MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. Heuristics indicate it functions as a link farm, utilizing compromised CMS uploads and disposable hosting to obscure its true destination. The embedded URLs, despite some being marked benign, contribute to the overall obfuscation strategy.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://dekobonner.de/userfiles/file/90537737547.pdf In PDF document text
- http://baschin-heizung.com/meineBilderAlbertGrundschule/file/kovupikasiwodiriz.pdfIn PDF document text
- http://come2menorca.com/images/file/pebizinukajunezimesa.pdfIn PDF document text
- http://clarksville.net/wysiwygfiles/file/24617446169.pdfIn PDF document text
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/161130f2f5e846---33534620716.pdfIn PDF document text
- https://hamasataccessories.com/userfiles/files/86465403530.pdfIn PDF document text
- http://emons-verlag.net/testarea/cwsCMSlight/media/files/kasokivikibijuj.pdfIn PDF document text
- http://ztkammer.at/uploads/file/10871472974.pdfIn PDF document text
- http://www.contectrade.hu/fckfiles/file/37650549158.pdfIn PDF document text
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/1af33cdf68502678b8058ae2b18d9f4f/93961448225.pdfIn PDF document text
- http://beganijewellers.com/ckeditor/ckfinder/userfiles/files/zometefelajobefinasefaw.pdfIn PDF document text
- http://generoussecurity.com/uploads/nogonogebizijawasawojurom.pdfIn PDF document text
- http://svaz-podnikani.cz/files/file/kujagafomudapukino.pdfIn PDF document text
- http://geose.ru/userfiles/file/worunuvabazezasesaluwuvit.pdfIn PDF document text
- https://footballsod.com/images/ck-uploads/files/wipujomakoburofivozi.pdfIn PDF document text
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/t5lf0nql50fc57po1jtkn3ksvr/xexetovotapunoravelomu.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c2ca32c81b0---zogasanofirabijaki.pdfIn PDF document text
- http://jaika.in/images/documents/files/godinoponusijaripiwisaw.pdfIn PDF document text
- http://agendatourvietnam.com/hinhanh/file/94557898592.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=henry+iv+part+1+pdfPDF 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_off0000d39f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD39F | 10380 bytes |
SHA-256: 9fd950f9dc793ca46809451117b1b55592f45d4421740e302c8761f43a7d2a9a |
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font_01_sfnt_off0000eb39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB39 | 18352 bytes |
SHA-256: 13cf68eeed28f3f3585879801b69d533084448f9b5ee68e953c1aa44ce201116 |
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font_02_sfnt_off00011b55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B55 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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