MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF was flagged by multiple heuristics and a machine learning classifier as malicious. It contains numerous links pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The ClamAV detection confirms its malicious nature, likely as a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.8257
Heuristics 5
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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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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://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160feb90169a00---3424365920.pdf In PDF document text
- http://zulassung4you.de/bilder/file/44626176547.pdfIn PDF document text
- https://nestaerospace.com/uploads/file/saduj.pdfIn PDF document text
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/84df682433856bda1f9fb1fa5688f9c9/88699093498.pdfIn PDF document text
- https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/bb489b084d4300fbdd500cf170023001/79328054737.pdfIn PDF document text
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/160706f38424ce---47218250073.pdfIn PDF document text
- http://mwflower.com/upimagesfile///47005399474.pdfIn PDF document text
- https://vigiweb.cl/dinamicos/files/file/jarupofadonuginav.pdfIn PDF document text
- http://tomaszfilipczak.pl/userfiles/file/gotiduwago.pdfIn PDF document text
- http://jubileejec.com/userfiles/files/nutaxanogi.pdfIn PDF document text
- http://antonioruizabogados.es/userfiles/file/77705360147.pdfIn PDF document text
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133deab9e948---fosotunujabog.pdfIn PDF document text
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/g335tak3ac0ijuhok57sr0ab0n/soxejazakurazil.pdfIn PDF document text
- http://beijingbeat.com/contents//files/25566465939.pdfIn PDF document text
- https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/5471c0780d140bbaf783dcbc21c6636d/dupowopiba.pdfIn PDF document text
- https://foundryindia.org/userfiles/file/jufanitubelib.pdfIn PDF document text
- http://hnkingdee.cn/Files/file/20218513611.pdfIn PDF document text
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160838ab732d74---nakovebabujipaliwenigoma.pdfIn PDF document text
- https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/d65e1cr4ibi9qd80rieashc8in/lobolixufirutu.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e813e835892---6277967057.pdfIn PDF document text
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090c952b36a8---govelovelelup.pdfIn PDF document text
- http://woori-tour.kr/FileData/ckfinder/files/20210726_9FE0FC950B7FD1EA.pdfIn PDF document text
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/fe5f6959e6771272b494b2ff102fa018/40568211742.pdfIn PDF document text
- http://womenwhorockarkansas.com/clients/4/4c/4cfcdabbb7b8ad81bafe9a4295858145/File/56785980864.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=designing+data+intensive+applications+martin+kleppmann+pdf+downloadPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c213.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC213 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000da25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA25 | 17480 bytes |
SHA-256: e09a4e54515ee4f159ad74f26cd9da730125b590ff5deb9076518260b7c8ee46 |
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