PDF malware analysis — malicious · 5d88ee1b9dada97a

MALICIOUS

PDF

71.5 KB Created: 2021-10-14 14:28:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18

MD5: 013b74c8227710a4e3ea7bb88ca6d0a8 SHA-1: 09e8bd385b583d64492646f209ef589a52d50f81 SHA-256: 5d88ee1b9dada97a9460a4e2862b8ccd6dc8fd03ba7e919162e30811cb954c6f

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9965

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://allytemp.ru/uplcv?utm_term=curvy+body+meaning PDF link annotation
- http://umrllc.com/userfiles/files/10424159804.pdfIn PDF document text
- https://purefeeling8.com/data/file/1885514265.pdfIn PDF document text
- http://futsalcb.cz/picture/vtextu/file/matujogosefil.pdfIn PDF document text
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/725e908d40042c68478128084395b200/80938726450.pdfIn PDF document text
- http://chocoenglish.com/_UploadFile/Images/file/30924138161.pdfIn PDF document text
- https://dusunceokulu.net/resimler/files/1479915512.pdfIn PDF document text
- http://terezmisszio.eu/files/file/rovulugivagesu.pdfIn PDF document text
- http://spiregene.com/image/files/20210920_035319.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1615905b432885---71339681901.pdfIn PDF document text
- http://s-pack.kr/userfiles/file/20210913010551.pdfIn PDF document text
- https://borgopitti.it/userfiles/file/wufolarokelagoni.pdfIn PDF document text
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130dee9d1b4e---bupijewol.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132d079b11fc---66234114848.pdfIn PDF document text
- http://orderleesushi.com/uploads/files/nokifasodan.pdfIn PDF document text
- http://harposwebdesign.nl/app/webroot/files/userfiles/files/wogozekifakat.pdfIn PDF document text
- http://wimborst-ceramics.nl/ckeditor/ckfinder/userfiles/files/77133489362.pdfIn PDF document text
- https://www.dooleysnaturalgas.com/ckfinder/userfiles/files/kelibituwunar.pdfIn PDF document text
- https://ksi-system.pl/editorfiles/file/dejuludizip.pdfIn PDF document text
- http://savaksangida.com/resimler/files/pogisaxe.pdfIn PDF document text
- https://www.blondel-bois.fr/ckfinder/userfiles/files/54842412395.pdfIn PDF document text
- http://dlugopis.kbo.pl/ckfinder/userfiles/files/31075889601.pdfIn PDF document text
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16153d5591fcde---67735732176.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_off0000b65a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB65A	16492 bytes
SHA-256: `0636469b0b7867991cc650eac181dbeb68e912a0a35ac4d95dc13fc74d04aeb1`
`font_01_sfnt_off0000e06f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE06F	10732 bytes
SHA-256: `c96d946bf36e8591855f66f303543e63aa9f1000d5a15cb819630171e8a3ccd4`
`font_02_sfnt_off0000f8d7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF8D7	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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