Malicious PDF — malware analysis report

Static analysis result for SHA-256 619db1dee8b1cd52…

MALICIOUS

PDF

45.3 KB Created: 2020-08-12 13:53:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a33cf0c24ce2d4c142e7100c833c8711 SHA-1: 8fe579b4db12dccd4031c5e7d44e07c4ba87fef0 SHA-256: 619db1dee8b1cd5294b60b96eb18f6e933d7ef8db30e51cbedd8429347eeb654
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link and a link farm, indicating an attempt to direct users to malicious infrastructure. The embedded URL `https://ttraff.cc/wb?keyword=alimentos%20con%20y%20sin%20gluten%20pdf` is a primary indicator of this malicious intent. The ML classifier also strongly flagged this PDF as malicious.

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/wb?keyword=alimentos%20con%20y%20sin%20gluten%20pdf In PDF document text
    • http://files.saikmusic.org/uploads/1/3/2/7/132740415/67c8893d65fe7.pdfIn PDF document text
    • http://files.climbingflorida.com/uploads/1/3/2/8/132815892/9797245.pdfIn PDF document text
    • http://files.hillviewchristian.org/uploads/1/3/1/0/131069879/fb6c56fc6.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/1/0438/0252/5856/files/769425304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5063/files/63759758495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2860/3295/files/vimigazefukonexiguvuwukap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3646/7619/files/movenetofabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8070/4405/files/faxuzinajozexafamoturozod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3120/5787/files/advances_in_k_means_clustering_a_data_mining_thinking_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6533/5190/files/sugotozetigizeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lujodegiduwidixerilaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7797/4678/files/campbell_ap_biology_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6786/6278/files/37404957344.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_off00007114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7114 5260 bytes
SHA-256: 3ebb8ba25f16df0bfab7e7d5e695f1183681dec62dd8088c00cc5694d3bf5eb1
font_01_sfnt_off000082f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82F8 11260 bytes
SHA-256: be81d0d7dd11a85405f12ad2949bb69f426aff35c5b3b7cf1081587353de2aa6

Open this report in the interactive analyzer, or submit your own file for analysis.