Malicious PDF — malware analysis report

Static analysis result for SHA-256 d47d263fbbd49ba3…

MALICIOUS

PDF

68.3 KB Created: 2021-02-15 23:08:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: c528e51a35e732c497f9611fe35237a6 SHA-1: 41476e5ec58421659dd1f18c09bcd746bb3ef1d9 SHA-256: d47d263fbbd49ba32843948baddbb83a50f35cf45ef612fcb3e329cbf17b8ca1
166 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains embedded URLs and heuristic firings indicating it is a link farm and a lure for password reset information. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The document body, though heavily obfuscated, contains metadata related to 'Nextbook tablet reset password' and the authoring application, reinforcing the lure theme.

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://maypoin.ru/wb?keyword=nextbook%20tablet%20reset%20password PDF link annotation
    • https://cdn.sqhk.co/rirerujel/i7jeWha/cake_pop_pan_recipe_with_pudding.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454671/normal_6001c0be4da58.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/gLhesgO/zosepugif.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/l3Njb9x/30422308503.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458827/normal_5fe8f134806c8.pdfIn PDF document text
    • https://cdn.sqhk.co/pakelabete/cRhggz7/cookies_must_die_controls.pdfIn PDF document text
    • http://nilofebep.iblogger.org/15762031034.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493920/normal_5fd79f365c4a1.pdfIn PDF document text
    • https://cdn.sqhk.co/reretukida/WPricW9/game_creator_software_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486963/normal_600dd34cbc0bb.pdfIn PDF document text
    • https://cdn.sqhk.co/mapiwoda/NjiXiex/myrkur_merch_europe.pdfIn PDF document text
    • https://cdn.sqhk.co/temejikowewa/jk6jghi/daily_to_do_list_synonym.pdfIn PDF document text
    • https://cdn.sqhk.co/vaxarogajib/Zjdhgig/tupejuwidapesalazitar.pdfIn PDF document text
    • https://cdn.sqhk.co/xawodoze/3KhhIhh/87611565951.pdfIn PDF document text
    • http://fotodosajube.22web.org/babizefigeriza.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gazusoketa.epizy.com/87151941320.pdfIn PDF document text
    • http://logoroxesum.epizy.com/yowhatsapp_7._10_2019.pdfIn PDF document text
    • http://dumudolaba.epizy.com/sulig.pdfIn PDF document text
    • http://dovuxomumebajip.epizy.com/6946327040.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_off0000cd24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD24 5288 bytes
SHA-256: b904a952d80467b66908304d49de56739fb16f1ac427507ee2c78ebd4c1b71fc
font_01_sfnt_off0000df42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF42 10308 bytes
SHA-256: 14496b8be8352370aa4f6e5739f3fbbc5ee65847dc1faf78121913d667eb3232

Open this report in the interactive analyzer, or submit your own file for analysis.