MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms, suggesting a link farm designed to redirect users. The 'SE_INVOICE_LURE' heuristic indicates a potential phishing or scam attempt. While no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 7
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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 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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/i3e4m5uqef0fg3loqk0gfj8juu/fusagaru.pdf
- https://cdmsig.com/ckfinder/userfiles/files/94928149544.pdf
- http://www.toptehnik.si/images/xinuvasozunitufo.pdf
- https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/f68dfb42bed0006afe160a9e9d4ed2f5/33518770722.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/vjieirardaed57q9qjja062cqi/94163590068.pdf
- http://gillsandgeckos.com/userfiles/file/38498605838.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc2e28f9fe---zixirikiviradojevided.pdf
- http://brmhn.com/userfiles/file/20210529004747_228r7r.pdf
- https://noithatkuongthinh.com/uploads/files/62944304727.pdf
- http://aeronautike.com/userfiles/file/84300369270.pdf
- http://red-persimmons.com/upfiles/editor/files/wuxoxexikep.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a281634b4db---sorarojuni.pdf
- http://autoscuolepintozzi.it/userfiles/files/badusesisepegu.pdf
- http://st-ark.it/userfiles/files/29782621406.pdf
- http://banhangcongnghe.com/upload/FCK/file/kujogev.pdf
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/je8f4vvecp5gjo83e4h063pcm8/99296132411.pdf
- http://rmgoals.com/userfiles/files/83588070728.pdf
- https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bd1f335ca66---nogufokizuku.pdf
- http://teechart.com/uploads/images/files/20558927847.pdf
- https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/dfb827e6d5f3e293f199e866d16b12b2/votupijof.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608462c2389d1---vuxati.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=business+newsletter+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- 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_off00011204.bin383617f7fe3bf02087f0fb3964e1bcdd3a6960a0be37d7e148eea32feaaed62b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11204 | 17584 bytes |
font_01_sfnt_off00013f87.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F87 | 16792 bytes |
font_02_sfnt_off0001579e.binf43d001e7541bfae3cd22351442a52e7f3c6fa9798c6fb97cbf23833d889d771 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1579E | 10448 bytes |
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