MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and compromised CMS upload links points towards a phishing or malware distribution scheme.
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://catamma.ru/uplcv?utm_term=top+follow+apk+instagram PDF link annotation
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16133fc85a4e8e---42237470799.pdfIn PDF document text
- http://issaproject.com/app/views/panel/ckfinder/userfiles/files/2892406362.pdfIn PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/95ci54hpq8imq8q7oe0kj29rhc/zodidemebugigokutufa.pdfIn PDF document text
- https://lescourailleurs.com/upload/editor/file/bebemopowaxarikema.pdfIn PDF document text
- https://www.bosingels.nl/ckfinder/userfiles/files/5407896177.pdfIn PDF document text
- https://cristalparkhotel.com.ve/ckfinder/userfiles/files/47527312045.pdfIn PDF document text
- http://katela.net/userData/board/file/kinutigametomi.pdfIn PDF document text
- http://notar-frings.de/userfiles/file/75192405862.pdfIn PDF document text
- http://fitsiluet.cz/data/file/92522683323.pdfIn PDF document text
- http://vwtint.com/userData/board/file/bekokibewuderatefotex.pdfIn PDF document text
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613495575a851---fuzisixepog.pdfIn PDF document text
- http://fotofolliasanlazzaro.it/userfiles/files/39382399198.pdfIn PDF document text
- https://mimpiindahsatu.com/contents/files/36613927929.pdfIn PDF document text
- http://hide-bo.com/img/tmp/file/11173590108.pdfIn PDF document text
- http://hydrem.ru/images/file/11230009975.pdfIn PDF document text
- http://3e-machinery.ru/app/webroot/filesfiles/66396232204.pdfIn PDF document text
- https://zemtechnika.lt/public/site/0files/64095082034.pdfIn PDF document text
- http://telektrans.hu/editor_up/xikujufamimetovofi.pdfIn PDF document text
- https://mailing.crpm.ch/ck/ckfinder/userfiles/files/gizofejajoxi.pdfIn PDF document text
- http://olgapolyakova.com/files/files/1726061188.pdfIn PDF document text
- http://jobcred.com/rk/jobcred/uploads/image/file/tizatiwufit.pdfIn PDF document text
- http://hoshitorionline.com/uploads/files/38873174277.pdfIn PDF document text
- http://articolo17.it/siti/usr/foto/files/99602568736.pdfIn PDF document text
- http://pro.ovh.net/~tribuene/images/banque/file/kixisa.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_off00010e9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E9C | 18416 bytes |
SHA-256: a3883b0ef447baf1abb944d785cabb542ce616132bcf320ba7a0c948a5effcd3 |
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font_01_sfnt_off00013e7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E7F | 10708 bytes |
SHA-256: 11a964915de520db50ba07a5fb25510b80c9c613cfdcf26654c59fd4ae0c4b6e |
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font_02_sfnt_off00015728.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15728 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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