MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links to external websites, many of which are hosted on compromised CMS platforms, suggesting a link farm designed to distribute malicious content. The heuristic 'SE_DOCUSIGN_LURE' indicates the document impersonates a signing service, a common tactic for phishing or malware delivery. The ClamAV detection further confirms its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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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Document signing service impersonation lure medium SE_DOCUSIGN_LUREDocument impersonates DocuSign, Adobe Sign, or a similar signing service in a signing-request context
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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://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/f270c1e92e4fc002a649efbe9271f044/820461214.pdf
- https://munord.com/wp-content/plugins/super-forms/uploads/php/files/10c7ea7c28df49482c1c143317e0b999/kazufagekuzo.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/63ij8fosr8pajl13hgdrkck5d0/rusumodeputapuguxezewedir.pdf
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b4f432ed1f---senabipigofunosebonul.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/n5tefmimdbhgjini0lq7fenvs4/34514913213.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160a71f2fce7c9---zenokasewave.pdf
- http://best-infosystems.com/userfiles/file/motoluzesizu.pdf
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/6142a61f4627dcfe021c4663a3da702c/84007004249.pdf
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be0c825dc9b---75411980912.pdf
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608cec26c120e---parobazuzovozaxewakegi.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/jniqm5a86s3ljhrkf77l8dv7c7/1186671525.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607592709679e---9664182269.pdf
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a58659c6f3---52459948621.pdf
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbd1a52c76---zopukugugorifavileteb.pdf
- http://esipro.fr/userfiles/file/78626164477.pdf
- https://leresto-niort.fr/images/userfiles/files/83183307356.pdf
- https://genegurumiraclehealer.comuserfiles/file/5408761250.pdf
- http://youandisagenix.com/ckfinder/userfiles/files/tojila.pdf
- https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/db1085b17959c21515e30887ca41b033/totumifebobilatigoxizado.pdf
- http://xn--vb0b83rba554gca.kr/page_data/file/20210613163537.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a17cd531325---zibofinesareza.pdf
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae04d6957f---43797231287.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=how+to+add+signature+to+pdf+on+ipad
- 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_off0000e790.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE790 | 16792 bytes |
font_01_sfnt_off0000ffa7.bin3c9e1140d0f2b455a9e095bca1aa5128bdda865f5b212beb68fc09c57a65ed86 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFA7 | 10804 bytes |
font_02_sfnt_off0001187d.binafe8b15048e9970bb99a0da897769f4a32116092071e30128cfec9ee676926e6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1187D | 17040 bytes |
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