MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the nature of the link farm suggests an attempt to deliver a second-stage payload or phish for credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://www.elmundodelapiscina.com/ckfinder/userfiles/files/toxewaxiw.pdf In PDF document text
- http://envisystem.com/upload/userfile/files/fumunij.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d0abff531cb---12402952345.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b735071f668---nikimoli.pdfIn PDF document text
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/1bb25854586a68f2c7c5e200c45d4ec9/gobizidaga.pdfIn PDF document text
- http://elektro-galerie-hamburg.de/userfiles/file/89780658127.pdfIn PDF document text
- https://j26clean.com/upload/files/85243007920.pdfIn PDF document text
- http://binhchuachay.info/Images_upload/files/ninipov.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1607692874772e---56261221509.pdfIn PDF document text
- https://ou-ravda.com/ckfinder/userfiles/files/dotetataluvazaxapunonome.pdfIn PDF document text
- http://tecsun-moscow.ru/docs/file/22382558616.pdfIn PDF document text
- https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/6231568ae3dbb0f57e9b53c0709256dc/92014405695.pdfIn PDF document text
- http://skkl.cn/filespath/files/20210815015839.pdfIn PDF document text
- http://giaodantanthaison.com/Images_upload/files/wenolakefupajudazamusufi.pdfIn PDF document text
- http://thebestpearsonfamily.com/clients/e/e6/e6a49a9b6fa3fb0349b1957bd02e8b5b/File/sifomekikuwumutufef.pdfIn PDF document text
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608be1269a781---mokorulikonikozili.pdfIn PDF document text
- http://associatedreclaimed.com/userfiles/files/88822207972.pdfIn PDF document text
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/p2mun1uen63p22t23k5g5kk45m/tarusif.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160766673de509---88892249299.pdfIn PDF document text
- https://altonika.pro/files/fck/file/54922982993.pdfIn PDF document text
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/507f04ed0f7f1508fb8d1dda3b51c358/vorewawisodexovuma.pdfIn PDF document text
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/914e9b68444554ce7967a8e1d36ef838/65034913901.pdfIn PDF document text
- https://cornwallstaffagency.com/userfiles/file/65190716466.pdfIn PDF document text
- http://gioiacompany.net/images/upload/file/13219879741.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=addition+and+subtraction+with+regroupingPDF 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_off0000db33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB33 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f34a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF34A | 11052 bytes |
SHA-256: a37d63890650566b61a1e6500d987c92f711ca413277567b02670617199ef4e5 |
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font_02_sfnt_off00010cad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CAD | 17192 bytes |
SHA-256: 07b16ca38726357c0208941220b96dab3b59911a5699e86ba0e9ee919feb0fbd |
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