MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The heuristics indicate the document functions as a link farm, directing users to multiple potentially compromised or disposable hosting sites. The presence of numerous PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings strongly suggests an intent to distribute malicious content or phish credentials through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://ecohort.info/userfiles/files/43545276034.pdf In PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/bd72d54080b70d7446c69bbf303104ef/fivitiku.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/16135f133b6ee3---zegizirixaboguti.pdfIn PDF document text
- http://z-sinpro.com/upload/files/zikunonexib.pdfIn PDF document text
- http://salamino.pl/userfiles/file/fetel.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1613be77e12488---65188734100.pdfIn PDF document text
- https://gulfsupremesa.com/ckfinder/userfiles/files/sunofukesufupigasab.pdfIn PDF document text
- http://www.videobezopasnost.ru/ckfinder/userfiles/files/73996391201.pdfIn PDF document text
- https://wrd13.com/force/file/xikibulizakuzatujebovomup.pdfIn PDF document text
- https://biocoils.com/img/file/79309170277.pdfIn PDF document text
- http://ji-tien.com/userfiles/file/lowofijenere.pdfIn PDF document text
- http://lovesenergy.com/file/23456175610.pdfIn PDF document text
- https://morethancars.eu/uploads/edytor/file/37699311380.pdfIn PDF document text
- https://www.aaptuk.org/ckfinder/userfiles/files/gabapopekavilowawopikowe.pdfIn PDF document text
- https://giridhareye.org/ckfinder/userfiles/files/7730076461.pdfIn PDF document text
- https://client-sms.com/ckfinder/userfiles/files/gukajaso.pdfIn PDF document text
- http://doggystylzgrooming.com/admin/photos/file/poruvew.pdfIn PDF document text
- http://studiosaletta.it/userfiles/files/zijuw.pdfIn PDF document text
- https://at-studio.tw/app/webroot/userfiles/files/20210919_062342.pdfIn PDF document text
- https://www.abandassociates.com/ckfinder/userfiles/files/putuvefanozafas.pdfIn PDF document text
- http://frutapac.com/ckfinder/userfiles/files/91925022949.pdfIn PDF document text
- http://mprime.net/ckfinder/userfiles/files/58982962694.pdfIn PDF document text
- http://iktoktatas.hu/files/file/sobimakefolibenap.pdfIn PDF document text
- http://fruitsad.pl/images/file/45021451616.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=facebook+auto+liker+2021+apkPDF 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_off0000d28a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD28A | 10700 bytes |
SHA-256: 2ff85c1168d4a2eca8286a3808bdb1461872d0bc149013f8873f1cbd9d2dcb61 |
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font_01_sfnt_off0000eb12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB12 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010324.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10324 | 17164 bytes |
SHA-256: b6d3081e688f7f97723fdbb1e0a7e5c20259b01e8612a329cc94d1d6a5187d50 |
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