MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm with numerous URLs pointing to potentially compromised websites or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this, as these rules identify patterns associated with malicious link farms.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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 http://vet-arrighicolangelicristilli.eu/userfiles/files/15615571796.pdf
- https://www.aifimm.it/admin/inc/ckfinder/userfiles/files/97407291996.pdf
- http://tobn56.com/UpFiles/file/jovedi.pdf
- http://123dvere.sk/files/file/18269242242.pdf
- https://karapinler.com/calisma2/files/uploads/54040097142.pdf
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/7ace286a3cd3dd0b63c2e544e1ddffe1/wuzorenesirurubi.pdf
- http://ticaproduce.com/ckfinder/userfiles/files/95351858399.pdf
- http://exhibitionchannel.com/upload/julex.pdf
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/aac3720c531709d04a630e4cc5ce05a4/zigugipukejofalasixegagim.pdf
- https://digireg.ch/upload/85400903409.pdf
- http://uitetenindex.nl/images/uploads/moxirif.pdf
- http://stacjaregeneracja.pl/userfiles/file/dageromavo.pdf
- http://chatyzvule.cz/uploads/37353113967.pdf
- http://kirsanov-maslo.ru/uploads/28558336219.pdf
- https://vetamblj.si/ckfinder/userfiles/files/danizoxekerot.pdf
- http://extintoresorigen.com/images/editor/86393718895.pdf
- http://maxidmum.com/images/upload/fck/file/98737985341.pdf
- http://fw-simple.com/uploads/files/40676445440.pdf
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/pp987rdp84bmcmqkpo73d9taji/nolepib.pdf
- https://infrastone.com/userfiles/files/18705390994.pdf
- http://articolo17.it/siti/usr/foto/files/jujakakupukegedaned.pdf
- https://cosonnguyenthanh.vn/webroot/userfiles/files/8045991186.pdf
- https://jagamimpi.com/contents/files/30214387483.pdf
- http://sibleyestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fuxomigujakitome.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=you+again+full+movie
- 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_off00010345.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10345 | 16792 bytes |
font_01_sfnt_off00011b5c.bin734e5fe1c292b1b7e6cec57c4c2a08e43b2b6e3c68c03a428469d834593e303f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B5C | 10340 bytes |
font_02_sfnt_off000132ab.bincc42fbec5ed4aa8d620da3f30b485c72ab7810ca2702ccafa91d014fd380b0a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132AB | 17800 bytes |
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