Malicious PDF — malware analysis report

Static analysis result for SHA-256 141d273d075ec9f3…

MALICIOUS

PDF

80.8 KB Created: 2021-04-29 04:53:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f905f46541f32a118dd78acf9845c447 SHA-1: 41d08df9ecc322fa62dd71bbb8381211686ac3b2 SHA-256: 141d273d075ec9f3ce136510675238918dc9651a243cd7618257d1ae82235230
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a heuristic firing indicating it's a phishing lure, specifically designed to appear as a free download. It embeds a URL that redirects to a suspicious domain, likely to host malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing or malware distribution campaign.

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://mezovuduw.ru/strik?utm_term=how+to+repair+hp+laptop+display PDF link annotation
    • https://s3.amazonaws.com/bededuxotulapil/free_offline_amplified_bible_for_ipad.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/acls_guidelines_2018.pdfIn PDF document text
    • http://reduslimitaly-official.website/muslim_travel_guide_busanycn7l.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/charha_de_rang_soniya_ve_song.pdfIn PDF document text
    • http://martans.space/rijerixegoe9f8y.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/jimmy_choo_choo_song_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/remufuzu/50877900894.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369522/normal_6042dd5e9994d.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/the_redemption_of_althalus_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/junior_android_app_developer_job_description.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380876/normal_5ff206a631aac.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/2005_buick_century_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/8760190175.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390374/normal_6060fe4927ae2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414869/normal_5fd5f886ec3b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448986/normal_5febed2373d47.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/rexogokegepedefojud.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/86578097151.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gatakokuto.rf.gd/video_calling_app_duo.pdfIn PDF document text
    • http://debagejusuwaj.epizy.com/nuxurexetifumijujekem.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 4

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_off0000fea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA5 5200 bytes
SHA-256: 5a29a12e9478aa142c240c4f1aef454b95df4defc39ef117fa9884326bdbb94c
font_01_sfnt_off0001105e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1105E 11116 bytes
SHA-256: 9e579101575f41f0d17126846893b1f698b71857bd50fcee5d9ffb3e8deba10f

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