PDF malware analysis — malicious · 4e39d408ca401487

MALICIOUS

PDF

71.7 KB Created: 2021-06-17 23:10:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19

MD5: d42f733c8dfa27c0ba67aa05e1e4f64b SHA-1: 89b76510ea7c22bc0ecd930d73e6691f2955984d SHA-256: 4e39d408ca401487599cf9fa483da4f667bca59f685f6dc3fef65060a72ad61a

164 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://drafthe.ru/uplcv?utm_term=2nd+puc+english+notes+pdf+download+2020 PDF link annotation
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bfc06e0f432---9901438006.pdfIn PDF document text
- http://dobraukraina.org/sites/all/sites/dobraukraina.org/files/sasazafitewaraseragezofe.pdfIn PDF document text
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/9f44gcqitu50le18kjic8499kt/97629381714.pdfIn PDF document text
- https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/869f2ea2610d95bacc603c06bb574587/wusulul.pdfIn PDF document text
- http://shethof.ch/cgi-bin/dynamisch/file/91649784438.pdfIn PDF document text
- https://garyjetcenter.com/wp-content/plugins/super-forms/uploads/php/files/9b2816ae0952099629b3bd22c7e9e862/mogijopofuzatetuwubufoge.pdfIn PDF document text
- http://ed-web.cz/userfilesfile/naduwezivawufifinivir.pdfIn PDF document text
- https://comfortinnbarrie.com/phpsites/vertical_living/uploads/file/59869472350.pdfIn PDF document text
- http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/99893071038.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/co7kdl7e5aq16t1ck0a9d20agv/mozuvemanolu.pdfIn PDF document text
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16072c748efcdb---tegetunezepimug.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160bc63d2ec2c6---bisamidom.pdfIn PDF document text
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5b0c2710a3---26834802864.pdfIn PDF document text
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/6a6774fa43be76f131f0b5df4bb46f21/38909272876.pdfIn PDF document text
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a7539595ce1---60484992820.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c9a6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC9A6	5476 bytes
SHA-256: `59fe9f6e8cb41de52f79c20c19ce7e6b63dab22d16302e07f12b0acb887a7172`
`font_01_sfnt_off0000dc4e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDC4E	11000 bytes
SHA-256: `e7fd1f61766f0adbe2295384172cf4f3e062518f92758907809a8e99c3bdf963`
`font_02_sfnt_off00010174.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10174	4324 bytes
SHA-256: `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`

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