MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable domains, suggesting a link farm designed to distribute malicious content or manipulate search engine results. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure.
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 http://vladjurnalist.ru/archive/file/kobonemenixuzutaras.pdf
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6c9f010e9d---1426587463.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/ccb7f59bead34ba99f4a1a06f4ddbacb/nokew.pdf
- http://vorne-sitzen.eu/pcms/content/file/zadimapida.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/08456d76a804a73e46596de096fb40e2/daxetopudumudunuramijipad.pdf
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/8bc69iptaf39s3hu3ug3iqt5d7/zesatotagizoxarujup.pdf
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/36c29331675f6a9584a90ff1a6e5a3ec/26208371362.pdf
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160804fecd26be---22879965412.pdf
- http://mbcasc.net/imgs/file/28504086088.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160733e629704b---17336659463.pdf
- https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/a3lt8ol5uoau2pggf89au2a420/xitijukiwunufexe.pdf
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/375cec7450679a79d78abddfb06f3a7a/73458328718.pdf
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098e4d6cb31e---vopefufanisok.pdf
- http://candientushinko.com/images/file/19532323495.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/j8h15t1d673s2oh3tq3uc2it84/jariluzudoruf.pdf
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/9de2a55a28fc68fafe3a1d748d3eac27/mawejakumoxugexikogesadu.pdf
- http://studiotecnicodama.it/userfiles/files/94229426737.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc6171e0e7c---merimifegum.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160bff900c2d30---79098206116.pdf
- https://paperland.bg/uploads/file/wotid.pdf
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099ac2377917---92826000237.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=cheapest+days+to+book+flights
- 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_off0000f120.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF120 | 16792 bytes |
font_01_sfnt_off00010932.bin0839317c214d497e4dab0503fa8e42594773011a9f8beca77c3700311bd348dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10932 | 17180 bytes |
font_02_sfnt_off000135fa.bind13231b3a918876ba1146834425f0dfae2b32b4469eb95d2e8195a6d9c8a0cb2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135FA | 10952 bytes |
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