PDF malware analysis — malicious · 78239497c22e446d

MALICIOUS

PDF

83.2 KB Created: 2021-07-17 21:48:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16

MD5: 0f459e31a0bc771598612f0f7e823cab SHA-1: fce5ad11703fecd0da4bca5550ce16d8e2d4e936 SHA-256: 78239497c22e446d89f6c09f8721ca34951efbfaa156d9ab3a45a4d654ec3a56

164 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9860

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
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.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160855cf49014d---47909929382.pdf In PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160736b4ee0274---77570516442.pdfIn PDF document text
- http://cesishotel.lv/res/wysiwyg/file/xanuxeko.pdfIn PDF document text
- http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/p4b5j0kmpsrckeolk4jf3n27er/60919362005.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bc7a89075f---45183256973.pdfIn PDF document text
- https://hometeamcorp.com/images/usr/77243546722.pdfIn PDF document text
- https://lymfologi.se/anvandarbilder/221/files/945744669.pdfIn PDF document text
- http://tofuyatogo.com/uploads/files/batanume.pdfIn PDF document text
- https://aartipalette.com/userfiles/file/lidomulalunazodivexukop.pdfIn PDF document text
- https://ohcsi.com/ckfinder/userfiles/files/mebudevujikedudadotuxo.pdfIn PDF document text
- http://www.lugashotel.com/data/editorfile/lutitodizovo.pdfIn PDF document text
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/k7rc7as1lpl3irg5kipbcbaht7/tedisogotofobejow.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160b76955961e7---30314754594.pdfIn PDF document text
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/4m4bdcsvv8rcqkvanqqqv2smkq/58269434693.pdfIn PDF document text
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609081e1b5e9f---bemibuxatanewabufuziv.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/d7srgot3l89n5tg8rv4bdnnjp6/mizutokariminasanufikuwi.pdfIn PDF document text
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/e8a1df2c12ba6a9c01a5ca41f27fcec0/30998079240.pdfIn PDF document text
- https://geneticapanama.com/userfiles/file/mamanonisabonerurani.pdfIn PDF document text
- http://icwest78.com/clients/67591/File/wesabapiturugi.pdfIn PDF document text
- http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/22542934123.pdfIn PDF document text
- http://dongphuctqueen.com/upload/files/dufusorabodilemu.pdfIn PDF document text
- https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/a140d4b0gslftlp45u21gote9m/15296438102.pdfIn PDF document text
- https://carea2plus.com/wp-content/plugins/super-forms/uploads/php/files/1788f914a8b24834575e475edb9cd40b/bamoruzefigepa.pdfIn PDF document text
- https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/c2f453ddefb199d395a104cbfa52d2f3/8873777434.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c29e8a8f408---98675832614.pdfIn PDF document text
- https://dildendilecevirievi.com/upload/ckfinder/files/96135185572.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=computer+graphics+principles+and+practice+4th+edition+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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000dd9f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDD9F	17720 bytes
SHA-256: `7cc67cfc14df8b0a73ccfb3b1b5143b107b24a68840ffca2fa49523f245b4a7c`
`font_01_sfnt_off00010c8f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10C8F	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off000124a6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x124A6	11276 bytes
SHA-256: `5eedcef25ff8bbd0ad32d61146215bc0b1cb661318b7d33aaa489bbd65f96f20`

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