MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, forming a link farm. This suggests the document's primary purpose is to redirect users to malicious or phishing content, likely delivered as a spearphishing attachment. The ML classifier and ClamAV detection strongly indicate 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 farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://kajo-frings.de/userfiles/file/nisemawurobilunizujokuno.pdf
- https://indoshaolinkungfusociety.com/ckfinder/userfiles/files/1971467099.pdf
- https://acavacecio.it/userfiles/files/buzusan.pdf
- http://rdmsrl.it/userfiles/files/jofevajobimojaxuxet.pdf
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/3863260c18e1ac442e7520899a1586a0/ziwizoj.pdf
- http://interfacetravels.com/app/webroot/js/ckfinder/userfiles/files/fewasopesugetukatobomu.pdf
- http://www.sport-konyv.hu/userfiles/file/84907374938.pdf
- http://skkouty.cz/ckfinder/userfiles/files/raxitolexuligefukoda.pdf
- https://castel.ro/userfiles/file/15490594315.pdf
- https://ewt.cz/res/file/22588429518.pdf
- https://cissud.com/uploads/ck_editor/files/57087087768.pdf
- http://shinex-auto.com/userfiles/file/jogoberelemaki.pdf
- http://www.pattyn360.com/upload/forum/files/zofidej.pdf
- http://3qlohas.com/CKEdit/upload/files/numuxox.pdf
- https://mamap.in/ci/userfiles/files/50001012612.pdf
- http://hitecds.com/userfiles/file/86049212313.pdf
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/qp8a2q9mihd6tohcvl1see6h3m/bofivuzovabivagunudak.pdf
- http://www.sictombbi.fr/ckfinder/userfiles/files/kasuxekugipokoj.pdf
- http://offerseir.com/basefile/offerseircom/files/duvupezuxax.pdf
- http://balalajka.nu/media/nejakesagepinosovupifum.pdf
- https://washlounge.in/ckfinder/userfiles/files/20903288118.pdf
- http://epoptavky.com/is/images/FCKeditor/File/dodivok.pdf
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/b47d6e6a5125354dd2f9a7e7104f1d86/robejoresixujenusex.pdf
- http://canshu.dlzj.net/upload/files/20210908203052990907.pdf
- https://torgradio.ru/new/files/file/98490160349.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=codigo+android+test+touch
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e2ad.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2AD | 16792 bytes |
font_01_sfnt_off0000fabf.bin4d1f71c4d72066b137881764209f3871c1b3ae116e0cf2903b246d6f79c83e2b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFABF | 17844 bytes |
font_02_sfnt_off000128ce.bin6ebf91889568ca5781be9b10e44d1494274d3c508ea3fb48d8f34a7144cecf62 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128CE | 10736 bytes |
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