MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of a password-protected archive lure. The PDF contains numerous links to external files, many of which are hosted on potentially disposable domains or compromised CMS uploads, suggesting a distribution mechanism for a secondary payload. No scripts were extracted, but the overall pattern points to a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://bright-mineral.com/uploadfile/file/2021091607013793.pdf In PDF document text
- http://sibaco.ru/ckfinder/userfiles/files/toxolagororiw.pdfIn PDF document text
- https://777mto.com/contents/files/labosegufujakonofobizixif.pdfIn PDF document text
- http://ambulatorioveterinariocamali.com/userfiles/files/78407280293.pdfIn PDF document text
- http://yh-nutri.com/filespath/files/20210916065250.pdfIn PDF document text
- http://mai-colle.jp/userfiles/file/5114059460.pdfIn PDF document text
- http://anpo.vn/upload/files/sikanojagitotufexomajazi.pdfIn PDF document text
- http://propack-th.com/image/upload/File/pomem.pdfIn PDF document text
- http://amy-tsai.com/images_express/userfiles/files/saxez.pdfIn PDF document text
- http://glina-master.ru/admin/ckfinder/userfiles/files/toxodurifekis.pdfIn PDF document text
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161303f725d8d0---3246365517.pdfIn PDF document text
- http://1carl.com/userfiles/file/43568429430.pdfIn PDF document text
- https://varbackaforskola.se/ckfinder/userfiles/files/fekoveluribopebomekuna.pdfIn PDF document text
- http://fashionflutters.com/ckfinder/userfiles/files/85819249307.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1614137d2166be---bezasopelulezujetina.pdfIn PDF document text
- https://mjrspot.com/fckimages/file/58946080544.pdfIn PDF document text
- https://laps.pl/userfiles/file/puzepaga.pdfIn PDF document text
- http://www.southpointinstitutehowrah.com/admin/uploads/file/maduxu.pdfIn PDF document text
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f25222b234---bagironejokifonomem.pdfIn PDF document text
- https://evpersoneli.net/ev-personeli/file/85061961791.pdfIn PDF document text
- http://norilsk.torbay.ru/images/uploads/file/bogomesitenora.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=how+to+deactivate+sim+toolkitPDF 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_off0000e0c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0C9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f8db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8DB | 18288 bytes |
SHA-256: caab39ff8dcecb0e4346f08a3988aa36a87ae32f85ff9b8897d698d8a095f093 |
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font_02_sfnt_off000128fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128FE | 10564 bytes |
SHA-256: c129d25f6e9cec834681342ddf959ce38fa388059fc13912ed2f5c9d9cc57812 |
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