Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fa3049a9e9fbe0…

MALICIOUS

PDF

68.0 KB Created: 2020-11-20 01:46:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-01
MD5: 84c9fc45f71e2edffb5df6fcfe91738b SHA-1: 03468d3c3fa2b3f9d32c1f5203260a871b59db61 SHA-256: a4fa3049a9e9fbe09990d73a3e5c1e9ad58780357775cc840270dd257e9e2a39
244 Risk Score

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.
  • 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://ggtraff.ru/strik?utm_term=get+the+message+math+worksheet+answer+key In PDF document text
    • https://falizuzu.weebly.com/uploads/1/3/4/5/134506804/xoxepotalupelezud.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/xelikanotuzifaja.pdfIn PDF document text
    • https://koxoganonigowup.weebly.com/uploads/1/3/1/4/131408343/deduzex.pdfIn PDF document text
    • https://dobopekajami.weebly.com/uploads/1/3/4/3/134314215/8999635.pdfIn PDF document text
    • https://zozunane.weebly.com/uploads/1/3/4/3/134316446/ganorawunosota_jezuroxupa_tevosizaf_fidenenovir.pdfIn PDF document text
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/fb697f9d071.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000cda8.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000cda8.bin)
    • https://s3.amazonaws.com/xojafemori/the_crucible_act_3_study_guide_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2050abe9-938c-4fb9-8a9f-c0b2ad62e23b/69500663632.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20219868-f132-4e5d-b062-5ded89800bc9/terugiburebimezatitu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf48f248-51ba-4a19-9e2d-85cd8c33bd35/zimijotej.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/giraffe_town_final_boss_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ab608dc-3e84-4085-a579-57d969a5cd81/85654388045.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a027f881-e9e4-4be8-85d8-9b63a19a9d16/samufubavugexipipi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3da845b4-1623-4c05-a4c3-e6611be1536d/graduation_requirements_harvard.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06f4eebc-663c-4ef0-b430-57a2877fc3bb/3984329630.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 extracted file (font_00_sfnt_off0000cda8.bin)

Related samples 8

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_off0000cda8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDA8 5356 bytes
SHA-256: f582fd3d48a799fa97de6076a6dd0d313bc4e0ee29b3f3f77e108cd56e9c9992
font_01_sfnt_off0000dfca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCA 10420 bytes
SHA-256: 5cb6240b12ce8451c206542356f321c663c27e34865276ae0a44a66ce82481c9

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