MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous links to external PDFs hosted on various domains, many of which appear to be disposable. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests a link farm designed to distribute malicious content. The ML classifier and ClamAV detection confirm the malicious nature of the file, likely serving as a lure for phishing or malware distribution.
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://elateridae.com/images/FCKeditor/file/xobutawobunifabonel.pdf In PDF document text
- http://www.taxivanclass.com/uploads/ckfinder/files/zesefutijojuw.pdfIn PDF document text
- http://instalace-charvat.cz/userfiles/file/ginavupureramuwa.pdfIn PDF document text
- http://mea-travel.pl/userfiles/file/taladerezuboxixeradu.pdfIn PDF document text
- http://enewind.com/pliki/file/sopopulojenofunanulaba.pdfIn PDF document text
- http://dieutrimun.myphamkangnam.vn/webroot/img/files/murexewerugesika.pdfIn PDF document text
- http://cuborh.com/natelinhanew/js/ckfinder/userfiles/files/madoka.pdfIn PDF document text
- http://aotwcasino.com/ckfinder/userfiles/files/68443034973.pdfIn PDF document text
- http://zwickerfoto.hu/_user/file/27142415123.pdfIn PDF document text
- https://habibitours.com/ckfinder/userfiles/files/30091996231.pdfIn PDF document text
- http://tivatijapan.com/uploads/userfiles/file/90913389851.pdfIn PDF document text
- http://pwmtqatar.net/userfiles/file/gokimenolomuvurileguboniw.pdfIn PDF document text
- http://imdad-egypt.com/userfiles/file/dumilagubidofevumiwo.pdfIn PDF document text
- http://geometracosentino.com/userfiles/files/pogujasenedovikur.pdfIn PDF document text
- http://skupka54.ru/upload/m/wanalonogozozagemoduje.pdfIn PDF document text
- https://vico-real-estate.com/ckfinder/userfiles/files/64666399349.pdfIn PDF document text
- http://ambulatorioveterinariosanfrancesco.com/userfiles/files/58330847375.pdfIn PDF document text
- http://abnig.friendship-match.com/upload/files/10406301266.pdfIn PDF document text
- http://fittbikese.hu/files/file/67487094656.pdfIn PDF document text
- http://archissimo.eu/userfiles/files/26129523457.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/16140ed51789b0---dexexanotewolowazi.pdfIn PDF document text
- http://copingconversations.com/userfiles/file/burugiwugiri.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141db1f0b349---lolizikifejenuf.pdfIn PDF document text
- http://agro-norwa.pl/userfiles/file/80831531653.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=sito+per+scaricare+applicazioni+androidPDF 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_off0000dcff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCFF | 10644 bytes |
SHA-256: 682f22d6602768ee55b2d25cfa617e44f80f4f424c1542d970b39d042dffcbfe |
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font_01_sfnt_off0000f57b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF57B | 17208 bytes |
SHA-256: d8ff6919efb778113e583e7ffa123a663d666c6456c033e67a3f02c62ef2bb59 |
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font_02_sfnt_off0001226a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1226A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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