Malicious PDF — malware analysis report

Static analysis result for SHA-256 941788e5fe612fbd…

MALICIOUS

PDF

74.0 KB Created: 2020-12-17 09:34:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: ac9801ba3946330f89ef1d1e88c9c93c SHA-1: b77a090f4da4d4673e8e0403f75b3562ddbd78e8 SHA-256: 941788e5fe612fbd125cd8ca01a6550ad2dbfb368171e472d119c91dca12e185
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://gettraff.ru/123?utm_term=ge+universal+remote+rc24912+d+code+list In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369501/normal_5fa527d641723.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367277/normal_5fd81cb3be1db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369777/normal_5fd5f92edfaf0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403537/normal_5f929d357acd6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450042/normal_5fd2c51bc7d75.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/5b3196ad-8352-4ed2-ab28-62174362e2f5/gufatez.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d7c89955c744b53b4369/t/5fc13c4a3c02f22b9d3a1fa2/1606499402469/bosexititigefodupeva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b351962-cad1-4931-b2e8-b47236f8439d/baby_einstein_jumper_assembly_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74fb53c7-f1c8-414c-9568-965f2234f86b/22878344581.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b563e6c8-f07c-460e-aa19-38659f85837b/drayton_heights_public_school_staff.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8201dcbc-dab2-43d3-bbdf-1db7313adbdf/chapter_3_molecules_of_life_worksheet_answers.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_off0000e3ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3ED 5604 bytes
SHA-256: a330890f1242c018cd86a4dcfc0dbb7470280884e8f3125d8677ce2b29b1dec4
font_01_sfnt_off0000f6f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6F8 10536 bytes
SHA-256: 228bdf38579a5df15f6dbca9d2dc71ecf8383a990cafc940290e7b3c13ce872f