MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to compromised CMS uploads and disposable hosting, likely for phishing or malware delivery. The presence of multiple external URIs and the 'QR-code redirect lure' heuristic suggest a social engineering tactic to trick users into visiting malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://garglob.ru/uplcv?utm_term=wansview+ncb541w+qr+code
- https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/mh23vlditjhc7268l2brmuo6et/tutabaxi.pdf
- http://brukbet.com/user_images/file/dinixatabapuja.pdf
- http://berkeleyhigh64.com/clients/9/99/99a482d4bd0dc5522cc24ea7f8204a07/File/26596197510.pdf
- http://www.toptehnik.si/images/ludetala.pdf
- http://aceonlinementors.com/userfiles/file/90356153404.pdf
- https://cortemadera.com/wysiwygfiles/file/nigaxejixubava.pdf
- http://shqinze.net/admin/upimg/file///govapadopola.pdf
- https://actorconseil.com/files/file/5723977728.pdf
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088a1f8d1820---piniwimil.pdf
- http://9meclinic.com/ckfinder/userfiles/files/84635891901.pdf
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c92d5b7648---77259721349.pdf
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/586099742503b25e32ca2fc59683df27/20813894628.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb2a4a2ab2---25391103035.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606c97d04c044---63657423959.pdf
- http://ghalemdi.com/userfiles/file/voxobasax.pdf
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/k5rl50fdjvtaslj95jvfjglmi6/dodedifuvuzi.pdf
- https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608018b928c06---migakinimipafulib.pdf
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16080dca4b2bae---wifasedajarisadej.pdf
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096012f02571---dadipolaxejepo.pdf
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0ff077e8a5---kagofedevojunijekusukovis.pdf
- https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087e488d2fc5---wibar.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_off0000f18c.bincca18fe621335cd5f2d2b09f74526c343f3397821d6b04bc0dbfc336d0447d85 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF18C | 17588 bytes |
font_01_sfnt_off00011fb3.binfa840bb9306ce015479a6d8977fa196115a06f4b445bee4143c248d84f12cbb9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FB3 | 10912 bytes |
font_02_sfnt_off00013915.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13915 | 16792 bytes |
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