MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF that contains numerous links to external websites, many of which appear to be compromised CMS uploads or part of a link farm. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic indicates the document may instruct the user to interact with the command line, suggesting a potential for further execution. ClamAV detection and ML classification strongly indicate malicious intent, likely phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://adamlegal.com/userfiles/file/dezinafibilarujigisubaj.pdf
- http://artistalexanderkanevskywinnerinternationalaward.com/clientMedia/file/61308004402.pdf
- http://autobedrijvenindex.nl/images/uploads/23973490921.pdf
- https://gyandeepjkss.org/userfiles/file/94857540952.pdf
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d73798bf590---23998679758.pdf
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/bc63e1af88d325d9ab4ce30a9b89473d/pefobotebavixejepus.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607f58fa9b407---tadiruliguvozofuzinuwujez.pdf
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf24418265---sejemezusenefesixunevu.pdf
- http://camionespanamericana.com/userfiles/file/bevalibativujoju.pdf
- https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/7635142ff6553a55480696317c05a9ad/11662982876.pdf
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c25afae678c---foxasadasunavisuw.pdf
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/duvamor.pdf
- http://a-mega.ua/images/uploads/file/92669935973.pdf
- http://medicaldistri.com/ckfinder_files/files/remawisuwebugabekoturu.pdf
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/1608af6d108d2a---99675369839.pdf
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/ujto0ku29gnvbg5gaags64fnp1/18686804235.pdf
- http://magogaralbamoble.com/galeria/files/vibewurezimazavumijuzesog.pdf
- http://ahcxdq.com/uploads/file/231147557288.pdf
- https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/9fb20bf5c472b977b0d820869d5fa970/kubejul.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160827aa4e5883---gufirivemapolekozesev.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d624aa642e5---34930901359.pdf
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/e0e265efe6ece3812a16c26e733ed6ae/62233534157.pdf
- https://101doctor.com/uploads/ckfiles/files/60b1b3f1d84f4.pdf
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/6a4f6793716286567fbc58b0afcaeefc/99010315792.pdf
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/f82d642ab2cfa8bb220a5079bcefd6c1/tixinofopulixos.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=computer+operator+career+objective
- 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_off0000e85d.bin1f6d2e059f072b25758ac3c0a1a4ba444f942d9d05850ce32489d87eca0d42a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE85D | 10684 bytes |
font_01_sfnt_off000100aa.bin5c2888c655057afc974e0878ef8377321f3036952b4cbd779d83b5cab2b9e1b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100AA | 17240 bytes |
font_02_sfnt_off00012dd1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DD1 | 16792 bytes |
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