PDF malware analysis — malicious · aa8d47c27aaf0c7b

MALICIOUS

PDF

92.1 KB Created: 2021-11-23 17:49:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06

MD5: 3962a9380043b48f9c6a8c2eb797a662 SHA-1: 29b9136ae0aa782ee1df400f8a9815a782605bf4 SHA-256: aa8d47c27aaf0c7bd524f415bf4bf0bf1cba52d4c5ae65b9bbf7c87bcf7c6d56

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9977

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 http://baracenter.be/userfiles/file/3686213817.pdf In PDF document text
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/cf1e7ac5b491621b91d5804d03a05a10/50773541117.pdfIn PDF document text
- https://ppsu.cz/files/file/kamewamapijaforesom.pdfIn PDF document text
- http://ppogrimall.com/upload/editor_image/file/wonej.pdfIn PDF document text
- http://xn--90afqerdlt1f.xn--p1ai/admin/ckfinder/userfiles/files/nikumanilarep.pdfIn PDF document text
- http://rigassprotes.lv/uploadz/file/73022851142.pdfIn PDF document text
- http://kmjmt.com/news/upload/file/211004050408938336tr9zb6.pdfIn PDF document text
- http://11mortgage.com/images/e/file/72811679321.pdfIn PDF document text
- http://hp-cnc.de/uploads/files/31332379557.pdfIn PDF document text
- http://ilkemymm.com/image/files/63591287733.pdfIn PDF document text
- http://hcbarrett.com/user_area/file/2109975181.pdfIn PDF document text
- https://estudiowebcolombia.com/ckfinder/userfiles/files/35630833851.pdfIn PDF document text
- http://wagnerpc.com/userfiles/files/32545339346.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/6hfa8sjchl3duhu0em54dbc6p6/wopitezizuwililakaz.pdfIn PDF document text
- https://igruppe.no/ckfinder/userfiles/files/11194590200.pdfIn PDF document text
- http://flygarfield.net/userfiles/file/kupufasaboxabawovogelevo.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16131f550926f1---kafanufifepowaxaf.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/1619ab7103a528---wipinazuzo.pdfIn PDF document text
- http://memsports.com.br/admin/libs/ckeditor/ckfinder/files/56412661711.pdfIn PDF document text
- https://portofcrotone.com/dati/upload/file/32071301550.pdfIn PDF document text
- http://imaginove.eu/data/Files/ropif.pdfIn PDF document text
- https://drivetripper.com/userfiles2020/files/50548555886.pdfIn PDF document text
- https://feedproxy.google.com/~r/Gsjc/~3/BGAemAmcdTc/uplcv?utm_term=clockwork+orange+symphony+no+9PDF 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_off0001024b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1024B	11120 bytes
SHA-256: `d0e86c259fec3af35e8d05ee6ecbfb1a277f2d436e7b29339cbe0be1b6bb61c4`
`font_01_sfnt_off00011c2d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11C2D	16416 bytes
SHA-256: `cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336`
`font_02_sfnt_off000132cc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x132CC	18356 bytes
SHA-256: `6ddd8b18b2205d1fcfbe30af6b746323f8268a8153fcf09e23c71ea7a112be8d`

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