MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic indicates the document instructs the user to copy and paste content into a command-line context, a common technique for executing malicious code. The embedded URLs point to various compromised or disposable hosting sites, suggesting a link farm used to distribute further stages of the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9780
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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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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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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 http://aibasylhet.edu.bd/app/webroot/ckfinder/userfiles/files/83566407693.pdf In PDF document text
- https://procogs.com/FCKeditor/file/6128108049.pdfIn PDF document text
- http://mskgroup-spb.ru/upload/file/kowuvolesubunokinetabipem.pdfIn PDF document text
- http://crocepadrekolbe.it/userfiles/files/wopobarowesejun.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161323b98b3a3c---37179483661.pdfIn PDF document text
- https://cs168.tw/upfiles/editor/files/13924154374.pdfIn PDF document text
- https://108pizza.pl/uploads/userfiles/files/sulatemomenokegowigonu.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16131b4c702d07---21970055195.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/7a9d02d9b59a71d391fc835dc5eb2831/jinuf.pdfIn PDF document text
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/a4b6244cb923df922cbc69dac1e86cc5/tudode.pdfIn PDF document text
- http://skrutit-probeg.ru/upload_picture/file/wunelojog.pdfIn PDF document text
- https://dsverano.com/UserFiles/File/bikenavifenis.pdfIn PDF document text
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161340b03bb779---2427490939.pdfIn PDF document text
- https://srccaa.bdbabymart.com/app/webroot/ckfinder/userfiles/files/49655618119.pdfIn PDF document text
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/ls26p5rbarj1h8cl4fs0eim206/jaxamemumef.pdfIn PDF document text
- http://www.deco-interieure.com/userfiles/file/9976287643.pdfIn PDF document text
- https://wedding-photos.cz/userfiles/file/kegaxis.pdfIn PDF document text
- https://triyoga-tv.ru/userfiles/file/votefigaseboka.pdfIn PDF document text
- https://luckysurface.itweald.com/uploads/files/6138377610da8.pdfIn PDF document text
- http://hpworld.hu/data/pic/Image/file/divilofulepini.pdfIn PDF document text
- http://futuralagoparking.eu/userfiles/files/pibozomamifuriloboxete.pdfIn PDF document text
- http://ville-dammarie.com/ckfinder/userfiles/files/vixagivexodugojixukiboxos.pdfIn PDF document text
- http://fra2ange.it/userfiles/files/95681071009.pdfIn PDF document text
- http://cukiernia.eu/upload/files/74871663260.pdfIn PDF document text
- http://xn--pr3b03lcdvwu9dpynqkc.com/DATA/file/20210905204438.pdfIn PDF document text
- http://pc580.cn/upload_fck/file/2021-9-4/20210904230505601242.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=download+windows+10+64+bit+iso+gptPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d35d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD35D | 22032 bytes |
SHA-256: f46e39afc2d6c38adcbc00578c70eb8bf2c292ad67508e306ddba4492a5cc3b2 |
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font_01_sfnt_off00010c85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C85 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001249c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1249C | 10980 bytes |
SHA-256: 933ae571dbe3aee06b4c7e2518a2047ea2be55b09c8f9ead8eedf4b2fac8a11b |
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font_03_sfnt_off00013ddc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DDC | 1820 bytes |
SHA-256: ef4c56b83544acc0eae329b123dcb13384a4443b8ee25b6b011fcec9f25c534c |
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