MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple external URLs, some hosted on compromised WordPress sites, under the guise of a download. The presence of embedded URLs and the 'SE_DOWNLOAD_BUTTON' heuristic suggest a phishing or social engineering lure to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://krisoc.ru/uplcv?utm_term=fallout+3+complete+map
- https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/gupg8iikgqp9agf7tupjgq1j3n/26842876692.pdf
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/6b3c13804dbd5a5890ecbe6eb13144ab/jegaxesolexo.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/fkqq83cjqkv0aro2hnoc58gc52/57476693074.pdf
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/d2f59ca8e12687761c05c54816f33f86/77163032444.pdf
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/960cb632f782ce257553f2e450683ed2/88580338918.pdf
- https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/16c894c45eab26c3cfbd2f948db06dff/zuraxobodifapamipadomip.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160747f3086d87---75730399268.pdf
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/be9c6ca93c171da816912fdcc1454ff8/rabavoto.pdf
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/452830dae3867da4448c45cff04a9187/89499072648.pdf
- https://xn--80aaa1arbfjoe3bzh.xn--p1ai/data/files/zowufeguxodizusolusuwa.pdf
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a061db3d0---nonuparoline.pdf
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/160ad9faf63010---33557159612.pdf
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/nuqnv1o1qd04n5p9h8urf337rc/wizeleva.pdf
- http://yejida.com/userfiles/file/gomusar.pdf
- http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/4kcea6dlgik2306mlimtnq5m1u/kinufezaxebiwekabubi.pdf
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1609f7c96e5752---25046554804.pdf
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608a1b479e678---79373361917.pdf
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/16072cf3d30ef4---52286428053.pdf
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0a9fc6b77---91258044406.pdf
- https://jbdclothiers.net/emailer/userfiles/file/80496405338.pdf
- http://sl-light.ru/design/img/upload/file/63377245202.pdf
- http://dancephoto.ru/userfiles/files/saxoxamozilewejajewal.pdf
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/2f9a6c13ade6b196ddeb4d61d4c19088/1585569212.pdf
- https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/e1bibeqakqbqmb8ft7upriikdv/dewemebopowibevulovon.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_off00010465.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10465 | 16792 bytes |
font_01_sfnt_off00011c77.binca4080ad24f38b28c9afc8683a42db8a8f982657d25e9eb2699f52a57f453dc2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C77 | 17056 bytes |
font_02_sfnt_off0001491c.bin2a960fb9f0a7af6475ef2e7ac00f3eceffd3c85c9d21e0df1be9f001c0972a13 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1491C | 10320 bytes |
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