MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs and links to compromised websites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely delivered via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 https://medvor.ru/uplcv?utm_term=android+core+prime PDF link annotation
- http://tce.vn/imagesflashupload/file/wusudemew.pdfIn PDF document text
- https://karlholmbygg.se/UserFiles/files/tudavupir.pdfIn PDF document text
- http://vip-cond.ru/userfiles/file/kovuvij.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/161326dcb9770f---34351461025.pdfIn PDF document text
- https://fundreamz.com/ckfinder/userfiles/files/pamuxiniledipur.pdfIn PDF document text
- http://halongbaycruises.org/upload/files/simaduletufepajurumavukor.pdfIn PDF document text
- http://ceresasrl.it/userfiles/files/56045960165.pdfIn PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/493fcc52e340c346f7c3f9de703f6264/1977287519.pdfIn PDF document text
- http://plenaseguroseprevidencia.com/fotosempresa/files/78185165347.pdfIn PDF document text
- http://rococosofa.com/files/files/sopolanawajosot.pdfIn PDF document text
- https://olympicwroclaw.pl/zdjecia/fck/file/96596742973.pdfIn PDF document text
- http://importfoodfair.com/userfiles/image/2021/09/file/fasikomonimosasugirit.pdfIn PDF document text
- https://shturnev.com/files/foFKED/file/bobopasofezejitepele.pdfIn PDF document text
- https://ilonew.tasksplan.com/userfiles/files/9318479223.pdfIn PDF document text
- http://rheumatology.institute/upload/content/file/vafojogin.pdfIn PDF document text
- https://iieng.org/editor/ckfinder/userfiles/files/88761707561.pdfIn PDF document text
- https://charterfori.ir/basefile/charterforiir/files/gagufasivitotanotomel.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161374037c354e---66707124747.pdfIn PDF document text
- http://blueleaves.ru/userfiles/file/51190148965.pdfIn PDF document text
- http://parfumerieindex.nl/images/uploads/81048645350.pdfIn PDF document text
- https://chambres-a-la-ferme-plouzelambre.fr/userfiles/file/41514135396.pdfIn PDF document text
- http://zamel2.pl/userfiles/file/ponulivajefexamasivetata.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_off0000b598.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB598 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cdaf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDAF | 10184 bytes |
SHA-256: 8205bf87782277c272950254465d4d7c776eb048403ba7b67627204915d5a73f |
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font_02_sfnt_off0000e45c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE45C | 19740 bytes |
SHA-256: 3b9822b27323e0bf724c84f9f0aeb361cb5f900bcff4ce011f00c0484c739905 |
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