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 functions as a link farm, with numerous URLs pointing to external sites, including one hosted on a compromised CMS upload directory. The document body is unreadable, but the heuristic firings strongly suggest a phishing or malicious redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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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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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://barbusci.it/maisUserFile/file/89807611485.pdf
- https://airflow-skateboards.com/upload/file/35077241427.pdf
- http://slsnn.ru/content/file/fadafivivax.pdf
- https://aradovan.com/userfiles/file/2211265801.pdf
- https://hygradeinsulators.com/images/uploads/file/18094055637.pdf
- http://ccspatti.org/userfiles/file/fegolusuxituzaxesef.pdf
- http://changwontour.kr/FileData/ckfinder/files/20210723_F09674B131F21FB2.pdf
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d24c7193439---87615814870.pdf
- http://yuhongzg.com/d/files/turunobaduxesuge.pdf
- http://ranaghatpchsschool.org/userfiles/file/74196137195.pdf
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/g8fl19ckjjgoqs73f1n8b87ekd/mofumavozap.pdf
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/4s9p908kilrb15ggleiursei47/gafefabixekuxinenukuwakef.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/16071b4cfc81f4---25440351970.pdf
- http://seanmore.com/userData/board/file/47761119960.pdf
- https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/df34104f8fcce19c89b9866fffe3c3d3/dokuzetaxupejelerex.pdf
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/7q4rm019qsavln8mv6dfooo851/gobirarax.pdf
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/2fc8dc5229ea7397e5a3477eec913f67/61303939366.pdf
- https://eravukappalpalli.com/userfiles/file/saripadovewasadodopibunu.pdf
- https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/d2d18cc4ba41a984be34d7766ce5dd7c/mimekabewiredoni.pdf
- http://pogotowienaukowe.com/Upload/file/98851440740.pdf
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087391df02dd---94638377258.pdf
- http://boxerdapolenta.com/cmsimple/images/file/1254437045.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=good+fettle+meaning
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d83d.bine11021df76ebaeb4b937d7cdfc73e0cdb679f51ae9adc0708c4e75cbb47ab867 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD83D | 2340 bytes |
font_01_sfnt_off0000e2a5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2A5 | 16792 bytes |
font_02_sfnt_off0000fabc.binf45fe4e81bf889ddd3e76b4585f8dd80104a821abe31c142b5ae44def10f6992 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFABC | 10468 bytes |
font_03_sfnt_off0001124b.binadd61fb2d8d521c7f82a2265abb9a0f97d75124fcf56c9e660eda7f12d3da47e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1124B | 17536 bytes |
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