Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e62814b8b94f392…

MALICIOUS

PDF

94.2 KB Created: 2021-02-28 12:06:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 6c583a83b08cd9ffa1f081d185965290 SHA-1: 383b9356743e6e491a50db5382ef921537a4ed98 SHA-256: 8e62814b8b94f392801be6ccad157d45313f93f8efb2b07803047b664ed45b53
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, with at least one identified as a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are consistent with techniques used to redirect users to malicious sites.

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
  • 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://resalured.ru/award?keyword=john+green+looking+for+alaska+book PDF link annotation
    • http://punavuvipufov.sportsontheweb.net/how_to_turn_off_closed_caption_on_sanyo_tv_without_remote.pdfIn PDF document text
    • https://guxolufesa.weebly.com/uploads/1/3/4/4/134468064/xuwivaxidijo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385850/normal_603af36887cd8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486742/normal_602f1cdf7da32.pdfIn PDF document text
    • http://kekijojovif.sportsontheweb.net/diliro.pdfIn PDF document text
    • http://myfirstsite.xyz/geometry_dash_world_all_levels_full_version5sm5a.pdfIn PDF document text
    • http://boomua.site/moldes_de_letras_grandes_y_bonitas_para_imprimirw4xii.pdfIn PDF document text
    • https://nojinogexosop.weebly.com/uploads/1/3/4/6/134695112/xupigedetekoje-pugepefojiburas-morujumuguvu.pdfIn PDF document text
    • https://satepiwe.weebly.com/uploads/1/3/5/3/135350267/lafafodaguguw-nanojivazi-wabomepulafoni-fovek.pdfIn PDF document text
    • https://rajevolid.weebly.com/uploads/1/3/0/8/130813967/a8969.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451575/normal_60365c89c933e.pdfIn PDF document text
    • http://devgm.design/how_to_heal_ac_joint_sprain_fasto89bd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/39470333157.pdfIn PDF document text
    • http://sarososibi.rf.gd/powerpoint_2016_online_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/wow_classic_mining_guide_human.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/masorubinajelijatezudokir.pdfIn PDF document text
    • http://merovuditipin.onlinewebshop.net/4767675416.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_off0001364d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1364D 5220 bytes
SHA-256: b3a5576cd9d7cbb6c838bee1f443c789a2e1b42393a3585be455c6ccdf8a746c
font_01_sfnt_off0001480b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1480B 10304 bytes
SHA-256: c473ef8f3d02882efdf7fba833c6d4ec04b250460576032a9aa93126e969cd34

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