MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. The embedded JavaScript and numerous external URIs suggest an attempt to redirect the user to malicious sites or download further payloads. The heuristic 'SE_REMOTE_SUPPORT_LURE' indicates the document's content likely instructs the user to engage with remote support tools, a common tactic for social engineering.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://synerhu.ru/uplcv?utm_term=how+to+connect+internet+via+usb+tethering+in+windows+10 PDF link annotation
- https://immsac.pe/sgi_userfiles/userfiles/files/wopadi.pdfIn PDF document text
- http://balletpanov.com/uploads/files/dexipokoxigevametidagek.pdfIn PDF document text
- https://ooobelkom.ru/ckfinder/userfiles/files/76348137502.pdfIn PDF document text
- http://airzo.net/userData/board/file/4572633152.pdfIn PDF document text
- http://yoga-privates.com/yoga-privates/file/50308043248.pdfIn PDF document text
- https://valleyrentals.com/userfiles/file/zibeka.pdfIn PDF document text
- https://kawanmto.net/contents/files/ziguse.pdfIn PDF document text
- http://jingluo.net/uploadfiles/files/71239937093.pdfIn PDF document text
- http://kaupa.cz/userfiles/file/15887258776.pdfIn PDF document text
- http://talcmanagement.com/uploaded_files/userfiles/files/76253550864.pdfIn PDF document text
- https://repare-ton-smartphone.com/userfiles/file/lajatatuwonikifugebekuj.pdfIn PDF document text
- https://www.auto-ecole-acm.com/ckfinder/userfiles/files/29874972740.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/94737ceffff15349fb9bcb600d6050b3/nawidasopuperajodel.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/04e0bcc88e562905f7add198d74c8fc4/fugor.pdfIn PDF document text
- http://diadiemvui.com/upload/files/gupagevufavimapekomaw.pdfIn PDF document text
- http://pn-tech.net/userData/board/file/75078622509.pdfIn PDF document text
- https://www.poolsrus.com.au/application/third_party/ckfinder/userfiles/files/gewanokafopufidabo.pdfIn PDF document text
- http://www.colormotion.cz/UserFiles/file/rutanerexu.pdfIn PDF document text
- http://lexus-custom.com/js/upload/files/mivupajikifolanogotugi.pdfIn PDF document text
- http://emailreceptionist.net/userfiles/file/gunojoso.pdfIn PDF document text
- https://tempatpasang.com/contents/files/zezipulowelaromimaf.pdfIn PDF document text
- http://lnv-cnc.com/userfiles/file/81450041993.pdfIn PDF document text
- http://milkyway-vn.com/upload/files/xonotodeg.pdfIn PDF document text
- http://nakamurasangyou.jp/app/webroot/uploads/files/dozurunovowibolaboral.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_off0000da9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA9D | 17300 bytes |
SHA-256: 336d6905254807e8f72c13a457923839c0d742b0d6f7ff6521fa1646680e2ab9 |
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font_01_sfnt_off00010764.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10764 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011f7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F7B | 11160 bytes |
SHA-256: dada4b0dc89618ad0bf8840561d30e3a81bfc1d8f7dfd786a27708ee2dbf5fad |
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