MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to external websites, many of which appear to be part of a link farm designed to obscure the ultimate destination. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway security. The 'SE_CLOUD_DOC_LURE' heuristic further suggests a social engineering pretext involving impersonation of cloud file-sharing services. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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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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Cloud document impersonation lure medium SE_CLOUD_DOC_LUREDocument impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
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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://drafthe.ru/uplcv?utm_term=apk+unzip+online PDF link annotation
- http://medtravel.pro/images/hand_uploaded/files/bibuxumefemuvikepomejo.pdfIn PDF document text
- https://lacaune.hu/userfiles/file/vagujuzuwi.pdfIn PDF document text
- http://hunting.kg/userfiles/file/jozotova.pdfIn PDF document text
- http://rutka.pl/media/upload/files/579fa7018ecb18f0829755ae5386af3f.pdfIn PDF document text
- https://www.spitalmoldovanoua.ro/ckfinder/userfiles/files/48533715627.pdfIn PDF document text
- https://pasarantogel.com/contents/files/kuzaferosija.pdfIn PDF document text
- http://www.kroonzuivel.nl/ckfinder/userfiles/files/rikepeposiruxubafi.pdfIn PDF document text
- http://problemconsulting.com/img/download/files/riroloba.pdfIn PDF document text
- http://studioriboldi.eu/userfiles/files/99678585964.pdfIn PDF document text
- http://moyamoya.center/images/hand_uploaded/files/tozugemomuxi.pdfIn PDF document text
- https://cheesykeju.com/contents/files/kolavisipenejimaxidoba.pdfIn PDF document text
- http://iphonedown.com/ckfinder/userfiles/files/89637464503.pdfIn PDF document text
- http://rurisnet.org/images/file/95553222682.pdfIn PDF document text
- https://mar3ol.com/Files/files/18710396076.pdfIn PDF document text
- https://skvacations.com/userfiles/file/51770531612.pdfIn PDF document text
- http://metabolizmusonline.hu/images/upload/file/kizomenubilulexupe.pdfIn PDF document text
- http://inventory-acepipe.com/images/uploads/files/24595443058.pdfIn PDF document text
- https://vasutaszeneiskola.hu/ckfinder/userfiles/files/xudezijitedujulepuruwub.pdfIn PDF document text
- http://marleenjansen.nl/images/uploadfiles/37667945081.pdfIn PDF document text
- http://ez-surveying.com/htdocs/cljr/data/files/xuzofekikiz.pdfIn PDF document text
- http://bowie.abwingsmd.com/uploads/files/dipozoxotigokutaki.pdfIn PDF document text
- http://bumsnab.ru/uploads/files/94352148865.pdfIn PDF document text
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cf9eb6dc36---lebagadogo.pdfIn PDF document text
- https://inprovitbrasil.com/ckfinder/userfiles/files/fuzebibururesaminusanirit.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_off0000d6f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6F8 | 9952 bytes |
SHA-256: 4f261445074ffca7a7961c6d7b85e38f45e65167189be4e11e1c3476c9bba5e9 |
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font_01_sfnt_off0000ed16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED16 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010528.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10528 | 18124 bytes |
SHA-256: 98731b655a5a0038b612180faad6a7273b016a9b9c973be9ef44c3998de692ee |
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