MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. The presence of multiple links pointing to potentially compromised WordPress upload directories and other disposable hosting services suggests a link farm designed to redirect users to malicious sites. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing or malware delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://adamlegal.com/userfiles/file/vubeteropivinerakudowafi.pdf
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/79b3d39b296a58b7bedb5a9f55dd71c7/pimevajazezozez.pdf
- https://avvocatoboretti.it/file/tafigufasi.pdf
- http://altelaw.com/uploads/image/file/45928127328.pdf
- https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078fac29c982---24867321882.pdf
- http://linkingpeople.info/userfiles/file/zovefewizi.pdf
- http://sam-global.info/files/file/juvosajefofojanibanopa.pdf
- https://csp-pub.com/stockages/files/46623973175.pdf
- http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/gebogumu.pdf
- http://xingyeknitting.com/userfiles/files/dupiwovamafemuxexolevofu.pdf
- http://vizit-k.net/uploads/editor/files/zubot.pdf
- http://luckdidea.com/ckfinder/images_store/files/86062542368.pdf
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/f7848e4b18aa96193bc2d922da476589/fagixuximodazige.pdf
- https://sardavetri.it/userfiles/file/kinevakuwitusa.pdf
- https://ustunbilgisayar.com/userfiles/files/50765574129.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16113a82ee712c---lurazuwo.pdf
- http://alpinedelhi.com/userfiles/files/xulawonutakuna.pdf
- http://artside.org/data/temp/file/37409325529.pdf
- http://gunjanjain.com/app/webroot/js/uploads/files/99156522079.pdf
- https://briljant-maleri.se/UserFiles/files/serujupukoses.pdf
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/kudalakuxez.pdf
- http://jshtextile.com/UserFiles/file///dipimoxulujufamidinaje.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=his+mistress+with+two+secrets
- 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_off0000c115.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC115 | 16792 bytes |
font_01_sfnt_off0000d927.binf886a68924f18e97dd65bc6f6e2885b0f2a9311323034a920dcf23eed7ee7017 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD927 | 16556 bytes |
font_02_sfnt_off000103a5.bin3955f8246212434753ffd784d8d631f64ea28f4e432ddbde0e15a7a2c56f9608 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103A5 | 10260 bytes |
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