MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The ML classifier strongly indicates maliciousness, supported by heuristics identifying a link farm pointing to potentially compromised CMS upload storage. The presence of a 'download button' lure further suggests a social engineering attempt to trick the user into downloading a payload. The document body is heavily obfuscated and unreadable, providing no direct clues to its intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://slabowidzacy.smprzemysl.pl/ckfinder/userfiles/files/jonisimise.pdf In PDF document text
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/20f69c87aaae225c361b815fd8a6226f/18022219206.pdfIn PDF document text
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160824352c3c3d---51412266808.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/jabaxufoxojemitemelole.pdfIn PDF document text
- https://advance-pack.com/editor_upload/file/wixemasezuwupika.pdfIn PDF document text
- http://captainkillmite.com/uploads/files/202108171712333128.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/nfpitcujmm92j0p74obo2om9n2/47079766809.pdfIn PDF document text
- http://www.moyekolodin.com/files/36343759866.pdfIn PDF document text
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acf6ef04d0b---73658691974.pdfIn PDF document text
- https://fiberglasssupplydepot.com/userfiles/file/46718468005.pdfIn PDF document text
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160850b8da877a---49493743282.pdfIn PDF document text
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16085c39eb2288---denuv.pdfIn PDF document text
- http://esejsc.com/upload/files/35658846587.pdfIn PDF document text
- https://rkdestate.com/userfiles/file/gidapewokepewufez.pdfIn PDF document text
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/2a09b7b534d109627c874b41d6df95da/58646922747.pdfIn PDF document text
- http://ytovietnam.net/ckfinder/userfiles/files/24838939970.pdfIn PDF document text
- http://sonkertrail.org/clients/9/92/9260a3c387aed4615f72c72c3a1da295/File/67105878767.pdfIn PDF document text
- http://royalwedding.jp/images/blog/file/bolaz.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606c98160e69b---totifeso.pdfIn PDF document text
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/7e2nannjukq1t8cdmsntccteq1/tufogiw.pdfIn PDF document text
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/81da61c6f28c300b67d666c1dc689b85/wuwivujuz.pdfIn PDF document text
- http://morecoredesign.com/images/imageUps/files/65510135340.pdfIn PDF document text
- http://aite-materials.com/upfiles/file/vawomatovi.pdfIn PDF document text
- http://turagent007.ru/userfiles/file/kiresinakoke.pdfIn PDF document text
- http://pcmcpropertyblog.com/wp-content/plugins/super-forms/uploads/php/files/d223c4063736b92e8f9c93b443d890b7/xorefanajog.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=converter+word+para+pdf+online+gratis+em+portuguesPDF 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_off0000c66a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC66A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000de7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE7C | 16760 bytes |
SHA-256: a0a6ed97e42122603894dfb8349bb286d5c26d54e1f045cc3bd33bc6d11c7612 |
|||
font_02_sfnt_off000109ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109AE | 11124 bytes |
SHA-256: 9041c924b9ce9f3cf767943cb2a3ed0fdb23a95cc747b2d203bc51f42b428239 |
|||
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