MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that form a link farm, likely intended to redirect users to phishing sites or download further malware. The presence of multiple compromised CMS upload links suggests a tactic to host malicious content on seemingly legitimate but compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://philabc.ru/uplcv?utm_term=party+in+my+dorm+mod+apk
- http://bielwod.com/userfiles/file/27097774436.pdf
- http://pc75.net/upfiles/file/1625579285.pdf
- https://monyetmesum.com/contents//files/61128209823.pdf
- http://mynigaoe.com/upload/file/20210730054401.pdf
- https://asiajitutop.com/contents//files/xifasofapo.pdf
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160707aee193f3---papoji.pdf
- http://luxe-pools.fr/i/File/91926743319.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608461037d326---34305243371.pdf
- https://marbeyoyun.com/calisma2/files/uploads/40855869091.pdf
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/8193f7434400eb50625e565d837882f8/zolunokazeje.pdf
- http://akcjonariusz.com/UserFiles/file/faxitajip.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/c18deb4166e309224e9b5b0edd31a66e/19176216759.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16100ac68350dd---lijelagotaj.pdf
- https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/fjkeakfsv5ln9v1vd2v8pu5ap6/41469376980.pdf
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16107468371058---nolisob.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160743bb3ba5f1---73261427201.pdf
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/bhp1vo7a2enouruggrb773omc7/bavovuleredo.pdf
- http://trans-serwis.com/userfiles/file/solalijule.pdf
- http://fszhenjia.com/upfolder/e/files/20210710115832.pdf
- http://orgue-chantepie.info/FCKeditor/upload/file/lobumi.pdf
- http://al-bandak.com/userfiles/file/88070850609.pdf
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/161105708d8054---55338225932.pdf
- https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/d25882730ffbaf71724a02af1c14deb3/kiseragamelidimixepor.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/1607ceac30671f---bewusa.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d817.bin52e4bf7fa2fd1307808c51e2ab9c39e481296755482ae4177c3ccfa8c77f9907 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD817 | 16696 bytes |
font_01_sfnt_off000103b4.binc9186d153240890c2785deb777a01dbacd5a77f37ae65602b798b9a77b96bfe4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103B4 | 10416 bytes |
font_02_sfnt_off00011b3f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B3F | 16792 bytes |
font_03_sfnt_off00013350.bin00b1f632e8afe72716c8bcdb76b7901b56c060d1dc0f96f3f5c1b8373b85735b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13350 | 16140 bytes |
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