MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to other PDFs hosted on compromised websites. This suggests a phishing or malware distribution campaign where the initial PDF serves as a lure to redirect users to further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9888
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/19h4ef126sovjknrkfkbb9msbb/30999123372.pdf
- http://rebornfair.com/FileData/ckfinder/files/20210609_6F80F2D9770E2C4D.pdf
- https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/15cee27c9a006b71a8a681abfcdb2ce4/93780267983.pdf
- https://ccskin.com/geektic/files/ziboxototupetogagowobidi.pdf
- http://meruzhankhachatryan.com/app/webroot/files/file/22052176846.pdf
- http://kawoka.com/userfiles/file/todukorovifaleb.pdf
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160751bf19d84f---zamoxet.pdf
- https://bancodevida.com/bancodevida/admin/images/image/file/97956841041.pdf
- https://yodishit.com/uploads/userfiles/file/malumekesezireboxub.pdf
- http://cabini.it/userfiles/files/jiburunutenewobif.pdf
- http://forumcutuca.com/ckfinder/userfiles/files/xawiruzu.pdf
- http://bakoca.hu/files/file/18509500847.pdf
- http://zangerlelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/44143595065.pdf
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/16082d1c25cc92---43232149970.pdf
- https://gulceoyunlar.com/calisma2/files/uploads/fafurapokuno.pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160967fdfdaf25---vipanowalelo.pdf
- https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/6fde99c74fe01f1dc5af18178072a76f/7997864919.pdf
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/f2a159a216e4c0771348c1a526952bed/66690151340.pdf
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8f38b0674---tezubeduterupujute.pdf
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1e2ce7f044---19759643100.pdf
- http://rockpapersun.com/upload_mce_image/file/xijalivorigajuwawofuwonir.pdf
- https://nationalshield-uae.com/userfiles/files/vuvabekowe.pdf
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/f932d59cb27200946832d1c898bf7c45/duzipavigakisosoxume.pdf
- https://www.tri-or.fr/tri-or/ckfinder/userfilesfiles/vufudosubirasumalisala.pdf
- https://promptcorporate.com/ckeditor/ckfinder/userfiles/files/ruwevatenaleluti.pdf
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609d5a85a127c---31899518900.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=sociolinguistic+competence+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011667.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11667 | 16792 bytes |
font_01_sfnt_off00012e7e.bin256a321b21971bf45ad5c4446670dff5c32fde5f8ef868c180877e4dc0511668 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E7E | 10876 bytes |
font_02_sfnt_off0001475d.binde280e34730b7f0bffe54c26948a2055927dd7c4d14637e331bb0bbaa9e60254 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1475D | 18000 bytes |
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