Malicious PDF — malware analysis report

Static analysis result for SHA-256 624e28f8a5345dcb…

MALICIOUS

PDF

313.9 KB Created: 2022-01-02 21:37:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 4709c176fb5ae0d5a000c6b300fd65ed SHA-1: f301ec376530b8f55442b3be8fbb0a25aecc7d88 SHA-256: 624e28f8a5345dcb2b93ad01cbe498e8ab081b2cfff79d020f1602109421ce21
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8383

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://gorre-paysage.fr/ckeditor/kcfinder/upload/files/gusebuwekabesoriganalovu.pdf In PDF document text
    • http://www.ags-sib.ru/ckfinder/userfiles/files/5614666585.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161beafc5b1c5a---bubofoga.pdfIn PDF document text
    • http://rszm88.com/upfolder/e/files/20211017001034.pdfIn PDF document text
    • http://aerotherminsulation.com/userfiles/file/gusuzomuxetujozutisu.pdfIn PDF document text
    • http://lesmashclub.com/imgUpload/files/sonanovuw.pdfIn PDF document text
    • http://bukharageorgia.com/sites/default/files/file/nimodakolususubowide.pdfIn PDF document text
    • http://www.pethouse.es/ckfinder/userfiles/files/nodenemulonikujadimuko.pdfIn PDF document text
    • https://specializedfacilitymgt.com/public_html/userfiles/file/bujitigutegu.pdfIn PDF document text
    • https://fibra-optica.ro/ckfinder/userfiles/files/medaravave.pdfIn PDF document text
    • http://nedvizhimost-v-sharm-el-sheikhe.ru/uploads/files/duzopagakuguzu.pdfIn PDF document text
    • http://eblast.stationhub.com/Upload/file/26473386057.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1619b19a986145---14362308763.pdfIn PDF document text
    • http://cuacuonductudong.com/upload/files/43468602207.pdfIn PDF document text
    • https://pezenasenchantee.fr/userfiles/file/latikedama.pdfIn PDF document text
    • http://constantemail.com/userfiles/file/1639780518nerosopinab.pdfIn PDF document text
    • http://2015.letnifestiwal.pl/ckfinder/userfiles/files/paxivutatemo.pdfIn PDF document text
    • https://szallas-karpatalja.net/upload/lapimirex.pdfIn PDF document text
    • https://trainova.com/userfiles/file/85206492383.pdfIn PDF document text
    • https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616a48e3436da---xajovamodidufipawide.pdfIn PDF document text
    • http://maha.tcnme.com/chop/multimedia/userfiles/file/18593639220.pdfIn PDF document text
    • http://centrodebridge.pt/ckeditor/kcfinder/upload/files/pesaj.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/Z3ufxtS7Wvw/uplcv?utm_term=plastic+glazing+sheetsPDF link annotation
    • 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_off00047e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47E6A 10352 bytes
SHA-256: d6d77b0755d34e06eac04da0e0a0388808c2be5ca3977ee8d2ba5256e2102c4d
font_01_sfnt_off000495c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x495C3 17264 bytes
SHA-256: 06db0667f2d23e3d2310a9f69aa5a176488ab84982295a9214859238932354df
font_02_sfnt_off0004c2bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C2BD 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336