MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript and multiple external URIs, many of which point to compromised WordPress sites acting as a link farm. The primary purpose appears to be directing users to download further malicious content, as indicated by the ClamAV detection and ML classifier flagging it as malicious. The embedded JavaScript likely facilitates the redirection or download process.
Machine Learning
- Nyx PDF Classifier malicious score 0.7261
Heuristics 8
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/a188fb62bc3225c0f8dc59f1a5437779/bulirematuresilukukep.pdf In PDF document text
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ae49010669---20442609962.pdfIn PDF document text
- http://eminenceinc.com/userfiles/file/69371608573.pdfIn PDF document text
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/161379489d3601---redenumagurodado.pdfPDF link annotation
- http://sinosteelcode.com/filespath/files/20210911205121.pdfIn PDF document text
- http://orsini-blasioli.it/userfiles/files/66500567528.pdfIn PDF document text
- http://i-daa-wl.de/userfiles/redabotoxubub.pdfIn PDF document text
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16144abb4a30b0---1167147014.pdfIn PDF document text
- https://duragloss.pl/userfiles/file/99037732432.pdfIn PDF document text
- https://sanghvicranes.com/staging/media/79285283263.pdfIn PDF document text
- http://taigesw.com/upload/files/zofikavulunar.pdfIn PDF document text
- https://listapp.in/ci/userfiles/files/bamanixim.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/161389e725672d---tegeni.pdfIn PDF document text
- https://eetravel.net/file/nuposenofoxavivafi.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/jikixovet.pdfIn PDF document text
- http://balmybnb.com/t/tutorfirm/uploads/ck/files/kopewutatozamafo.pdfIn PDF document text
- http://circuitvietnamcambodge.com/hinhanh/file/67118536851.pdfIn PDF document text
- http://iraneto.com/basefile/iranetocom/files/jufinukozeliki.pdfIn PDF document text
- https://ever-progress.dacola.com/upload/files/77033098134.pdfIn PDF document text
- https://daulte.com/ckfinder/userfiles/files/10077477180.pdfIn PDF document text
- https://menokatea.com/ckfinder/userfiles/files/sagokitulub.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/jufesodorozodaw.pdfIn PDF document text
- https://www.agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/terododosisep.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=arkham+horror+lcg+3+playersPDF 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_off0000c803.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC803 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e01a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE01A | 10884 bytes |
SHA-256: d557375c325a180789f2d548987c8b6e1fc8761cde77830b539dad80c43e21be |
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font_02_sfnt_off0000f965.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF965 | 16856 bytes |
SHA-256: cf0ba6d7a6768ab0617e142d54f4c99e917a1b81b439c5c1e2f12ff1072560f6 |
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