MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains a link farm pointing to numerous PDF files hosted on potentially compromised or disposable domains, suggesting an attempt to distribute malware or phishing content. The presence of a 'download button' heuristic further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://dinskayarealty.ru/media/file/pisaziwakomimegejup.pdf
- https://medicentrumnz.eu/medicentrum/files/file/punuta.pdf
- http://ayhancevik.com/images_upload/files/94080394348.pdf
- https://rtvpuls.com/ckfinder/userfiles/files/kimelarefamaxuka.pdf
- http://sbsinternationalschool.org/sbsisnew/userfiles/file/86522313402.pdf
- https://shopinhome.com/ci/userfiles/files/28401682406.pdf
- http://amoy-art.com/Upload/file/wexedupibuwoti.pdf
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/rbf9bjh9rtdr0dfpvkkp5kibmn/nopejotegasuvemugexiwu.pdf
- http://mamaskitchenorder.com/uploads/files/16721602825.pdf
- http://syuncyoku.jp/upload/file/59357982216.pdf
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607159e743abe---wojukinuwoletef.pdf
- http://www.swaving-stalinrichting.nl/ckfinder/userfiles/files/kamawuxaf.pdf
- http://kamnitikamini.si/upload/files/26395448872.pdf
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/c223e6eb80766e2a26f17abec185b925/rifadofo.pdf
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/3902f56cb50f65ab22b7b8d6f44ae1aa/mifikugezesupaf.pdf
- http://kibbkw.com/uploads/file/dokujabev.pdf
- http://kxqcgs.net/filespath/files/20210831010810.pdf
- https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/047d76c8f7bf0976f4519c974c2b7935/zuteronawiwudet.pdf
- http://mini-garden.ru/userfiles/file/41068508643.pdf
- http://harryreichert.de/uploaded_pics/News/file/zevokozon.pdf
- http://raylutickenterprises.com/userfiles/files/vudox.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/161313d3c3313b---67752623603.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=first+grade+sight+word+worksheets
- 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_off0000d1ca.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1CA | 16792 bytes |
font_01_sfnt_off0000e9e1.bind8763e332791dfb4223c3979df2f855163aea9c471ff07e89cafeae4e1dff9fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9E1 | 10532 bytes |
font_02_sfnt_off000101de.bin702e5ff05dcf6b83b5c96a4a6f37c35fc11d0a35d2f1c1a7ede531ceaad4b8de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101DE | 17948 bytes |
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