MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to other PDF files hosted on various domains, some of which are associated with compromised CMS uploads. This suggests a phishing or malware distribution scheme, where users are lured to click on links that lead to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://taxplus.in/images/contentimages/files/389787662.pdf In PDF document text
- http://wooshin.kr/uploaded/file/7037058156137650687830.pdfIn PDF document text
- http://magiepourenfants.com/images/mediamanager/file/21515453316.pdfIn PDF document text
- http://origo.ws/userfiles/file/66257208580.pdfIn PDF document text
- https://forssh.com/userfiles/file/timukuditivopodugib.pdfIn PDF document text
- http://bud-drog.pl/userfiles/file/fufumasanena.pdfIn PDF document text
- https://mama-light.net/business_school/uploads/file/rupisukusivos.pdfIn PDF document text
- http://zubrcup.by/files/files/94665720405.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161364a324761f---73946568564.pdfIn PDF document text
- http://terrietanaka.com/library/files/zadab.pdfIn PDF document text
- https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/33aacef48d09c78030ee7d6a28ce2a62/87381224642.pdfIn PDF document text
- http://lacasedescaraibes.fr/file/sijafepalobuluzaronuxo.pdfIn PDF document text
- https://abhrian.com/userfiles/files/sokukarilikajuz.pdfIn PDF document text
- http://ktcyy.com/ckfinder/userfiles/files/bidemurupofalasufizubut.pdfIn PDF document text
- http://www.xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/2046777293.pdfIn PDF document text
- https://cuichi177.com/uploads/files/202109072004065516.pdfIn PDF document text
- http://gainliving.com/upload/editor/file/84455226323.pdfIn PDF document text
- http://mcutech.net/files/benuvidow.pdfIn PDF document text
- http://archifolder.com/userfiles/files/19113476637.pdfIn PDF document text
- https://gjbuyerbroker.com/userfiles/file/527623712.pdfIn PDF document text
- http://baschin-heizung.com/meineBilderAlbertGrundschule/file/70991653201.pdfIn PDF document text
- http://knupress.com/pds/editor/file/14314586807.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613a90121f100---kobadidalozab.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=fronto+lock+screen+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_off0000d2b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2B2 | 10344 bytes |
SHA-256: 6ea0b8003a55bd077174736f7c7a2d925946e5a93ac257df1430293a8604775c |
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font_01_sfnt_off0000ea2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA2F | 17996 bytes |
SHA-256: 13d74673b6e6cc0fce15fc0339099f99ddb6cabe6fefd8070c56d8b335f1638b |
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font_02_sfnt_off00011897.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11897 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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