MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. Static analysis revealed it functions as a link farm, containing numerous URLs pointing to various domains, many of which are hosted on compromised CMS uploads or disposable hosting. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a deliberate attempt to create a network of links for SEO manipulation or to distribute malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://hvezda-pardubice.cz/files/file/nevopewen.pdf
- https://megatekspb.ru/sites/default/files/uploads/97655222874.pdf
- https://santchavarabed.in/ckfinder/userfiles/files/nokutixuzujexafid.pdf
- https://abhrian.com/userfiles/files/gasalezagomaxarajesu.pdf
- http://nedvizhimost-v-sharm-el-sheikhe.ru/uploads/files/39555289968.pdf
- http://costanzolegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gutapajuvidiruzemor.pdf
- https://rimsball.com/ckfinder/userfiles/files/dojexirovov.pdf
- http://ozcetinler.com/userfiles/file/tefavexevigufitaxex.pdf
- http://droneducational.com/admin/userfiles/file/nupuvirusinavonotawabomax.pdf
- http://xenangheli.vn/public/files/92770274940.pdf
- https://hankilfood.com/userfiles/file/20210908082034.pdf
- http://metabolitplus.ru/files/file/befikuligigozifeferidevi.pdf
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161332942004b0---51026663995.pdf
- https://banghenails.com/upload/file/45029012661.pdf
- https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd23c48ab9---60297274211.pdf
- https://betsin.org/userfiles/files/13017960664.pdf
- http://crmrealty360degree.in/ci/userfiles/files/56613193235.pdf
- http://jorkurojus.com/userfiles/file/46113228123.pdf
- http://tomdythai.com/userfiles/files/43548572904.pdf
- https://cicasoftavukatwebsitesi.demowebsiteleri.com/upload/files/66589156550.pdf
- http://bjerkelunden.org/content/files/userfiles/file///tokuwajujanusetavabiza.pdf
- https://ginecologmuresan.ro/ckfinder/userfiles/files/47042742416.pdf
- https://novamakine.com/upload/ckfinder/files/safolojo.pdf
- http://dreiseengrundschule.de/files/wefonanen.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612ecd97b7577---79217771290.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=pirn+games+for+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_off0000f063.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF063 | 16792 bytes |
font_01_sfnt_off00010875.bin6fab2bbc41978ea64615899d1d9f1c534b38897f58fdb834764118befff09107 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10875 | 17256 bytes |
font_02_sfnt_off00013503.binf87ed5847cb79c8fb2c6f64f55cf5ebb22c464d57cd7420e889ef2bafac7698f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13503 | 10556 bytes |
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