MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The sample is a PDF file that contains embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. The PDF also hosts a link farm pointing to compromised WordPress upload directories, suggesting an attempt to distribute malicious content or phishing pages. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://birons.net/wp-content/plugins/super-forms/uploads/php/files/f2a9f287953c8256062154bc4884d2ed/bafopinadoleso.pdf
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8ca83dc0e---65787330504.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/9r23mkptmm1133oamaedi4lk62/42613124156.pdf
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/dc307e33373cb9086e5a85de03d26427/59116947684.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/en3q0b76i6cg9m26gujfrpq9e1/78112444415.pdf
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/64175054d32f2d5c7260cc877ca5b6bc/budiresunosifudowoxelus.pdf
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/qm2iqj8lg2l5a8otea8b3a0nba/93457963431.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/c9cc2c93d0b5310edd8fce830dfe9b51/61290056772.pdf
- http://sampsonancestry.com/clients/d/d9/d9bd9208c4e45de01aa31840e3a8c66b/File/27339958435.pdf
- http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c2ecbed2ea5---duxozuzaw.pdf
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/91383180558.pdf
- https://kede.org/userfiles/file/12409447663.pdf
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/c3vrmideob4jta6oj3mk98krjp/kabifusokoruditakigote.pdf
- https://n-zvuk.ru/upload/file/60224344066.pdf
- http://curry-box-deluxe.de/userfiles/file/wotigebajew.pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079d743e1380---xowosibujokulutatezorigeb.pdf
- https://alkalacarservice.com/public_html/userfiles/file/ruvuxesedijiwozazatafeg.pdf
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ded1ddd106---gelomejasosukizij.pdf
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093e0be5e465---giviwofufifinipogubinafax.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608744f7e2289---wilubivuvawoladejezapawe.pdf
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607791ced3482---jujarimopirudagamajokid.pdf
- http://angelcabrera.com/FCKfiles/file/16258069059.pdf
- https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a7609512722---detatokalir.pdf
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/oj0hlrcqno3ffed5v937ciuro9/77440562082.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=zaphod+hitchhiker%27s+guide+to+the+galaxy
- 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_off0000fbc7.bina00bf175f1a0945b915fb5536aaef1e8c101a41c522b99290501f062e3aaa28a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBC7 | 11092 bytes |
font_01_sfnt_off000115bc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115BC | 16792 bytes |
font_02_sfnt_off00012dce.bin99d251d600ddbbc6762f9c6d8a7cfabc07c135f2bc286183b0c90b60d9febc71 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DCE | 17360 bytes |
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