MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with several URLs pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution lure. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the overall structure and URL analysis point to a malicious campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://dedanskecasinoer.dk/userfiles/file/98214902921.pdf In PDF document text
- http://tao-ssct.org/data/upload/file/jogepivuv.pdfIn PDF document text
- http://hyundaihungthinh.com/uploads/images/files/20480541525.pdfIn PDF document text
- http://xn--80aafbjcazdrhzgiddbbcsg4l.xn--p1ai/pict/file/lekezuvorepubup.pdfIn PDF document text
- http://skupka54.ru/upload/m/5791776175.pdfIn PDF document text
- https://keralatemples.info/ckfinder/userfiles/files/88149337506.pdfIn PDF document text
- http://studiotecniconuti.it/userfiles/files/sinatewovojiriboxek.pdfIn PDF document text
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16139a2ff2f616---merogumomezazo.pdfIn PDF document text
- http://meimagedance.tw/ufiles/files/51996004604.pdfIn PDF document text
- https://il-gusto.com/images/file/dunapezoxebidaxorax.pdfIn PDF document text
- http://lex.tj/img/file/gatukoletadejotibaputak.pdfIn PDF document text
- http://soft-pro.hr/upload/datoteke/11583306153.pdfIn PDF document text
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/ffc58059d94f292f9d847cd6e721bf04/31305398666.pdfIn PDF document text
- https://ewdel.cz/ckfinder/userfiles/files/73463280041.pdfIn PDF document text
- http://arredamentoambienti.it/img/file/73788033166.pdfIn PDF document text
- http://elskup.pl/images/assets/file/38833844532.pdfIn PDF document text
- https://omnistopbollards.com/application/third_party/ckfinder/userfiles/files/gajawifobi.pdfIn PDF document text
- http://flexa.cz/docs/file/73391633683.pdfIn PDF document text
- http://romanakladatelstvi.cz/userfiles/file/taduv.pdfIn PDF document text
- https://fidelishospice.com/ckfinder/userfiles/files/fonesubuvudawe.pdfIn PDF document text
- http://er-trans.com/img/produkty/files/65104563618.pdfIn PDF document text
- https://actorconseil.com/files/file/jifowepomegobagax.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613e77e26cb38---mifezesowuru.pdfIn PDF document text
- http://leylasuren.com/images/userfiles/imagefile/dukanuvunesitowabigipe.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=block+mod+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_off0000d66e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD66E | 10124 bytes |
SHA-256: fd898e2c9fc2106aab2a54f69d9a1bdb4e389dbc62fa4f37f8130793c09aebc8 |
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font_01_sfnt_off0000ed12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED12 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010524.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10524 | 16632 bytes |
SHA-256: 03166bfececfd5a2fc79c2aac81045cd0cf0176a4f7a3e40737fb9a55cb079ce |
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