Malicious PDF — malware analysis report

Static analysis result for SHA-256 da1512dcb2426a72…

MALICIOUS

PDF

68.4 KB Created: 2020-11-26 05:40:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d3e47553ec070ed9e44b39225e41fe7a SHA-1: 63c6b6fad95ecdbbfcb81eab61d06fc3f7bb9959 SHA-256: da1512dcb2426a72c2b5aa6b665b3da187aa3b07a0e2e4f446c8783216020cbb
254 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded links, many pointing to redirectors and link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The primary lure appears to be related to vaccination costs, directing users to the 'ggtraff.ru' redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/strik?utm_term=how+much+do+vaccinations+for+india+cost In PDF document text
    • https://cdn-cms.f-static.net/uploads/4470521/normal_5faf106f0914c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460686/normal_5fa2aadee74f6.pdfIn PDF document text
    • https://dakitejowavuri.weebly.com/uploads/1/3/4/6/134669034/a82a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367289/normal_5f8751ddb12a1.pdfIn PDF document text
    • https://jinajifija.weebly.com/uploads/1/3/4/8/134889339/ea02ae358085c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368504/normal_5fb27964713df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373243/normal_5fae2ba9997a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404285/normal_5f9461bc21252.pdfIn PDF document text
    • https://suzagosezamonu.weebly.com/uploads/1/3/4/4/134446802/butabawofejoki.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0eaa5846-37c7-4194-92c7-4e6a92c0592e/125_as_a_fraction_simplified.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9afc87cf-7f82-4e6b-aadb-1485ba840f4d/sugavoxutivasij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c641342b-df4f-4d11-b1f4-b3fdebf51325/bogilusoledasufifoviwa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f85c23a7-c7a6-4519-8b3a-23644d1046c0/portland_kindergarten_writing_units.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d8ccb27-ff69-4d77-8b10-f45a9cc97d9e/tangents_and_circles_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c9a07ee-5298-4edd-b87b-5fe786e4506f/enfant_de_palestine_paroles.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_off0000cd9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD9B 5344 bytes
SHA-256: 8beeec525b13c554f166f86a788a32c070c44d5b6dd09f0181ac2a62d39ae951
font_01_sfnt_off0000dfb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB0 10748 bytes
SHA-256: 3d60e2d3518af8de58e63df716c27fc42abfc2ba86cb2587242902fddb1f1716

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