PDF malware analysis — malicious · cd76c0f1238ed266

MALICIOUS

PDF

89.4 KB Created: 2021-07-18 13:57:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: 9174b2d929c730b7fd8f0eae09ff695f SHA-1: 5dd49456400ad01205e573356a0284cf422cb6e9 SHA-256: cd76c0f1238ed266f28ea31fb3d184cb07488f570a12e2ad9dbca023cb6daa96

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9835

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://alimentosldm.com/userfiles/file/8382027544.pdf In PDF document text
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609ceff195513---59387388561.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/16074a14319af1---17076940244.pdfIn PDF document text
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3b7509a3d---xiperitixojik.pdfIn PDF document text
- http://ciaooo.ru/uploades/userfiles/file/nerivoboborupesefisig.pdfIn PDF document text
- http://rotarylaspalmas.orgdocumentos/file/tomenimadeliwuzirela.pdfIn PDF document text
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/50219eb04476b843f25c67b8ba901c0b/17007500611.pdfIn PDF document text
- https://joebalogh.ro/imagini_ws/rakenogoxorogopim.pdfIn PDF document text
- http://mai-colle.jp/userfiles/file/wazodatulodavupevigumag.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160809198bbd33---fosolulibupitexolun.pdfIn PDF document text
- http://falconfam.com/ckfinder/userfiles/files/76539822813.pdfIn PDF document text
- https://tierrettung-in-katalonien.org/ckfinder/userfiles/files/pevapobuvojarufisuxagemib.pdfIn PDF document text
- http://ipmarketing.net/userfiles/file/35420542311.pdfIn PDF document text
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160820b1d27db8---37514224122.pdfIn PDF document text
- http://sziazsauto.com/uploads/files/kojixurinezejev.pdfIn PDF document text
- http://szzxwx.com/Upload/Upload/file/2021781110113798.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/7fa219eb32f6e4c449cd814b76fa1f07/duwukanobakakolipifunomun.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1609a0d2101e25---64790481852.pdfIn PDF document text
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/49ec9c4d0c7c4d835cef73ef24b85d00/29480643205.pdfIn PDF document text
- http://artecgroupservices.com/imagenes/file/zuwediwazenetopez.pdfIn PDF document text
- https://biothiennam.com/media/ftp/file/muzazefakevitukiwotu.pdfIn PDF document text
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be7f0b36288---tagosajitudim.pdfIn PDF document text
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/br4prba4k33sjrhfr84ul1dahf/28895912552.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/f3b28cfb9ee1a75023e5bc18e5e6849f/xodifuwopuruluravude.pdfIn PDF document text
- https://hgb.se/filer/file/maduwoporewuwibum.pdfIn PDF document text
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/79bbaad1e15a691d7112a60c53fb72e5/2336076145.pdfIn PDF document text
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9627e711c---81677202616.pdfIn PDF document text
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160775f7a128b2---11286726291.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=mad+respect+meaningPDF 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_off0000fa94.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFA94	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off000112ab.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x112AB	10684 bytes
SHA-256: `b53047acef1e38f55cb049da015218d5b54ec5e38f9357edf7eb9a090cb01e80`
`font_02_sfnt_off00012ae9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12AE9	17308 bytes
SHA-256: `ef5e2203b4af0c6b17e5062811cd233a26a0132ca5b25e9acb38eb3a92d0ac50`

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