MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links to external websites, many of which are hosted on compromised CMS uploads, indicating a link farm designed to redirect users to malicious content. ClamAV detected this file as 'Pdf.Phishing.Trojan', further supporting its malicious nature. The presence of embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggest an attempt to obscure the final malicious destination through a series of redirects.
Machine Learning
- Nyx PDF Classifier suspicious score 0.4151
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 https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607440584ef6a---julabumemub.pdf In PDF document text
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a1764ee468f---72807740542.pdfIn PDF document text
- http://studiosantese.eu/userfiles/files/kotod.pdfIn PDF document text
- http://huntland.hu/upload/file/japawu.pdfIn PDF document text
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16087a0ad52e40---pelefagiwupak.pdfIn PDF document text
- https://cafemocion.com/userfiles/file/mimitavoxoxoluzimezipozok.pdfIn PDF document text
- http://22743333.com/userfiles/files/41021413017.pdfIn PDF document text
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160afa92354800---77254508549.pdfIn PDF document text
- http://unnatiwelfareorganization.com/ckfinder/userfiles/files/nabonivizuvazev.pdfIn PDF document text
- http://ciaooo.ru/uploades/userfiles/file/rutizixokojitosokuj.pdfIn PDF document text
- http://abnicum.com/files/file/19245945143.pdfIn PDF document text
- http://magogaralbamoble.com/galeria/files/38412947285.pdfIn PDF document text
- https://doellefjelde-mussemarked.dk/images/newsmail/file/24201710420.pdfIn PDF document text
- https://gagiongvitgiong.com/ckfinder/userfiles/files/96930000412.pdfIn PDF document text
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160806e4d5a22c---89861646638.pdfIn PDF document text
- http://locthanhwindow.com/img_duhoc/files/tezujuzapiferu.pdfIn PDF document text
- http://travelport.pl/userfiles//file/13665697437.pdfIn PDF document text
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5b09c62486---11289151588.pdfIn PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9abad3bcc1---816336389.pdfIn PDF document text
- https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/dbbb769557e7da43c03e3d4765ebb3f1/sagupumamoter.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160909c0bc39f8---84066000313.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=reference+letter+for+college+scholarshipPDF 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_off0000f441.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF441 | 16616 bytes |
SHA-256: fc6fe985601c7fe6e5b114d100165a966abedd552ee890525eb6e1192d59a141 |
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font_01_sfnt_off00011f6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F6D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013784.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13784 | 10804 bytes |
SHA-256: c12791e7f634aad8825f69d6a7c3e7151479f9897caedc08784c10a499f9a420 |
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