Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b310a1eb05dcdb…

MALICIOUS

PDF

277.8 KB Created: 2022-03-18 13:18:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: f5a3568b21e7fa043a80534538a95a5e SHA-1: 71a88c7643c631e3c071162b7c8ed4c5ef9cdafd SHA-256: a8b310a1eb05dcdb84e7f58943523aeaeb6c9c6adbec244e57f0270bed77006b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6618

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://norin.co.za/XSRYdR1H?utm_term=math+recognition+award+template PDF link annotation
    • http://myapartment.de/web/editor/files/kefigosebedexeno.pdfIn PDF document text
    • https://leg-vein.jp/kcfinder/upload/files/56345409696.pdfIn PDF document text
    • http://zzquansu.cn/d/files/fatapafitawori.pdfIn PDF document text
    • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622b53c4ad062---14844364717.pdfIn PDF document text
    • https://www.globalportsholding.co.uk/ckeditor/kcfinder/upload/files/80869617307.pdfIn PDF document text
    • http://journalstudiesanthropology.ro/adm/jsq/kcfinder/upload/files/50101409463.pdfIn PDF document text
    • http://cattaneoarchitetti.it/userfiles/files/30472849971.pdfIn PDF document text
    • https://betenagro.com/sites/default/files/file/welemusizofovew.pdfIn PDF document text
    • http://podiummoda.ru/userfiles/file/xesufegaji.pdfIn PDF document text
    • http://mylivediamondinventory.com/uploads/files/konopofujitipilazuz.pdfIn PDF document text
    • http://adec-interiors.net/Uploads/file/3761650365.pdfIn PDF document text
    • https://uleshuzatabc.hu/files/file/xipupesaridewuf.pdfIn PDF document text
    • http://www.shriramhariram.com/kcfinder/upload/files/pumadinusajubewose.pdfIn PDF document text
    • https://hoppe.dk/files/30615422427.pdfIn PDF document text
    • http://xmzhj.com/UserFiles/file/47556998638.pdfIn PDF document text
    • http://e-sheremet.com/img/tixagixefoxagudonime.pdfIn PDF document text
    • http://ajivikafinance.com/userfiles/file/17481372439.pdfIn PDF document text
    • https://efsanepin.com/calisma2/files/uploads/gewoputudavowafujulef.pdfIn PDF document text
    • https://bsff.com/kcfinder/upload/files/14434587131.pdfIn PDF document text
    • http://shhyi.com/hysy/WebFiles/file///2022030421504815.pdfIn PDF document text
    • http://grouptm2.com/contents/files/xowivogufexufinigidu.pdfIn PDF document text
    • http://finadev-groupe.com/userfiles/file/tozarajovavumizigab.pdfIn PDF document text
    • https://shturnev.com/files/foFKED/file/mepesi.pdfIn PDF document text
    • https://gamidbisha.com/userfiles/file/22693782722.pdfIn PDF document text
    • http://szigetkoz-vizitura.hu/admin/kcfinder/upload/files/59778953961.pdfIn PDF document text
    • https://babycoach-borger.nl/userfiles/file/79328626123.pdfIn PDF document text
    • http://cariboohose.com/userfiles/file/dofobososixifir.pdfIn PDF document text
    • http://styrexon.cz/userfiles/file/gopuxopaxifipax.pdfIn PDF document text
    • https://santehsevast.ru/userfiles/files/zuluvujiw.pdfIn PDF document text
    • https://basisnomor.com/contents/files/90213572206.pdfIn PDF document text
    • https://topas-rus.ru/media-temp/img/uploads/files/luvexafamipamasa.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_off0003e4c9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003e4c9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003e4c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E4C9 10872 bytes
SHA-256: 5a4a33bbf68b0aafee09023f34ae072d7ecd5055c307218e327030f5b9ffd853
font_01_sfnt_off0003fd94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FD94 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000414af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x414AF 18988 bytes
SHA-256: ce227655e22961076a8c65831fbda098b9b6ab8217d0142228939d2e83c3d426