MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by multiple heuristics as malicious, including a high-severity alert for random URL links and a critical ClamAV detection for Pdf.Phishing.Trojan. The presence of numerous external URIs, many of which appear to be part of a link farm on disposable hosting, strongly suggests a phishing or malware distribution attempt. The ML classifier also returned a high probability of maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=fate+of+furious+online PDF link annotation
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16141e6177b00b---55171047749.pdfIn PDF document text
- https://metnar.pl/web/uploads/files/851523203.pdfIn PDF document text
- http://carraracucinecomponibilitrapani.it/userfiles/files/setepojomolegedubame.pdfIn PDF document text
- http://forspeed.cz/ckfinder/userfiles/files/19762505197.pdfIn PDF document text
- https://eastoncn.housemember.com/uploads/files/lekarutazerivofobozapiti.pdfIn PDF document text
- https://agencement-menuiserie-var.fr/stockages/files/60043165088.pdfIn PDF document text
- http://temple.mo/userfiles/file/mizorik.pdfIn PDF document text
- http://www.naturhalles.fr/fckeditor/userfiles/file/bufafugopitufunotijejinu.pdfIn PDF document text
- https://eminencesolutions.in/resources/userfiles/file/kizemojanepideb.pdfIn PDF document text
- https://vidaleve.ind.br/ckfinder/userfiles/files/57660011336.pdfIn PDF document text
- http://gizmakina.com/depo/sayfaresim/file/53004942712.pdfIn PDF document text
- https://giorgiosantinelli.it/file/mofozujaligebotebitasi.pdfIn PDF document text
- http://er-trans.com/img/produkty/files/pedagoxabunivewulo.pdfIn PDF document text
- http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/6791994041.pdfIn PDF document text
- https://xn--b8qxb801j.tw/upload/files/75258039805.pdfIn PDF document text
- http://homeopathyhongkong.cn/files/movinimisiw.pdfIn PDF document text
- http://travellerisland.com/files/gikodigugotifat.pdfIn PDF document text
- http://area100impianti.it/userfiles/files/zibugurofonemotuzalu.pdfIn PDF document text
- http://thevalleytrader.com/files/dinelupumofogesa.pdfIn PDF document text
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/cda25588ff76e7218813fd83be1e6f0d/60701835639.pdfIn PDF document text
- https://drosamahetta.com/userfiles/file/vuvefewaxa.pdfIn PDF document text
- http://xn--2e0b95unoa536adofm5h.com/userfiles/file/xasojakef.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_off0000ce64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE64 | 20500 bytes |
SHA-256: b46c4af6dd6a6d9fb00e23fa7e4b55135809ae48668afae88741103230e1da0b |
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font_01_sfnt_off000101e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101E5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000119fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119FC | 10284 bytes |
SHA-256: 8b03dbba0835816ec6c07427cf6446783d47df291a2f363a941b2173adcaea13 |
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