MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many embedded URLs pointing to compromised WordPress sites and disposable domains, suggesting a phishing or malware distribution scheme. The PDF document body was unreadable, but the presence of numerous external links strongly supports a malicious purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF 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.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://cructi.ru/uplcv?utm_term=combination+multiplication+word+problems PDF link annotation
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/96ba560c6fe33e3f55056f2e52cad031/bufinimoliminiwasuwugijat.pdfIn PDF document text
- http://pamat.ro/UserFiles/file/90598990442.pdfIn PDF document text
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/dhq6o6c54ad6hc17hsqrbmnemi/12721343135.pdfIn PDF document text
- http://dfwarbitrator.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/637436522.pdfIn PDF document text
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a19b02f6c35c8acb7a658d627806ebab/jowewomolo.pdfIn PDF document text
- http://salinasouth.com/clients/11073/File/57384580234.pdfIn PDF document text
- http://cosmic-kino.ru/sadm_files/kaposirajuwas.pdfIn PDF document text
- https://www.kasekimi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160755d87325ba---keditijadiduxoresoju.pdfIn PDF document text
- http://pm-property.pl/userfiles/file/sisedesutu.pdfIn PDF document text
- http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a123a1826f8---tebafukasamax.pdfIn PDF document text
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/160c7bcdd2a5cf---fomajenupexop.pdfIn PDF document text
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16072d8c5ba3c8---60302764573.pdfIn PDF document text
- https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/504d41864ee9b74ccb8bb027d672acbe/wazesuviponupipanevedevo.pdfIn PDF document text
- http://legendtec-eg.com/wp-content/plugins/super-forms/uploads/php/files/1pf8uldtokoqsub4buubevf8c6/28082272872.pdfIn PDF document text
- https://www.deuba.info/wp-content/plugins/super-forms/uploads/php/files/18ojn9082r0sm6nmio3345j8bn/49767489166.pdfIn PDF document text
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a45562db15b---30932751066.pdfIn PDF document text
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7b228c6d29---61949384142.pdfIn PDF document text
- https://arte-salon.ru/upload_picture/35165654569.pdfIn PDF document text
- http://www.tekkoo.net/images/library/File/70230878096.pdfIn PDF document text
- http://byty-pardubice.eu/UserFiles/File/lidaku.pdfIn PDF document text
- http://k-souz.com/userfiles/file/tisumajazupizibi.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/04d6327e9d8e8b7ff6f3507ab2a756c1/45875773260.pdfIn PDF document text
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160acbf5daf4b5---xodigojegaxivimonodes.pdfIn PDF document text
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/7fe0eb32bfff49ef50855a61cc6a8b94/89872921126.pdfIn PDF document text
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/uj9ivm676j59l5hsl0udhq9t42/zawuwipuropo.pdfIn PDF document text
- http://budoprojekt.eu/obrazy/file/vabix.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_off0000c53a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC53A | 11032 bytes |
SHA-256: bee33eeb2bab4d2cac112a5779ce3b1758e08adae978dfe6f7ee0b1dcbd75bb0 |
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font_01_sfnt_off0000debe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEBE | 16504 bytes |
SHA-256: dfd4e984de4b4e3f6b719f34693fd822a58f08ebc5c4656f72a5cbb9cd95ce9e |
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font_02_sfnt_off00010970.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10970 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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