Malicious PDF — malware analysis report

Static analysis result for SHA-256 44522544036436e5…

MALICIOUS

PDF

74.6 KB Created: 2020-12-15 22:26:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-07
MD5: 4b195593c8274537ae953e387d77f2bd SHA-1: 4a777f084109e04f79944f7cbc0cbcbf7d65749e SHA-256: 44522544036436e53f4dec3867056d12ad23fd81ce8433f783aedb7df3e728df
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://traffmen.ru/wb?keyword=unlock%20bootloader%20code%20generator%20tool In PDF document text
    • https://static.s123-cdn-static.com/uploads/4382779/normal_5fc40c874da2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415768/normal_5f9a4b23080ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422382/normal_5fb9277514bd9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371003/normal_5fbd8dab947e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458394/normal_5faf5db11f259.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377388/normal_5fc04ec0befa9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416143/normal_5faf0822847b5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/8e1b3993-4682-4c1d-ba89-5f7d944d7831/nuzamusajinibovowikadu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4aea3114-2df5-4efb-9e80-0cee95ae4730/ina_garten_chicken_salad_sandwich.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf5e73570fb44d1c89648/1606284775542/plenti.com_card_activation.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/freelancer_mod_manager_1._4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d79ff16-554e-4275-9d93-dc37f6f63882/singer_manual_4452.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/617ce13b-d120-4769-be08-d4625869a62b/susifidufaxesabokupat.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc79084633934501854b92a/t/5fd682b889566e781f542968/1607893689553/monthly_calendar_2019_template_uk.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA77 4864 bytes
SHA-256: a6f6448ff8de2cea69cc9b982f00b5dc52d85b95dbedbfcc6609a06b78cb3ffb
font_01_sfnt_off0000eb02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB02 10500 bytes
SHA-256: 23a4ed69812faeb555bcc06dff5e3e478c27b4ffc297e4b7fe5d4e8129706938
font_02_sfnt_off00010ef5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EF5 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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