MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links to potentially compromised WordPress sites and disposable hosting, indicating a link farm designed to host malicious content. The 'SE_CALLBACK_LURE' heuristic strongly suggests the document's purpose is to trick the user into calling a phone number, a common tactic in callback phishing and tech support scams. Although no scripts were explicitly extracted, the presence of external links and the callback lure point towards a phishing attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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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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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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://cructi.ru/uplcv?utm_term=hawker+charger+manual
- http://alexlunacoach.com/img/editor/file/tofitidoxejisesa.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609950e44e712---sakoviguzurixakiti.pdf
- https://apoiotelecom.com/imagens/img_fckeditor/file/50436072270.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/5c3715cc3b0dc13ff27b25d160a2c3d8/komibe.pdf
- http://spreewaldatelier.de/img/editor/file/mudewadeviwozotapeba.pdf
- http://matsonconstruction.net/userfiles/file/48522699861.pdf
- https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/c2d713962e57fe20785a44e256ff9126/8556756537.pdf
- http://giacongcomposite.com/upload/ck/files/nosobavimaz.pdf
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/e74e9ab66de7d55666853b1692bb278c/najevewu.pdf
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/j1vo92ivfjssmr9mlcr632q7hr/xogiveninufikogisuxukagu.pdf
- http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607d57f9bad10---pumeti.pdf
- http://hocikto.info/userfiles/file/52900830511.pdf
- https://raljob.com/userfiles/file/14706871200.pdf
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160828a558736f---tudixikexapomexemabod.pdf
- https://diaspoassur.com/wp-content/plugins/super-forms/uploads/php/files/eca3325b5fb1038a97dcbcb004779b86/govafarolerajojirizoz.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_off000118fe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118FE | 16792 bytes |
font_01_sfnt_off00013115.bin73f45968418beb8da193116931227fdba2301b4382b6348bdf953e966be52a8c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13115 | 10468 bytes |
font_02_sfnt_off000148aa.binb6b026fc8c9cd591bcaf2355929f617ea976cfd35830a709471a0261a79003e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x148AA | 18612 bytes |
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