Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c8bd8c33abedddc…

MALICIOUS

PDF

222.2 KB Created: 2022-03-14 03:30:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 0d21cf94263583659a4c32ffb7ddb643 SHA-1: 6b574fe9e9407f337cde2e8bc54515e77c95517c SHA-256: 2c8bd8c33abedddc2002e1346c82a5cf13f652dee6c1f56dae1cfc24e68a4d07
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7436

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.
  • 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://colod.co.za/XSRYdR1H?utm_term=pectus+deformity+of+the+chest PDF link annotation
    • https://sunridgecorp.com/uploads/files/202203051612411730.pdfIn PDF document text
    • https://salwangurugram.com/files/96203282029.pdfIn PDF document text
    • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/dc096aa055aedc2e6e61a752b6e511ce/43575356448.pdfIn PDF document text
    • http://www.immat.org.tr/kcfinder/upload/files/50676412546.pdfIn PDF document text
    • https://b2b-intelligence.it/uploads/file/83806098169.pdfIn PDF document text
    • http://zenobiacultura.it/userfiles/file///sorogalarupanebidor.pdfIn PDF document text
    • http://mtqindia.com/app/webroot/uploads/files/71594396256.pdfIn PDF document text
    • http://trinitysportsandleisure.ie/userfiles/file/89291503962.pdfIn PDF document text
    • https://groupunsur3.com/contents/files/14451837340.pdfIn PDF document text
    • http://qataminational.com/uploaded_files/userfiles/files/damivosekabatul.pdfIn PDF document text
    • https://quangcaowebsitecomvn.xemlaco.com/uploads/files/29556146751.pdfIn PDF document text
    • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16208d8a999e41---22871295076.pdfIn PDF document text
    • http://cosmosartinteriors.com/kcfinder/upload/files/benupibam.pdfIn PDF document text
    • http://105chers.netsociality.com/upload/files/filenimavizufibusoxo.pdfIn PDF document text
    • http://siamsankyo.com/Uploads/file/54432247364.pdfIn PDF document text
    • http://lexnovum.pl/js/kcfinder/upload/files/90161156422.pdfIn PDF document text
    • https://uleiuri.ro/userfiles/file/rowakifosin.pdfIn PDF document text
    • https://www.fsps.co.th/kcfinder/upload/files/76491180678.pdfIn PDF document text
    • http://tks-forever.com/upload/2022/02/09/file/pivekusiravijaral.pdfIn PDF document text
    • http://islaminkiel.de/webmisr/uploadwebmisr/file/zakogek.pdfIn PDF document text
    • https://aymexco.ro/ckfinder/userfiles/files/70043341106.pdfIn PDF document text
    • http://undergroundspitters.nl/kcfinder/upload/files/jifefotomusumujetunarax.pdfIn PDF document text
    • http://terminsk.by/pics/files/milixapo.pdfIn PDF document text
    • http://aloisiquadri.it/userfiles/files/16430358421.pdfIn PDF document text
    • http://ibb-online.ru/f/file/pelososozonekubu.pdfIn PDF document text
    • https://topclassgreenery.nl/images/file/tubekonubijevavufo.pdfIn PDF document text
    • http://lecostationery.com/files/file/lelajufid.pdfIn PDF document text
    • https://giraffeng.net/infodaily/gen-ckfinder/userfiles/files/61093137022.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 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_off00030c03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C03 10644 bytes
SHA-256: 03a1a3f1f7c90cbcb55519ecc2a851eb94f09d0078a4b6ac8d5a2f4a0a02c6ae
font_01_sfnt_off0003247a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3247A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00033b95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33B95 17556 bytes
SHA-256: adf1459550a7a96d2992a82628099c76fd024ed7a2cc8ac429b2f5fb930c81a4