Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f9170cd62213823…

MALICIOUS

PDF

92.0 KB Created: 2021-03-24 04:33:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aa0d93585bd77c43702944ba9be46b6d SHA-1: 7342f35df9abaf326e6318afd56f53b7eb7069b9 SHA-256: 8f9170cd6221382327fd2a89d4aaf4fdcab5f8292b1d88bf12b8a50f261d6220
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, many pointing to disposable domains, and is flagged by heuristics as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and URL patterns 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://lozipotod.ru/wix?keyword=electric+dreams+movie+soundtrack PDF link annotation
    • https://cdn.sqhk.co/tesikotuk/hbaKYEM/cross_road_blues_cover.pdfIn PDF document text
    • http://gipovasota.sportsontheweb.net/47644842464.pdfIn PDF document text
    • http://dokojekiferej.mygamesonline.org/dopunubejira.pdfIn PDF document text
    • https://cdn.sqhk.co/givogaduta/ghaibW3/lekimopetitabesozozevuxu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473375/normal_602c0b7d024d5.pdfIn PDF document text
    • http://nofixeb.iblogger.org/bengali_wedding_food_menu_list.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474727/normal_5fdfbd2726abc.pdfIn PDF document text
    • https://cdn.sqhk.co/bizujutenifo/icNYDig/13999011306.pdfIn PDF document text
    • https://cdn.sqhk.co/rapawaferew/ihSgjng/sim_dashboard_ios_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368763/normal_604fb55e514fd.pdfIn PDF document text
    • https://cdn.sqhk.co/vamunidibu/hhsQjec/feudalism_in_europe_vs_japan.pdfIn PDF document text
    • https://cdn.sqhk.co/mazasofuw/j5EwsM7/nupoxizis.pdfIn PDF document text
    • http://ravigimojamel.mypressonline.com/18465744938.pdfIn PDF document text
    • https://cdn.sqhk.co/guwaloxipete/gmLeghx/speed_night_3_hacked_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/tomubozes/idd75Ye/61880785642.pdfIn PDF document text
    • http://fatunatet.getenjoyment.net/adverb_or_adjective_worksheet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tuwodafuvu.epizy.com/nadexezavime.pdfIn PDF document text
    • http://fatewazut.epizy.com/christmas_music_list_youtube.pdfIn PDF document text
    • http://doriponesarom.myartsonline.com/html_css_javascript_php_mysql_book.pdfIn PDF document text
    • http://jofanemapax.epizy.com/10651846355.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 6

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_off00012a1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A1C 5164 bytes
SHA-256: c8c70bc5defcaf72956bcb52c9056cb68137e3bcc4f8a632096ea091e5819905
font_01_sfnt_off00013ba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BA4 11764 bytes
SHA-256: 67c6b92b2b8ccf06e6d57ae0390bc3a78d4da0738b311ef472ac71587c8f4ce0

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