MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to redirect users. The ClamAV detection and heuristic firings strongly suggest this PDF is malicious, likely serving as a lure for phishing or malware distribution. No scripts were extracted, and the document body was unreadable, so the primary attack vector appears to be the embedded links.
Machine Learning
- Nyx PDF Classifier suspicious score 0.4280
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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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 http://free-note.kr/files/fckeditor/file/352726758612f5c09be66d.pdf In PDF document text
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/161454f0d09453---50547035396.pdfIn PDF document text
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/16143c1fe522f2---41823318003.pdfIn PDF document text
- https://elemonbg.com/Files/File/jibiw.pdfIn PDF document text
- http://studiotecnicoarduini.eu/userfiles/files/rofalivoposoralivamovu.pdfIn PDF document text
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613696e78fca8---pesowuluvirerowobesami.pdfIn PDF document text
- https://mklaassen.nl/images/file/zutavaritabibulapulovo.pdfIn PDF document text
- https://mma-montessori.com/admin/ckfinder/userfiles/files/dekodifizizubede.pdfIn PDF document text
- http://bouwbedrijfansing.nl/userfiles/file/49514059254.pdfIn PDF document text
- https://maxlinder.com/admin/assets/ckfinder/userfiles/files/voxataderub.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613b302a2222d---fizazurode.pdfIn PDF document text
- http://toitureetfacade.fr/data/Files/darijapusaterow.pdfIn PDF document text
- https://nilsahost.com/calisma2/files/uploads/zigizugusadesatori.pdfIn PDF document text
- https://imotrading.com/images/userfiles/37535180729.pdfIn PDF document text
- http://vhktn.at/images/content/files/bujiregedofevaxi.pdfIn PDF document text
- https://ceccargiurgiu.ro/userfiles/file/wupos.pdfIn PDF document text
- http://bularz-auto.pl/images/userfiles/file/webotawiwetugosozekedefut.pdfIn PDF document text
- http://pnktools-th.org/ckfinder/userfiles/files/40506367059.pdfIn PDF document text
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/f63ba70274a133a7af04c299b905f6a1/58508666319.pdfIn PDF document text
- http://manuale.aziendasulweb.it/userfiles/files/34184687467.pdfIn PDF document text
- https://annekienlen.fr/imagesfile/15686054558.pdfIn PDF document text
- http://gonzagafood.com/userfiles/files/7555856830.pdfIn PDF document text
- https://cope.lk/assets/media/file/68217629725.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=a+quite+place+online+watchPDF link annotation
- 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_off0000aeb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEB3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c6c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6C5 | 14664 bytes |
SHA-256: bfb9b3df251094627b21f3781c96c0cf06145669576753e23a01bb9b0b3a67eb |
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font_02_sfnt_off0000eb44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB44 | 10516 bytes |
SHA-256: 17a81495b1dcc47c977908694ca1791f521207a88ff55d29df2209812898ddd9 |
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