MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains numerous links to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farms points towards an attempt to lead the user to a compromised or malicious website, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/4kphqemp6q8v4a3r4a6bc4sj63/57937523442.pdf
- https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/7bd9d72c048a311fa080a5b7ab9bb74d/55165438113.pdf
- https://room12shio4.com/contents//files/kivugapekofuwesoz.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16086d1be9ee58---masorukapunomopoxa.pdf
- http://ijdssymposium.eu/upload/44018756469.pdf
- http://salinahighschool1968.com/clients/3/33/33fcb9b832a528c934b1ac42c6b88a99/File/6092286148.pdf
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/39580b001a814dd0383035c2d0f6139c/36702449941.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160865dc24c87c---21669283827.pdf
- https://terminal.hr/userfiles/file/50301403984.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160a32d9cc2d88---23324033397.pdf
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a90ea1da6fc---majoxu.pdf
- http://kursadowicz.pl/Upload/file/4673543901.pdf
- http://diclenakliyat.com/userfiles/file/jogiremuwaxuro.pdf
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a0b193f2bd7---furemagekisononaze.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/h2qt8r9t1bd180om99j6jj3tm0/63067578621.pdf
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/1cefb57ada7e69211fe6b13ab2df6f6a/96391047855.pdf
- http://aisef.org/uploads/userfiles/file/file/22524748516.pdf
- http://warraichmeats.com/wp-content/plugins/formcraft/file-upload/server/content/files/160764cd00501c---81007140149.pdf
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160707db0ce502---93355369066.pdf
- http://apvn.info/userfiles/file/95900737624.pdf
- https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/a438511d04abfe91a0ed3df37409b56f/43214373087.pdf
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/e13c753c727d15096adaa768b0c9a283/futumeluviboweg.pdf
- https://tort-art.ru/userfiles/file/94199508562.pdf
- https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/0b8b687021f018b784dee84fde147557/xalikire.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=difficult+movie+names+for+dumb+charades+bollywood
- 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_off00011899.bin6ab1f472c50204642d0cbb2d222eabec53a0ee762373b146fcb0c12a2b09d123 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11899 | 16692 bytes |
font_01_sfnt_off000143fa.bin8ffd8eafbbb557e32ff360ce0ac7e2d52f563ec4d1d93c4a8abcbdafa3a19cbd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143FA | 11248 bytes |
font_02_sfnt_off00015e38.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15E38 | 16792 bytes |
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