MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links pointing to compromised WordPress sites, which in turn host other malicious PDFs. This behavior is indicative of a link farm designed to distribute further malware or phishing content. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e4049db88cf---ritonotisejikuwuviril.pdf
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/8ae4bded780c8ae7d60add2af03abc52/tapesoguxurixabizepu.pdf
- http://pallenberg-busreisen.de/uploads/files/lizojijovamubepodugis.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160874cd00befd---pagisufa.pdf
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a373338812c---15879126343.pdf
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa954207dfd---25419078135.pdf
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/c0b84437e9df6d2a095a4d63448f7595/livemoloburog.pdf
- http://sonsuadogo.org/Images_upload/files/13905600299.pdf
- https://acgroupenterprise.com/userfiles/file/29112687372.pdf
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160be9c06264b1---zuvofego.pdf
- http://kwong-cheong.com/userfiles/45274056427.pdf
- http://mai-colle.jp/userfiles/file/13645236058.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/6f55b9ac20e95ae4c83dc17e3baed463/61636377727.pdf
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607234abc244a---xudoka.pdf
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9bf0b3fe37---bobubopur.pdf
- http://aeronautike.com/userfiles/file/kogabigez.pdf
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/16091a1d268e91---74013309314.pdf
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/iq1mbvpkabgs15que1pf25lbeo/52724746660.pdf
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/eee388dba73bab518ff7b84bee9b97b1/pufaj.pdf
- http://beerskiboot.com/img/upload/file/705538039.pdf
- https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/d9b6286cc09058a6877fc1625fb70e41/13677710990.pdf
- http://abacusnancy.com/userfiles/file/83895337915.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=hess+well+drilling
- 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_off0000eb07.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB07 | 16792 bytes |
font_01_sfnt_off00010319.bina68b62d07e97629d575472f811837774b6260d358c2caa7bc5293a6ce603dde0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10319 | 17532 bytes |
font_02_sfnt_off000130aa.bincb1bd2369d33d1f33a951bf62c5026a4fa7530c2bac4b3c6a7d336d7cc63751e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130AA | 10120 bytes |
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