MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, with several heuristics indicating it functions as a link farm. Notably, one URL points to a compromised WordPress upload directory, suggesting a potential distribution point for further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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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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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://obkladacstvikolar.com/content/77858628437.pdf
- https://toliveinchristjesus.ceosale.catholic.edu.au/application/third_party/ckfinder/userfiles/files/42935260383.pdf
- http://anhbanglaw.com/userfiles/file/xaselorarozutopokuwived.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614aca287ae30---dubupezanumowumozudujim.pdf
- http://www.tekkoo.net/images/library/File/jafifukimedol.pdf
- https://buyafranchise.org/files/files/70526421134.pdf
- http://csc0851.com/userfiles/file/20210906164919_k4tnyr.pdf
- http://vstarmp.cn/upload/files/20210923_030307.pdf
- https://hotelangela.hu/userfiles/file/76209091217.pdf
- http://hflbdq.com/uploads/file/231454191567.pdf
- http://hevolta.com/upload/file/fikanuxokeve.pdf
- http://poketomecam.com/uploads/files/20454010124.pdf
- https://amoslodge10-org.alljobsinliberia.com/ckfinder/userfiles/files/41625537404.pdf
- https://shinaltd.ru/images/file/2400649301.pdf
- https://kga-am-adlergestell-ev.de/kga/ckfinder/userfiles/files/83086295.pdf
- http://gensugroup.com/upload/files/rimebimesagufav.pdf
- https://betenrealestate.com/sites/default/files/file/tosidonamode.pdf
- http://stitesattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tilenigufiluduburugoluf.pdf
- https://intersat.lv/files/file/wivigunikalufegivom.pdf
- http://beloezoloto.ru/userfiles/file/63158565860.pdf
- http://rentaruedas.com/files/others/12585018133.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140243cefa48---27751126690.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614796ccafbc8---gusolilitesizajodot.pdf
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16139d9a43d60e---76503214044.pdf
- http://ksiclubcom.ksiclub.org/svnprojects/DHD/Source/images/files/renijoderas.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=stop+android+chrome+auto+playing+videos
- 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_off0000b2da.bin563098590a0393c04256f7463275ec4b1e97dc73449f5493ad9db6c03b099153 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2DA | 16616 bytes |
font_01_sfnt_off0000dd1f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD1F | 16792 bytes |
font_02_sfnt_off0000f536.bin69fbac3d107838934431511bb33ee31be30f7e2caf668c840d162bd65c6653c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF536 | 11316 bytes |
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