MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated and unreadable, providing no direct content clues, but the heuristics strongly indicate a malicious link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/d2db1496df652b52affdbc9b0990d15e/96551463539.pdf In PDF document text
- http://ipsgroupjjn.org/userfiles/file/tidagisak.pdfIn PDF document text
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/160731a81b83f1---nopuwizesixutirat.pdfIn PDF document text
- http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080141c0cee5---susonixogetezugakibuvit.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086a76f14511---wosebetixivuw.pdfIn PDF document text
- https://trade.inter-ural.ru/ckfinder/userfiles/files/mubaforemojex.pdfIn PDF document text
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/urs5j110m147cjhcvluoqum0mb/tuxatewirogut.pdfIn PDF document text
- https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/28k4t1qvo7hre39j2ed71oegci/37114338098.pdfIn PDF document text
- https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16087855baa9f6---tatasifubevezazafexejikof.pdfIn PDF document text
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/avpg5ighdgnbende6l4v2n78cr/27342142993.pdfIn PDF document text
- http://phannhan.vn/files/usersfiles/files/vapijekikop.pdfIn PDF document text
- http://strandedtattoo.net/file/46490290650.pdfIn PDF document text
- http://rehahomecare.com/upload/editor/files/xufugibenogapanufopusu.pdfIn PDF document text
- https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082b430c77df---74732045731.pdfIn PDF document text
- https://www.ergunaygoren.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d107f6c8c4---jubukejizugevugizemexari.pdfIn PDF document text
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/3d8b813a8ec8c4d76ef20d505ba3402b/10506628907.pdfIn PDF document text
- http://degrossier.nl/uploads/file/17894894363.pdfIn PDF document text
- http://magendans.com/imagefiles/file/rosopoto.pdfIn PDF document text
- https://liantoong.com/archive/upload/files/53798079913.pdfIn PDF document text
- http://oresteruggiero.com/userfiles/files/1182367832.pdfIn PDF document text
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b258c347ea1---gotavamire.pdfIn PDF document text
- https://privatecambodiatour.com/userfiles/file/vezikuluxofi.pdfIn PDF document text
- http://cooper1972.com/clients/b/b4/b451ebb09e7e0345645526f893d9a49e/File/65558139354.pdfIn PDF document text
- https://saam.vn/images/content/file/36013055620.pdfIn PDF document text
- http://gediklimakinahidrolik.com/resimler/files/xururipivizabafaba.pdfIn PDF document text
- http://polimak.pl/userfiles/file/12916904474.pdfIn PDF document text
- https://carparts-fixture.com/file/file/lemefofowetidabiwezamogav.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=if+a+dog+bites+will+it+be+put+downPDF 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_off0000f3d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3D0 | 17092 bytes |
SHA-256: 438a0790808ff407866ba498561701e69023a56274104fbedd208cd317a369dd |
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font_01_sfnt_off00011f88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F88 | 10852 bytes |
SHA-256: 45814d2ba7aeebf5073dbc1a2c37128eabfb6fc5971fd9d3229cfd2a0a91e05a |
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font_02_sfnt_off00013856.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13856 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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