MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. The presence of a download button lure further supports this. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://arerp.kr/data/file///fadigafe.pdf In PDF document text
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/1834248251614a242b2fd46.pdfIn PDF document text
- https://aletihad-group.com/userfiles/files/teverosirawutilazudobob.pdfIn PDF document text
- https://www.passion-rnd.com/upfile/files/2021/09/05/kitilojavi.pdfIn PDF document text
- http://smarttechsolutionukltd.com/uploaded_files/userfiles/files/kitujodagiwuvixoluleteg.pdfIn PDF document text
- http://15449010.com/FileData/ckfinder/files/20210904_7C4FA9E98BFF58F5.pdfIn PDF document text
- https://specializzati.tecnaevolution.it/dataload/ckupload/velomuvujirejunigegup.pdfIn PDF document text
- http://aqua4you.hu/userfiles/file/lijotalagibidigezes.pdfIn PDF document text
- http://rhythm-thailandagent.com/attach/file/84865561860.pdfIn PDF document text
- https://athenaeumchessclub.com/ckfinder/userfiles/files/9277033408.pdfIn PDF document text
- http://bhavalaya.org/ckfinder/userfiles/files/lurebekawosiliretune.pdfIn PDF document text
- https://altstudio.be/app/webroot/uploads/file/suzala.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613970a05c222---67249291023.pdfIn PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615c9f23cd8b0---60863168298.pdfIn PDF document text
- http://glampingcaravan.com/userfiles/file/20210911121106.pdfIn PDF document text
- http://j1ent.com/userfiles/file/20210922193217.pdfIn PDF document text
- https://rh-h1tapi-turbo.com/contents/files/zaverido.pdfIn PDF document text
- http://rlponder.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/93714904025.pdfIn PDF document text
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f73ca79d4a---98442037817.pdfIn PDF document text
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/161523fdd19085---69068497576.pdfIn PDF document text
- https://marjoyunlar.com/calisma2/files/uploads/pokezezilarunavu.pdfIn PDF document text
- http://vatlieulamnha.com/media/ftp/file/dimujaf.pdfIn PDF document text
- http://skyrybupaslaugos.lt/uploads/files/28026868132.pdfIn PDF document text
- http://cn-junsheng.com/upload/file///2021913161022346.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=magick+in+theory+and+practice+pdf+downloadPDF 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_off0000de2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE2D | 20524 bytes |
SHA-256: 90459c921217a54e2b0fc7251fa857fa6232dc58b0423d921e6bcbddf123a26e |
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font_01_sfnt_off000113be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113BE | 11016 bytes |
SHA-256: 0fc42bde3aa15bba5e4f69edfd68408616bb555dc0ea956aa551bae4af1c3bb1 |
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font_02_sfnt_off00012d2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D2B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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