MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to compromised CMS uploads, suggesting a phishing or malware distribution lure. While no scripts were directly extracted, the PDF structure and embedded URLs indicate an attempt to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16081e1a3ae953---45014316171.pdf In PDF document text
- http://sun-green.eu/ckfinder/userfiles/files/fedovalilumisinibonoveg.pdfIn PDF document text
- http://nt-module.ru/ckfinder/userfiles/files/45284551768.pdfIn PDF document text
- http://allseasonsart.com/uploads/fck_uploads/file/pozobilefonozavad.pdfIn PDF document text
- http://ibconsulting.it/userfiles/files/xiweloneboxiluzakoj.pdfIn PDF document text
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1608547eaa6094---gepugem.pdfIn PDF document text
- http://jrpst.pl/userfiles/file/vixejazitilurul.pdfIn PDF document text
- http://www.investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/62651674801.pdfIn PDF document text
- http://k1a.ru/images/files/file/zanelulejuzojamufufojukel.pdfIn PDF document text
- http://poetische-malerei.de/web/editor/files/56424506334.pdfIn PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/f6735dd4b0a7e2e6c9d1a39309877c59/1484050294.pdfIn PDF document text
- https://zohopinler.com/calisma2/files/uploads/tosidu.pdfIn PDF document text
- http://booklandbooks.com/userfiles/file/kaximamasidabetebi.pdfIn PDF document text
- http://franklinbristerharveyfamily.com/clients/a/a8/a8910385c57dfddac3c6311e2bd1422e/File/ponekiguwusi.pdfIn PDF document text
- http://irishheritagesociety.net/clients/7/7f/7f3653e4c5d791bf76f28d2bf9929747/File/zigiz.pdfIn PDF document text
- https://zd-zeta.com/uploads//files/202108071546331121.pdfIn PDF document text
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c852a94c67b---pobukirirubano.pdfIn PDF document text
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ab39f709704---40275214133.pdfIn PDF document text
- http://magnachip.cn/userfiles/file/20210516135256.pdfIn PDF document text
- http://jnmindia.com/outscapes/admin/ckeditor/uploads/ck/files/59657531763.pdfIn PDF document text
- https://sentinels.ro/userfiles/file/buvotutevukipad.pdfIn PDF document text
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1607c08ec16560---kumulasesumiw.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=how+to+get+rid+of+radical+in+denominatorPDF link annotation
- 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://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_off0000d655.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD655 | 18196 bytes |
SHA-256: 9f7bd8892a42d6ba6ab8f5c15e92d89e737ac5e912060c71362f27fa5363900f |
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font_01_sfnt_off000105e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105E9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011e00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E00 | 10728 bytes |
SHA-256: 6aa1516114350ac8353a3f974e0111e30157c11d5ae661021619b4e19c85f3e7 |
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