MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a link farm pointing to compromised CMS uploads and disposable hosting, suggesting it's designed to host malicious content or redirect users. The 'SE_CALLBACK_LURE' heuristic indicates the document likely contains a phone number to trick users into calling for fake support or billing issues, a common tactic in phishing and tech-support scams.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://ketchas.ru/uplcv?utm_term=signal+butte+animal+hospital
- https://ahreco.com/uploads/news_file/jupupa.pdf
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ab27d18587e---jamow.pdf
- http://clairerolo.com/userfiles/file/lararedeg.pdf
- http://altaprecision.com/userfiles/file/gigedumixebu.pdf
- http://willbramephotography.com/gegutelolel.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/337f165101283a052b0129608cac707b/77805872023.pdf
- https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b3fcdf5cdaa---lewubeso.pdf
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/e97f3d8d434f14038b1ff24f3025787d/375986538.pdf
- https://corghialberti.it/file/51412068831.pdf
- http://tanabuauto.com/js/upload/files/redaw.pdf
- https://infoenergie-loire.org/userfiles/file/nebawadefixuzif.pdf
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/071fdf4ec211c5c868cebe0dbd5a1db4/mobagajoxutel.pdf
- http://al-bandak.com/userfiles/file/7923589105.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/7585834fa032f63f6b96931daaca1747/45000659942.pdf
- https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/2conl6c7jkklqsa1hps76lsea6/44510398467.pdf
- http://tischlerei-schlusche.de/sites/default/files/file/32045029436.pdf
- https://audit-advisers.com/userfiles/file/44853344449.pdf
- http://i-daa-wl.de/userfiles/88641600718.pdf
- https://33mobility.net/uploads/files/sipaxufoma.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_off0000db10.bin8d716a691f5aa26fa5b92076e408c222f9190531bc89d0943f5cca3e3653f917 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB10 | 10912 bytes |
font_01_sfnt_off0000f3e6.bin1767432610b764c88005fbbfbd42e9b33f13f810a00254417b1a363e21c47c72 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3E6 | 17532 bytes |
font_02_sfnt_off00012210.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12210 | 16792 bytes |
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