Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b96eee2625f4652…

MALICIOUS

PDF

72.2 KB Created: 2021-03-14 18:35:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 115392a2e75fed7a11ec1ba7830bbce5 SHA-1: 75754a5aec1b22514557b82f4133ec5491ac1094 SHA-256: 5b96eee2625f465277d958b4f97f867fabdf6f78fc37cba18da48da23329bc8d
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to disposable domains and link farms, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://pelibifir.ru/123?utm_term=bhanga+hrudaya+dj+raja+song PDF link annotation
    • https://cdn.sqhk.co/rinilafexowi/UplV0Ky/96854314535.pdfIn PDF document text
    • https://cdn.sqhk.co/jipuxoxukul/dLUheKs/rokafizojikukisolakurap.pdfIn PDF document text
    • http://gumidaz.medianewsonline.com/501_analogies.pdfIn PDF document text
    • http://zomuregunaradu.iblogger.org/comida_saludable_informacion_en_ingles.pdfIn PDF document text
    • http://chambreop.xyz/54213084939t7vb2.pdfIn PDF document text
    • http://armada.technology/current_instruction_register_examplenlmhz.pdfIn PDF document text
    • http://rixujewo.getenjoyment.net/viduxifanejumek.pdfIn PDF document text
    • http://blubadgehelp.net/86635674639noov6.pdfIn PDF document text
    • http://ru-1.casa/fender_mustang_amp_v2_70_wattknbu1.pdfIn PDF document text
    • https://cdn.sqhk.co/kowaziwaso/5jfSjgF/english_reading_comprehension_test_grade_12.pdfIn PDF document text
    • http://itwow.info/gumonjcgs8.pdfIn PDF document text
    • http://naturalm.space/high_school_student_resume_for_college_templateq7mhs.pdfIn PDF document text
    • http://haifaiv.ru/matlab_programming_language_purpose5url8.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://rixuroruwe.myartsonline.com/nextbook_7_not_turning_on.pdfIn PDF document text
    • http://sitotozip.rf.gd/60994846057.pdfIn PDF document text
    • https://b01ec662-dec5-4f54-b977-8708717d6054.filesusr.com/ugd/07e02c_dbe87a2235e6434e9c3c2e5dc5d38c51.pdf?index=trueIn PDF document text
    • https://68f2566a-c586-4d15-a5d1-3a72044c38f3.filesusr.com/ugd/ecec20_046b13fb1ad04c4c8d985dd834905732.pdf?index=trueIn PDF document text
    • https://6200e599-3f2f-4e3e-ab45-e6977ed7e777.filesusr.com/ugd/f8de3e_9e2a2b5c46644db39589fbf84334953b.pdf?index=trueIn PDF document text
    • http://sazibiwakefot.epizy.com/54547608711.pdfIn PDF document text
    • http://zorufuzelal.rf.gd/dogozepakap.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF47 4920 bytes
SHA-256: d0db9ca4ff379683ed5f5ee8a109be0e8c50c4a3951a94d51d12b7390a3158e0
font_01_sfnt_off0000dfef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFEF 10744 bytes
SHA-256: a5173df9fd0934384dc48af480a435a93533ea241f57a3a66c3fef7abf4965e3
font_02_sfnt_off0001042f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1042F 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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