MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ClamAV and an ML classifier, and exhibits characteristics of a phishing or malware distribution lure. It contains embedded JavaScript and multiple links to external domains, some of which are hosted on disposable or low-reputation domains, suggesting an attempt to redirect users to malicious content or download further payloads. The presence of a PDF link to an algorithmically-generated URL further supports this malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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 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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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 http://korea-seals.com/ckfinder/userfiles/files/judegatigelimanemob.pdf In PDF document text
- http://hurtmar.pl/Upload/file/timiluwowujetokitekusi.pdfIn PDF document text
- http://moristas.com/userfiles/files/mivedolijepipagigupanuji.pdfIn PDF document text
- https://ddshower.com/ckfinder/userfiles/files/ruwofo.pdfIn PDF document text
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/16133b39c8c39b---xalezibe.pdfIn PDF document text
- http://needychild.org/ckfinder/userfiles/files/rokujabi.pdfIn PDF document text
- https://girl0229960192.com/upload/users/files/lejon.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/161397e752da9a---fixoxuxamevazoguruxoja.pdfIn PDF document text
- https://verlauf-ekb.ru/admin/ckfinder/userfiles/files/wukonakop.pdfIn PDF document text
- http://fireprovietnam.net/luutru/files/79349446123.pdfIn PDF document text
- http://factory-01.com/js/upload/files/faporezojesovipowu.pdfIn PDF document text
- http://www.addvanceo.info/userfiles/files/xatozakiwesafinimeliju.pdfIn PDF document text
- http://restaurant-lyons.fr/userfiles/file/togajosidif.pdfIn PDF document text
- https://costabravas.com/uploads/localidades/files/kisog.pdfIn PDF document text
- https://sakesushimn.com/userfiles/files/xobukexenizurasidadavasu.pdfIn PDF document text
- http://gowowdeli.com/uploads/files/rodajugabogoxozugafi.pdfIn PDF document text
- https://ambulatorioveterinariosismondi.eu/file/tuzerabopupamebu.pdfIn PDF document text
- http://muntepa.com/userfiles/files/1951541026.pdfIn PDF document text
- https://phuquiland.com/upload/files/lewavopafibuvomejevigumo.pdfIn PDF document text
- https://andrejc.si/files/file/27113226111.pdfIn PDF document text
- http://ecole-belair.com/ecole/file/zarolofajupugix.pdfIn PDF document text
- http://mid-europe-ex.com/images/blog/file/47358422300.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=baloon+tower+defence+5PDF link annotation
- 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_off00011e06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E06 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001361d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1361D | 10480 bytes |
SHA-256: 19fa2b5e9c46d6d6ef0b5ec3daaf598061ba788a1c27fa73c1cce58095db8ad9 |
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font_02_sfnt_off00014e35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E35 | 19520 bytes |
SHA-256: c765ba7b5435c6697f23bad897abcf08cbbaca672aab13bb5a9f78745f4867fb |
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