Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7e5cbbb8732461…

MALICIOUS

PDF

276.9 KB Created: 2021-12-30 00:15:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 78b69d1d33e6d906a44ddecce8647b0f SHA-1: 00cd7ff0d9350d5b6c97761581c9d7f16c63de73 SHA-256: cd7e5cbbb8732461f83b9968dcb21c1e262a222b8a882a7aa58a371fa204d8fe
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7309

Heuristics 7

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://ketchas.ru/uplcv?utm_term=pictures+of+food+guide+pyramid PDF link annotation
    • https://www.grdr.org/paidel/ckfinder/userfiles/files/8107975622.pdfIn PDF document text
    • https://www.aaptuk.org/ckfinder/userfiles/files/12918577243.pdfIn PDF document text
    • https://btsis.com/upload/ckfinder/files/7489078483.pdfIn PDF document text
    • http://hugslock.com/app/webroot/img/files/42436917592.pdfIn PDF document text
    • https://dpdpunjabi.myskoolapp.com/FCKeditor/FCKimgUpload/file/75383541807.pdfIn PDF document text
    • http://fecoil.com/userfiles/file/vakupu.pdfIn PDF document text
    • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/ji09bf91qihud3v4fqh64cqjhm/90089951836.pdfIn PDF document text
    • https://jyapa.com/jhuoyue/uploadfiles/resixodaruni.pdfIn PDF document text
    • https://villadorottya.hu/uploads/frontend/files/33752641920.pdfIn PDF document text
    • https://brincandoeaprendendo.com/fotosempresa/files/wopoje.pdfIn PDF document text
    • http://cuanhavesinh.com/userfiles/file/mikum.pdfIn PDF document text
    • http://185.33.116.145/~acus01/upload/files/rivimalopodoro.pdfPDF link annotation
    • http://ekosertifikat.uznature.uz/userfiles/file/zalep.pdfIn PDF document text
    • https://www.lipca.com/ckfinder/userfiles/files/31814259352.pdfIn PDF document text
    • http://kompaspt2.com/contents/files/vadonedetidafa.pdfIn PDF document text
    • http://ricarda-allegra.de/userfiles/file/vosetumejibobolufitem.pdfIn PDF document text
    • http://stapper.de/sites/default/files/userfilesfile/33588550711.pdfIn PDF document text
    • https://ashasuchikala.com/ckfinder/userfiles/files/zibeledekesixori.pdfIn PDF document text
    • https://bharatceramics.in/ckfinder/userfiles/files/binasava.pdfIn PDF document text
    • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/7dfce7f422b53f1fa1d76a2fdad0b549/muzamu.pdfIn PDF document text
    • http://verduciautodemolizioni.it/userfiles/file/61664019178.pdfIn PDF document text
    • http://madmojo.com/fckupload/file/gozasesogazu.pdfIn PDF document text
    • http://meditopthailand.com/file/babexakugiwok.pdfIn PDF document text
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/d0c71bd45896fcb4a29d0273cc16e2cc/fovofenudaga.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_off0003e25b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E25B 11028 bytes
SHA-256: 8caf5118223a34431bca86318a38b0647b8aa603d85c6495aa108469613d92c2
font_01_sfnt_off0003fbee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FBEE 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0004128d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4128D 19432 bytes
SHA-256: 01899a16abcf2a21816d516c5a643988d4c43ebf0d35ec79c6520730db1eaf8d