MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites acting as link farms. The ClamAV detection and the nature of the URLs suggest this is a phishing or malware distribution attempt, likely delivered as a spearphishing attachment. The embedded JavaScript is likely used to facilitate the redirection or exploit vulnerabilities.
Machine Learning
- Nyx PDF Classifier suspicious score 0.3855
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/91a53d364e79f9e86a40e837742eb67b/pakotavodigewubegonulo.pdf
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/f8f07cfdc20e248179a6939cb947cb93/72687275035.pdf
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a926357320c---76999494270.pdf
- http://slp72.com/clients/7/7b/7b902bee17765b19ebdde6030f24742d/File/50235698527.pdf
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b163f750397---29865011907.pdf
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/9iue0tljv3e79l3mcssajek0eb/bupomivuweben.pdf
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/3fuhdjmiglt60j81aommltjpg6/78019531176.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fafad0dd15---12965128951.pdf
- http://michardardillier.com/ckfinder/userfiles/files/semefenifefunuwakus.pdf
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3e43d37f52---logulax.pdf
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/ef7d300873b4263012b7f31295f12460/baruzeraworuzugetejapat.pdf
- http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/41306172623.pdf
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a464cc2e38b---91170808714.pdf
- http://bunny888.com/ckfinder/userfiles/files/96323033099.pdf
- http://www2.grupoksl.com.br/js/ckfinder/userfiles/files/labebonisolifusal.pdf
- http://jkbprivateiti.com/userfiles/file/18870213717.pdf
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/9b311ff1af1c29103b777602b379f019/57330952347.pdf
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/cjah7tkq9bqcpsro497hjigi45/bomomeparasuselanepulopa.pdf
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/1608011761b9ee---xozotutesuxabonije.pdf
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/jknh98tovlvs08f5p6hora9gk1/60755294584.pdf
- http://mdbim.pl/ubezpiecz/obrazy/file/valapejerebemidurejubedax.pdf
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160d6914450a8f---xedufisuzogezafu.pdf
- https://prokoncept.hu/admin/blogfck/image/file/kajawabagulopusurikugab.pdf
- https://baigiangtoanhoc.com/upload/files/nutasaxixerikovidesuku.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=ltcc+technology+pdf
- 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_off0000be79.bin67c08d371a56691613fbf4b2bb7b55adceea6067d6510cf025d1227f258f45f9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE79 | 10448 bytes |
font_01_sfnt_off0000d5e8.bincc77b78050f2f518bca25d2f54d3a1ab1ba095165c6c12b8a33bc7acc0dd8838 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5E8 | 16508 bytes |
font_02_sfnt_off0000ffd5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFD5 | 16792 bytes |
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