MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to other PDF files hosted on disposable domains, indicating a link farm or redirection strategy. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for executing malicious code within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 https://lazeo.nl/userfiles/file/ziguwularufuwiri.pdf In PDF document text
- http://www.childofafrica.org/media/userfiles/file/pevopigidapasijawolifug.pdfIn PDF document text
- http://61kidsclub.com/userfiles/file/wasaguzevofugetakazotasuv.pdfIn PDF document text
- http://studiotecnicomaglio.it/userfiles/files/daxaxi.pdfIn PDF document text
- http://thebankcardservices.com/uploads/files/41836094999.pdfIn PDF document text
- http://korea-labels.com/ckfinder/userfiles/files/14017795059.pdfIn PDF document text
- http://dansensvenner.dk/imagesfile///67861238132.pdfIn PDF document text
- http://digilit.ir/basefile/digilitir/files/88058021795.pdfIn PDF document text
- http://clinicaveterinariacittadivignola.com/userfiles/files/85662316287.pdfIn PDF document text
- http://doctour.hu/uploads/ckfinder/userfiles/files/60715283910.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/uee8mto0vsebpuvh5qo20eeo74/4616770732.pdfIn PDF document text
- http://www.celso.org/download/49141079107.pdfIn PDF document text
- http://stomerijindex.nl/images/uploads/15344672860.pdfIn PDF document text
- https://cpc-serbia.org/js/files/51459934660.pdfIn PDF document text
- https://sieuthimaytinhcu.vn/upload/files/kubazebatomabola.pdfIn PDF document text
- http://hai-bi.com/uploads/files/202109181536481830.pdfIn PDF document text
- http://backupcenters.com/userfiles/file/rinexajudalobuwu.pdfIn PDF document text
- https://officialbacknumber.org/editor_up/81382330565.pdfIn PDF document text
- https://sainaudit.mn/File/89250061432.pdfIn PDF document text
- https://anukulagrotech.com/userfiles/file/bozuzebikedet.pdfIn PDF document text
- https://ottopianos.nl/files/gomediguwuj.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613efac8cbe0c---dedakuvubotu.pdfIn PDF document text
- http://ourconn.com/userfiles/file/202109021014477623.pdfIn PDF document text
- http://www.pavimentosyreformasferlu.es/ckfinder/userfiles/files/54284528735.pdfIn PDF document text
- http://khojedu.net/userfiles/file/vobuvifateliwaze.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=free+views+instagram+trialPDF 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_off0000b253.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB253 | 10460 bytes |
SHA-256: cd19947bb81166d62349c06e6222beecbdaf5fb13d7b925eb8bd40e9a64699ae |
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font_01_sfnt_off0000ca0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA0F | 17800 bytes |
SHA-256: 8d340ddaf5d3f2960c66d0afaae9a176fc7949d6a536620210f5df69217e2d0d |
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font_02_sfnt_off0000f7c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7C4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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