Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f3b953367cdaa73…

MALICIOUS

PDF

208.5 KB Created: 2022-03-06 23:57:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 1d2f4951ab074e55fac3f977fc7daca7 SHA-1: bf19b4e6806712a260b1bf773593adc695f6ca64 SHA-256: 5f3b953367cdaa73c3fe56c3ef9e18d00454dcc2abf925b0dcb40208f996ad70
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7552

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://yoyep.co.za/XSRYdR1H?utm_term=bcbstx+claim+review+form+fax+number PDF link annotation
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621353dc3e0d7---zudekifisaretozi.pdfIn PDF document text
    • http://www.andreapondika.cz/file/97069563106.pdfIn PDF document text
    • http://foto-preiss.at/upload_files/files/64272908260.pdfIn PDF document text
    • http://belv.ru/userfiles/file/zirulesus.pdfIn PDF document text
    • http://thayloilocnuoctaihanoi.net/upload/files/48948645497.pdfIn PDF document text
    • http://www.zdravotechnika.com/ckfinder/userfiles/files/zavuxuv.pdfIn PDF document text
    • https://www.pollackmihalyiskola.hu/ckfinder/userfiles/files/72385817556.pdfIn PDF document text
    • https://inprovitcentroamerica.com/ckfinder/userfiles/files/73932296530.pdfIn PDF document text
    • http://ototavandosemesi.com/resimler/file/bijokozarotovufuruwas.pdfIn PDF document text
    • http://tourister.kr/userfiles/file/dujurujemogisolobebokazo.pdfIn PDF document text
    • https://www.cuadernosmanchegos.com/panel/cuadrodemandos/assets/ckeditor/kcfinder/upload/files/lososamasifagirepoten.pdfIn PDF document text
    • http://vandofigueiredo.com/userfiles/file///59478508164.pdfIn PDF document text
    • http://stroyvodservice.ru/upload/File/67474462006.pdfIn PDF document text
    • https://diamond-marketing.cz/soubory/85843402946.pdfIn PDF document text
    • http://rujiahk.com/uploadfiles/file/dekusasilufewuroma.pdfIn PDF document text
    • http://atomleasing.ru/media/File/63715876338.pdfIn PDF document text
    • https://www.vyrobadps.eu/admin/kcfinder/upload/files/97385679885.pdfIn PDF document text
    • http://aaz.sk/editor_uploads/files/komisogajonaj.pdfIn PDF document text
    • http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/69939457862.pdfIn PDF document text
    • https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/162191a6942b1f---35809017143.pdfIn PDF document text
    • http://posicert.com/upload_fck/file/2022-2-18/20220218215620346519.pdfIn PDF document text
    • https://www.fsps.co.th/kcfinder/upload/files/45662164249.pdfIn PDF document text
    • https://kalimati.in/userfiles/file/88072826241.pdfIn PDF document text
    • https://ripedzn.com/app/webroot/files/fckeditor/file/balubizuk.pdfIn PDF document text
    • http://melody-house.ru/kcfinder/upload/files/69415919232.pdfIn PDF document text
    • https://urbanlivin.lu/userfiles/files/82901628684.pdfIn PDF document text
    • https://cfi-registration.org/buzzboxgift/img/userfiles/files/79689595632.pdfIn PDF document text
    • http://nomayaku.com/userfiles/file/80788269316.pdfIn PDF document text
    • http://xnucleus.com/members/member_images/files/jefixelodonidoxodaxuse.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_off0002d452.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002d452.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002d452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D452 11044 bytes
SHA-256: e124be5d7bd6961368e11f7b31d3d8463bc16f2ff160ac85b2c0bf3d337e9abd
font_01_sfnt_off0002ee29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE29 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00030544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30544 17608 bytes
SHA-256: 9037860c7098a41ef9a4448a7b013bb93021c1955f0e8ae8fc0a0ecf0c2ab5be