MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm with numerous external URIs, many pointing to compromised WordPress sites. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a malicious intent, likely to lure users to phishing pages or download further malware. The presence of multiple distinct hosts and the use of 'utm_term' parameters indicate a coordinated effort to distribute malicious content.
Machine Learning
- Nyx PDF Classifier clean score 0.2199
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://chcial.ru/uplcv?utm_term=why+nations+fail+in+pdf PDF link annotation
- https://fpcofmacon.com/nbloom/fckuploads/file/98111723458.pdfIn PDF document text
- https://strechybenesov.cz/content/zemadolaforegeralabuxiduw.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614165c9c2a7b---kuwon.pdfIn PDF document text
- http://topflexsports.com/uploads/46717860183.pdfIn PDF document text
- http://vinabomi.com/uploads/userfiles/file/70185346946.pdfIn PDF document text
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614307564276a---28297304047.pdfIn PDF document text
- http://uekekb.ru/!upload/files/35400350608.pdfIn PDF document text
- https://www.spitalmoldovanoua.ro/ckfinder/userfiles/files/nadapinuxoxixe.pdfIn PDF document text
- https://psystat.net/candyticket/uploads/page_images/files/96826022361.pdfIn PDF document text
- http://color-gateway.com/userfiles/file/farolatojakogopa.pdfIn PDF document text
- https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/39678428209.pdfIn PDF document text
- http://yuanjiangchem.com/upload/files/sejos.pdfIn PDF document text
- https://morganmethod.tuesdaytrader.com/ci/userfiles/files/70839687398.pdfIn PDF document text
- http://www.vikingmaterials.com/img/82646982940.pdfIn PDF document text
- http://blevy.com/ckfinder/userfiles/files/xodafajoxa.pdfIn PDF document text
- http://jainfarms.com/uploads/ruroropupupegizuseki.pdfIn PDF document text
- https://sdudyogtechnologies.in/ckfinder/userfiles/files/puwojovokalowuz.pdfIn PDF document text
- http://trungtamdaykem.vn/Images_upload/files/63456529825.pdfIn PDF document text
- http://balcimimarlik.com/resimler/files/xevibumapibukirivegewe.pdfIn PDF document text
- http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/niserimedugabiniluwolujon.pdfIn PDF document text
- https://sokolzgierz.pl/web/uploads/files/77718174260.pdfIn PDF document text
- http://daglichtfilters.nl/ckfinder/userfiles/files/67195312161.pdfIn PDF document text
- https://jazykovytabor.topenglish.sk/app/webroot/gallery/files/39934050084.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161332b1a483c1---narizisagas.pdfIn PDF document text
- http://eva.am/files/2e4a42481618f425.pdfIn PDF document text
- 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_off00017553.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17553 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00018d6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18D6A | 10468 bytes |
SHA-256: 6c898017988c3101aae811efb522f979085f76a5faaf07eb9f1d0afd92694326 |
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