Malicious PDF — malware analysis report

Static analysis result for SHA-256 7040157f3b447c3a…

MALICIOUS

PDF

39.0 KB Created: 2020-09-21 21:42:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b12cbec10744a80a00a57ee3e0e625de SHA-1: bf08aa009a7a0970d66ba0febb9eb6334949126d SHA-256: 7040157f3b447c3a138be6c4e5989020dcff7ae99b115035d0533c9e0ae6a23e
184 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to external PDF files hosted on disposable domains. One prominent link directs to `https://ttraff.com/wix?keyword=anh+nguyen+md`, which is flagged as a known malicious redirector. The document's structure and link farm behavior suggest it is designed to lead users to potentially harmful content, likely as part of a phishing or malware distribution scheme.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wix?keyword=anh+nguyen+md In PDF document text
    • http://files.mx.tourofguam.com/uploads/1/3/0/8/130874125/xulefadug_koruvogisene.pdfIn PDF document text
    • http://wavug.centraldrivewaysstratford.co.uk/uploads/1/3/0/9/130969260/toxido_baragolakobalu_vateve.pdfIn PDF document text
    • http://zapefemal.aide4paws.com/uploads/1/3/0/9/130969627/supivol.pdfIn PDF document text
    • http://xoraf.courtneyscorner89.com/uploads/1/3/1/8/131856713/9852797.pdfIn PDF document text
    • http://guluf.loisfaber.com/uploads/1/3/2/3/132302842/9412562.pdfIn PDF document text
    • http://files.citynorasprings.com/uploads/1/3/1/0/131070112/9604318.pdfIn PDF document text
    • http://files.thailandbusinessbrokers.net/uploads/1/3/0/8/130874205/bilowifudixumi_golupufeluxokek.pdfIn PDF document text
    • http://files.plumbcogroup.com/uploads/1/3/2/6/132681812/rolikesupog-sepasufedabuna.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://4fa40a14-ba75-472e-9019-ab401041667f.filesusr.com/ugd/197ed4_e96dbe8a9ef34c51b806bad41c8972b7.pdf?index=trueIn PDF document text
    • https://f09bc12d-f945-4e7c-a406-60448cd0858a.filesusr.com/ugd/23a6c3_09e93b2481ae45c8a4d546960cffd80c.pdf?index=trueIn PDF document text
    • https://7c0aa0a0-97fd-4787-b70a-ec92e23dee31.filesusr.com/ugd/9c43ec_94b8a56f4902485da37f2706574437b4.pdf?index=trueIn PDF document text
    • https://7266b4eb-65f4-4260-b113-a180da46e1aa.filesusr.com/ugd/5899d5_ae314d9bbdb5400590195a8d71090753.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/gokekuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8266/9464/files/cdf_vs_vs_pmf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9942/8766/files/49510946094.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_off000058dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58DD 4812 bytes
SHA-256: 796f913c45c75cb8896be4b116440459d3ee30fed4ea99a0dfcd7466ac625413
font_01_sfnt_off00006922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6922 11272 bytes
SHA-256: 36030e864fce7a184da3dcd4ad1723c57d2be3f5895e469fc9beb77ca8bf3010

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