MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains numerous links pointing to compromised CMS uploads and disposable hosting, characteristic of a link farm. The embedded URLs, such as 'https://irlanc.ru/uplcv?utm_term=get+followers+for+instagram+app+apk+download', suggest a lure to download potentially malicious content or engage in phishing activities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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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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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://irlanc.ru/uplcv?utm_term=get+followers+for+instagram+app+apk+download
- http://wellogo.in/userfiles/file///93874630058.pdf
- https://hamzakocakoglu.com/userfiles/file/kefodajufuto.pdf
- http://eltdb.com/UserFiles/files/66717051252.pdf
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/sou7ao9e09vkh6dhhrdnenvfkh/xejerof.pdf
- http://geose.ru/userfiles/file/27533164692.pdf
- http://istanbulballoons.com/ckfinder/userfiles/files/77930109829.pdf
- http://am-assets.com/aom/magnolia/userfiles/file/94978822349.pdf
- https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/547eeb3770148f512000c56d95c6c5fa/winixubitesarakosipefe.pdf
- http://kimbuunguyen.com/uploads/userfiles/file/ziridewarupibarexetasom.pdf
- https://menlopark.com/wysiwygfiles/file/43474907657.pdf
- http://gugugroup.com/userfiles/bakope.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9abb863818---81072060100.pdf
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16075f28cdf482---75426030723.pdf
- http://chinajnbt.com/images/upload/File/58816562662.pdf
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/47d7d640727770581ef3385816cc6808/8118856562.pdf
- http://healhumanity.foundation/userfiles/file/89735579909.pdf
- https://majubesar.info/contents//files/25021822460.pdf
- http://mega.kz/media/upload/files/88002346939.pdf
- http://growlink.biz/userfiles/file/97620605189.pdf
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082d297a19f8---nudodorezefidofa.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b03f1e9b8bf---17299082204.pdf
- https://promise-land.com/upload/file/tafezatigexov.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1606c953aa2eb2---nifazajoruduzezije.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_off0000dbdd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBDD | 16792 bytes |
font_01_sfnt_off0000f3ef.bin3afb5f59e1d6b1e64990151f957fccd1b0cd33bf5d5d2c74cc4e5a948631cb3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3EF | 16632 bytes |
font_02_sfnt_off00011efa.bin20cfe62dd872245712cc0e7b7fdd2638f981c892724fdb0fa453578d11ea23a2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EFA | 11056 bytes |
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