MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links pointing to compromised websites and disposable hosting, suggesting a link farm designed to distribute malicious content. The presence of a URL with 'office 365 apk download for pc' indicates a lure to trick users into downloading a fake application. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 6
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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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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://synerhu.ru/uplcv?utm_term=office+365+apk+download+for+pc PDF link annotation
- http://langfordfinancialservices.com/userfiles/files/46144125838.pdfIn PDF document text
- http://polletnv.be/uploads/files/bidapeta.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142658da3dfc---lagaxiki.pdfIn PDF document text
- http://fotografoenricogiampieri.it/userfiles/files/133264437.pdfIn PDF document text
- https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139a5e562873---39983463773.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1614e59a83e59d---99212929018.pdfIn PDF document text
- https://playerpress.com/ckfinder/userfiles/files/famoxijanululamo.pdfIn PDF document text
- http://cmcthailand.com/ckfinder/userfiles/files/22431810308.pdfIn PDF document text
- http://fnathservices.com/upload/file/fokomafofofosije.pdfIn PDF document text
- https://ip-kamera-rendszer.hu/ckfinder/userfiles/files/55819636921.pdfIn PDF document text
- https://vinacomvietnam.vn/uploads/news_file/tunakonirotozoxozubede.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/161457e84f18c5---16543008668.pdfIn PDF document text
- http://handinks.com/ckfinder/images_store/files/rexomebesix.pdfIn PDF document text
- http://taihegas.com/filespath/files/20210910232725.pdfIn PDF document text
- http://eis-pieschel.de/UserFiles/File/tojewokirufesobiveder.pdfIn PDF document text
- http://sanarina.de/ckfinder/userfiles/files/gajojavepigetinek.pdfIn PDF document text
- https://milosislandrooms.gr/userfiles/file/98452556025.pdfIn PDF document text
- http://dh-cell.net/ckfinder/userfiles/files/32786192459.pdfIn PDF document text
- http://jyotiacademicpress.org/uploads/file/80680467275.pdfIn PDF document text
- http://nuitsdartistes.eu/images/file/dufananujilujar.pdfIn PDF document text
- http://op-gold.com/ck_image/files/dazofojodimiga.pdfIn PDF document text
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142077d84514---51996637935.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_off0000b187.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB187 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c99e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC99E | 11024 bytes |
SHA-256: 326feadcdc1d5aeeecdbe67930422ac5f6b14ddcd1e1d6e881e16826be8064f6 |
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font_02_sfnt_off0000e373.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE373 | 17684 bytes |
SHA-256: acd6e7455ee0a04a37d5ac830ece69fa8c2add8ebad667f3687b2cb6c21e490f |
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