MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for delivering malicious content. The heuristic firings indicate the presence of external URIs, including one pointing to a raw IP address, and a link farm on disposable hosting, suggesting an attempt to obscure the malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to download and execute a second-stage payload.
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://newbusan.net/FileData/ckfinder/files/20210911_F5193DE2BFBD6959.pdf In PDF document text
- https://weilmclainboiler.ca/fck_upload/file/tulosomomev.pdfIn PDF document text
- http://www.chp.pl/ckfinder/userfiles/files/37022783194.pdfIn PDF document text
- http://178.62.148.222:300/ckeditor/ckfinder/userfiles/files/dunalawupufiwugawemagelu.pdfPDF link annotation
- https://dcoderesearch.com/uploads/19307496643.pdfIn PDF document text
- http://parentini.it/userfiles/files/tilivezivideta.pdfIn PDF document text
- http://quimis.org/js/ckfinder/userfiles/files/59951217559.pdfIn PDF document text
- http://xn-----6kcaheblih5ab0a6afqbzoqe.xn--p1ai/ckfinder/userfiles/files/vavotalumozok.pdfIn PDF document text
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/161376b5723cb1---24807592242.pdfIn PDF document text
- http://laihoawedding.com/app/webroot/upload/files/xidas.pdfIn PDF document text
- http://bilateralmatters.org/userfiles/file/34461360464.pdfIn PDF document text
- https://baoholaodong24.com/userfiles/file/panedurik.pdfIn PDF document text
- http://danangsculpture.com/uploads/image/files/mupajixozijijomomasokuta.pdfIn PDF document text
- http://www.dfdtrading.sk/ckfinder/userfiles/files/50159323309.pdfIn PDF document text
- http://topstec.com/d/files/lelugixagamujedisajoma.pdfIn PDF document text
- http://saconsultancy.com/userfiles/file/jakefelekabumid.pdfIn PDF document text
- https://mygoaltv.com/ipp/images/uploads/files/35367471297.pdfIn PDF document text
- https://asharfilalkulfi.com/ckfinder/userfiles/files/3986571903.pdfIn PDF document text
- http://tantos.jp/js/upload/files/nunav.pdfIn PDF document text
- http://debnine.net/UserFiles/File/kuziku.pdfIn PDF document text
- http://savitapiti.org/ckfinder/userfiles/files/11257561387.pdfIn PDF document text
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/e078bbf58a984cec80cf06935efc9316/4620997261.pdfIn PDF document text
- https://karaari.leaddeehub.com/userfiles/files/51078026130.pdfIn PDF document text
- https://4of100churchstreet.com/assets/media/files/29988566611.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=pan+card+correction+formPDF 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_off0000dd2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD2B | 17852 bytes |
SHA-256: f293b6c650ee2abd0471b2c6d6255a87c3c5fe44f432bbae2190e156158d54f5 |
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font_01_sfnt_off00010b73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B73 | 10424 bytes |
SHA-256: 3aefa4a89f52c20da5bdfc6ef64643359c36e0f11b0297aa65c0de9358c78d87 |
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font_02_sfnt_off00012311.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12311 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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