Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f43217ef019248…

MALICIOUS

PDF

479.7 KB Created: 2022-02-04 02:58:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: b019793a3c088c0ac6f3b83ab12bd5ae SHA-1: 9d1303b7742d9bd742cff372c2ae40b568209448 SHA-256: a4f43217ef019248da80fdb902a8002c62e187ad1ca7e75a26e910c15d436721
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5543

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 https://mifuj.co.za/XSRYdR1H?utm_term=an+naba+muzammil+hasballah PDF link annotation
    • http://nessium.net/userfiles/file/widolidejesezijaninab.pdfIn PDF document text
    • http://owv-sad.de/userfiles/files/48012289223.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/161c6a4875b319---93676064622.pdfIn PDF document text
    • http://mrybalko.ru/files/xusotanevowila.pdfIn PDF document text
    • http://elskup.pl/images/assets/file/5396276655.pdfIn PDF document text
    • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613549a91c8c9---57064316143.pdfIn PDF document text
    • https://abofahed.com/userfiles/file/ketikogudit.pdfIn PDF document text
    • http://kyokushin96.ru/admin/ckfinder/userfiles/files/80437065835.pdfIn PDF document text
    • http://artgrafika.cz/userfiles/file/22058985700.pdfIn PDF document text
    • http://jyjwqj.com/uploadfile/file///2022012907231522.pdfIn PDF document text
    • https://murten-hotel.ch/userfiles/files/7522422358.pdfIn PDF document text
    • http://divapharma.com/uploaded/file/43296550281.pdfIn PDF document text
    • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/8n9glma5c76v58q6liocllucu7/dimegapezuse.pdfIn PDF document text
    • http://nwatchonline.net/userfiles/file/57283981904.pdfIn PDF document text
    • http://www.ags-sib.ru/ckfinder/userfiles/files/55791402527.pdfIn PDF document text
    • http://choinka4x4.org/cms/files/file/8944440082.pdfIn PDF document text
    • https://doanandieuduong295doson.vn/namthuan/images/news/files/sebapizuwikirejatezarox.pdfIn PDF document text
    • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/9betsfhbt6s4v7gss1ra7qk7a4/xixipogerotaluxasened.pdfIn PDF document text
    • http://chunzucn.yun2u.cn/upload/files/15735417434.pdfIn PDF document text
    • http://mebelhotel.ru/userfiles/files/vilapuvaretunuwilujoduda.pdfIn PDF document text
    • https://www.ogsb.org/asset/ckeditor/kcfinder/upload/files/65095595944.pdfIn PDF document text
    • http://novussiteyonetimi.com/uploads/file/koxosogulafoxuz.pdfIn PDF document text
    • http://sokol.knezmost.cz/soubory/79836623511.pdfIn PDF document text
    • https://cottonweb.net/userfiles/file/87347883226.pdfIn PDF document text
    • https://agroadvanced.com/app/webroot/newsletters/editor/files/66486449059.pdfIn PDF document text
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/6af6821c071c6306b00bfbb7ffe60765/sudizuferuzazerileja.pdfIn PDF document text
    • http://frezerovka.by/images/fxeditor/file/fogezanuke.pdfIn PDF document text
    • https://civilkontroll.hu/uploads/file/fipogasofazafujorusuled.pdfIn PDF document text
    • http://www.bauernmusikkapelle-stjohann.at/CMS/ckeditor/kcfinder/upload/files/48996740925.pdfIn PDF document text
    • https://verredistri.fr/xmedia/file/gorexuzavosubojekis.pdfIn PDF document text
    • https://www.swiftcargo.com/adminlogin/kcfinder/upload/files/45426134027.pdfIn PDF document text
    • http://eskuvoiiranytu.hu/blog/file/39682036554.pdfIn PDF document text
    • https://feketemeheszet.hu/UserFiles/File/kedozolekupidumuxexifab.pdfIn PDF document text
    • http://www.winnicajanowice.pl/kcfinder/upload/files/56839195095.pdfIn PDF document text
    • http://96stone.ru/userfiles/file/62220036662.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_off00071839.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00071839.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00071839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71839 10204 bytes
SHA-256: c8a38b2bc39c41ae32b13681455dc51a08438d13dbef79f1b6f259a8f49d7682
font_01_sfnt_off00072ed8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72ED8 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000745f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x745F3 16372 bytes
SHA-256: 2df2802e9a28528fb65b811ab86a965df81193edd205ec60a103c5373573b662