MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file containing embedded JavaScript, which is a common technique for delivering malicious content or initiating phishing attacks. Several heuristics indicate that the PDF links to compromised WordPress sites, suggesting it's part of a link farm designed to distribute malware or lead users to phishing pages. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/6ffef735b0128348b2f86124a7c2b30e/xegilawadifimagotumuxet.pdf
- http://1970lions.com/clients/5/57/57eb30a5877ba0c7834658d164206012/File/virarelubujifezegawapad.pdf
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/160030b06ea43824bad8b0690ef9c587/68574840560.pdf
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/5528d4258ccec75a29e221ff5bb0f7e9/21145653760.pdf
- http://recviem.ru/img/upload/75789926207.pdf
- http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cf99fa1145---dokawa.pdf
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/9bccee0547bcce45dd16c696256609e8/12942623890.pdf
- http://gocreate.termall.pl/upload/fck/file/xerozabe.pdf
- http://xn--90aoj0agf7cq.xn--p1ai/uploads/files/13578102577.pdf
- http://www2.grupoksl.com.br/js/ckfinder/userfiles/files/98770856161.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a8183e772fc---76709206201.pdf
- http://livingkaneohe.com/userimages/zaxokuwunugi.pdf
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/854f632a1f414933b1c4077dd018217c/xigubofowujabodiwu.pdf
- https://e-fasteners.eu/media/file/mojerarazovukumirobutotel.pdf
- http://diysmart.net/userfiles/file/mipesupimanogelepuxefu.pdf
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/2596npuidnsu80rklimvpc3ik6/7602391192.pdf
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160775d9c3c744---36097657754.pdf
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/fc31b1932384d357d22de237fcf5134c/97974683787.pdf
- https://tecnibat.net/uploads/archivos/82665719339.pdf
- https://nakipoglugroup.com/upload/ckfinder/files/97340279681.pdf
- http://waukeganeast1980.com/clients/877304/File/zawitazuzakaxifotofetumur.pdf
- https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/josuo6njqj28arrkop121buq39/35475260774.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1610b5c964d583---xobepasudewanunux.pdf
- http://thienthaopc.com/upload/FCK/file/35981705269.pdf
- http://cesmclassof68cheyennewy.com/clients/82478/File/kivopimedajusoxuxukanu.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=tropico+de+capricornio+mapa+argentino
- 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_off000112c9.bin9abff99aaee7bdbe1d7c7dca859cb2f5c6c677d1b44ea0ce38941325318240d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112C9 | 10604 bytes |
font_01_sfnt_off00012abf.bin5f4328b58e7c87bae2260c94461df61fe5af6654d38eb482d073e29711929e28 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12ABF | 21520 bytes |
font_02_sfnt_off00015fed.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15FED | 16792 bytes |
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