MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to other PDF files hosted on various domains, suggesting a link farm or distribution mechanism. The presence of compromised CMS upload links further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://dragonexpressml.com/userfiles/files/pefapajegopurakekim.pdf In PDF document text
- https://relaxbotanika.cz/ckfinder/userfiles/files/2952804342.pdfIn PDF document text
- http://eggtesting.com/admin/uploads/file/tuxozikimu.pdfIn PDF document text
- https://amigo-shop.105h.net/upload/files/80556167906.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613946cc12105---mogonogutosov.pdfIn PDF document text
- http://congseng.com/uploadfile/files/56272565927.pdfIn PDF document text
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613387ffa2f1d---33386663414.pdfIn PDF document text
- https://arbormaster.net/uploads/files/suvofekakogola.pdfIn PDF document text
- http://halongbaycruises.org/upload/files/zevikuwolexivexomivigabuw.pdfIn PDF document text
- http://trustycctv.com/ckfinder/userfiles/files/7390730284.pdfIn PDF document text
- http://beachfirebrands.com/userfiles/file/damuxesip.pdfIn PDF document text
- http://saraya-shop.ru/upload/files/gebaduzapofitakes.pdfIn PDF document text
- https://mimpiindah168.com/contents/files/fipidajofobugujivubuvamu.pdfIn PDF document text
- https://shellserva.nl/docs/Image/file/pojakesakakonalexi.pdfIn PDF document text
- http://fpole.ru/sadm_files/82112920206.pdfIn PDF document text
- http://bookblog.kr/data/file/files/mijeramoxepe.pdfIn PDF document text
- http://firsttimehomebuyerstudy.com/images/file/9921237957.pdfIn PDF document text
- http://mmbc.cz/_data/user_files/file/zapurajutonalezuruze.pdfIn PDF document text
- http://magnumprint.ru/upload/files/rixewigikodagosuxemaleda.pdfIn PDF document text
- http://hidramaco.com/files/files/zigibimaseropozasarete.pdfIn PDF document text
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/fd0ea0cb7df54fff2a7b22a2de07b8c1/lukido.pdfIn PDF document text
- http://cocoal.com/uploads/file/nefumos.pdfIn PDF document text
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16130fa2b84830---61344372325.pdfIn PDF document text
- http://songhandiban.com/uploadfile/file/2021091318004673499.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=star+wars+tower+defense+androidPDF 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_off0000e095.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE095 | 16556 bytes |
SHA-256: e3a507994a7a354e484a0bc24701f8202f36c6e36a4ecc606cfc2c782ff1d2d8 |
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font_01_sfnt_off00010b7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B7D | 10464 bytes |
SHA-256: 9b60e99c5613a02180bd391d69c4da82f100ab051a16e9088b285d339f9cc5d6 |
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font_02_sfnt_off0001236a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1236A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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