MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing or trojan distribution attempt. It contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the overall structure point towards a phishing lure, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://infrive.ru/uplcv?utm_term=google+account+manager+7+frp+bypass
- https://cafesca.org/ckfinder/userfiles/files/gidiwomoruri.pdf
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/0ff3a1ed58e4157723f7e6b700035a15/48377617344.pdf
- http://dragonera.cn/admin/userfiles/file/banazegowim.pdf
- http://www.bufolari.com/public/immagini/file/86228693855.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16084961c09b87---10626954911.pdf
- http://highendschmiede.de/highendfiles/file/dukaxosomewutapulowuwazi.pdf
- http://salkim.com/userfiles/file/gemagima.pdf
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f54ebe5441---33191801851.pdf
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/a8fc6c40b4d22e5d2b330bf96f3bffd6/wakuxatedisomuba.pdf
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/khtqmipe98ekkq2giicpkj76b1/95945933032.pdf
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/649674bd5e695ef07780e9827e75e544/62660427413.pdf
- http://amdind.com/userfiles/file/pirubixuf.pdf
- http://moreit.ch/productinfo/file/navizibajexiga.pdf
- https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/436j4rnc9jpst2gbrntjumvc60/37344337035.pdf
- http://centralgiving.com/media/userfiles/file/lozadut.pdf
- https://cortopolis.ar/userfiles/file/83555128586.pdf
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160a46895f402e---weramazusojugumirabas.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/xufamokofiladibivafopiga.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607aaf49cee09---47121361778.pdf
- http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/93319045108.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/55da26ff989f1adce5171b3389b43b52/xevutozedibajorawewid.pdf
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/b218581e90e9d0d10f20f26bbc76ecf5/nixudele.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_off0000dfb6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFB6 | 16792 bytes |
font_01_sfnt_off0000f7cd.bin387a1330350338d6c8cfd37d85f187d1bde636ec4f049fb410e1951db9792052 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7CD | 11176 bytes |
font_02_sfnt_off000111de.bincef0c45f2c719b6e452d25020f2e3485870f9a26dfc9dced9594cb8bae9a145c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111DE | 17056 bytes |
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