MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1204.002 User Execution: Malicious File
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains a link farm pointing to numerous domains, some of which are associated with compromised CMS uploads, and also employs a callback lure. These elements strongly suggest a phishing or scam campaign designed to redirect users to malicious sites or engage them in fraudulent phone calls.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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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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://huntic.ru/uplcv?utm_term=get+android+tips
- http://flyingwedge.com/uploads/assets/file/43367144519.pdf
- http://asesoriazabalburu.org/azaba/files/file/vinibena.pdf
- http://rioairporttransfer.com/ckfinder/userfiles/files/6957605722.pdf
- http://wideanglepackaging.com/ckfinder/userfiles/files/35078033333.pdf
- http://www.kymenhome-etsinta.net/tiedostot/files/20132354133.pdf
- https://hse.tw/upload/file/sogilaxoxojifejuvoxurores.pdf
- http://neonatal-surgery.ru/userfiles/files/70337863352.pdf
- http://emeat.ru/var/files/vugodumizikutugujeg.pdf
- https://www.loisirs-auto-occasion.fr/ckfinder/userfiles/files/25620961004.pdf
- http://hansungidschool.com/userfiles/file/majezonizutoxedaturewada.pdf
- https://dp-engineers.com/admin/userfiles/file/51962008624.pdf
- https://sportyou.fr/ckfinder/userfiles/files/9737312592.pdf
- https://net-mex.hu/ckfinder/userfiles/files/vukofijatu.pdf
- http://goksirkrupskimlyn.pl/img/upload/files/fosafaninomati.pdf
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144f7965753a---nofemepirolilopikiw.pdf
- http://tischlerei-schlusche.de/sites/default/files/file/23167833552.pdf
- https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/183a517b7a24f92b96e57657b5eb8522/titilozatuxunidezulugajas.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141f48d61d4a---73236616200.pdf
- http://xn--b1amishc2fb.xn--p1ai/ckfinder/userfiles/files/13742227854.pdf
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/cd08ca4429801e0f540635bc65a90ffa/38201371283.pdf
- http://physio-praxismitte.de/userfiles/20640520789.pdf
- http://globalsublimation.net/uploadfile/files/20607159057.pdf
- https://mgrenginiai.lt/ckfinder/userfiles/files/35647179413.pdf
- http://djarkitek.com/temp/vinney/HTML/userfiles/file/vofarununelajuwomowerom.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_off0000e848.bin5434b54de14ab2a04e4f23ad3c5d5ba81af409842d5698ec8e83f1f49a24a1c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE848 | 17296 bytes |
font_01_sfnt_off000114e4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114E4 | 16792 bytes |
font_02_sfnt_off00012cfb.bin47a8969bed404a1acdc9f173cc0a280e435cc94401f50108dfe2f2db9e887c45 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CFB | 10376 bytes |
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