MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised websites and disposable hosting, suggesting a link farm or phishing lure. The PDF structure and embedded URLs point towards an attempt to redirect users to malicious content, likely for further exploitation or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://arerp.kr/data/file///taroxepasena.pdf
- http://bigxra.com/uploadfile/file/2021062014525673499.pdf
- http://capmar.eu/userfiles/file/92849574305.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/16071df20c91ed---nulejikaxubomixoxudo.pdf
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e3ab9d52cb---10341726061.pdf
- https://solidpractise.com/files/userfiles/file/75669476675.pdf
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/fcc49cabc6a7e96df9f3427bfe340f73/folovexexizarolanir.pdf
- https://zahnersatz.pl/userfiles/files/99016033852.pdf
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/c3d7ad0f6d8f9b80187a8d1608c50943/29986812397.pdf
- http://cuakeobinhduong.com/upload/files/pufolelamivugotebamazu.pdf
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c568ecbdb29---serobovabupuneluxake.pdf
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16082a10439660---30320891175.pdf
- https://alianzatours.com/imagenes/file/sajezivaderozegijo.pdf
- http://woodwork.pl/ubezpiecz/obrazy/file/xedonedana.pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac9e7111d4---36132243578.pdf
- http://parvazyab.net/basefile/api203/files/37251321517.pdf
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/7a16d9d5e52f08314dbb62dba86cf810/kunevejefu.pdf
- http://sskj.pl/userfiles/file/mogiludijuvakoraweva.pdf
- http://aiskreunion.com/clients/b/b4/b417c2091670ce0b0d78f4b231aea02c/File/79341326531.pdf
- https://tenekedjieva.com/uploads/file/josuzazijabewapijirugovi.pdf
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/30968c83d764aa77b8ae4446017abd0d/bigimab.pdf
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/015010b52aa6f52051f197696dcbc060/vaxuwidujodamegelavisaj.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160791bb5eb535---berewabe.pdf
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c417d61af1f---25701745257.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dea8db7c2d---79999019180.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=thank+you+in+advance+for+your+assistance+in+this+matter
- 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_off000105cc.bind6d687e65aa2951ad70dd1874f08a043b30e351a6a39ac0a2a252912347c05a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105CC | 16480 bytes |
font_01_sfnt_off00013026.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13026 | 16792 bytes |
font_02_sfnt_off0001483d.bin95e4ac44fd92fea07f2c8bdc10dbd151ca00e8a8ad297180156466515617fdc5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1483D | 11032 bytes |
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