Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ca5e04d26cee9a0…

MALICIOUS

PDF

41.7 KB Created: 2020-08-12 00:02:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e926233aa7f55b2754e9a8478037897 SHA-1: e74b5932679c9825945bd15526a94b3c9295af91 SHA-256: 9ca5e04d26cee9a008065836506f4bf30505667ac5ff161154f57b7ee9e5d975
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. It also exhibits a PDF link farm, with many links pointing to Shopify-hosted PDFs, suggesting an attempt to game search engines or distribute content. The presence of a 'download button' heuristic further supports a lure-based attack. The document body contains the malicious URL, reinforcing the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=3d+pdf+to+step+free In PDF document text
    • http://files.jackyuhuazhou.com/uploads/1/3/1/3/131380759/kaxoz.pdfIn PDF document text
    • http://fiweb.davidwaynelaymanphd.com/uploads/1/3/1/4/131407535/sajad_jivagawu_sevekivitipi.pdfIn PDF document text
    • http://files.moniquemariegelineau.com/uploads/1/3/2/3/132303230/4111344.pdfIn PDF document text
    • http://denogufep.thegonnermans.com/uploads/1/3/1/3/131383377/68ec7ebb313cdea.pdfIn PDF document text
    • http://jewekipuk.andyjohnsonpsychlab.com/uploads/1/3/1/6/131637814/a19ed989.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/1/0434/4119/3110/files/regewigod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6367/0939/files/nebezuxexefumepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6176/3480/files/algebra_formula_for_class_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4016/9366/files/58012113768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6944/8096/files/76369850026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0006/9270/files/discord_bold_font.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4944/1687/files/60657828143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7292/9435/files/tidixikudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3848/1320/files/adjectives_and_adverbs_easy_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6735/6824/files/84143245214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/kejotugi.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 8

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_off00006640.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6640 4860 bytes
SHA-256: 7c2402eda4ff67d4415b016ca84c9dc08cddcdc11f36623a3417d741817f2847
font_01_sfnt_off000076d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D9 10376 bytes
SHA-256: 7521854cfa16370d58a6d6b4c5a2066e1800c9382ad5cfe80ec67a1bf823227d

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