PDF malware analysis — malicious · 632ce013076463bc

MALICIOUS

PDF

89.7 KB Created: 2021-06-26 02:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05

MD5: e44326c4efe8395bd7124d114b67386c SHA-1: e83c879e35af9c11ee99b1190c0de9e886929e0b SHA-256: 632ce013076463bc8b2634ade01642d8c63027445668f8df25feb3154339b55e

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous external URIs and link farms hosted on compromised websites, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a spearphishing attachment designed to redirect users to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9942

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
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.
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=office+2019+vl+download+iso PDF link annotation
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/8b9053f0b797aa10bb2b138010e9ecfb/31211282720.pdfIn PDF document text
- http://radio6deenero.com/uploaded/files/wotekaxanefesaginusamevax.pdfIn PDF document text
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607f6d4c37768---23253525755.pdfIn PDF document text
- https://autoprofi.ua/userfiles/file/57087440130.pdfIn PDF document text
- http://bocghedanang.com/media/ftp/file/mazukopobijobamowur.pdfIn PDF document text
- http://sjar-tech.com/uploadfile/file///2021061815195780.pdfIn PDF document text
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16098b5883ded0---zasetular.pdfIn PDF document text
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b8d98aa11e6---gisonepijorupoxex.pdfIn PDF document text
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075d3e5a1c9d---kosafepomenoli.pdfIn PDF document text
- http://banghetretunhien.com/media/ftp/file/69584169218.pdfIn PDF document text
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/l6ed5mch5b34i1gvdaodnt20v0/xudavenigovapazo.pdfIn PDF document text
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/65e5405e955178f4103a66d85ead0544/84523911124.pdfIn PDF document text
- http://salonorganica.ru/upload/files/46293123440.pdfIn PDF document text
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608f71e56be28---13847002512.pdfIn PDF document text
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/34bff80dd7aec090e07b590ee99d8281/31704502782.pdfIn PDF document text
- http://kleiberit.ru/files/file/21320213579.pdfIn PDF document text
- http://csc0535.com/userfiles/file/20210625210908_horg6v.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160853cb75b4d2---jumobokiva.pdfIn PDF document text
- http://www.firengo.com/userfiles/files/pojik.pdfIn PDF document text
- http://altelaw.com/uploads/image/file/83008022544.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb9c406f78c.pdfIn PDF document text
- https://dienlanhhonganh.com/images/pic/file/67449870491.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/3549ed6febc68514e77abd96d2bc9421/83631684275.pdfIn PDF document text
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/fb2986a9833e43cef654b6285dd49852/86079965962.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000fbb5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFBB5	17000 bytes
SHA-256: `e6b99510f8716768bcd6fe1009eb537ae52753467deb64ad79c96faa28806f9b`
`font_01_sfnt_off0001282d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1282D	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00014044.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14044	10908 bytes
SHA-256: `98ca39a51d4dfb94ac315283253f739dfd74d39fea0064795e4ae6ef61384e5a`

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