Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f6b98441423e6f…

MALICIOUS

PDF

338.8 KB Created: 2022-03-13 13:10:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: b44a69614e9f567e88e502414f8d4871 SHA-1: 9f47d6d5f4fa12cf5eb50ef380ee1791b468ea34 SHA-256: a4f6b98441423e6f9cf2678bdc52bb7b14086928fcc43cd3cc077c26165e4cb9
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5053

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://colod.co.za/XSRYdR1H?utm_term=shiv+bhakti+ringtone++2019 PDF link annotation
    • http://saraco.kz/public/uploads/files/gemozobuwezasefosin.pdfIn PDF document text
    • https://webrekruit.com/php_codes/Scott/VieauAssociates/code/userfiles/file/jibifobajipo.pdfIn PDF document text
    • http://apexemergencias.com/images/files/45003468261.pdfIn PDF document text
    • http://realcomfort.ru/content/upload/file/zazotirasep.pdfIn PDF document text
    • http://softwarefactory.nl/images/file/xodexade.pdfIn PDF document text
    • http://gsest.com.sa/ckeditor/kcfinder/upload/files/kosusesogegisidodaturo.pdfIn PDF document text
    • http://optimumnieruchomosci.pl/uploads/userfiles/files/46386389234.pdfIn PDF document text
    • http://rudolphalexander.com/uploads/files/fanuwepojedo.pdfIn PDF document text
    • https://thietkewebseo.com/webroot/img/files/65540961214.pdfIn PDF document text
    • http://consorzio-csa.it/userfiles/files/64433060180.pdfIn PDF document text
    • http://gpsputhuppally.com/userfiles/file/lafurawu.pdfIn PDF document text
    • http://tayles.com/uploaded/72757083771.pdfIn PDF document text
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/162246d73a1859---32935830272.pdfIn PDF document text
    • http://wonikquartz.com/upload/editor/file/1643986949.pdfIn PDF document text
    • https://www.domaine-vrignaud.com/ckfinder/userfiles/files/6056274690.pdfIn PDF document text
    • https://aletihad-group.com/userfiles/files/vetoxikeduvidotufedojoti.pdfIn PDF document text
    • http://nt-module.ru/ckfinder/userfiles/files/pisanotewevopalaxaser.pdfIn PDF document text
    • http://www.restaurantegrellada.com/adminc/kcfinder/upload/files/48328515852.pdfIn PDF document text
    • http://studiotravenzolo.it/userfiles/files/robodabizine.pdfIn PDF document text
    • https://congchung7.com/upload/file/13954483138.pdfIn PDF document text
    • http://madmojo.com/fckupload/file/dekudofusaregolaxofa.pdfIn PDF document text
    • http://oprandi.it/userfiles/files/69755946607.pdfIn PDF document text
    • https://thebottombillion.org/business_school/uploads/file/ratarituwuvuri.pdfIn PDF document text
    • http://kydceramics.com/upload/userfiles/files/505024774.pdfIn PDF document text
    • https://sibois.eu/userfiles/file/88496766454.pdfIn PDF document text
    • http://nokianhakkablue.ru/ckfinder/userfiles/files/6618864741.pdfIn PDF document text
    • http://gsest.com.sa/ckeditor/kcfinder/upload/files/jiwesitasijibinev.pdfIn PDF document text
    • http://bephoangdung.vn/uploads/ckfinder/files/69569139982.pdfIn PDF document text
    • http://smartvoicecom.com/userfiles/lugekumi.pdfIn PDF document text
    • http://inggeo.eu/userfiles/files/jinorakuturoxubiwizanorox.pdfIn PDF document text
    • https://www.rioclaro.com.co/kcfinder/upload/files/jurotanemokanoluwam.pdfIn PDF document text
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/16209b269e7f4d---xunosazifewobexegagut.pdfIn PDF document text
    • http://www.avtoschool71.ru/kcfinder/upload/files/61721989453.pdfIn PDF document text
    • http://urparitet.ru/admin/ckfinder/userfiles/files/dagoledifuvufuwu.pdfIn PDF document text
    • http://spasinnia.org/assets/ckeditor/kcfinder/upload/files/81753252198.pdfIn PDF document text
    • http://ysmenmidwestindia.org/uploads/userfiles/file/file/69335479872.pdfIn PDF document text
    • https://wodepcb.cn/uploadfiles/files/77077353858.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0004ae02.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004ae02.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004ae02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AE02 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004c51d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C51D 20348 bytes
SHA-256: b10b3c4e14ba558420ae78ec03144312fff5055604189db208a40039bf03299f
font_02_sfnt_off0004f8e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F8E8 13352 bytes
SHA-256: 66dbe36da1178b5eff0fe7bfc5823b01a6ef73a9eeefcb0eb5c2e37ac8a3ddcf
font_03_sfnt_off00052154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52154 11008 bytes
SHA-256: b846e8ae97685e1e19511bf9484aa2218a2475b1a9549db6df026efaa0c77523