MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. It functions as a link farm, directing users to various compromised websites and disposable hosting domains, likely to facilitate the download of further malicious payloads. The presence of numerous PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings strongly suggests a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://mimpisiluman.com/contents//files/jitadefamedufinisowu.pdf
- http://hy-concrete.ru/d/files/70183126743.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fc1eb570e6---nubozobiputazeworik.pdf
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096d5431fc02---4515185747.pdf
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160842ee226caa---wazomeval.pdf
- https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087bab4c77fd---60295911081.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/61167ccdb52c94ac5dffdaf43d6deb0a/samuluwufaxesadefov.pdf
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/88ffb2f9b0ac43d0c95c5bd9aedfe00a/33089900311.pdf
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160923f7d3c628---22313268238.pdf
- https://bobecoingatlan.com/uploads/editor/file/38451958017.pdf
- http://centrons.com/uploaded/file/139078989460c5de5c184e9.pdf
- https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/826575ebbfb70eef123d68a201947826/71571547422.pdf
- https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/1deaf238dec4bce66276a5e5963172ec/wuxivibevazowabiru.pdf
- http://nuestratierrapremios.com/campannas/file/2813932700.pdf
- https://lastcallslc.com/wp-content/plugins/super-forms/uploads/php/files/35afa7c96f5853a6006b0e263c6b250b/latanujejin.pdf
- https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093c69ace369---61984643011.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160984295518d9---dapivusowejiweviremofano.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/16082b73d4c330---vigurezigoje.pdf
- http://pizzeria-millemiglia.de/app/webroot/img/editor/file/fabexasirono.pdf
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1608317b9eeeea---sekupusilaxekosugote.pdf
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/8jaqbgeck7j7ck1djrrhib3gg3/werufufoxov.pdf
- http://ridendo.cz/files/file/43318453047.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=adobe+pdf+reader+for+android
- 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_off0000de4e.bin77abb7f5bec19b4e35e9fc65502689807c22ba9012b6404874285b265bdaac70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE4E | 10300 bytes |
font_01_sfnt_off0000f557.bin579ab15a71e5eab003bd89ba10eb4de57475c6214f5627b0d54916f879cee7bb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF557 | 16764 bytes |
font_02_sfnt_off000120d1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120D1 | 16792 bytes |
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