MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ML classifiers and ClamAV, with a critical heuristic firing for PDF_SEO_DISPOSABLE_LINK_FARM. The embedded JavaScript stream (PDF_JS) likely facilitates the redirection to numerous external URLs, many of which are hosted on disposable domains, indicating a phishing or malware distribution attempt. The presence of embedded JavaScript strongly suggests an attempt to execute code within the PDF viewer.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://fmafirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/buvus.pdf In PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/aq1igcrcjojvmkhvbol5uqadvr/36133161816.pdfIn PDF document text
- http://dycelife.com/userfiles/file/92697652187.pdfIn PDF document text
- http://constantemail.com/userfiles/file/163082406848231181017.pdfIn PDF document text
- http://gdgom.com/upload/file/2109011430319773640z0cabhj8d80.pdfIn PDF document text
- http://palestraarkadia.it/userfiles/files/jovolotupuwenukatulemivo.pdfIn PDF document text
- https://cargotavio.ru/files/file/7302992141.pdfIn PDF document text
- http://czytamzezrozumieniem.pl/userfiles/file/lonifisisaba.pdfIn PDF document text
- http://bukhatirhomes.com/userfiles/file/moberiboxoxodugopafe.pdfIn PDF document text
- http://nfraccon.org/userfiles/file/210437795.pdfIn PDF document text
- http://cudicio.it/images/file/sowupenarutukitirepodewap.pdfIn PDF document text
- http://teamtrinity.net/trinitya/file/vufekepok.pdfIn PDF document text
- http://speed-r.com/js/upload/files/96428613477.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/9a8f4e3b008e25bd4d81176682b983ea/47302396535.pdfIn PDF document text
- http://scbczy.cn/up_files/file/20210907_022722.pdfIn PDF document text
- http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/suxiweje.pdfIn PDF document text
- http://www.web-globus.de/ckfinder/userfiles/files/pituximisasijokekobesopuk.pdfIn PDF document text
- https://sibconsulting.com/contents/files/87739302016.pdfIn PDF document text
- http://bbpcosmetics.com/admin/upFiles/2021-9/file/1567004826.pdfIn PDF document text
- https://jhservice.net/imagenes/galeria/files/79450174695.pdfIn PDF document text
- http://aquitaine.annuaire-regional.com/ckfinder/userfiles/files/sosoditolasituzil.pdfIn PDF document text
- https://maffart-guy.com/userfiles/file/nemeximiwopokor.pdfIn PDF document text
- https://edu-mate.kr/_UploadFile/Images/file/wiwulonon.pdfIn PDF document text
- http://mamolenasnc.it/userfiles/files/70725793105.pdfIn PDF document text
- https://www.funes.gob.ar/ckfinder/userfiles/files/96763208588.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=france+ligue+1+2019PDF 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_off0000b790.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB790 | 10560 bytes |
SHA-256: 1bc84731e07b1760633b90aa8e150fac18957eaa1500e938f4fe45bb43cd2e95 |
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font_01_sfnt_off0000cfca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFCA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e7dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7DC | 17880 bytes |
SHA-256: 0e63610e63388d899728f3795a3af879293ec93705703c54a61a18c0e953f49b |
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