Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b0168f825b7f0d…

MALICIOUS

PDF

237.9 KB Created: 2022-03-13 20:34:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 57f35f46ea9b22f8244390cda81b47a2 SHA-1: 767ada0dd748a373066ebf35c57878df0e4f55df SHA-256: a8b0168f825b7f0dde663119e4e02cc7327e8cfbd62181bfd8176a20d47301db
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7583

Heuristics 6

  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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 http://allivecoat.com/userData/board/file/digujogoxitiw.pdf In PDF document text
    • http://aarogyamedico.com/userfiles/file/59190500508.pdfIn PDF document text
    • http://net-work.cz/data/file/sasixefaxizazovafola.pdfIn PDF document text
    • http://veszpremlizards.hu/_user/file/42321333752.pdfIn PDF document text
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/4be510c125ca83cafab09fd4a1a71876/86308178109.pdfIn PDF document text
    • http://www.dieseproductions.com/upload/customNews/files/vifibiv.pdfIn PDF document text
    • http://conganbacgiang.vn/app/webroot/uploads/files/jeperexizo.pdfIn PDF document text
    • http://secureyun.cn/uploadfile/file///2022022610240970.pdfIn PDF document text
    • https://wingtsunkungfu.ro/imagini_ws/88293977495.pdfIn PDF document text
    • https://novitas.ro/files/jutojopim.pdfIn PDF document text
    • http://damnoen.com/ckfinder/pho/files/19564690107.pdfIn PDF document text
    • https://www.thic.net/plugin/ce1/ckfinder/userfiles/files/sakelalesigaditod.pdfIn PDF document text
    • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16202f74c02992---28625023811.pdfIn PDF document text
    • https://iagclaims.endataclaims.com/ModCoreFilesUploaded/file/pawaxivodozodas.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/1257c88ec1e9ff90580d30a5966405f0/fojavinokos.pdfIn PDF document text
    • http://stickers-moins-cher.com/userfiles/stickers-moins-cher.com/file/nisetez.pdfIn PDF document text
    • http://doubler-son-capital.com/photos/files/37849998937.pdfIn PDF document text
    • http://on-video.com/movies/movie_data/file/rizato.pdfIn PDF document text
    • https://dalyanestate.com/userfiles/file/77755440582.pdfIn PDF document text
    • http://ecohost.ru/pics/images/file/7946900549.pdfIn PDF document text
    • http://datacomsystems.cz/userfiles/file/fanevevit.pdfIn PDF document text
    • http://tucsokszekszard.hu/images/news/file/13815461328.pdfIn PDF document text
    • http://demignyfasol.com/kcfinder/upload/files/bipurodol.pdfIn PDF document text
    • http://bertoniamministrazione.it/bertoni/public/file/13747743476.pdfIn PDF document text
    • http://rabwork.com/media/file/71412375364.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=shoulder+dislocation+radiology+reportPDF link annotation
    • http://patrick-jardinage.fr/ckfinder/userfiles/files/29905807641.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_off00034608.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00034608.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00034608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34608 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00035d23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35D23 19000 bytes
SHA-256: dff3b09c61e86c106634dc22df8d6bc80db84449deb03008ec63d14d69bc5ecc
font_02_sfnt_off00038ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38EC2 11080 bytes
SHA-256: 9281f1a31ceb6e6f9979e389e38e9a03558da8cea873c3be782901aa49a6b6f8