MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to external domains, suggesting a phishing or malware distribution scheme. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this by identifying the PDF as a link farm on disposable hosting, likely to obscure the true malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 5
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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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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://infrive.ru/uplcv?utm_term=free+vfx+app+for+android PDF link annotation
- http://www.naturhalles.fr/fckeditor/userfiles/file/juwemigav.pdfIn PDF document text
- http://vizcsap.hu/files/file/mijixafexelavebesopivij.pdfIn PDF document text
- http://vietsinphar.com/uploads/files/1371893492.pdfIn PDF document text
- http://marjoleintje.nl/include/userfiles/73654965432.pdfIn PDF document text
- http://kamakuralosgatos.com/uploads/files/sogujigow.pdfIn PDF document text
- https://sportnazona.bg/f/uploads/files/vusadugazotatixodijaxuf.pdfIn PDF document text
- http://nbmounts.com/userfiles/file/1631274341.pdfIn PDF document text
- http://vetportonaccio.it/userfiles/files/17368691202.pdfIn PDF document text
- http://tingchucontrol.com/Uploadfiles/files/mupigirok.pdfIn PDF document text
- http://maivietnamesecotati.com/uploads/files/84967041502.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/59191052120.pdfIn PDF document text
- https://sca-eagleegg5k.com/ckfinder/triplebuserfiles/file/katuze.pdfIn PDF document text
- https://ustunbilgisayar.com/userfiles/files/xuzixul.pdfIn PDF document text
- http://www.elstar.ru/uploads/files/61356032076.pdfIn PDF document text
- https://nezamirekhaseafoods.com/userfiles/file/legaxizavimer.pdfIn PDF document text
- https://tideandtigers.com/ckfinder/userfiles/files/23169412528.pdfIn PDF document text
- http://cp-tournament.org/ckfinder/userfiles/files/42675640140.pdfIn PDF document text
- http://rowadhr.com/app/webroot/upload/files/jupazafewisigi.pdfIn PDF document text
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16130f648c72ea---84695569089.pdfIn PDF document text
- http://stellarvvv.ru/ckfinder/userfiles/files/wubuzotifijebatiraki.pdfIn PDF document text
- http://ntouioc.ntou.edu.tw/ckfinder/userfiles/files/wijuwujagig.pdfIn PDF document text
- http://shsuorui.com/uploadfiles/fckeditor/20210917/file/16319022146767.pdfIn PDF document text
- https://fo-prefectures.com/pages/files/waditikukipa.pdfIn PDF document text
- https://perfecthospitals.org/FCKeditor/file/sujevarolofaletanarezowed.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://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_off0000e5d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5D7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fde9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDE9 | 18056 bytes |
SHA-256: e4ecf0970c7914d18c21146be6b652956b42894fa1742ae30378a1fb918da62a |
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font_02_sfnt_off00012ccf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CCF | 10324 bytes |
SHA-256: cda4a7da2d266ad2dfe34625e03f98db068e3260397eebdd3714af1eec3c6f95 |
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