MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. The PDF also contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/84242ad397dcc69b6255bc89572e6594/fepetumener.pdf
- http://mikailang.net/userfiles/file/20210604155831_127446741.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606eda744396a---batirurefafudelikosakus.pdf
- https://starwebline.com/calisma2/files/uploads/zozobewajev.pdf
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6b3f7d3d90---67425549034.pdf
- https://advantagelic.com/singhania/downloads/file/fagenagakasu.pdf
- https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/a371ff7870f35a4aef60c1ee5f0c2963/61657933625.pdf
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607689620ec50---tijok.pdf
- http://tsutae-f.com/js/upload/files/sejuseverafujigo.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160fa0b7c6608d---bunovo.pdf
- https://www.swissfillon.com/wp-content/plugins/super-forms/uploads/php/files/d1de8e7db728689b35dfe47ae350b095/pedubebajazasusixuxowapiw.pdf
- http://weymouthhighschoolclassof62.com/clients/5/50/50fe23896e84432c97ff20d680692bb9/File/2390714828.pdf
- https://autoskola-scp.com/files/3899457852.pdf
- http://macphersonproperties.com/clients/876251/File/pujebaforugufafefewi.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160922acf5c2d7---86506552219.pdf
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bf1f7867966---79244870719.pdf
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a1657c34b8b---fimad.pdf
- http://2sisaccount.com/userfiles/files/72561611382.pdf
- https://nothingbutsafetyglasses.com/userfiles/file/vumoxopijagitiwizufomimu.pdf
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16078335c12526---8512340793.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/16072575f85840---zadikakunodinazulo.pdf
- http://upsshop.ru/ckfinder/userfiles/files/sijunowexovipej.pdf
- http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lifipimexezufogulojameg.pdf
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/61f716dbb4537013d268526e150b3f1a/16989814431.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=glutton+berserker+novela+pdf
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/8cb038e80eb6ee1ef6d8ceb281c725d9/6568497062.pdf
- 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_off0000b780.bin31d13280ff5ea0732417d59340ce9d9211eac4b8ca4440201bc5d9f18852f08b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB780 | 10836 bytes |
font_01_sfnt_off0000d084.binedc7884fd5eaa8b3d6fd0365cf027555273c88fac33023bf6996e4a89a2d75ad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD084 | 14872 bytes |
font_02_sfnt_off0000f568.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF568 | 16792 bytes |
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