Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7da2c657ef6595c…

MALICIOUS

PDF

450.3 KB Created: 2022-05-08 01:11:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-28
MD5: 059857bc8bba53b14dac9d3c3874a4b5 SHA-1: c5073df2107949400fe1adc1f4c48e58d39c7ba7 SHA-256: c7da2c657ef6595c5d7aad880396698953b587c3951267be6f8a37505cde4a89
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4712

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://cafij.co.za/XSRYdR1H?utm_term=cutting+machine+crafts+pdf+free+printable+patterns+free PDF link annotation
    • https://fanizoliboligom.weebly.com/uploads/1/3/1/0/131070566/2972404.pdfIn PDF document text
    • https://cauthinh.com/luutru/files/66419223055.pdfIn PDF document text
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16232b12a04696---34738172091.pdfIn PDF document text
    • https://jin-hung.com/userfiles/file/nusijap.pdfIn PDF document text
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1620e2f8170213---45603286340.pdfIn PDF document text
    • http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202204020724199844.pdfIn PDF document text
    • https://piok.hu/images/files/danugavejubadekodivu.pdfIn PDF document text
    • http://bctlorraine.org/userfiles/file/bodakom.pdfIn PDF document text
    • https://mojogobiwed.weebly.com/uploads/1/3/4/7/134747953/68ad47867f.pdfIn PDF document text
    • http://dvere.eu/assets/ckeditor/kcfinder/upload/files/tugelixovoxekilof.pdfIn PDF document text
    • https://sofivowipaduru.weebly.com/uploads/1/3/4/4/134454637/a03d2b02ef2.pdfIn PDF document text
    • http://struna.bg/admin/kcfinder/upload/files/mulod.pdfIn PDF document text
    • https://wusinetowaje.weebly.com/uploads/1/3/4/4/134471696/2231112.pdfIn PDF document text
    • https://relans-nn.ru/images/docs/file/61630653362.pdfIn PDF document text
    • https://inflexi.com/kcfinder/upload/files/28256782970.pdfIn PDF document text
    • http://finadev-groupe.com/userfiles/file/ratukenukisug.pdfIn PDF document text
    • https://vikta-fish.ru/upload/files/69855248182.pdfIn PDF document text
    • https://lugafowak.weebly.com/uploads/1/3/4/6/134647172/2691213.pdfIn PDF document text
    • https://u-bal.com/uploads/files/71295853809.pdfIn PDF document text
    • https://postelezmasivu-liberec.cz/ckfinder/userfiles/files/betuvekepojonezul.pdfIn PDF document text
    • https://coffotea.com/uploads/files/202203211025443566.pdfIn PDF document text
    • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/1625d931e0db7d---wikijusujawu.pdfIn PDF document text
    • https://indiantiffin4me.com/nbloom/fckuploads/file/ruzijejamesibadara.pdfIn PDF document text
    • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/5e166cef08eb19be4307a9d2f433b634/guximapemesatosebaso.pdfIn PDF document text
    • https://lilawowawumoxo.weebly.com/uploads/1/3/1/4/131453384/ruxafoxigav_junonimudujag_vesuj_wisumebekad.pdfIn PDF document text
    • http://www.eau-msu.ru/ckfinder/userfiles/files/11454790925.pdfIn PDF document text
    • http://balade-pierry.fr/userfiles/file/kelalakogafokimi.pdfIn PDF document text
    • https://ideeverdi.it/upload/userfiles/files/fegodurogiselibit.pdfIn PDF document text
    • http://intelibud.net/media/files_manager/files/59444531831.pdfIn PDF document text
    • https://segamovav.weebly.com/uploads/1/3/4/8/134892249/miwufufezuletowuzuvo.pdfIn PDF document text
    • http://kifei.ru/files/files/45925409214.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_off00069919.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00069919.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00069919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69919 17664 bytes
SHA-256: 21d972471af2bff4858edde9ea61692dd4ac7ec5bbe17e6774e9ca1f9ede1939
font_01_sfnt_off0006c745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C745 11220 bytes
SHA-256: 328cefd4a856b49673c3f6c1ed16a1ea010c778cebd5fe23518752bb2e776209
font_02_sfnt_off0006e0ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E0EA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1