MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The presence of JavaScript indicates potential for further exploitation or redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://nppmaudaha.in/ckfinder/userfiles/files/45564377166.pdf
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/k741vl22g1lsc291ovgnacufl4/zokinebuladekupigi.pdf
- https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/678925ebd30cd112aa09bf71c5f6dcb7/tozivodeloguvuzinerogebot.pdf
- http://maxgear.cz/webpagebuilder/ckfinder/userfiles/files/50169903826.pdf
- https://taichielite.com/louis/taichi/ckfinder/userfiles/files/7341743429.pdf
- https://www.eoluk.com/wp-content/plugins/super-forms/uploads/php/files/o0tb8dtsboe1gh9n63dfgo8ocu/gizidokur.pdf
- http://fygl.net/uploads/file/300953309329.pdf
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/d6a32ecaa898a02d6602d543a5e672cb/81621164783.pdf
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/c93a738413656e4b2eac98b5cb9a2339/jekeziwugamijitimuvurin.pdf
- https://charlesstreetvideo.com/userfiles/file/jutufekarufudow.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a34e0e16c8a---rixabetel.pdf
- http://safiorida.nl/operatori/userfiles/file/2538346710.pdf
- https://fnb-concepts.com/images/uploads/files/26775185045.pdf
- https://needlugs.com/userfiles/files/37013369566.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c3ff5e031---66074634611.pdf
- http://www.chubsorn.com/file/files/26166711749.pdf
- http://execdentalclinic.com/uploads/ckfinder/userfiles/files/vopagi.pdf
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e57f26b57bd---nitibapegobinokokefum.pdf
- https://superpart.com/files/49177479885.pdf
- https://guenangequitation.fr/www/site/js/ckfinder/userfiles/files/389235464.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/fa9b1n52bqi4eco6rrd6vqeqhl/43473277583.pdf
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c0816656ab1---kexotozubowogovegotavat.pdf
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/a4533beb92ef61c540d7f9e00cc32288/50288617448.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=drilling+formulas+handbook+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_off0000e722.binc1c13a9d4c58abe5066e1e2a2c98d380d3d655ac0b1613b5bf8a1a341c39ebb3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE722 | 18840 bytes |
font_01_sfnt_off0001186f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1186F | 16792 bytes |
font_02_sfnt_off00013086.bine56c6e06288774823537842e2fc47ae44bdbda94235ed78755b1af33f93b27e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13086 | 11048 bytes |
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