Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd79c4fc35a921ed…

MALICIOUS

PDF

95.9 KB Created: 2020-12-23 23:26:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 480f091bd453d5fdc82a26adf90842cd SHA-1: 53e46be82453c736d2f471572c4d93a7a3bd8d26 SHA-256: cd79c4fc35a921edbacbfe2e7b6c3d9a40418052f0641e7a8bf712b3e9f5153a
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wb?keyword=centipede%20from%20bugs%20life In PDF document text
    • https://nuzuloluxeguvox.weebly.com/uploads/1/3/4/8/134874948/337620.pdfIn PDF document text
    • https://zokilare.weebly.com/uploads/1/3/4/7/134767859/zituwuxenuwimip-wuxoda.pdfIn PDF document text
    • https://cdn.sqhk.co/zevivovakok/i4jhejf/84804119353.pdfIn PDF document text
    • https://foxetevuleludo.weebly.com/uploads/1/3/4/8/134859937/9109213.pdfIn PDF document text
    • https://cdn.sqhk.co/wepuvumug/jjzgdgf/sulogekozulupovozemakemi.pdfIn PDF document text
    • https://tebojejuket.weebly.com/uploads/1/3/4/7/134764489/kuduzajife.pdfIn PDF document text
    • https://zadujemerumid.weebly.com/uploads/1/3/2/6/132695269/1227537.pdfIn PDF document text
    • https://gujodoludota.weebly.com/uploads/1/3/2/6/132681740/2783448.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/b20e8de3-26dc-4468-a63b-35a9c9be75f8/nudajunus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4ff071a-50f8-4081-b933-7e1aaa8f5080/25646566265.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b9dc418-4a91-417f-a0ec-6af50895968b/tubebanenisavigokudave.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/feelings_worksheet_1st_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08e3c7c0-f2f4-41ef-8044-53cec6e4dfe4/rick_jackson_era.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_off00013a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A77 5196 bytes
SHA-256: b3710825c0475bf30952c51bd74fd3b2d2d2ac37532ff0c46074d1253f830fe8
font_01_sfnt_off00014c0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14C0A 11560 bytes
SHA-256: ba15ffb2b5eb2dd68d28ef839578bd864943c88e04a4ab45ebc6289ac5b69ff6

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