MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating malicious intent, including links to compromised CMS uploads and link farms on disposable hosting. Notably, it includes a 'Clipboard command execution lure' which instructs the user to copy and paste content into a shell, a common technique for executing malicious code. The ML classifier also strongly flagged this PDF as malicious. The presence of multiple PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM firings suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://martonaroniskola.net/userfiles/file/46986980498.pdf
- http://intemhathanh.com/img_duhoc/files/gemamarudelider.pdf
- https://nestuby.com/userfiles/file/fababegepudagalut.pdf
- https://rubenoferro.com/userfiles/file/87878848284.pdf
- https://cometsecurity.in/admin/userfiles/file/44731966933.pdf
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/c9bdab4eb59fd998839ac8b6d2b72ba2/bozizekat.pdf
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/uqen5or2t6k88s056nq1dsi0hp/botamub.pdf
- http://frutapac.com/ckfinder/userfiles/files/ziperumuboj.pdf
- http://vietthanhstone.com/images/news/file/22908023617.pdf
- http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/3207d460674c248b35840abc42ee7bf6/26021283218.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/6ea60302d75eb7474b38417985e25200/33587533836.pdf
- http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607051179aea9---45900819579.pdf
- https://alutat.com/data/file/90769639783.pdf
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e0f7adcd86b---42783309623.pdf
- https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/0ef542c6e249c7270f8ea9286a9bf7b7/gupuwagawebovefopujilerov.pdf
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/e63b146d01756112722051106071e257/xeberowinedusupage.pdf
- https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9e4c6c3f0---wunosalu.pdf
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160745f276ca15---gaketagubotilegeke.pdf
- https://rivaflo-south.in/userfiles/files/63812834901.pdf
- http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160910a018a248---80285702760.pdf
- https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/19tudd8a4a0gqd0r1r4tnt8g30/matilafivizorazolugafopu.pdf
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/tnrbjn7tdotrb6t8q34h17595s/teroja.pdf
- http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/duwezamazodevilitudigesat.pdf
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/s67o8rsvoh2prr5a23cl3t0qq2/72585785674.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+update+android+version+manually
- 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_off0000f981.bine50204fc06c2a33df5a6dd578f554cfe5c6b9a100b51f5288c44a202d9c24ded |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF981 | 10908 bytes |
font_01_sfnt_off000112bd.bin88c81b710d1e97b7f7c972453feacc89f5c4ddf44f272337f7dd536c80ce81e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112BD | 17612 bytes |
font_02_sfnt_off000140ed.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x140ED | 16792 bytes |
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