MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
T1553.005 Security Software Installation
This PDF document exhibits social engineering tactics, including urgency lures and instructions to disable security software, consistent with ClickFix attacks. The document likely aims to trick the user into executing a command, such as 'the required operation requires elevation', to bypass security measures and download a secondary payload. Multiple URLs hosted on compromised WordPress sites suggest a link farm distribution method.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 9
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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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160886e1fbe81d---63599713833.pdf
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/160798d9f9404e---karuzatowop.pdf
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ea1c1a9a2f---kukivurexoparaz.pdf
- http://kwong-cheong.com/userfiles/40175952817.pdf
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/eb2955e897ca786a3b4fe815e895716e/26719776399.pdf
- http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf1fa18afcb---68580462026.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608da7f4846a2---87251850177.pdf
- https://marljivo.hr/userfiles/file/sifeweputopebilasapan.pdf
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b9abf689853---71257693615.pdf
- http://houstontca.org/Content/uploads/files/latezalezemes.pdf
- http://www.vako.vn/app/webroot/uploads/files/ximikojukobufikoj.pdf
- http://imreelectric.sk/uploads/file/magisalevajogosuru.pdf
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/75e2aeebaf6f3aac63c90bbdb6069886/10444868246.pdf
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e2201015bd9---zujupoli.pdf
- http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/tufuluvo.pdf
- http://vdadanang.vn/app/webroot/assets/files/sagatexu.pdf
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/f9263dc1cecf412f3914589435a7193a/52632689777.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/cb4e8b09159b75b4796eaaf2eacbd1d5/46425543361.pdf
- http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/00uqin1qko1gqu06p2v647ndi3/68374395363.pdf
- https://aduanaldelvalle.com/userfiles/file/34453655735.pdf
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160a34d7acd73e---juzemajulogurowab.pdf
- https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/1bb94b40c8fdec50a5a16fb9a412e25c/zodawi.pdf
- http://btc-ltd.com/upload/file/rujexufupurebotukaj.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=the+required+operation+requires+elevation
- 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_off0000dbc9.bin32f68c9f80a9f7d303b961e40408205ed9f60f8cf461074011334c0a3db62039 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBC9 | 10764 bytes |
font_01_sfnt_off0000f448.binbdf28c0e6acbefa79451a8589863d72cd472178218b0b8490d35726651ce1bba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF448 | 17128 bytes |
font_02_sfnt_off00012146.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12146 | 16792 bytes |
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