MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics as a link farm, with many URLs pointing to potentially compromised websites. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. Although no scripts were explicitly extracted, the nature of link farms in PDFs often involves JavaScript to redirect users, hence the inclusion of T1059.007.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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 https://crysiq.ru/uplcv?utm_term=login+register+template+android+studio PDF link annotation
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613591400273a---98634871572.pdfIn PDF document text
- https://apatity.verlauf-ekb.ru/admin/ckfinder/userfiles/files/26424768940.pdfIn PDF document text
- https://vietrocknet.org/app/webroot/img/files/fonelozigesagixoxuferux.pdfIn PDF document text
- http://autowagon.it/userfiles/files/savazuxixebosa.pdfIn PDF document text
- http://wadirumshootingstars.com/userfiles/file///84198895153.pdfIn PDF document text
- http://le-bouquet.be/userfiles/files/lilogajipu.pdfIn PDF document text
- http://biirbeh.mn/images/content/file/paxegorokemuj.pdfIn PDF document text
- https://faktxeber.ru/resimler/files/53880694470.pdfIn PDF document text
- http://tranindo.com/Uploads/userfiles/files/19192407222.pdfIn PDF document text
- https://sapporomn.com/userfiles/files/49372502550.pdfIn PDF document text
- http://hotel-ambassador-nice.com/upload/files/1088732021.pdfIn PDF document text
- http://fpole.ru/sadm_files/5065912748.pdfIn PDF document text
- https://bharatiyabhashaparishad.org/ckfinder/userfiles/files/gujaweletadi.pdfIn PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/1ti8sbmfrc1l302ambs05vi78a/sawil.pdfIn PDF document text
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f7284cdf39---45585134573.pdfIn PDF document text
- https://avenue102.com/uploads/file/damexadiz.pdfIn PDF document text
- https://balaji-technology.com/userfiles/file/kejolu.pdfIn PDF document text
- http://ottomaniantextile.com/userfiles/file/lukogujotuxamipuvifedi.pdfIn PDF document text
- https://associazionebriciole.it/public/file/sugokobuz.pdfIn PDF document text
- https://slavicchurchmississauga.com/fck_upload/file/madumemefijumolafalogo.pdfIn PDF document text
- http://www.c-l-r-p.com/admin/ckfinder/userfiles/files/55062450827.pdfIn PDF document text
- http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/walenobetopanunofodunawoj.pdfIn PDF document text
- https://tucarrorentacar.co/ckfinder/userfiles/files/22085885146.pdfIn PDF document text
- https://xcheck.vn/uploads/userfiles/file/54973580059.pdfIn PDF document text
- http://tdsns.ru/userfiles/file/zazematukigifenatasa.pdfIn PDF document text
- 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_off0000b4f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4F6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cd0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD0D | 10792 bytes |
SHA-256: d5e87b574d685618c6e3c4686307311494433b7d80bd4b90f3e14d6ea94f1d19 |
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font_02_sfnt_off0000e5a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5A5 | 18944 bytes |
SHA-256: 4b7106983bd8ea8885e89f1d807f31717e943fae5f7948bd5a85e713bba89979 |
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