MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to redirect users to malicious sites or download further payloads. Multiple heuristics indicate the document is part of a link farm hosted on compromised or disposable domains, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160987e5a0412a---zonepiretejiri.pdf
- http://naturallabs.de/userfiles/file/tofutuwojimedirofop.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/hc1dtm7c3plkor68156rlikal0/bajusex.pdf
- https://hsse.cl/files/luturodedusogowevepigeve.pdf
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606da6ed2ae70---72437965667.pdf
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160750bced5f59---benuj.pdf
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160742796ee2fa---69827649951.pdf
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b0b58f639d2---17838564460.pdf
- https://londonvipchauffeur.co.uk/wp-content/plugins/super-forms/uploads/php/files/a378b6a785b27ec17c858cb042107c5d/12266082621.pdf
- http://taitung-house.com/CKEdit/upload/files/28480904897.pdf
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cac53340cd5---93486729755.pdf
- http://helder-effect.nl/userfiles/file/71500796831.pdf
- http://hakanhurdacilik.com/userfiles/file/fulokira.pdf
- http://broadviewlibrary.org/uploaded_bvlib/file/turojevi.pdf
- https://chambres-hotes-aube-bleue.fr/userfiles/file/19681991222.pdf
- http://www.onlinetemsilci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160740710ee4f6---jelazikusodolekuzi.pdf
- http://helpibr.org/clients/f/fe/feaff840d005acecac0f151e8679c8db/File/75933390737.pdf
- http://nawaress.com/webroot/js/ckfinder/userfiles/files/74179467964.pdf
- http://tanriovermensucat.com/uploads/genel/files/45111861107.pdf
- http://angeladaniel.eu/uploads/files/mumalik.pdf
- https://transport-vehicules.fr/userfiles/file/worobubejakavisowa.pdf
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c6d1df5be62---xifusowu.pdf
- https://samsungdvm.net/upload/ckfinder/files/vawasitikogasufugeto.pdf
- https://ajitcoatings.com/uploads/ginasisakovefedijenava.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=word+power+made+easy+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010e54.bin0a3c230be41f1eab2bac70d850fd55190ac43b0b7893b0f4f8b76cdd2c6b41e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E54 | 16576 bytes |
font_01_sfnt_off00013953.bin1fe6c2045d48814f76c3f7e20f63478fd20acbdfe4aac43d680816032a20379b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13953 | 10512 bytes |
font_02_sfnt_off00015158.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15158 | 16792 bytes |
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