MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The primary purpose appears to be directing users to malicious sites, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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 http://mzch.pl/userfiles/file/96243613960.pdf In PDF document text
- http://letresorellebio.it/userfiles/files/sedowetorabikul.pdfIn PDF document text
- http://bangtutrang.com/upload/files/19725839622.pdfIn PDF document text
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/8288f17771ff32808d4dbb87a0a57c08/17341273268.pdfIn PDF document text
- https://sitycare.com/FCK-UserFiles/files/25911384871.pdfIn PDF document text
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/16138a9852acdd---90959929845.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131fa43abc26---jalevudidumaberedasorog.pdfIn PDF document text
- http://kerekagy.hu/UserFiles/file/30400745284.pdfIn PDF document text
- https://leise.ru/admin/ckfinder/userfiles/files/nogox.pdfIn PDF document text
- https://giorgiosantinelli.it/file/21496530127.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/45glel2nv4gajfhnn9dfma88qp/71838357364.pdfIn PDF document text
- http://yizhu580.com/ckfinder/userfiles/files/vuvixinesuso.pdfIn PDF document text
- http://av-jet.ru/userfiles/file/6703961448.pdfIn PDF document text
- https://vrrc.heart.net.tw/ckfinder/ckfiles/files/47968174413.pdfIn PDF document text
- https://partnyor.az/userfiles/file/giduna.pdfIn PDF document text
- http://stomerijindex.nl/images/uploads/refizelazaf.pdfIn PDF document text
- http://netart.hu/userfiles/file/kitejenibizorefosuv.pdfIn PDF document text
- http://6nergy.fr/6nergy/sites/default/user/file/rawilemore.pdfIn PDF document text
- https://hunglivet.com/uploads/files/202109061745323025.pdfIn PDF document text
- http://footstepfloor.com/upfiles/files/jojigupuzofulokud.pdfIn PDF document text
- http://shamayachts.com/upload/file/96962256385.pdfIn PDF document text
- http://npas.ru/pic/file/20106700630.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=collage+making+apps+for+androidPDF 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_off0000ebed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBED | 17180 bytes |
SHA-256: 647e797e7493d3ee665d0b9e6bf1c21406bad941900173ade012a5d75d09c3e4 |
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font_01_sfnt_off0001184e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1184E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013065.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13065 | 10864 bytes |
SHA-256: f43013fa54fbbaf0d065c36c60c619851bd1d6f649d80d22f9f112f876f6be18 |
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