MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to compromised CMS uploads or are hosted on disposable domains, indicating a link farm designed to distribute malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent. No scripts were extracted, and the document body was unreadable binary data.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 5
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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://becucci.it/userfiles/files/14482566748.pdf In PDF document text
- http://bsl-trans.ru/admin/ckfinder/userfiles/files/goler.pdfIn PDF document text
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c85d9047d8---jevodidefov.pdfIn PDF document text
- http://belgium-ex.com/3180999241.pdfIn PDF document text
- https://theatresaucinema.fr/uploads/file/98261227113.pdfIn PDF document text
- http://asupuro.com/user_data/image//file/ruzaxijeterolejobaki.pdfIn PDF document text
- http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080141c0cee5---susonixogetezugakibuvit.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16098ee4645d83---jujoxazerosepuzapupasoma.pdfIn PDF document text
- https://gulfcans.com/home/madarmun/public_html/gulfcans/images/bulk_images/files/nusaweguse.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/m21jjb2heajmn5ahht69u544io/fogevotogurasalolan.pdfIn PDF document text
- http://bahattinburyan.com/userfiles/file/2234883849.pdfIn PDF document text
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/160830382779cb---pewoz.pdfIn PDF document text
- http://yanarfabrics.com/firma/files/gajiletusofimapejobaxu.pdfIn PDF document text
- https://sherwoodchamber.org/ckfinder/userfiles/files/43138727691.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a74a576d591---35457611988.pdfIn PDF document text
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080a6092b4ce---90526450253.pdfIn PDF document text
- http://aksaaydinlatma.com/img/editor/image/file/49861068517.pdfIn PDF document text
- http://nsk-nalogov.net/upload/files/kimezizipezakezisijifidi.pdfIn PDF document text
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ce99f114175---25412149364.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/7aqap67dbfgu5e5vqj0erkkk35/kazenigifunipovivamon.pdfIn PDF document text
- https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/5dc00394cf334a0b128790a4e246b2ea/zariwomomebifirifawolali.pdfIn PDF document text
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/2d927275fe00a7d5dbc77a477c72282c/41272712703.pdfIn PDF document text
- http://okfilm.kr/userData/board/file/95738376861.pdfIn PDF document text
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca882169f6---judadena.pdfIn PDF document text
- https://geniodelweb.com/file/86068860723.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=contabilidad+de+costos+estandar+ejercicios+resueltosPDF 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_off0000c5ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5ED | 10764 bytes |
SHA-256: 374feb3641eb1b32ff33f8614bb564fc7677849a07308787e6b8ec57308bd597 |
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font_01_sfnt_off0000decc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDECC | 16792 bytes |
SHA-256: af0ef7de07f80f26555cd3e8e24810ade38a97f62d9cc9ab3ab9b5cf896011a2 |
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font_02_sfnt_off00010983.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10983 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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