PDF malware analysis — malicious · 7823770647f11093

MALICIOUS

PDF

69.2 KB Created: 2021-09-28 06:49:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16

MD5: 93feebb71a994ab3f0a7baa4e22be9c1 SHA-1: afb92ec738750a246b0e999b78c8a923c84831de SHA-256: 7823770647f11093151ff22b37f99e9b2cc3af242819fdf05ae2556e7d4865a3

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9982

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://dorp.pl/userfiles/files/52830656529.pdf In PDF document text
- http://cu-mbc.com/ckfinder/userfiles/files/69496893823.pdfIn PDF document text
- https://semangkabiji.com/contents/files/wejanafosivuvibaxonevi.pdfIn PDF document text
- http://achwvs.love-mrt.com/upload/files/69656703135.pdfIn PDF document text
- http://yuanda-boiler.com/d/files/83409447314.pdfIn PDF document text
- https://motty-etai-sharon.com/files/files/63674429627.pdfIn PDF document text
- http://red-persimmons.com/upfiles/editor/files/58997426502.pdfIn PDF document text
- https://mklaassen.nl/images/file/82939909197.pdfIn PDF document text
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613616cbea773---tanuxama.pdfIn PDF document text
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613120c2df455---niwazapojadalelefutoka.pdfIn PDF document text
- http://syntra.pl/userfiles/file/lirovokoxasorilu.pdfIn PDF document text
- http://adria-ex.com/images/blog/file/mafagarebotobaku.pdfIn PDF document text
- http://ei-windykacja.pl/upload/file/86930706048.pdfIn PDF document text
- https://toananhmedical.com/uploads/files/50830348163.pdfIn PDF document text
- http://bk-plus.at/userfiles/files/48924641307.pdfIn PDF document text
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/7b4e098d492a7f2be52ca6b7c3792998/56506548345.pdfIn PDF document text
- https://peoplehelppeople.net/uploads/File/44536743569.pdfIn PDF document text
- https://pasationtravellers.com/root/FCKeditor/file/gagagiwigo.pdfIn PDF document text
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/e6268c4163f9fac7c51183173ab1db0a/25656230489.pdfIn PDF document text
- https://middletonchambers.com/ckfinder/userfiles/files/96650544346.pdfIn PDF document text
- http://hunicorn.hu/userfiles/file/rabizutasu.pdfIn PDF document text
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/16131c7debe844---40023049970.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=india+official+language+isPDF 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_off0000afd4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAFD4	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000c7eb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC7EB	10504 bytes
SHA-256: `fd8756a3bc43a3032c31281c65e2361af1ab3bc9549832327c0d8a2419639ad9`
`font_02_sfnt_off0000dfac.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDFAC	15540 bytes
SHA-256: `5c19fae3e9d3179a49c69eaec64e6ad56012b31846917a2cfdfa9169457ccb3a`

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