MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious or phishing pages. The PDF structure and embedded URLs are consistent with phishing lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://inwebjor.ru/uplcv?utm_term=addition+story+sums+for+class+3
- http://zae.me/datafiles/file/70898383933.pdf
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160dc0fdcaa260---31048326620.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160789bf39605a---besizanorakiropodigatow.pdf
- http://vekosgroup.ru/userfiles/file/zadujiwewulo.pdf
- https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606da6d17a4ed---paximalenugoji.pdf
- https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/o5o12kf7m7i9nj7u8l0mjrhfv1/rixakobugukofip.pdf
- http://diamondsnspurs.com/clients/12200/File/96202203960.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d12e0876c5---lepufegetenapojamiluvugan.pdf
- http://hayatteknoloji.com/webimage/file/63295683352.pdf
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/8hm3g9p350j35lt7p0ktm0n400/74608174460.pdf
- http://artechq8.com/beta/uploads/files/ribulafe.pdf
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607d71a63cf01---89565978899.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a134744d430---38401222628.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160bd238d46be4---95992449446.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609786078cdfa---44275655977.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607025275e7cb---83199942831.pdf
- http://kleiberit.ru/files/file/91940272491.pdf
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/5db60134c2783b61a99117c90e1fb812/44001797885.pdf
- http://alituncer.com/userfiles/file/sonowajaj.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d55975cfc3---37083930583.pdf
- https://securitydm.rs/slicice/file/wiwanonutewuvaxidaxerigex.pdf
- https://guclupin.com/calisma2/files/uploads/sojiwegitobosorulomo.pdf
- http://anandamsanyal.com/userfiles/file/56902942002.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_off000109bc.bin583a271d83e1deba5279443c1c0495fc9671c71ec5465a664c359607b7f56506 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109BC | 10872 bytes |
font_01_sfnt_off000122f0.bin82f58a86e4dc4a52a77d0e987fb0826feca2e72f45ca385c5b8438d7ca5d1046 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122F0 | 19208 bytes |
font_02_sfnt_off000153e9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x153E9 | 16792 bytes |
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