MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised WordPress sites acting as a link farm. The primary purpose appears to be SEO poisoning or directing users to potentially malicious content through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16081a63d65b2e---26739351271.pdf
- https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/4402b7bc8311d0b8db70d586e149f905/gowavamison.pdf
- http://polymer-optix.de/userfiles/file/95986101089.pdf
- https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/e29e588f52b267bb5a66ad54d8b51ef5/gabuvezawinofobineku.pdf
- http://ros-grad.ru/fck_editor_files/files/380858719.pdf
- http://freetds.net/userfiles/file/lisojogizamipo.pdf
- http://ruegen-ferienhaus-schneider.de/userfiles/file/rusamufesurewumagivowoja.pdf
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/82d2b1182d529efe4bca54f827fd51db/42458498636.pdf
- http://dekoblickfang.de/userfiles/file/webademilafipumebugoban.pdf
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/16091a54085666---jedex.pdf
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/3d2hd904c4aehee9lo9uc6etu4/98784936900.pdf
- https://bamor.org/userfiles/file/larerelid.pdf
- http://www.alrafeef.com/faisaliya/js/ckfinder/userfiles/files/5859001316.pdf
- http://alnoorcity.com/userfiles/file/gigujitar.pdf
- http://biotop-zamosc.pl/userfiles/file/25084048961.pdf
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/n5io2giooojou90fvglrr305k0/fepopunuxojifepe.pdf
- http://jiab.net/userData/board/file/wikekixuw.pdf
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/c086f84e2578c0b136920e03d64b0a46/nelasamope.pdf
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160901b97338b0---vosegakupe.pdf
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ffb6294fc2b---83365851646.pdf
- http://kopdesign.nl/userfiles/file/midisisagabugodisa.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16100bbb7adc58---64623244598.pdf
- http://southwest62.com/clients/6/66/666176aa584decdbf8d0f1e9213c5ee1/File/76911612675.pdf
- http://myphamhelios.vn/luutru/files/87056413529.pdf
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/13c889f5868ddb651b6f3d673c86255e/55599273846.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607e82cf7fdec---7160124225.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=mazya+swapnatil+bharat+essay+in+marathi+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_off0000c8f4.binbe5a342c4166ff87fd085e8faa23a74ceca8a66060811189647b2b28de2cb7ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8F4 | 11036 bytes |
font_01_sfnt_off0000e24b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE24B | 16792 bytes |
font_02_sfnt_off0000fa5d.bincd7800d76a6dc5152e41c1ec3ca73248a907fda9f68a24fea9bfef7060717014 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA5D | 19792 bytes |
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