MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as 'Pdf.Phishing.Trojan' and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with many URLs pointing to potentially compromised websites or disposable hosting, suggesting a phishing or SEO poisoning attack. The document body was unreadable, but the presence of numerous external links and the overall structure strongly indicate a malicious intent to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://anhbanglaw.com/userfiles/file/57140359668.pdf In PDF document text
- http://thanuyentea.com/ckfinder/userfiles/files/kulazisovafepoji.pdfIn PDF document text
- http://ajk-opakowania.eu/upload/fck/file/vizuxozabetodob.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/8edc3783b014fd80468a787de903109d/74841317203.pdfIn PDF document text
- https://ruxthai-guesthouse-chiangmai.com/ckfinder/userfiles/files/24705332520.pdfIn PDF document text
- http://mahkotacare.com/tmr/userfiles/files/68899299094.pdfIn PDF document text
- http://gesundezellen.de/neu/userfiles/file/fejexezawibapiza.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/4468335437.pdfIn PDF document text
- http://busangh.com/attfile/fckimg/file///20210720184656_863329173.pdfIn PDF document text
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfa3a5841c---katiniw.pdfIn PDF document text
- https://vestol.bg/files/file/daweri.pdfIn PDF document text
- https://parklanehotel.asia/userfiles/file/78156639902.pdfIn PDF document text
- https://www.eoluk.com/wp-content/plugins/super-forms/uploads/php/files/056f74nns3j4g1j4n8btpbeahr/49824109836.pdfIn PDF document text
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c6f22915c4---27298348113.pdfIn PDF document text
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e49322644df---39212435447.pdfIn PDF document text
- https://elektrona.cz/files/file/22583117497.pdfIn PDF document text
- http://digifast.cz/userfiles/87016446020.pdfIn PDF document text
- http://juentai.com/userfiles/files/vubibim.pdfIn PDF document text
- http://kolesnikov.pro/ckfinder/userfiles/files/dufixalegusebozosa.pdfIn PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160735602ebcbf---4993657813.pdfIn PDF document text
- http://www.musicboxpiano.com/contentfiles/43669534462.pdfIn PDF document text
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/4c804bebbfa55eb01bf9395beb4b6110/bosoferamesopokolobipi.pdfIn PDF document text
- http://stellarvvv.ru/ckfinder/userfiles/files/12487226000.pdfIn PDF document text
- http://nadiadsa.org/userfiles/file/zakebesememaxiwokodural.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=coreldraw+graphics+suite+x6+free+download+full+version+with+crackPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ff06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF06 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001171d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1171D | 11544 bytes |
SHA-256: f4656bbe8b33b75e8714d76ec4dd84d60e2e087b60ad1a91567b475bf135a4f6 |
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font_02_sfnt_off00013261.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13261 | 21548 bytes |
SHA-256: 464fd4848a16751bb746188c6fbeab311cc289cadf944b6f039bd1713abccad9 |
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font_03_sfnt_off000169aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x169AA | 2640 bytes |
SHA-256: 5f125c68077b23685eb6e2bda4d666969c1d47bd48e0dbc29202517ec675116a |
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