MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, indicating it's a phishing or trojan PDF. It functions as a link farm, containing numerous URLs that redirect to potentially compromised websites. The presence of multiple links on disposable hosting and the use of 'utm_term' parameters suggest an attempt to obscure the final destination and evade detection.
Machine Learning
- Nyx PDF Classifier malicious score 0.5690
Heuristics 5
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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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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://detskeihriska.eu/ckfinder/userfiles/files/dapivawe.pdf In PDF document text
- https://www.serwkom.pl/plugins/ckfinder/userfiles/files/puwutuwo.pdfIn PDF document text
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/161404dd9a1893---nudodexonulekogatenop.pdfIn PDF document text
- http://letresorellebio.it/userfiles/files/pevosewiro.pdfIn PDF document text
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/70f470dbac4fe215833161903ce578b1/50063202841.pdfIn PDF document text
- http://18554080.com/userfiles/file/5736611691.pdfIn PDF document text
- http://www.polni.si/Images/files/65545955085.pdfIn PDF document text
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/2dd7be552574b49e4a89010825788f6b/depipovodin.pdfIn PDF document text
- http://lex.tj/img/file/17054897207.pdfIn PDF document text
- https://samsungklimalar.com/upload/ckfinder/files/56189979531.pdfIn PDF document text
- http://mecateengenharia.com.br/ckfinder/userfiles/files/losaxerujuzaxadawuvozeg.pdfIn PDF document text
- http://vangphutai.com/images/uploads/files/wamumav.pdfIn PDF document text
- https://pfollowers.com/ci/userfiles/files/52852811242.pdfIn PDF document text
- https://aradmissions.com/ci/userfiles/files/2259265503.pdfIn PDF document text
- http://mlsite.gewoozee.tw/custom/file/51444244125.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/161416012112c4---sereroduba.pdfIn PDF document text
- http://architettosbaffo.com/userfiles/files/banomefidiwuvi.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/22722fd9e308ebc11f9801703cf467f2/guramokosepijenepi.pdfIn PDF document text
- http://parquet-cortes.fr/data/Files/90637587471.pdfIn PDF document text
- http://uptindia.com/newsimages/file///repodo.pdfIn PDF document text
- http://www.kotolantopeni.cz/files/jupolumivuwemukore.pdfIn PDF document text
- https://ispartaprefabrik.com/ckfinder/upload/files/92906620632.pdfIn PDF document text
- http://radis-rrl.ru/userfiles/image/tolefaguvunuretakijuwub.pdfIn PDF document text
- http://agrobud.net/uploaded/file/36132186678.pdfIn PDF document text
- http://miraesusan.com/ckupload/files/giragasarijep.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=android+tablet+backupPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bd1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD1F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d531.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD531 | 18508 bytes |
SHA-256: 95e67494ef47f1e142a3accc181cd830544ffe48acea3788220ea2b90be07abf |
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