Malicious PDF — malware analysis report

Static analysis result for SHA-256 4307e6dcbf2fb758…

MALICIOUS

PDF

44.8 KB Created: 2020-08-27 14:54:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e702e5247a6ad2f9aa9c6daa937877b SHA-1: 1b58781662e9cc2641895c1e18da4f8dbbb47b9e SHA-256: 4307e6dcbf2fb758cf257f1d01f82c3cb87d38a2da6489ce60e27488833c785c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to external resources hosted on platforms like Shopify. One critical heuristic identified a link to known malicious redirector infrastructure at `ttraff.cc`. The document body, though heavily obfuscated, contains references to the router and the redirector URL, suggesting a lure to potentially malicious content or phishing pages. No scripts were extracted from this sample.

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=tp-link+ac750+archer+c20+wireless+router In PDF document text
    • http://files.thecorpsridingclub.com/uploads/1/3/1/4/131482884/c8b39d5253135.pdfIn PDF document text
    • http://files.msimone.com/uploads/1/3/1/4/131453414/nidodi.pdfIn PDF document text
    • http://rufeb.bbqheaven.ca/uploads/1/3/2/6/132681464/9198417.pdfIn PDF document text
    • http://files.active-life-chiropractic.com/uploads/1/3/1/8/131857402/5020644.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/1/0433/8758/4661/files/granny_nullzerep_mod_menu_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1570/7551/files/final_fantasy_tactics_gba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0272/4506/files/84087380624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4147/0117/files/vumamiterozuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/byomkesh_bakshi_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1280/6040/files/78144157353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8777/3342/files/doctors_note_for_work_absence_template.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_off000064e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E1 5636 bytes
SHA-256: 7838065ed7edfc3a2dd8ef71c7fe8d0a0e3114443d7fa49db84a658e4998e817
font_01_sfnt_off0000781a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x781A 15164 bytes
SHA-256: 2b28b3bf1f754bdd00a0796df03176e7ff87c95be57761cbf812b5e53ee4f751

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