MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this. While no scripts were explicitly extracted, the PDF structure and heuristics point towards an attack pattern involving redirection to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9550
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://atomleasing.ru/media/File/melili.pdf In PDF document text
- http://eraldocomo.it/userfiles/files/vojenononelanitusizene.pdfIn PDF document text
- http://ropesadventure.com/d/files/levej.pdfIn PDF document text
- http://riggi.ru/userfiles/file/18261775254.pdfIn PDF document text
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/f9e58a21e5b1b8b416ea04134b09aeac/71145748509.pdfIn PDF document text
- http://leadingedgecorporate.com/user_images/file/81862357929.pdfIn PDF document text
- https://extremedriveline.com/ckfinder/userfiles/files/zirunawivorugodujo.pdfIn PDF document text
- http://99hospitalitygroup.com/ckfinder/userfiles/files/44497617719.pdfIn PDF document text
- http://deckdreams.com/clients/3/34/34055ef41782f8f15ebf372c1e39ecad/File/19260196214.pdfIn PDF document text
- https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/n2p3ilt2h0g9m82je86gqm7o11/93935511981.pdfIn PDF document text
- https://lesfeesdelhetre.fr/upload/files/4222847846.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/16079b1e9cb39c---rivesuxufemamuvavunik.pdfIn PDF document text
- http://madang.eu/f_pds/fck/file/lisuravuno.pdfIn PDF document text
- http://geodeslaboratori.eu/userfiles/files/kikigafopozovezegife.pdfIn PDF document text
- http://ps-chiptuning.hu/userfiles/files/basirobewokilufe.pdfIn PDF document text
- http://www.dkmodels.net/ckfinder/userfiles/files/kowakufuvidakukodijuduna.pdfIn PDF document text
- http://arch-teh.com/pic/userfile/tosizamujeg.pdfIn PDF document text
- https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609002dfa9537---92345250081.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160dbd4560e2ed---watisatinox.pdfIn PDF document text
- http://clinicaveterinariagussago.com/userfiles/files/76014522189.pdfIn PDF document text
- http://chinhlytailieuluutru.com/media/ftp/file/42492014022.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cbc1b7851bc---zupuxedeperazubebo.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/57921678260.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=list+of+herbivores+carnivores+and+omnivores+animals+with+picturesPDF 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_off0000e285.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE285 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fa97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA97 | 16488 bytes |
SHA-256: 3fe7682065625e35d346b405b4f61c88f5dd512bd55f16be338a59aca2c7fd7d |
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font_02_sfnt_off00012567.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12567 | 11236 bytes |
SHA-256: 7a3966fd966dd7c0f4de7dc21796505e28e98c2178dc2a88f95808fbaf7808e6 |
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