Malicious PDF — malware analysis report

Static analysis result for SHA-256 191e0f8eadd3c331…

MALICIOUS

PDF

286.2 KB Created: 2022-01-05 09:49:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 0f76c809f52c97d5c3d5196cad5e273e SHA-1: 1101a5e25ddeceabd62b32cca547dd9039d73f46 SHA-256: 191e0f8eadd3c331c9a5d4331cad95c62763bad8bca769bedc9552f1e3958a83
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7401

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://cecprint.com/images/file/88313344396.pdf In PDF document text
    • http://tjsijiqing.com/ckfinder/userfiles/files/2021/1027/9e610e0abdac889b3ba98eea33c0200b.pdfIn PDF document text
    • http://finance-bulldog.cz/UserFiles/File/mofomifanewusajabede.pdfIn PDF document text
    • https://eventaipei.com/upload/files/nepajelifiruzabisogisu.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/161d48e2b1b64a---padokinifowavakizudak.pdfIn PDF document text
    • http://footstepfloor.com/upfiles/files/17298045944.pdfIn PDF document text
    • http://sv-orhidea.ru/upload/files/33265736258.pdfIn PDF document text
    • http://talentfuturesservices.com/sharpinstitute/images/files/29248796966.pdfIn PDF document text
    • http://svadbavmoskve.com/content/xuploadimages/file/7706770207.pdfIn PDF document text
    • https://kuni.ro/app/webroot/files/userfiles/files/rojowo.pdfIn PDF document text
    • https://nbtele.com/en/cache/fck_files/file/rapukasa.pdfIn PDF document text
    • https://greenlakepaint.com/ckfinder/userfiles/files/39130715876.pdfIn PDF document text
    • http://slotkuda.com/contents/files/49748172615.pdfIn PDF document text
    • http://zge-led.com/luodan/images/userfiles/file/74746158810.pdfIn PDF document text
    • https://renfrewareahealthvillage.ca/ckfinder/userfiles/files/62274869387.pdfIn PDF document text
    • http://integrotech.eu/zdjecia/file/87411030207.pdfIn PDF document text
    • http://sweet-sugar.de/images/uploadedimages/file/ximozufepezodazatanunot.pdfIn PDF document text
    • http://www.igmis.edu.bd/public/files/assets/ckeditor/kcfinder/upload/files/getot.pdfIn PDF document text
    • http://gsnursing.in/ckeditor/ckfinder/userfiles/files/wolodosusegeruzapeboxubu.pdfIn PDF document text
    • https://zippy-inc.com/app/webroot/userfiles/files/96471446674.pdfIn PDF document text
    • https://mtmnetwork.net/uploadEditor/files/xoxazeduludofuxosuwir.pdfIn PDF document text
    • https://www.tiad-mtm.com/assets/admin/js/plugins/kcfinder/upload/files/rorijavitavafo.pdfIn PDF document text
    • https://bd-sokolovska.eu/userfiles/file/jalefukabafaf.pdfIn PDF document text
    • http://indianspringhomes.com/userfiles/files/fuxonuvuwaterizenuzulogov.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c80cebeb0cb---zifinigumimutekato.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/oscUj7J0Gjw/uplcv?utm_term=android+10+oneplus+5t+redditPDF link annotation
    • 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003f9a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F9A0 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00041044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41044 10612 bytes
SHA-256: 1c36e0c75e1c0741c25a1f7f9aadd558e8458ce74b3d4594ae33037770d8ab34
font_02_sfnt_off000428aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x428AA 25596 bytes
SHA-256: 50bab5f80340cd3ce9f9b5466398398ed959994723a2e6b8f7ee7bcb78b7888e