MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The embedded URLs and the heuristic firings strongly indicate an attempt to lure users to external, potentially harmful, websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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 http://cgl.lu/userfiles/files/98259720559.pdf In PDF document text
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/3c2b626d739ddda6e0a7a5536068580a/pulokupi.pdfIn PDF document text
- https://loonbedrijfschimmel.nl/userfiles/files/16955320546.pdfIn PDF document text
- http://mega-gold.com/userfiles/files/87664923698.pdfIn PDF document text
- http://www.mmalappeenranta.com/tiedostot/files/34362003901.pdfIn PDF document text
- http://mu-rrrc.com/userfiles/file/satewisujukiveferexizepu.pdfIn PDF document text
- https://profession-your-dr.com/uploads/files/202109080358009499.pdfIn PDF document text
- https://doctmcooper.com/userfiles/files/dedafazidesavodimujerudo.pdfIn PDF document text
- http://www.superior-inkjet.com/login/ckfinder/userfiles/files/69586889948.pdfIn PDF document text
- http://pkpneu.cz/userfiles/file/10483376432.pdfIn PDF document text
- http://klubbelgickychobrov.sk/editor_uploads/files/33190155162.pdfIn PDF document text
- http://juditphotography.com/picture/userfiles/file/vetesopova.pdfIn PDF document text
- https://chingchia.com/uploads/files/202109080406527046.pdfIn PDF document text
- http://templeton.sk/userfiles/file/nomagevasamibifuvewed.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/5el2k56cn354chbubmgerkkg4m/nujorutugenazadibufu.pdfIn PDF document text
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613b29216986f---jibowakomedemudajuj.pdfIn PDF document text
- http://vina2002.com/uploads/files/9180481134.pdfIn PDF document text
- https://matagujrischool.com/admin/imagetemp1/file/90491434856.pdfIn PDF document text
- http://studiopol.it/userfiles/files/renivotezu.pdfIn PDF document text
- https://csn-alliance.com/data/files/61992649843.pdfIn PDF document text
- https://lanna-flyingclub.com/ckfinder/userfiles/files/22086145034.pdfIn PDF document text
- http://www.europesolidaire.eu/userfiles/files/wuzebuxekoxuta.pdfIn PDF document text
- http://jiin-torng.com/uploadfiles/20210905044612.pdfIn PDF document text
- https://hahapediatric.com/uploads/files/202109060800225159.pdfIn PDF document text
- https://larrialdiak.es/files/galeria/files/76469098521.pdfIn PDF document text
- http://ausafe.net/images/art/files/6928230661.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=video+editing+software+free+for+windows+7+32+bitPDF 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_off0000eee4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEE4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000106fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106FB | 11020 bytes |
SHA-256: 77fc9778ceb1c8fb93d32161ae53af78495adb9493b8e3e946f96aab87e6fd59 |
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font_02_sfnt_off000120be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120BE | 17540 bytes |
SHA-256: 06633328718c0c776f237f97c31c347e84c5e89502430436e80eb105a0c62ba4 |
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