MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of numerous external URIs, many pointing to disposable hosting and some with 'utm_term' parameters suggesting tracking or redirection, supports a phishing or link-farming attack pattern. The heuristic 'SE_DOWNLOAD_BUTTON' further suggests a lure to trick users into clicking links, likely to download a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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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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 https://ceral.pl/ceral/pliki/file/karudu.pdf In PDF document text
- http://rakkhunnursinghome.com/user_img/files/31556429802.pdfIn PDF document text
- http://zenithmetals.com/files/magaw.pdfIn PDF document text
- http://coolscape.info/images/files/82680587971.pdfIn PDF document text
- https://familienbilstrup.dk/userfiles/file/guzovupinafova.pdfIn PDF document text
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613e31a9becc3---nezenefago.pdfIn PDF document text
- https://caror.hu/ckfinder/userfiles/files/bekiwajatikepifuw.pdfIn PDF document text
- https://promise-land.com/upload/file/ditegofalixejen.pdfIn PDF document text
- http://studioarchperissinotto.eu/userfiles/files/gufasi.pdfIn PDF document text
- https://angkaganjil.com/contents/files/gerijeki.pdfIn PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/ea00b126b704ad7059fb3fdad07daa02/38799948469.pdfIn PDF document text
- http://marinapogon.pl/upload/file/85179868626.pdfIn PDF document text
- http://mizuho-co.net/file/ck/files/98019438531.pdfIn PDF document text
- https://totspotdaynursery.co.uk/ckfinder/userfiles/files/60102183292.pdfIn PDF document text
- https://dgssu.com/upfolder/e/files/20210904194624.pdfIn PDF document text
- http://app0.linkeo.it/ckfinder/userfiles/files/67620934232.pdfIn PDF document text
- https://arkadas.yuzuktr.com/eskortarama.com/resimler/file/wogumuromatugidejaz.pdfIn PDF document text
- https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/rubedozadupozujenukam.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16160e6ceb87ad---fexorixusarovozu.pdfIn PDF document text
- http://em-mould.com/ckfinder/userfiles/files/21121354704.pdfIn PDF document text
- https://taperagi.com/contents/files/gokamuxob.pdfIn PDF document text
- http://irfanmakina.com/depo/sayfaresim/file/69643947893.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=pikmin+rom+for+dolphinPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e775.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE775 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ff8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF8C | 10296 bytes |
SHA-256: 2450fe45f8e9186c7b128edccc5331849d5f239e874950c2edf5db2806c77cab |
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font_02_sfnt_off00011654.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11654 | 20228 bytes |
SHA-256: 6ccb1eda9408d5470f3f880d78a7178f0b19fee0a734b3f2bfe4acca440ee3dc |
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