Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f37306cbb3b5d7b…

MALICIOUS

PDF

290.9 KB Created: 2022-03-28 16:55:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: 6fe6913bc66fa9c30228cec848977ac5 SHA-1: 9a1aa03581a062ba91c545465d6f96d8a2a62bb7 SHA-256: 5f37306cbb3b5d7babec6b126561faf518f03324f03d89c3b9e707ed8a792382
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6855

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.
  • 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://colod.co.za/XSRYdR1H?utm_term=slug+it+out+promo+codes+for+android PDF link annotation
    • https://cauthinh.com/luutru/files/47368661541.pdfIn PDF document text
    • https://gskrem.ru/img/file/28221475424.pdfIn PDF document text
    • http://www.muen-roaster.com/img/ck_img/files/zakerogikowubi.pdfIn PDF document text
    • http://mijn-nederland.nl/userfiles/file/98886558632.pdfIn PDF document text
    • https://vanvoorst.info/uploaded/file/ruganapimupisinazaw.pdfIn PDF document text
    • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/29f3238eed86a9824107056a002f878f/wonoka.pdfIn PDF document text
    • http://newgrids.com/userfiles/file/vovizukamakimazagepuporuv.pdfIn PDF document text
    • https://www.silverskilled.com/gateway/kcfinder/upload/files/41267735000.pdfIn PDF document text
    • http://kapsalonvogue.nl/files/file/mozetetijop.pdfIn PDF document text
    • https://generace89.cz/kcfinder/upload/files/xogivapefiguxiwuwi.pdfIn PDF document text
    • https://alate.org/admin/fckeditor/editorfile/68514083846.pdfIn PDF document text
    • http://ares-gunshop.sk/admin/ckeditor/kcfinder/upload/files/guwes.pdfIn PDF document text
    • http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623a6d6f0a162---saribugozatoderutapezez.pdfIn PDF document text
    • http://kasae.org/userData/board/file/72134746181.pdfIn PDF document text
    • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1621418a5bf58a---pegazisop.pdfIn PDF document text
    • https://meesens.be/KrMee/Tekstverwerker/40905840833.pdfIn PDF document text
    • https://xyoaa.org/sites/default/files/files/28634527443.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/161fa7e66b060a---37359351372.pdfIn PDF document text
    • http://satcomlink.com/userData/board/file/tivofiretipovekobovib.pdfIn PDF document text
    • http://whuntex.ru/userfiles/file/wezurigoseberugapupas.pdfIn PDF document text
    • https://prolinenergy.com/Admin/plugins/ckeditor/kcfinder/upload/files/xujipi.pdfIn PDF document text
    • http://aptekainternetowa.net/_mdm_apteki/file/vozadumorewez.pdfIn PDF document text
    • https://o-dance.com/upload/files/depudavagupugopixibu.pdfIn PDF document text
    • http://geometrarontani.it/userfiles/files/45614435608.pdfIn PDF document text
    • http://rockbond-aac.com/id-admin/fckImages/file/zomekelevurim.pdfIn PDF document text
    • https://zareenfood.com/userfiles/files/83195049035.pdfIn PDF document text
    • http://spprp.pl/userfiles/file/31074766341.pdfIn PDF document text
    • http://jingluo.net/uploadfiles/files/ravadunogodom.pdfIn PDF document text
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620b25cdb5207---kokoxitiwawoletumoz.pdfIn PDF document text
    • http://ambvet-trefontane.eu/userfiles/files/noxulosog.pdfIn PDF document text
    • https://adm.ativo.com/js/kcfinder/upload/files/nuwosedufofoneso.pdfIn PDF document text
    • https://shih-tzu.ro/files/file/pazanitafezuke.pdfIn PDF document text
    • http://remaining-mc.de/userfiles/file/roguxasokoripawoxelifebop.pdfIn PDF document text
    • https://ric-sb.si/uploads/files/razodijekajavajejel.pdfIn PDF document text
    • https://bawaniint.com/ckfinder/userfiles/files/dubis.pdfIn PDF document text
    • https://unitedfightalliance.jordanadams.com/ckfinder/userfiles/files/dipopamitejutazikejisoxe.pdfIn PDF document text
    • http://www.shriramhariram.com/kcfinder/upload/files/65672558273.pdfIn PDF document text
    • http://advocaciaciervo.com/kcfinder/upload/files/vimemewo.pdfIn PDF document text
    • https://voziky-paletove.cz/mctree.cz/pictures/other/files/muteriwibezofero.pdfIn PDF document text
    • https://www.cascatai.com.br/ckfinder/userfiles/files/71061233409.pdfIn PDF document text
    • https://emtracing.net/userfiles/file/govumifinumasoteno.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_off000418d0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000418d0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000418d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x418D0 11136 bytes
SHA-256: 5f0276a14333fb62526ad3088e2f6268b988e81b1f2ed44fc98dcea614caa879
font_01_sfnt_off0004329b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4329B 19076 bytes
SHA-256: 447549f4c546d13ac7a00237329b2a20d98545b46c216e744336d3d94c18338a
font_02_sfnt_off0004647f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4647F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9