PDF malware analysis — malicious · 4e36dacc83d15ed2

MALICIOUS

PDF

258.5 KB Created: 2022-01-23 15:08:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: 74e88872311ddca5c122c0661fbd1746 SHA-1: 8d635dcf825228bf9819549da6b1bfeb4e8ca64e SHA-256: 4e36dacc83d15ed2a385c93e3e1f560695c884b136094910fde2da229cd70413

166 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.7170

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://himalayanwanderer.com/himalayan/userfiles/files/sumav.pdf In PDF document text
- http://autovoda.ru/upload/files/mumamipa.pdfIn PDF document text
- http://www.brickchamber.com/ckfinder/userfiles/files/jutaxekutebanudarasudag.pdfIn PDF document text
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615c49d122045---30368934915.pdfIn PDF document text
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d48b5ed7609---fuxeba.pdfIn PDF document text
- http://www.xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/risolepadidojugi.pdfIn PDF document text
- http://balie.overeembv-profielen.nl/upload/files/93661985171.pdfIn PDF document text
- http://jd6618.com/jd6618/file/2021-11/file/LwpCms2021_11_29_04_42_04_6140.pdfIn PDF document text
- http://phongthuyphatloc.com/luutru/files/50386465649.pdfIn PDF document text
- http://www.findvoters.com/userfiles/file/mugorixatimelikedan.pdfIn PDF document text
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613f1c0c3d00e---20571748308.pdfIn PDF document text
- http://christmaslandint.com/userfiles/72932356761.pdfIn PDF document text
- http://bndweb.nl/upload/files/9760934014.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613278c33b886---40663120139.pdfIn PDF document text
- https://thuhuonglacquer.com/uploads/news_file/70259093455.pdfIn PDF document text
- http://www.ondebiz.com/userfiles/file/ruxevixidurovi.pdfIn PDF document text
- http://lumieye.com/userData/ebizro_board/file/raboluzopasudego.pdfIn PDF document text
- http://xn----7sbicwad4afgcgd5aph7d5e.xn--p1ai/ckfinder/userfiles/files/89800926667.pdfIn PDF document text
- http://abovomedia.hu/_user/file/bivasawasimununudi.pdfIn PDF document text
- https://inprovitpuertorico.com/ckfinder/userfiles/files/luvix.pdfIn PDF document text
- http://busangh.com/attfile/fckimg/file///20211011102331_411162779.pdfIn PDF document text
- https://aymexco.ro/ckfinder/userfiles/files/dijala.pdfIn PDF document text
- http://weldingplaza.com/files/file/46765581315.pdfIn PDF document text
- http://xinchenfast.com/upload/file/18184206544.pdfIn PDF document text
- http://ingenermarket.ru/userfiles/34473155022.pdfIn PDF document text
- http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/161c5258234193---vizepiborowimegorafitug.pdfIn PDF document text
- http://betriacum.madteam.net/ckfinder/userfiles/files/tidixiji.pdfIn PDF document text
- http://alvit-bk.ru/userfiles/file/vufasafawakuxozosa.pdfIn PDF document text
- https://gobelsprofil.com/upload/files/lonelelisirivizedego.pdfIn PDF document text
- http://nayyaralidada.com/alpha/ckfinder/userfiles/files/tuwuteb.pdfIn PDF document text
- http://kirakuramen.com/uploads/files/tosotir.pdfIn PDF document text
- http://scandirent-new.ru/uploads/assets/file/53327068674.pdfIn PDF document text
- https://mimpishio1.com/contents/files/14275728261.pdfIn PDF document text
- http://mmsmarin.com/imgimage/file/97616160600.pdfIn PDF document text
- https://www.ijestr.com/ckfinder/userfiles/files/13670103819.pdfIn PDF document text
- https://ctners.com/ckfinder/userfiles/files/kifevagepafovorowi.pdfIn PDF document text
- http://www.nena-artspace.com/ckfinder/userfiles/files/31069973153.pdfIn PDF document text
- http://atya.eu/files/file/duzatowikalaboliniku.pdfIn PDF document text
- http://drsuthichai.com/userfiles/files/94973041515.pdfIn PDF document text
- http://etkenkalip.com/files/jasuwunaga.pdfIn PDF document text
- http://homeloanz.net/images/e/file/40010089158.pdfIn PDF document text
- http://feedproxy.google.com/~r/MbOu/~3/896FEnmJZlk/uplcv?utm_term=kinect+for+windows+sdk+programming+guidePDF 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.

Filename	Kind	Source	Size
`font_00_sfnt_off00039e64.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x39E64	11188 bytes
SHA-256: `ac67f65c66b294d5228726e87e5f7da73990edee222999f7c4b4d2bbe20bee0a`
`font_01_sfnt_off0003b872.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3B872	16412 bytes
SHA-256: `2854364d4e72de5db195c60cc9a4ac3f104170f429d56c5036f5f252eee0a869`
`font_02_sfnt_off0003e310.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3E310	16416 bytes
SHA-256: `cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336`

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