Malicious PDF — malware analysis report

Static analysis result for SHA-256 29cd660bbe651ba1…

MALICIOUS

PDF

423.7 KB Created: 2022-01-29 06:58:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-18
MD5: d708517f7e7c2218a7220f074791755c SHA-1: 09ca0f4d12be9df28f62580e3a612c0ca6b5c0c3 SHA-256: 29cd660bbe651ba1d567bfca50325b49f3e54422b3a4da30330c1db8a066cc39
196 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4959

Heuristics 8

  • 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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://yubit.co.za/XSRYdR1H?utm_term=amsterdam+tour+guide PDF link annotation
    • http://sacoorhealth.pt/site/upload/file/57527684074.pdfIn PDF document text
    • http://sambometal.com/dataroom/file/valitovemotogabagevol.pdfIn PDF document text
    • https://matharu.ae/userfiles/file/34362014931.pdfIn PDF document text
    • https://enilubricant.hoakhanh.vn/uploads/image/files/95028635638.pdfIn PDF document text
    • https://aptitudeclass.com/ckfinder/userfiles/files/66871957189.pdfIn PDF document text
    • https://mangonebike.com/uploads/file/38284659.pdfIn PDF document text
    • https://estoniapools.com/contents/files/zimobepize.pdfIn PDF document text
    • https://ratsimae.ee/media/contents/file/kegagubopizivelutedoxobe.pdfIn PDF document text
    • https://kettosallampolgarsag.net/imagini_ws/314118283.pdfIn PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1617c8ef0544b0---bokotifod.pdfIn PDF document text
    • http://ovodaprojekt.lenti.hu/feltoltes/files/mekuxobunapisikeni.pdfIn PDF document text
    • http://dallard.fr/ressource/site-image/files/36853712746.pdfIn PDF document text
    • https://zenmobile.in/jaipriyart/uploads/files/71986985214.pdfIn PDF document text
    • https://przyklejki.pl/userfiles/58367661034.pdfIn PDF document text
    • http://xn----8sbfeahwarn6ac1adp3fb2p.xn--p1ai/userfiles/file/vukomizexodalimu.pdfIn PDF document text
    • http://ip-kamery.cz/files/file/pitevusofiwuvoxezizujo.pdfIn PDF document text
    • http://tlca.com/Content/uploads/files/17764906498.pdfIn PDF document text
    • http://piwcnorthhouston.org/admin/ckeditor/kcfinder/upload/files/situmefavukoduwinopulet.pdfIn PDF document text
    • http://berbun.com/user_img/file/37272941661.pdfIn PDF document text
    • http://forensique.com/app/webroot/kcfinder/upload/files/70465002643.pdfIn PDF document text
    • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1617c96f0a114b---95788986499.pdfIn PDF document text
    • http://star-transform-moscow.ru/uimg/files/fotofi.pdfIn PDF document text
    • https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/4aa8314b63a13e7a32800db9c6e79f9e/fewuwisegikefud.pdfIn PDF document text
    • http://185.33.116.145/~acus01/upload/files/bugifuxizevepujari.pdfPDF link annotation
    • http://retrolondontees.com/userfiles/file/wupoxuloxij.pdfIn PDF document text
    • http://krukaiart.com/userfiles/files/59107816734.pdfIn PDF document text
    • http://vkp.ru/upload/global/file/bugagigajubaroxuwis.pdfIn PDF document text
    • http://street.bpv.su/content/files/files/xuvisopifej.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_off0006368d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006368d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006368d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6368D 10524 bytes
SHA-256: 2fa1162f1cf2dd996fede9c03709ace0e66da3b6fe7958ad2bc7880bc684ba19
font_01_sfnt_off00064e55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E55 16476 bytes
SHA-256: 74f4efeba477ffb5325135acb0a2d0904e96ebf7c8bd5acd9db2e17052c3d861
font_02_sfnt_off000678f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x678F9 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336