Malicious PDF — malware analysis report

Static analysis result for SHA-256 7545efd8bd028633…

MALICIOUS

PDF

427.1 KB Created: 2020-08-10 13:23:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 23d6213466324d11c35b130c6739d4c7 SHA-1: b9afdc91dab744408f9121cd7708cc193d57aa52 SHA-256: 7545efd8bd028633d369ee0c0a89c38b5c5f31174d341e95a0c213bb2ad49466
142 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known redirector infrastructure, specifically 'ttraff.com'. This redirector is likely used to obscure the final destination, which is probably malicious. The document body, though heavily obfuscated, contains text that suggests an urgency lure, further supporting a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.com/pify?keyword=casebook+of+sherlock+holmes+pdf In PDF document text
    • http://gunisij.pictalie.com/uploads/1/3/1/4/131437987/nidomok.pdfIn PDF document text
    • http://files.thinkingcatholic.net/uploads/1/3/0/7/130739621/2873758.pdfIn PDF document text
    • http://files.richardreuser.com/uploads/1/3/2/6/132681456/c336422cb4c1.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/1/0432/6726/0582/files/xasoxefamosexituwigil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5598/0439/files/fapujalaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0548/0858/files/pdf_bookmark_tool.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4763/3575/files/daxuruxebobanokus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8617/6675/files/pisarorabinerabebej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0638/5558/files/50388703254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5704/5916/files/divajok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7496/8997/files/lawiveme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1748/3934/files/ripasosujisobagukovuvesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6303/3502/files/xiviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7399/4905/files/sovuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1094/0328/files/business_quotes.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_off000667c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x667C4 5504 bytes
SHA-256: a02c3389b2fba9ad5d5866ebe4d95f8465db144be1cb9740b90a5e395a61bcf9
font_01_sfnt_off00067a4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A4A 10324 bytes
SHA-256: e0ab831730db0491786ca013768eec189c2f5a5285c5762c77db0cceeea99a2f

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