Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd4e8b5c1eaf6218…

MALICIOUS

PDF

35.8 KB Created: 2020-08-28 12:04:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02699a78394d137551471ba3f09d19f0 SHA-1: 3d72f3ee8202b18573db9a5cceed22deced5fbf8 SHA-256: dd4e8b5c1eaf621899fb7fef37cfe02a5f0ec71ef75f1e0a4c1058731550fada
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes text suggesting a lure related to wealth ('Viva como un verdadero millonario pdf'). The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a likely phishing or scam attempt to direct users to malicious content.

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=viva+como+un+verdadero+millonario+pdf In PDF document text
    • http://lawonutav.studioeworldwide.com/uploads/1/3/1/4/131406687/favolibav-jaziforilo-witavazital.pdfIn PDF document text
    • http://jetunax.calaverasarts.org/uploads/1/3/2/7/132741100/3500105.pdfIn PDF document text
    • http://files.aoerecording.com/uploads/1/3/1/4/131407080/fakipoxafobifugev.pdfIn PDF document text
    • http://nebaki.relaxandsucceed.net/uploads/1/3/2/6/132695384/823307.pdfIn PDF document text
    • http://direbaka.ysk-chb.com/uploads/1/3/1/4/131406676/tamazemowesojimidal.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/1/0435/3510/6203/files/network_security_firewalls_and_vpns.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3029/0327/files/abattoir_full_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6081/3208/files/60793030859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7971/6264/files/active_and_passive_fire_protection_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/fanupuredatob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8325/9301/files/77623871426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7313/2954/files/tagireb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0877/0726/files/bitibid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8276/6743/files/warhammer_almanach_mistrza_gry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0472/3055/0181/files/sustantivo_colectivo_de_ganso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/brownells_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0456/9822/0188/files/fallout_4_ideal_quest_order.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_off00004bcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BCC 5148 bytes
SHA-256: ca0fce304b834c9ce3839ae90fe75f548cb41b84822a8d173a6c992a8fd986f5
font_01_sfnt_off00005d3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D3E 11296 bytes
SHA-256: 002795b9151f0d7e7c158fd840b4cedb9ae66fd9bb1bbc130d58b3c43846c380

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