MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by multiple heuristics and an ML classifier. It functions as a link farm, directing users to numerous compromised websites that host further malicious PDF files. The presence of multiple links to compromised WordPress upload directories and disposable hosting suggests a coordinated effort to distribute malicious content, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://wulf-sanitaer.de/wp-content/plugins/super-forms/uploads/php/files/tqf7eq2i0hero8lkf6fdt3i025/87067256821.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608982f59b92a---gerafepanezebegim.pdf
- http://hzjksj.com/images/upload/File/gibejurunefamofilosek.pdf
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073215e9fa67---46547649720.pdf
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/5ef282c809c2007b651dd69a94a4564f/44743699412.pdf
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/oh4hcl9dlhs05kabhb143bp2t4/luvalapekitavojituwofu.pdf
- http://amadpich.com/userfiles/file/99965702241.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b3fc356c748---63439825610.pdf
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16088f6c7163af---kimogise.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/16079648656a6e---lilowisetinejo.pdf
- http://thaoduocquyhiem.com/userfiles/image/file/16515917150.pdf
- https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/262e062075717a8ecac674046c528b3a/27673742437.pdf
- https://accesoriosalmayor.com/images/userfiles/file/konab.pdf
- http://yjsyrj.com/userfiles/file/dopadataxogedazoximax.pdf
- https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d6a165a8ab0e76c3e51ef517621010b5/nibixifixadaliwadiwani.pdf
- http://acecaalcoy.com/userfiles/file/76214109060.pdf
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160acea5a0d176---filefivumutulasubudalo.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160988647d66df---waximapifovozoru.pdf
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16093ce50ee6f9---86705392020.pdf
- https://zoomkish.com/basefile/zoomkishcom/files/91139019532.pdf
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1608121a85de4f---79561716775.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=roll+me+up
- 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_off0000ce3d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE3D | 16792 bytes |
font_01_sfnt_off0000e653.bin182e2c212244996fe4f95d0a63433aeeb9c57d4da46d0d4ce222590bc309141d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE653 | 9832 bytes |
font_02_sfnt_off0000fbe6.binc0094871c0c6c6cb68b5a7f898e99a54db7f45401a28b7b07e9391ec0f2e7bf2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBE6 | 16740 bytes |
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