MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests it may be used to trick users into downloading password-protected archives, a common tactic to bypass gateway security.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/480cce654d7b7678fc5d1222fa4db117/98066163866.pdf In PDF document text
- http://artside.org/data/temp/file/94732740919.pdfIn PDF document text
- http://cen7dias.es/userfiles/files/34837097122.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c26d8b9b80---86065188551.pdfIn PDF document text
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1b7c179b24---45016792432.pdfIn PDF document text
- https://seeandhearbetter.ie/img/shop//contents/87245260271.pdfIn PDF document text
- https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/b6fa1da52327335305723097f0f2da87/kefagumapikalufova.pdfIn PDF document text
- http://alliance-ic.ru/uploads/file/12206191107.pdfIn PDF document text
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/d0e66d65fa881bd42b8c5d6ef7f7c7b2/49069635430.pdfIn PDF document text
- http://julianina.dk/upload/file/kufeposujab.pdfIn PDF document text
- http://escuelasfutbol8.com/docs/files/lokusixinidulibako.pdfIn PDF document text
- http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160909edc2e3ac---4708772170.pdfIn PDF document text
- http://brainbond.ro/userfiles/file/xasavolukimojekad.pdfIn PDF document text
- http://shesob.com/file/files/pazagovamowosamax.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608550c325029---jivotu.pdfIn PDF document text
- https://atphp.ch/userfiles/file/wupexofapuri.pdfIn PDF document text
- https://tekartltd.com/upload/files/kifowudij.pdfIn PDF document text
- http://dietetyka-24.pl/images/files/61515745124.pdfIn PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-4-29/20210429115756216608.pdfIn PDF document text
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/7f938c5af9a9fc5296ffd82e1a0d04b2/9092079336.pdfIn PDF document text
- https://kawanmto.net/contents//files/64463172310.pdfIn PDF document text
- http://karthikeyanjayaram.com/userfiles/file/vafidumiposuvusegipo.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16079b7dde66ef---6086298888.pdfIn PDF document text
- http://www.almansori-ye.com/almansorifiles/files/letimufagenezixifukup.pdfIn PDF document text
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608cf2f085af6---55259664206.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=james+w+nilsson+electric+circuits+solutions+pdfPDF 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://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_off0000dc87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC87 | 10956 bytes |
SHA-256: 49be53e389901011ebdde23f30228c606adcee2a71994987139c64b0acca5815 |
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font_01_sfnt_off0000f5f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F5 | 21292 bytes |
SHA-256: 612fbbb800feb900aa29bae4e90a5158f1dbed2e28a71d08199ea3e09ae7d144 |
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font_02_sfnt_off00012c26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C26 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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