MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links pointing to other PDF files hosted on various domains, indicating a link farm designed to obscure the final destination. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest a malicious intent, likely for phishing or distributing further malware. The ML classifier and ClamAV detection further support the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://vncdata.net/app/webroot/uploads/files/98656087508.pdf In PDF document text
- http://matrixpaint.com/ckfinder/userfiles/files/givekivonojukop.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16144e33877ba8---kolosuledulekumogit.pdfIn PDF document text
- http://studiomanzetti.it/userfiles/files/vurafusewirigamuf.pdfIn PDF document text
- https://tradingcall.in/ckfinder/userfiles/files/wafeseginafojogitipububex.pdfIn PDF document text
- http://goodfortune.hk/UpLoadFile/file///21282513447.pdfIn PDF document text
- https://mklaassen.nl/images/file/26388608760.pdfIn PDF document text
- https://stancijanegrin.com/userfiles/file/kuxumojar.pdfIn PDF document text
- https://serka.com/serka/upload/files/tosekomezuwiruro.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/161348ba53b0c3---9194646249.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/83dvkmbt58phbna2eb1i7ij9a4/kijijawuxu.pdfIn PDF document text
- http://siamsnail.com/media/userfiles/files/leworolupozufifunakup.pdfIn PDF document text
- http://www.anjhimayath.com/upload/file/gifakexivigunoni.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614beda0c4f6f---zapobonusurimilevodamowus.pdfIn PDF document text
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/b6e19ad4db44238de4b2787880e4c7c3/18050729521.pdfIn PDF document text
- http://tecs4.com/intranet/ckfinder/userfiles/files/dinuditewupotugexa.pdfIn PDF document text
- http://ozdoby-betonowe21.pl/Upload/file/24015426814.pdfIn PDF document text
- https://aawyx.com/sites/default/imageuser/file/64594620306.pdfIn PDF document text
- http://partnerplus30.ru/images/fornews/files/90213551607.pdfIn PDF document text
- http://futsalcb.cz/picture/vtextu/file/joxagivofap.pdfIn PDF document text
- http://www.facyt.com.ar/ckfinder/userfiles/files/fodaja.pdfIn PDF document text
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135e7c86c01a---40335639158.pdfIn PDF document text
- http://tai-group.com/upload/files/94624008886.pdfIn PDF document text
- http://saint-party.com/media/file/6074651285.pdfIn PDF document text
- http://www.reeder.ee/files/filemanager/tezukubumokifedi.pdfIn PDF document text
- https://www.tristar-technology.com/ckfinder/userfiles/files/92966349638.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=media+sound+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_off0000b820.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB820 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d032.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD032 | 18900 bytes |
SHA-256: d2bfabea5447c4ea231a2ec4fe9a4ef4f8c8c1b2b99348a83c048dcbc566b6e3 |
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font_02_sfnt_off00010181.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10181 | 10192 bytes |
SHA-256: fd8241aec21e77af66c9d60b716155549a7cfa9097d182889a02f3af38fc409e |
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