MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
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 various domains, suggesting a phishing or link-farming operation. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically flags the PDF as a link farm on disposable hosting, reinforcing the phishing lure interpretation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://synerhu.ru/uplcv?utm_term=android+developer+notification PDF link annotation
- https://prawobrzeze.info/userfiles/file/tesafa.pdfIn PDF document text
- https://eastmanllc.net/ckfinder/userfiles/files/warelazu.pdfIn PDF document text
- http://recviem.ru/img/upload/60572097558.pdfIn PDF document text
- http://ljjxmining.com/uploadfile/file///2021092812192880.pdfIn PDF document text
- https://suprastoc.ro/userfiles/file/dasutepuwimoveji.pdfIn PDF document text
- http://minerva-collection.net/files/files/64451798217.pdfIn PDF document text
- http://lanaecoloridabruzzo.it/userfiles/file/tezogorir.pdfIn PDF document text
- http://boxerdapolenta.com/cmsimple/images/file/77009340835.pdfIn PDF document text
- http://vivaldiskibus.com/FileData/ckfinder/files/20210901_5CC724D23EE7F93A.pdfIn PDF document text
- http://ergo-logo-bamberg.de/userfiles/file/73176618015.pdfIn PDF document text
- https://roarmysecurity.ro/mm/file/mopom.pdfIn PDF document text
- http://tgroupsrl.com/userfiles/files/57037502326.pdfIn PDF document text
- http://antansconstructions.com/ckfinder/userfiles/files/5026215854.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/vepuzibevafafonobelomadi.pdfIn PDF document text
- http://paroissedementon.fr/upload/files/28905841940.pdfIn PDF document text
- https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/zokarigixovaxesakix.pdfIn PDF document text
- https://eastmangroupllc.net/ckfinder/userfiles/files/kexofepitiji.pdfIn PDF document text
- https://bankubezpieczen.pl/userfiles/file/xogufijoturevarijikas.pdfIn PDF document text
- https://greenline.bg/userfiles/file/31301595750.pdfIn PDF document text
- http://kuryakyn.ru/userfiles/file/57609687261.pdfIn PDF document text
- https://cottingham-group.com/cufiles/files/13634360281.pdfIn PDF document text
- https://bold-iot.com/uploads/files/202109231942423242.pdfIn PDF document text
- http://gospelpour100voix.com/fichiers/newsletter/file/55285639317.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_off0000bfcc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFCC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d7e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7E3 | 10492 bytes |
SHA-256: 0b7bfce543695752c25cb95de0ec874deba49158c62c7a2d455126486d31a97c |
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font_02_sfnt_off0000efd8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFD8 | 17780 bytes |
SHA-256: 98e0d94a293bb3bc399e0a9ca1a537a43c96838e68673656202521b7d5e63923 |
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