Malicious PDF — malware analysis report

Static analysis result for SHA-256 14144e933e8f2a4a…

MALICIOUS

PDF

42.1 KB Created: 2020-08-19 11:26:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fc7a4508074ed28349670d12d6d9937a SHA-1: e4c2ed37eced9b5b842b309c196311d600023d1f SHA-256: 14144e933e8f2a4a1837d3b949d4f0081f4e3fadfd0d535e02ab4e2874ac43ec
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating an attempt to lead the user to malicious content, likely for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious. The presence of a 'download button' lure further supports a malicious intent.

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=java+7+32+bit++archive In PDF document text
    • http://files.glacier-basecamp.com/uploads/1/3/1/4/131406849/sutajironixa.pdfIn PDF document text
    • http://rafusubet.manitobaleadership.org/uploads/1/3/1/3/131398020/datunovilideg.pdfIn PDF document text
    • http://files.spotlightfife.org/uploads/1/3/1/3/131379049/semufulaxolimuwefon.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/1/0433/4429/8133/files/4293423414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0456/4742/9799/files/lease_agreement_form_samples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16711599054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/pediatric_svt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0357/4432/files/12516270520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2310/4162/files/88306330135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6880/1702/files/git_remove_directory_from_tracking.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7439/6063/files/formule_aire_d_un_cone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7757/4562/files/64720776348.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_off00006651.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6651 5240 bytes
SHA-256: 5c3434d9033d7eca3c0fa7383b9545f4c133e2f259ea41c0aa27c7ca5774cfba
font_01_sfnt_off00007822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7822 10540 bytes
SHA-256: 816c52bf46293944c2d796f33d4092aa515271e7b27fdf9fff8f5533b952b62c

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