MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to host malicious files. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to download an archive and provides a password, a common tactic to bypass gateway security. ClamAV detection and ML classification confirm the malicious nature of the PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
Heuristics 7
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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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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 http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/e9ce1727119902c7d559b00f2cc016ee/diwog.pdf
- http://kipia-nn.ru/userfiles/file/goxutefoxi.pdf
- http://jedzenie365.pl/ckfinder/userfiles/files/taworazubewubajilu.pdf
- http://gorsilawfirm.com/userfiles/file/10181966524.pdf
- http://wonikqnc.com/upload/editor/file/1624468942.pdf
- http://aisef.org/uploads/userfiles/file/file/fadel.pdf
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/rfs0iorso8iufl3usm3railk74/58322309903.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160e903cc94c09---papulubalaranebevu.pdf
- http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9fe7bcb4e---2095184666.pdf
- http://perilatomsk.ru/ckfinder/userfiles/files/kaluxus.pdf
- https://chokysitohang.com/Uploads/userfiles/files/litidazoj.pdf
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c089e829616---dexizibu.pdf
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/6998caee27128960b36ca77c3450270a/61102202651.pdf
- http://tavaszitura.eu/userfiles/files/fotunotozabiwosuwoloxab.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3714a2102e---46727743010.pdf
- http://valaptop.com/ImagesVA/file/55964310484.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b55c7bbb60d---sopoja.pdf
- http://www.melloecastro.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d4dbb192df---buzulezijutomafalonuwa.pdf
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16080f50cd83d6---kosedo.pdf
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086e7f9d06cb---wowogobubasigunopogex.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a969e708e61---durinedizesegebijitixafor.pdf
- http://nextgenship.net/upload/file/20210803162797215685.pdf
- http://aelma.com/sites/default/userfiles/file/58294472646.pdf
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/9f34a9ab9a441553724bbd848352bef1/bedelupedupiwiduta.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608134520f8ba---35231343554.pdf
- https://newtech-utm.pl/userfiles/file/mafogurujulumonetara.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/es9c9o6qk6aiiisi38qem3pifr/finotutuxexokabepimif.pdf
- http://alibabashipping.com/userfiles/file/59289593334.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=libro+de+matematicas+2+de+secundaria+contestado+2019+larousse
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e4e4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4E4 | 16792 bytes |
font_01_sfnt_off0000fcfb.bin2d4ee589cffa0cd5b5a3a42627a2b4ecc1bfe6d2496251f5e4c0c96f1aff1c5f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCFB | 11188 bytes |
font_02_sfnt_off00011730.bin9c928bf144e3eec6b0e52ae2bba533670589b2228405e28e178bb89e049a64b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11730 | 1684 bytes |
font_03_sfnt_off00011f28.bin190ba494c1d66798b8952378deb42ace41dc528de541b02660e80195397482ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F28 | 18376 bytes |
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