Malicious PDF — malware analysis report

Static analysis result for SHA-256 445942da31774651…

MALICIOUS

PDF

76.4 KB Created: 2020-11-26 00:18:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: cb0e9c9636c0aac3e8167a0478e72276 SHA-1: 748683b6c601fe901c9f8c882b897e8c11d98f58 SHA-256: 445942da31774651e1ef6bcdead1c743ca802af523776aae6747a5979c87dd12
254 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as search results, leading to a redirector URL. This is a common phishing tactic to trick users into visiting malicious sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://traffine.ru/123?utm_term=where+does+davinci+resolve+save+project+files In PDF document text
    • https://cdn-cms.f-static.net/uploads/4450733/normal_5fafa99119090.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368978/normal_5fb2608d195e0.pdfIn PDF document text
    • https://xuzofetix.weebly.com/uploads/1/3/4/3/134371052/lumazasubibedifawomo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449399/normal_5faa1a86182e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489975/normal_5fbbb41ae3842.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487905/normal_5fada3dc30d14.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rebomedug/wumura.pdfIn PDF document text
    • https://s3.amazonaws.com/rexogeguxosix/39093954031.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/dometic_duo_therm_thermostat_wiring.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64ee90e1-bcc7-40e5-9260-4b7d8f16c211/73997906689.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/corporation_information_act_ontario_form_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/151f8bde-caad-4462-ba1a-4b21bb00374c/25477426953.pdfIn PDF document text
    • https://s3.amazonaws.com/fevobelijogal/divinity_original_sin_2_enhanced_edition_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lezopobigeza/editable_calendar_april_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/letter_formation_alphabet_handwriting_practice_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/bodmas_hard_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/7546183776.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e9b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B7 5392 bytes
SHA-256: 35587f23e21a65e1efba66db59c915e3cdddd580c9135eeae765ab55d00e2014
font_01_sfnt_off0000fc21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC21 11704 bytes
SHA-256: 10b50e459390302c68d84a25663f09ba53a1f9307edc41097961989c4f33fcf0

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