794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6946/2935/files/avg_activation_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2992/1943/files/16699993304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9162/4096/files/73525376483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5864/1573/files/resunelijero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8871/4653/files/jack_lalanne_power_juicer_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6355/8815/files/endorser_addendum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/kesosam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7997/5591/files/domadifumekom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/satane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4319/1969/files/91900609418.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 1

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_off000662c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x662C4 5372 bytes
SHA-256: 8efb96bf3fbcdc8bf3d5ebdee4c8ff10760b9630e9fe24f5ba454f3b126d8069
font_01_sfnt_off00067505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67505 14312 bytes
SHA-256: 64a23859b7789a2889c50606caa64a63944dddffe87c7e809b864c49857b02b4

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