MALICIOUS
156
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. Heuristics identified it as a link farm, with numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of embedded URLs further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://laborke.ru/uplcv?utm_term=what+is+the+meaning+of+legal+tender
- https://m-astar.com/UserFiles/files/sapil.pdf
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/7b8b657c7305b58a88e9fcd6c76806b7/86032516710.pdf
- http://cokhiminhhien.com/media/ftp/file/66488882577.pdf
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ae05de998fa---mufubalogiwakalivoset.pdf
- http://euroteam.vn/ckfinder/userfiles//files/kanefanuru.pdf
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/6f047aa497f04ce0797956e7dbb7c05a/kugepamusejibegeto.pdf
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094dd850ca35---12228534009.pdf
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/a1d3c064fa5ca4dd283646a4324070a9/tesamig.pdf
- https://gazelletr.com/userfiles/files/31318424835.pdf
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/a05918c9802dc26d0928554dea5f0b5d/sixolitikiwuxiwuvonubopen.pdf
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//bodogigek.pdf
- https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083b617506f7---58601734981.pdf
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b2004bc278---20237286936.pdf
- https://clubforeducation.com/FCKeditor/userfiles/file/bepetufadivipipigitimuki.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080f5f43b9da---janujazoseliwoxa.pdf
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/497a60ad4f319b09aa811431d772b2b4/katilurofirimo.pdf
- http://autobedrijvenindex.nl/images/uploads/56876803856.pdf
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3mgtns6kl5878s3ehnb4psuom3/nafukadupos.pdf
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bacf80ba07---71709181852.pdf
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609ed6007847b---49414285056.pdf
- https://tranthachcaodanang.com/uploads/image/files/lukopejotibodivapesi.pdf
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b53005189f9---28206914108.pdf
- https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/093eea272600a3d7d979d2a635c79861/difunesisojipir.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_off0000f6e3.bin6a9a0143949db63318bd42ec803ae8534f8da61f07d9ccc078663c6b5c54df97 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6E3 | 18088 bytes |
font_01_sfnt_off0001260c.bin80ad20565830a8e18fee82f8d287545a4de6567f7790c9387c39c6bb100c95ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1260C | 10792 bytes |
font_02_sfnt_off00013e81.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E81 | 16792 bytes |
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