PDF malware analysis — malicious · 3dd4c9c924e63a74

MALICIOUS

PDF

85.7 KB Created: 2021-09-11 07:49:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26

MD5: 3bde26cff5203ae9cbbd1b387245ce63 SHA-1: 6a99a4c02ce43e262c07072ce87655d1fe0c78dc SHA-256: 3dd4c9c924e63a749c07a8025df4ff3781f43c3d63706edbf97bddb20da293e9

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9952

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://archism.ru/uplcv?utm_term=best+keyboard+app+for+tablet PDF link annotation
- http://phdpecs.hu/userfiles/files/xujofute.pdfIn PDF document text
- http://banquat.com/userfiles/files/redovaxapu.pdfIn PDF document text
- https://pepsima.biz/files/file/83489376127.pdfIn PDF document text
- http://t-eamplus.de/web/editor/files/16393341277.pdfIn PDF document text
- https://mrpressconsulting.com/UserFiles/file/wijezaxolevezo.pdfIn PDF document text
- http://willowslakerhea.org/userimages/62949732979.pdfIn PDF document text
- http://seattlebestteriyaki.com/uploads/files/53018552591.pdfIn PDF document text
- http://dorrstrechy.cz/UserFiles/File/56553016733.pdfIn PDF document text
- http://meuseguro.top/fotosempresa/files/35223037757.pdfIn PDF document text
- https://heyratacademy.ir/file/87584015285.pdfIn PDF document text
- http://worldwidestationeryholdings.com/files/file/31490629895.pdfIn PDF document text
- http://wowbond.com/upload/Fckeditor/file/40531177998.pdfIn PDF document text
- https://lasanisports.com/files/20860728942.pdfIn PDF document text
- https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/c49ggd7cklt6cce9na749a3od0/rugodimilupapewozixen.pdfIn PDF document text
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1613a89479e20f---54563864146.pdfIn PDF document text
- https://groupunsur4.com/contents/files/12425491175.pdfIn PDF document text
- http://vividconcept.in/userfiles/file/foxufadamob.pdfIn PDF document text
- http://naturenhuman.com/app/webroot/userfiles/file/wizupabudelusavepeje.pdfIn PDF document text
- https://distriparkbotlek.nl/userfiles/files/vawasase.pdfIn PDF document text
- https://legacydockandmarine.com/wp-content/plugins/super-forms/uploads/php/files/aee78ca1f85055b9818f6bb7e812eb1a/pazoxovov.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/14019094692.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613c068e58688---1191250741.pdfIn PDF document text
- http://lacasedescaraibes.fr/file/69227899291.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_off0000eadd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEADD	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off000102ef.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x102EF	17760 bytes
SHA-256: `479a64cd7d065f23d6b698913cacd87545dbbf35ef8ebe09c8adc5fd9e0dad7c`
`font_02_sfnt_off00013110.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13110	10696 bytes
SHA-256: `2062cb950e69a09be8acc256f8b02bcc6759a27eda353252c40e6546d840ae17`

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