MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a link farm pointing to numerous compromised websites, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The ML classifier and ClamAV also flagged this PDF as malicious. The primary purpose appears to be redirecting users to potentially malicious content hosted on these compromised sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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://dutchfansitenetwork.nl/ckfinder/userfiles/files/76273157828.pdf
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160afc10584b2b---rarivisowi.pdf
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/voobnvoecjq8s22l4dumht1o6v/devok.pdf
- http://dh-cell.net/ckfinder/userfiles/files/69186921320.pdf
- http://srtprogetti.eu/userfiles/files/depusosaruf.pdf
- http://aucoindeshalles.com/menu/file/pasejozumugazivikubolad.pdf
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/6427f605680d64d64ee807aeda1be802/rijafutubaj.pdf
- http://altelaw.com/uploads/image/file/17172306399.pdf
- https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/9640eecfd8e69f4d8622553c057c414f/duzakovamezu.pdf
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/963fd1c90ec76f9156017575ab87208e/sepuvujupi.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16073f75c69b95---93214072247.pdf
- https://xo-sound.ru/userfiles/file/vazebose.pdf
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c842613c73---karotumadotunarafurenutu.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4124b4fb78---gizisolosozopegojibipobak.pdf
- https://hiperaktivite.info/userfiles/files/jomasujonilaxoxiva.pdf
- http://labonscafe.com/userfiles/mafowezelasigaz.pdf
- https://ideylia.fr/uploads/file/2366335181.pdf
- http://2ds-creations.fr/userfiles/file/nokusaz.pdf
- http://astro2sphere.com/admin/images/file/rebalexawanowupud.pdf
- http://moon-villa123.com/CKEdit/upload/files/zexokijoxetiw.pdf
- http://jp-cable.com/d/files/leruxeb.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609921391794b---nebizubolodafiwakagudixit.pdf
- http://yacpa.org/yacpafiles/file/25443331330.pdf
- https://zoorichi.com/temp/fckeditor/file/xewiz.pdf
- http://hccc252.ca/clients/e/e4/e484b38507f190a955b66748903449e1/File/bulukejeparex.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=p+touch+1100ql+manual
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- 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_off0000de9d.bin1e04ff65669e4ff1dabc771538f52381ad647e89764d5e4cce0adc97de13ef52 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE9D | 21360 bytes |
font_01_sfnt_off000112a7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112A7 | 16792 bytes |
font_02_sfnt_off00012abe.bine9bda548cf63e94425b208e0eb0cf9c2d849d1339542dde9715addcaa6104300 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12ABE | 10424 bytes |
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