MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains embedded JavaScript, which is often used to execute malicious actions or redirect users. The presence of a link farm pointing to multiple disposable or compromised domains further supports a phishing or malware distribution intent. The embedded JavaScript likely facilitates the redirection or payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://iwistw.com/upload/files/52269296221.pdf
- http://garagehayashi.com/js/upload/files/63589933583.pdf
- http://www.s4b.nl/upload/files/92890775828.pdf
- http://kernenshepler.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/71449636021.pdf
- https://joebalogh.ro/imagini_ws/79557148310.pdf
- http://cabini.it/userfiles/files/fobusozenupegisakanogekes.pdf
- https://aquarell.ro/userfiles/file/97153193791.pdf
- http://konferencii.org/web/uploads/assets/file/73800601266.pdf
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/05be139fd3068e2ba383d5ce83f05b47/24927584769.pdf
- http://rc-mst.com/mst/_upload/files/49714299155.pdf
- http://donovaly-ubytovanie-safran.sk/web/userfiles/file/tiwevur.pdf
- http://rydelko.eu/userfiles/file/52492088296.pdf
- https://hoangnhataudio.vn/media/files/62069868187.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9028c831f---7330577664.pdf
- http://chip-chup.hu/upload/file/4185727223.pdf
- http://www.anclupnapoli.it/userfiles/file/daxetajegokifusone.pdf
- http://rsentco.com/upload/file/40123535474.pdf
- http://miwon.com.vn/app/webroot/uploads/files/rojenuzuvukuvonojalile.pdf
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/eeb6fa69e7828b9939f8530da313eb92/zakakorafowegopidigodax.pdf
- http://hwangtosidae.com/userData/ebizro_board/file/80481072258.pdf
- http://arniuniversity.in/ci/userfiles/files/nebopepanofefemed.pdf
- http://prosefkuchare.cz/userfiles/60186736217.pdf
- https://ruxthai.com/ckfinder/userfiles/files/rabidupo.pdf
- http://ymjgolf.com/file_media/file_image/file/dupejeputuwudibofewaka.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=custom+maid+3d+android
- 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_off0000bc7b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC7B | 16792 bytes |
font_01_sfnt_off0000d48d.bin6e7fc7b06778428f361f8dac96ab14ba0c102ba95386e04c4b09ad319093d09c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD48D | 18068 bytes |
font_02_sfnt_off000103ad.bin41e16b8694e3c719773074644ddb140b5cd026180aa7c2ab4918ad99636173c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103AD | 10536 bytes |
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