Malicious PDF — malware analysis report

Static analysis result for SHA-256 4457848a33c9e433…

MALICIOUS

PDF

76.3 KB Created: 2021-03-12 08:50:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 6fe3e75793fb6fa82c8b94fd692f067c SHA-1: e0f7647057906893fa50121865f380c9d9975264 SHA-256: 4457848a33c9e433d75e0447e35d694dd23b8a002fe7c3c31e8d368ba77f3b54
126 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically pointing to a domain associated with a link farm and disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://lozipotod.ru/wix?keyword=tomtom+go+5+user+manual PDF link annotation
    • http://pinegobojefo.getenjoyment.net/ketugewubuvesonuk.pdfIn PDF document text
    • https://cdn.sqhk.co/vawadawuleja/1Uagcih/duck_life_treasure_hunt_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/gadewekunel/jfWihOy/69348398546.pdfIn PDF document text
    • http://gitamoravazini.22web.org/basic_geometry_worksheets_grade_7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420019/normal_6011894eccbbd.pdfIn PDF document text
    • http://lirinevewafa.mypressonline.com/54994235264.pdfIn PDF document text
    • https://cdn.sqhk.co/nivunufozub/hcnu2v5/download_super_jabber_jump_for_pc.pdfIn PDF document text
    • http://norasuzajo.mywebcommunity.org/augusto_monterroso_mr_taylor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484103/normal_6046c2b15b077.pdfIn PDF document text
    • https://cdn.sqhk.co/xovinexesun/Kghieic/streamer_life_simulator.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
    • http://poxemibusap.epizy.com/free_payment_receipt_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd423b94-ff08-47ef-a6a4-f6c974f3997b/serarenatesojelexonigo.pdfIn PDF document text
    • http://mibavened.rf.gd/rireligekaloravi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f5ff761-c74a-4391-812e-10160fb86247/pevusovusesewigukimipewo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90c018df-217a-44b6-b1ea-23ef6a41b1c3/how_to_install_git_on_windows_10_command_line.pdfIn PDF document text
    • http://zedorufusoli.rf.gd/46217000282.pdfIn PDF document text
    • http://tobewopuma.rf.gd/86657662446.pdfIn PDF document text
    • http://bonagofej.epizy.com/aha_resuscitation_guidelines_2018.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_off0000e58e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE58E 4912 bytes
SHA-256: b1338422bb84cb3c739d3b20e97a8ff6ffbf1651c1fc09a1c2c9cd64c363c4ec
font_01_sfnt_off0000f631.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF631 9428 bytes
SHA-256: 57c97de6fc2462aa21c7ca2e194f355547b97ad91336187e3c1ee0493c8da581
font_02_sfnt_off00011656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11656 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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