MALICIOUS
224
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. Heuristics indicate it functions as a link farm and specifically targets recovery secrets or private keys, suggesting a phishing or credential harvesting attempt. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 8
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Recovery secret / private key request critical SE_SECRET_RECOVERY_LUREDocument requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
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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.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/6uacpidabt0in887jti81ph9b3/85657489373.pdf
- https://tidaksusah.com/contents//files/feferidavonewuganu.pdf
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f3446121f9---31432627608.pdf
- https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/f1b741a839a8760764d996e6de63cefb/batexesedafetop.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c0d1922d602---wijuvesamumixujibunagog.pdf
- https://myphi.biz/nbloom/fckuploads/file/87482038777.pdf
- https://hijaulumut.com/contents//files/25603234898.pdf
- http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/6d943ebea564f8f2f69584d03974eea8/wazukevivejireneg.pdf
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/16073e959e25ae---52531254533.pdf
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/c469adbfdf03a8aea45db1109858e4b4/fowisawabutapulobaze.pdf
- http://nirmalapublicschoolerumely.com/userfiles/file/63177798404.pdf
- http://hiace-yoshikawa.com/js/upload/files/63999235108.pdf
- http://sherwoodchambergolf.com/ckfinder/userfiles/files/jufefakikazexiketusugod.pdf
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/82bf0b72f452ea600f582c6f2e0917ee/65322278209.pdf
- http://barcelonasixtytwo.com/userfiles/file/86889969734.pdf
- http://hnysft.com/d/files/notulofemav.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/966ef06ac0743b8b1ce59d25ef335e67/mopatesomasowo.pdf
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/16070f96fc9c10---97339675248.pdf
- http://innotec-industrie.be/userfiles/file/90646891640.pdf
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098697a7a9aa---fuvanipiteluwadetadiwoza.pdf
- http://thanuyentea.com/ckfinder/userfiles/files/wadarerurad.pdf
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/30cfd210a4b9ae1aea322778470643b7/pezegunimozedajibojaje.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7aa748916---sukiregikarafajilarimi.pdf
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/c64jalbchjg185btqr3n8aa02t/9504395916.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=cciso+exam+questions+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_off0000e8d2.bin1a6a0d3039818a292bbd7a58c159ab40afada66c9a01f477c967f5e555b08158 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8D2 | 11016 bytes |
font_01_sfnt_off00010243.bin2abb30b2b8bd13117515574b062d00c5857f4c53411802e25a9109ada51737cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10243 | 16440 bytes |
font_02_sfnt_off00012cef.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CEF | 16792 bytes |
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