MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
The sample is a PDF file flagged by multiple heuristics, including ML classification and ClamAV, as malicious. It contains numerous embedded URLs, many of which are part of a link farm on disposable hosting, and one specifically targets a remote support lure. The PDF's content, though heavily obfuscated in the provided excerpt, is associated with a remote-support tool pretext, indicating a phishing or social engineering attack. The presence of PDF_URI and EMBEDDED_URL heuristics further supports the malicious intent of directing users to external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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://medvor.ru/uplcv?utm_term=remote+pc+on+android PDF link annotation
- http://geombiagioschettino.eu/userfiles/files/29081891177.pdfIn PDF document text
- http://cjatkinson.com/userimages/52108841016.pdfIn PDF document text
- https://tideandtigers.com/ckfinder/userfiles/files/sivosafuzit.pdfIn PDF document text
- https://jesssmithtri.com/jesssmith/ckfinder/userfiles/files/megitep.pdfIn PDF document text
- http://agppi99.pretty-match.com/upload/files/pobesevevagikofibofajezoj.pdfIn PDF document text
- http://nhatrangpalace.net/app/webroot/upload/files/rewujexubumisu.pdfIn PDF document text
- http://skonasystems.com/userfiles/file/32911100750.pdfIn PDF document text
- https://efficimm.fr/userfiles/files/zijuma.pdfIn PDF document text
- http://dentalclinicbangalore.com/uploads/tekilitigajapaf.pdfIn PDF document text
- https://bazk.info/public_htmluploads/file/24834098937.pdfIn PDF document text
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d9c7568f8b---14056638190.pdfIn PDF document text
- http://motivationandmomentum.net/ci/userfiles/files/64292077565.pdfIn PDF document text
- https://ibrahimkoc.com/images/Media/files/ludaluneniwavixorinodopej.pdfIn PDF document text
- http://ccswcd.com/userfiles/file/18511961330.pdfIn PDF document text
- http://k9careclinic.in/ckeditor/ckfinder/userfiles/files/73417430378.pdfIn PDF document text
- http://amidoux-peintures.com/ckfinder/userfiles/files/88233717774.pdfIn PDF document text
- https://dcmheavyequipment.com/admin/images/file/62930246063.pdfIn PDF document text
- http://drprdesaihospital.com/uploads/mezebajodimenevuxitu.pdfIn PDF document text
- http://www.puhito.hu/uploads/14153791977.pdfIn PDF document text
- http://domplus.su/userfiles/files/38647197839.pdfIn PDF document text
- http://fredericjean.net/oplusco/file/zidovaneromuxus.pdfIn PDF document text
- http://jpsacademy.com/slbdavbatala/userfiles/file/47319579180.pdfIn PDF document text
- http://demo-jesma.shopcloud.es/ckfinder/userfiles/files/guzikojod.pdfIn PDF document text
- https://salondumariagededijon.com/userfiles/file/41604001839.pdfIn PDF document text
- http://huanghels.com/filespath/files/20210903213311.pdfIn PDF document text
- http://fanta-life.com/userfiles/file/77716828085.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f2c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2C4 | 18148 bytes |
SHA-256: f33b0126330e4795b8dd0ddb7bbd4ce9d6ddad632a2d60e706699a1d1837b5d0 |
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font_01_sfnt_off000121ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121EC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013a03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A03 | 10508 bytes |
SHA-256: 3cb7fab6f5277ac8aee3a152f6d254846102bd9d7ad75f65e3e2ea483cbd5d92 |
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