Malicious PDF — malware analysis report

Static analysis result for SHA-256 847284cc2d44b62d…

MALICIOUS

PDF

434.3 KB Created: 2022-03-23 00:47:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 21911a53220946e5acaca15ded72b5f0 SHA-1: f12275a05ff2a5747f83f44fd887d42d8290e264 SHA-256: 847284cc2d44b62da7c8cb401113b080b0b34db7872ffee40b14f0f57776efc0
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.5000

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://cameragiaminh.com/upload/files/16637414818.pdf In PDF document text
    • https://sandpiperpressurecleaning.com/nbloom/fckuploads/file/sugozowidefevejufusefedos.pdfIn PDF document text
    • https://sabatti.hu/admin/kcfinder/upload/files/gisepudimefikofazora.pdfIn PDF document text
    • http://chip-chup.hu/upload/file/33541042901.pdfIn PDF document text
    • http://solarissoft.com/img/userfiles/files/84980964845.pdfIn PDF document text
    • https://www.veedik.net/assets/admin/kcfinder/upload/files/nurusisubidasopenefudole.pdfIn PDF document text
    • https://telorgabus.com/contents/files/motirus.pdfIn PDF document text
    • https://dongcohonda.com/userfiles/file/58345200312.pdfIn PDF document text
    • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/34164820218aaf83a3865c033e138f5e/49377183223.pdfIn PDF document text
    • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/1a3177e0e3d52bad87845974ef4898f7/71171850197.pdfIn PDF document text
    • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1623860f80c8c4---mawufimeko.pdfIn PDF document text
    • http://dancephoto.ru/userfiles/files/gizowafilepu.pdfIn PDF document text
    • https://namhunglogistic.vn/site/files/tunemewikasudepojik.pdfIn PDF document text
    • https://www.naturecare.com.au/kcfinder/upload/files/bazesebetolisitara.pdfIn PDF document text
    • http://pentas.eu/userfiles/file/liluwarumubosalagoj.pdfIn PDF document text
    • http://thiennhanduong.com/ckeditor/kcfinder/upload/files/60559995922.pdfIn PDF document text
    • http://poncocontracting.com/userfiles/file/napomuzezuva.pdfIn PDF document text
    • https://cira.thinkabit.net/downloads/files/lezogozubana.pdfIn PDF document text
    • http://kiajihlava.cz/UserFiles/File/94469677623.pdfIn PDF document text
    • http://kultpro.ru/userfiles/files/retuzawuv.pdfIn PDF document text
    • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/b0ko8bjcajkct5928567ao8vgl/2870842123.pdfIn PDF document text
    • http://nieruchomosci-swidnica.pl/userfiles/file/domuxigobepezabilever.pdfIn PDF document text
    • https://srmhomes.com/images/bulk_images/files/dagomisoremikilafebosi.pdfIn PDF document text
    • https://przewodnikjeleniagora.pl/photos/pages/files/sasowefikiv.pdfIn PDF document text
    • https://goldengatetaichiqigong.com/userfiles/file/mesafuveronusaka.pdfIn PDF document text
    • http://botan-koubou.com/js/kcfinder/upload/files/41512077222.pdfIn PDF document text
    • https://padservhosting.com/userfiles/file/73728851117.pdfIn PDF document text
    • https://nesselaarbestratingen.nl/plaatjes/file/kizujapebesijelujagelene.pdfIn PDF document text
    • http://ecogestval.com/userfiles/file/88339368900.pdfIn PDF document text
    • http://regimhotelierbucuresti.com/images/userfiles/siberotog.pdfIn PDF document text
    • https://la-klamm.org/userfiles/file/32572707344.pdfIn PDF document text
    • https://krasaelectric.com/userfiles/files/60189604522.pdfIn PDF document text
    • https://ragaz.co.za/XSRYdR1H?utm_term=pride+and+prejudice+mrs+bennet+monologuePDF link annotation
    • http://tmservice.nl/bestanden/files/97046494949.pdfIn PDF document text
    • http://www.jacenter.org/js/ckfinder/userfiles/files/75798773403.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_off00065549.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00065549.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00065549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65549 19360 bytes
SHA-256: e297c163d5cdba6a6e2e1c50858f77724648020f101811dc3526278220ec5c77
font_01_sfnt_off000687fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x687FA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00069f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69F1A 11228 bytes
SHA-256: 4deaa3fae77ea42dc401e1d8b291eea9178b2c95dca13f236086b9881b47f669