PDF malware analysis — malicious · af22e17aaccc1a1d

MALICIOUS

PDF

73.1 KB Created: 2021-10-13 14:34:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21

MD5: ee8a1d847ef557e83e3fab7babec6f6a SHA-1: 5940226cd758e1b70ace6e451bd4abc35a27de45 SHA-256: af22e17aaccc1a1daced09f9e0cf8536bd17ce08130bc96e0f2fb174ca0d85ac

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9981

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://ketchas.ru/uplcv?utm_term=throwable+class+in+java+example PDF link annotation
- https://luxurybaths.marblobaths.ph/app/webroot/img/files/36607080731.pdfIn PDF document text
- http://bradzo-ep.com/uploads/files/79793441185.pdfIn PDF document text
- http://aal.tw/uploads/htmlupload/files/42527528633.pdfIn PDF document text
- http://tokstar.com/_UploadFile/Images/file/96677864372.pdfIn PDF document text
- http://leprofit.ee/cmsfile/contentfiles/19853163302.pdfIn PDF document text
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/7163b00e66fb6a7337965cd9ad3e78f5/130146761.pdfIn PDF document text
- http://kientrucsangtrong.com/plus/files/bejizif.pdfIn PDF document text
- http://associatedreclaimed.com/userfiles/files/61879375328.pdfIn PDF document text
- https://marblobath.marblobaths.ph/app/webroot/img/files/74947451813.pdfIn PDF document text
- http://daugiavanthienphuoc.com/media/ftp/file/letelugozo.pdfIn PDF document text
- https://vietrocknet.org/app/webroot/img/files/rilekifi.pdfIn PDF document text
- http://reguitti-engineering.it/userfiles/files/petobefimigufif.pdfIn PDF document text
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/stj2u43vjdlqj5etc0qq01n98e/91137388825.pdfIn PDF document text
- https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/0952e6792954850df28e7d45d2616f09/desuwemuwidadanan.pdfIn PDF document text
- http://mail-ex.net/userfiles/file/55012817655.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/16130bba3044f7---xefozenanumebuxe.pdfIn PDF document text
- http://zeroseistudio.eu/userfiles/files/xosivemugiloka.pdfIn PDF document text
- https://reniuved.it/file/sawofonizexanaromuder.pdfIn PDF document text
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1612fab889d111---motujipevuxibowiger.pdfIn PDF document text
- http://csc0516.com/userfiles/file/20211010215447_al60kp.pdfIn PDF document text
- https://karapinler.com/calisma2/files/uploads/foduw.pdfIn PDF document text
- http://www.prunay-en-yvelines.fr/ckfinder/userfiles/files/fewunuko.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_off0000bbc3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBBC3	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000d3da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD3DA	11028 bytes
SHA-256: `679bc7eccd5a11a19400260fe91177962f92386b5e796379d830c18fea56e665`
`font_02_sfnt_off0000ed15.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED15	16328 bytes
SHA-256: `0f48f9343d0bd55500487f497172079652ff6db623e99fc98d16d88ef5d17ad6`

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