Malicious PDF — malware analysis report

Static analysis result for SHA-256 6403c35456bccc30…

MALICIOUS

PDF

42.9 KB Created: 2020-08-18 19:03:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a76a12605a5b600f102b9666234abf82 SHA-1: 32326807504c81c72b49bdcb627fb7f0dc730dd4 SHA-256: 6403c35456bccc30a02b31897d64492f2334534e447f21eca17b28a3c00b481e
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though obfuscated, contains text related to 'Belleau wood tour guides' and the malicious URL, suggesting a lure for phishing or malware distribution. The ML classifier strongly indicates 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.cc/pify?keyword=belleau+wood+tour+guides In PDF document text
    • http://gexuz.stanheptinstall.com/uploads/1/3/0/7/130739204/bitan.pdfIn PDF document text
    • http://rupar.centurymusic.ca/uploads/1/3/1/6/131637814/bezafexewibot_lovukovexawabem_zupijobelilibej.pdfIn PDF document text
    • http://files.okcstairclimb.com/uploads/1/3/2/7/132740249/02b23ba.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/1/0440/4117/5190/files/mexogopagonum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9363/8822/files/diwuwenakaxise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2652/0986/files/edit_text_in_bluebeam_revu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0830/8886/files/canon_ae1_program_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8907/6117/files/91394957577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1548/8163/files/zaratustra_nietzsche_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8260/2913/files/alcohol_units_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5104/8357/files/poe_incandescent_heart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6459/7397/files/31768658097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3907/2161/files/lijoduxabovu.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_off000069e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E2 5132 bytes
SHA-256: 9dee9c37924458701767c7cdfa365f885b94742bd2734fa791843ee9651d38c6
font_01_sfnt_off00007b73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B73 10304 bytes
SHA-256: a07d741a1d9fea0fa67602c1d9311e9bb2f0a7d979296b9bfe369ca3be806feb

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