MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or redirecting users. The presence of numerous external URIs, many hosted on disposable domains, strongly suggests a phishing or link-farming operation. The ML classifier and ClamAV detection further confirm its malicious nature, likely as a phishing lure or a downloader for a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=me+before+you+free+ebook PDF link annotation
- http://falegnameriacastiglione.it/userfiles/files/47302963112.pdfIn PDF document text
- http://danguykhoidoanhnghiephp.vn/Upload/files/sipugetonilux.pdfIn PDF document text
- http://cainghienbinhduong.com/uploads/userfiles/file/53335425916.pdfIn PDF document text
- http://goodwill.as/userfiles/file/57320941306.pdfIn PDF document text
- http://marchmont.ru/imgs/file/88499026404.pdfIn PDF document text
- http://demkapi.com/resimler/files/74821630683.pdfIn PDF document text
- http://hemeringen.de/ckeditor_ablage/userfiles/files/kabagusokutoresenutuvig.pdfIn PDF document text
- http://agilesolutions.in/uploads/46259055135.pdfIn PDF document text
- http://www.louisianarebarcontractor.com/editorimg/file/40014137787.pdfIn PDF document text
- http://karimeh.com/public/userfiles/file/7689845182.pdfIn PDF document text
- http://ratchadatitan.com/UserFiles/File/77985540953.pdfIn PDF document text
- http://carneiro-sa.pnh.pt/js/ckfinder/userfiles/files/54980438498.pdfIn PDF document text
- http://strihaci.cz/userfiles/file/50318239715.pdfIn PDF document text
- http://boldogelet.hu/media/gunosemefofaboradivawa.pdfIn PDF document text
- https://linkevicius.com/upload/galery/file/ponobegadiliruxesezitu.pdfIn PDF document text
- http://findmecakes.com/userfiles/files/61633639023.pdfIn PDF document text
- https://groupunsur1.com/contents/files/88061166970.pdfIn PDF document text
- https://vico-inmobiliaria.com/ckfinder/userfiles/files/sipexize.pdfIn PDF document text
- http://mikailang.com/userfiles/file/20210904223304_1263250668.pdfIn PDF document text
- http://naosgym.com/userfiles/files/zofumokuvek.pdfIn PDF document text
- http://rutka.pl/media/upload/files/eaf578013e18c11bdf025bcb4e4497a3.pdfIn PDF document text
- http://4reality.cz/userfiles/files/vojamu.pdfIn PDF document text
- http://kdbelektrotechniek.nl/uploads/file/67885415486.pdfIn PDF document text
- http://remont-etalon.ru/upload/files/depubotawanotiluzove.pdfIn PDF document text
- http://elosc.com/upFile/file///ITX202109140502074646.pdfIn PDF document text
- https://cosmeticdermatologymiamibeach.com/uploads/data/files/polujujapitadojamu.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_off0000d92f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD92F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f141.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF141 | 17212 bytes |
SHA-256: e3fcc1f2386a09de6fa5b24d2576507f9bca53d9bdbb6b43488016deec16e15d |
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font_02_sfnt_off00011e4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E4B | 9976 bytes |
SHA-256: c4199993e5fc2b33af8052df8de0b389f8f38ad9a4f669469caa36015c762183 |
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