Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7396aa4a5aab6a…

MALICIOUS

PDF

258.4 KB Created: 2022-01-17 19:06:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 9674ce5607b864868c73cdd34d25f064 SHA-1: dc09ef0725ddcf104c86dab905cf32bb22a4f2f7 SHA-256: cd7396aa4a5aab6ac3cef384a0f085e90d2e5f58854c2466303c7d214b9ba3a2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7309

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://irlanc.ru/uplcv?utm_term=anti+discrimination+bill+pdf PDF link annotation
    • http://skkouty.cz/ckfinder/userfiles/files/66267830977.pdfIn PDF document text
    • http://kingsfci.com/userfiles/file/telapo.pdfIn PDF document text
    • http://4bx.pl/public/file/80788485346.pdfIn PDF document text
    • http://getsolarnj.com/userfiles/file/33677024349.pdfIn PDF document text
    • https://furedgym.webtarhely.org/webroot/upload/files/xudowevodidesebiw.pdfIn PDF document text
    • http://newabel.com/ckfinder/userfiles/files/47404222061.pdfIn PDF document text
    • https://www.nvsrolko.org/ckfinder/userfiles/files/31923955801.pdfIn PDF document text
    • https://maviet.vn/upload/files/31055890317.pdfIn PDF document text
    • http://rioairporttransfer.com/ckfinder/userfiles/files/lejam.pdfIn PDF document text
    • https://pilot-nav.socksnbows.com/ckfinder/userfiles/files/46766175549.pdfIn PDF document text
    • https://tonmathunglan.vn/upload/files/97942369148.pdfIn PDF document text
    • https://emenu.hu/editor_up/21653304649.pdfIn PDF document text
    • https://all-stage-meditation.tw/uploads/files/617d33e1c89cc.pdfIn PDF document text
    • http://6nergy.fr/6nergy/sites/default/user/file/12927958968.pdfIn PDF document text
    • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161533e83836ad---videzuwukuxad.pdfIn PDF document text
    • https://tiemhoamo.tiemhoahaibara.com/data/dulieu/files/11671265494.pdfIn PDF document text
    • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/161947c6f22c6f---perinuzotizidulivutovagak.pdfIn PDF document text
    • http://nhatrangpalace.vn/app/webroot/upload/files/81261887873.pdfIn PDF document text
    • http://zjqzzx.com/uploadfile/file/2021090716382673499.pdfIn PDF document text
    • http://fishlinkworldwide.my/assets/kcfinder/upload/no_user/files/64257267846.pdfIn PDF document text
    • http://jobsandhi.com/uploaded_files/userfiles/files/78795951555.pdfIn PDF document text
    • http://contua.org/userfiles/file/pekitewavoju.pdfIn PDF document text
    • https://middletonchambers.com/ckfinder/userfiles/files/59750570596.pdfIn PDF document text
    • https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/161a55d3f01244---39746912124.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_off00039d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39D9F 10768 bytes
SHA-256: 6463ee7b66202b586995e6a2441b1b9a24d642e317831acebc30f9892f4fdc4e
font_01_sfnt_off0003b624.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B624 17488 bytes
SHA-256: 4b29db751cb717390a28ddac2a64237aa3be4306674c6a96e2ed3e13c0bc68e6
font_02_sfnt_off0003e3f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E3F5 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336