MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file containing embedded JavaScript, which is a common technique for exploiting vulnerabilities or delivering malicious content. Several heuristics indicate the PDF contains links to compromised CMS upload storage and disposable hosting, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the execution of embedded JavaScript to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 8
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://ukdirectremovals.com/wp-content/plugins/super-forms/uploads/php/files/287e6099b22e5778cbec635dcc0d9e91/tidafadatanaken.pdf
- https://samowar.ch/upload/file/kivafalazolodivofigiwu.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afdfe51fde4---mamovasanenuv.pdf
- http://studiotecniconuti.it/userfiles/files/fusibegufokixujadivab.pdf
- http://anupbolivia.com/images/files/81719804639.pdf
- http://wsp.pl/userfiles/file/kepazuwelotibasotidalik.pdf
- https://gamasteel.net/userfiles/file/89956058048.pdf
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ba1aaa1f1f---lujubevelesasep.pdf
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c898ab257a---tiwuregojiki.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/88a34412a34f0c2c644798f2d0623caf/60665250676.pdf
- https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/1c3c5c5996a3d158dd3a43b0c21a0227/85688042172.pdf
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/sol1nool2f75ao89gfvt486009/vepesoteteni.pdf
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160cc1fee54eaa---pisudawexowavurimuroda.pdf
- http://classiccar-jp.com/js/upload/files/74888354270.pdf
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160850416c6ed3---rafamaref.pdf
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d64b9e4e99---deboduweronefixag.pdf
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/2n131cmmod2sov1r1u8u6qfrcq/8151129334.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aff8f26ac72---boluvibovogemev.pdf
- https://upchealth.net/wp-content/plugins/super-forms/uploads/php/files/4cd0f06a36a02f2074a3b85ecb3df932/visikijekim.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf2e440b039---zexolurin.pdf
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/pe8pu1cp11q60en8jiaj7spit8/47928529768.pdf
- https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/c7f220fa5b3d46fa6061bf2d2ef6a7d7/8568027972.pdf
- https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160942280dfc6b---36145497425.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=thank+you+for+sharing+your+details
- 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_off0000ee2f.binfde6f284088013dafbdc52deee40a79d6ee5cc68c4fba959298c2b0c27c08915 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE2F | 18132 bytes |
font_01_sfnt_off00011c85.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C85 | 16792 bytes |
font_02_sfnt_off0001349c.bind2e8857984f3babc5eb0b0bf06f2e11ccb3f98193bc4c923d13f769362701555 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1349C | 10900 bytes |
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