MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to numerous disposable domains and compromised WordPress sites, a common tactic for phishing or distributing malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of multiple external URIs and a link farm suggests the primary goal is to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://catamma.ru/uplcv?utm_term=primary+storage+devices+pdf PDF link annotation
- http://caycanh.vn/images/fck/file/selotuwaxoxatitara.pdfIn PDF document text
- http://musikpark-live.de/userfiles/file/fikaxuwulemunivofipo.pdfIn PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160c1f2d4d19ec---birexunizevaru.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/adhabpdca04a34adag2go87ju1/22888411173.pdfIn PDF document text
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/160803734b42fc---wijiwatugafewitewamovego.pdfIn PDF document text
- http://solarexperte.ch/fckeditor/editor/images/file/33194946736.pdfIn PDF document text
- https://cafesca.info/ckfinder/userfiles/files/mabotejem.pdfIn PDF document text
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/160933cbb5dfc1---14663976089.pdfIn PDF document text
- http://vtdsbinhthuan.vn/public/uploads/userfiles/file/48224775419.pdfIn PDF document text
- http://digjamaica.com/app/webroot/files/tiwotuve.pdfIn PDF document text
- http://hoitruyengiaocodocvietnam.com/uploads/image/files/fowarakenibivirawipupo.pdfIn PDF document text
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/16090beea543c2---20429739894.pdfIn PDF document text
- https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/bma8md4h5uk74u9enkm9j8ktb0/24483769159.pdfIn PDF document text
- http://crosswaysrecruitment.com/userfiles/file/lakawozidopabevalagi.pdfIn PDF document text
- https://senfina.top/uploads/files/vizotamekomaletux.pdfIn PDF document text
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607ac605d50ad---zajim.pdfIn PDF document text
- https://zebcom.in/userfiles/file/karof.pdfIn PDF document text
- http://centralgiving.com/media/userfiles/file/87662364691.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/d07af64c5a061d52ada9b1345e23fd80/7980395245.pdfIn PDF document text
- https://agrilaui.com/userfiles/file/mezag.pdfIn PDF document text
- http://seabeachthailand.com/UserFiles/file/71748776404.pdfIn PDF document text
- http://metabolizmusonline.hu/images/upload/file/46523541891.pdfIn PDF document text
- http://www.aluvascientific.com/UserFiles/file/53878694545.pdfIn PDF document text
- https://securitydm.net/slicice/file/64721838547.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- 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_off000111d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111D2 | 17920 bytes |
SHA-256: 725ab17946a69b0fe06dc26a36004eb2af2e642a4504fd006f401fed17333237 |
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font_01_sfnt_off00014076.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14076 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001588d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1588D | 10996 bytes |
SHA-256: 0662d5a45902716eeedf597b17a39209782710a235d979f7652f12616e36c6c9 |
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