MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple embedded links, with one specifically identified as a random URL pointing to another PDF file. The 'SE_CALLBACK_LURE' heuristic suggests a phishing or tech-support scam context. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://emilline.dk/ckfinder/userfiles/files/rabonofipumuleve.pdf In PDF document text
- http://filippodelvita.com/demo/userfiles/file/momedininen.pdfIn PDF document text
- http://mosme.org/uploadfile/files/63997637171.pdfIn PDF document text
- https://castel.ro/userfiles/file/48662045474.pdfIn PDF document text
- https://www.osteopathe-montpellier-sud.fr/ckfinder/userfiles/files/ripap.pdfIn PDF document text
- http://sportingclubalbinia.eu/userfiles/files/60072123096.pdfIn PDF document text
- http://drigungkagyurinchenpalbarling.org/upload/userfiles/files/gadekojodigivezetat.pdfIn PDF document text
- https://xn----7sbbg1ddpkdc.xn--j1amh/uploads/files/mesasamuzasulumemawovem.pdfIn PDF document text
- https://www.parquesanalbertohurtado.cl/ckfinder/userfiles/files/vepamubosogajigofugaxilus.pdfIn PDF document text
- http://sspvjd.com/FileData/ckfinder/files/20210902_D3584B2CC5534241.pdfIn PDF document text
- http://texinpack.com/uploadfile/file///2021090723533555.pdfIn PDF document text
- https://www.domosystem.gr/ckfinder/userfiles/files/56787534096.pdfIn PDF document text
- https://aadharshilaschool.org/userfiles/file/wunuxedupidafaxejegun.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613526e80411b---bagusigegatimimaf.pdfIn PDF document text
- http://abwmarlboropike.com/uploads/files/tofatefedanojudetatubovu.pdfIn PDF document text
- http://studiodugnani.it/userfiles/files/27652588955.pdfIn PDF document text
- http://csc028.com/userfiles/file/20210913164558_si01ji.pdfIn PDF document text
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/161397a42e4900---wumes.pdfIn PDF document text
- http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/21642729506.pdfIn PDF document text
- http://maksimetall.ru/files/3059822194.pdfIn PDF document text
- http://bolshunoff.ru/images/wysiwyg/file/15659392771.pdfIn PDF document text
- https://thaiahpa.com/flash/files/rijogajokabidumajebabu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=items+to+make+in+minecraftPDF 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_off0000efbc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFBC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000107d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107D3 | 10492 bytes |
SHA-256: d9da65a69daf7754d49ad7928829c9ca421e1e180b3bb57394016f024150e716 |
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font_02_sfnt_off00011fb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FB0 | 17836 bytes |
SHA-256: db35c15d3ae1a0c693e3812eeb77372b4204bb346a9c573f167e5a00b9a7c776 |
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