MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript, which is a common technique for delivering malicious content. The numerous external URIs, many pointing to compromised CMS uploads or disposable hosting, suggest a link farm designed to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate a phishing or trojan payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9907
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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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://nomylo.ru/uplcv?utm_term=how+to+connect+moko+keyboard
- https://netwindowvn.com/uploads/userfiles/file/borodi.pdf
- http://polymer-optix.de/userfiles/file/tolefipimijozufiroxixo.pdf
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609a3352e8e50---54862898696.pdf
- http://bighost.vn/uploads/userfiles/file/49127627432.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/c27e1c70b19ee66818a9483e006d9188/85774268131.pdf
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/160e8c889a6977---mopikitemedoninokajogedi.pdf
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/12e833ef71f17bef5133200ee91d04c4/koxunuxefasulojefasu.pdf
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/05275402b0c1609af6a75af3802e24dc/buzaw.pdf
- http://anhuifan.com/upload_fck/file/2021-5-1/20210501214914563842.pdf
- https://www.adom.biz.pl/ckfinder/userfiles/files/2887655410.pdf
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160f0cdb0045d6---mutinafufemenokivofobak.pdf
- http://www.creativitaecomunicazione.it/js/lib/ckfinder/userfiles/files/28488892745.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160944c1f2c171---82149792723.pdf
- https://simon-daulte.com/ckfinder/userfiles/files/bexiruziguv.pdf
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/kotobitedibuwuxevobilovu.pdf
- https://bda.ch/ckfinder/userfiles/files/50663686971.pdf
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/28nnavr2fu28ktnbc50h7e0hsu/8512043802.pdf
- http://macro-e.com/app/webroot/userfiles/files/nalemo.pdf
- https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/0e735b7b8abf3c867ce164c809f37f06/worevap.pdf
- https://amoslodge10.org/ckfinder/userfiles/files/15762108984.pdf
- https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/ie9k08ho19m8bj1tefgspi69f1/20307768662.pdf
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606c72fb82827---sezasitej.pdf
- http://agcslohian.com/userfiles/file/tufuxesemafatuxusaga.pdf
- http://bjhtdszdh.com/v15/Upload/file/2021614722444432.pdf
- http://gesundezellen.de/neu/userfiles/file/womenatumijo.pdf
- https://securitydm.rs/slicice/file/98814048483.pdf
- http://cnmrobotics.com/files/files/tudefuketuto.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010002.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10002 | 16792 bytes |
font_01_sfnt_off00011819.bine73690fa9c0fbcb4b4caf48e114adf17c90f57509d00f6b3211ae5d9ef40b647 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11819 | 10648 bytes |
font_02_sfnt_off0001307c.bin3317e872ad06295b27d1b853cf06a3698c69153b8416a2f9ee961baa984bc6ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1307C | 17404 bytes |
font_03_sfnt_off00015def.bin72bda604c77ca771a1a14ee35dc8ff354b9f00ec81e947fe844e91f3a29209ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15DEF | 1684 bytes |
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