MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF contains an embedded JavaScript stream and multiple links pointing to compromised websites, suggesting it's part of a phishing or malware distribution scheme. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to download a password-protected archive, a common tactic to bypass security filters. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 8
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://cructi.ru/uplcv?utm_term=ser+bachiller+2018+sierra+pdf PDF link annotation
- http://sme1970reunion.com/clients/7/78/786f1e38e9ed540b4a7d4f5dbcc09398/File/51982822786.pdfIn PDF document text
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160d5ec13a529d---memuwiropesisegavoliludim.pdfIn PDF document text
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bb6ca9a785e---ziwapixizekomusi.pdfIn PDF document text
- https://mirrorlink.com/public/files/files/guxizijoxuferejuz.pdfIn PDF document text
- http://bunny888.com/ckfinder/userfiles/files/6332341839.pdfIn PDF document text
- https://lescourailleurs.com/upload/editor/file/49079493774.pdfIn PDF document text
- http://homespakistan.net/magzine/uploadfiles/file/nusetagejekuturofu.pdfIn PDF document text
- https://soudurelauziere.com/upload/editor/file/32072186716.pdfIn PDF document text
- http://speed-r.com/js/upload/files/52490484238.pdfIn PDF document text
- http://westernmaki.com/uploads/files/dimutaridalelazavav.pdfIn PDF document text
- http://sun-eko.eu/files/file/texofilutuvab.pdfIn PDF document text
- https://drbumbnursinghome.in/ckfinder/userfiles/files/mivopovegafavedakipixoja.pdfIn PDF document text
- https://kultmotor.hu/images/files/2101616193.pdfIn PDF document text
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/f78b54606d2d81643c2aedc1b04352da/58245098354.pdfIn PDF document text
- https://www.ergunaygoren.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607022ca32321---32112570807.pdfIn PDF document text
- http://dentalclinicbangalore.com/uploads/modigupanatobizetovenofev.pdfIn PDF document text
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/63024c173ff424655f2c25f4ebc63d7a/rosokexubomexe.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16071d06592470---27500223786.pdfIn PDF document text
- http://scandirent-new.ru/uploads/assets/file/xenegonowatotavor.pdfIn PDF document text
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c14e9cbc58---tekabasumavafiwubilakovu.pdfIn PDF document text
- https://bistakalikotenetwork.com/userfiles/file/46283470886.pdfIn PDF document text
- http://cuanhomkinhtoanthang.com/media/file/kiwugoxelojupud.pdfIn PDF document text
- http://navigator-nsk.ru/userfiles/file/72877027063.pdfIn PDF document text
- https://culturasiapamplona.com/guiarte_userfiles/files/11282178770.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_off0000e006.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE006 | 19112 bytes |
SHA-256: bf498b5877c221cc9d25fe1f68348c95d32f1c0d469c159a76e7848172e0893e |
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font_01_sfnt_off00011063.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11063 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001287a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1287A | 11112 bytes |
SHA-256: 74d1f65dd5f0142a166a28af16020f5eceba1a8a8894662d9de3e3fac4ddd04f |
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