Malicious PDF — malware analysis report

Static analysis result for SHA-256 624ed12e169cddf5…

MALICIOUS

PDF

701.0 KB Created: 2021-12-17 15:56:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: c7fced3baf979fe4db66ae06eb9f3a81 SHA-1: 55af34852740a7f197a29a0caa91a9b5584b22cc SHA-256: 624ed12e169cddf586989faf5e363ec7f4f02abc9159faa2316c0429da19ebed
136 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.2419

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://transchem-tech.com/Uploadfiles/files/totuxijodeleb.pdf In PDF document text
    • http://www.bash.cl/media/file/95882496461.pdfIn PDF document text
    • http://tetrafluoro.com/upload/files/lexebevigixememujibe.pdfIn PDF document text
    • https://kawanmto.org/contents/files/98855626322.pdfIn PDF document text
    • http://yensaophanrang.net/userfiles/file/58311957043.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616515fee8e88---kaxewotulesoxeru.pdfIn PDF document text
    • http://isspskola.lv/userfiles/files/33524840814.pdfIn PDF document text
    • http://bischofs-scheune.de/userfiles/file/39684102107.pdfIn PDF document text
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/cerm6uq5pi81o60oc4rd035444/344785586.pdfIn PDF document text
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1619351b01af2b---towoximuro.pdfIn PDF document text
    • http://drsuthichai.com/userfiles/files/namesamapepixanaj.pdfIn PDF document text
    • http://amandamaitland.com/images/file/78826471966.pdfIn PDF document text
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/b3e04e59767ffeb9b37c4ddc47a8ea18/lamedozisadojasopunupiza.pdfIn PDF document text
    • http://xn----8sbemnkjd7bfu.xn--p1ai/design/img/upload/file/80480401257.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b09171c4a48---gamija.pdfIn PDF document text
    • https://nepaltrekkinginhimalaya.com/assets/userfiles/files/powatobipebawedukifok.pdfIn PDF document text
    • https://mmagame.com/userfiles/file/lejireme.pdfIn PDF document text
    • http://jjw-led.com/userfiles/file/41416408938.pdfIn PDF document text
    • http://zkmeiqi.com/admin/ckfinder/upfile/files/49353345868.pdfIn PDF document text
    • http://comfortreality.sk/userfiles/file/danunofuzudipes.pdfIn PDF document text
    • https://vinacomvietnam.vn/uploads/news_file/mugujetixoveteme.pdfIn PDF document text
    • http://sictombbi.fr/ckfinder/userfiles/files/volimivemuxewenesejawizor.pdfIn PDF document text
    • http://ngor2-3.com/file_media/file_image/file/65958657605.pdfIn PDF document text
    • http://alpanelektrik.com/depo/sayfaresim/file/66848102892.pdfIn PDF document text
    • http://ge-mak.com/files/26695634910.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/cmwvf4RlXg4/uplcv?utm_term=dying+to+be+me+pdfPDF 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_off000a877d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA877D 18112 bytes
SHA-256: 0b9e61d9adb3d3cabd1202bab1ab61cebbcae1d6607618aadaffb464160a4fab
font_01_sfnt_off000ab6be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB6BE 10620 bytes
SHA-256: 587d268c9c935afc848fc3bd3a88ab5659266a3b1197a3a3bfe961ca8acc9e3d
font_02_sfnt_off000ace91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACE91 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336