MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded JavaScript stream and numerous external URIs, including one pointing to a raw IP address, suggest the document is designed to redirect users to potentially harmful websites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports that the document acts as a link farm on disposable hosting, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://infrive.ru/uplcv?utm_term=free+3d+screensavers+for+android PDF link annotation
- http://greenworx.eu/images/uploads/files/48989227123.pdfIn PDF document text
- https://winstar-tools.com/UserFiles/editor/file/40995186360.pdfIn PDF document text
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/16142283a194f9---malipake.pdfPDF link annotation
- http://www.colormotion.cz/UserFiles/file/47648362440.pdfIn PDF document text
- http://ninda.vn/userfiles/files/75431932871.pdfIn PDF document text
- http://e-instar.com/userfiles/file/77593692121.pdfIn PDF document text
- http://sz-nuoyi.com/Upload/file/2021091605221370059.pdfIn PDF document text
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed54979706---9395227053.pdfIn PDF document text
- https://hamzsabegi60szallo.hu/UserFiles/File/suwujanimoropato.pdfIn PDF document text
- https://livbiopharma.com/userfiles/file/78827161026.pdfIn PDF document text
- http://yaan121.com/uploads/files/202109070423554878.pdfIn PDF document text
- http://www.schule.havonix.com/ckfinder/userfiles/files/72548210689.pdfIn PDF document text
- http://makinsushi.com/uploads/files/favorasijadomavironirupe.pdfIn PDF document text
- http://stellarvvv.ru/ckfinder/userfiles/files/pekuvosidekuzim.pdfIn PDF document text
- http://szhlfz.net/upload/xiguzigisanokutiwi.pdfIn PDF document text
- http://sm.ac.th/ckfinder/userfiles/files/negupepeta.pdfIn PDF document text
- http://jjburgerut.com/uploads/files/luwefegegovu.pdfIn PDF document text
- http://bc-arman.kz/ckfinder/userfiles/files/lolenirukegivad.pdfIn PDF document text
- https://dm288.rs/slicice/file/sezeridemudobaz.pdfIn PDF document text
- http://intimatehotelpattaya.com/image/upload/File/lanofufure.pdfIn PDF document text
- http://medicom.pl/userfiles/file/97083556847.pdfIn PDF document text
- http://dwallacelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/38997944044.pdfIn PDF document text
- http://ratchee.com/ckfinder/userfiles/files/87898003168.pdfIn PDF document text
- http://garagehayashi.com/js/upload/files/damugilakosa.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_off0000bd45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD45 | 16440 bytes |
SHA-256: 86ae63f804e1f0dba72cc550a819a93159ee351a50dd6a09ae94a04a903bb6f7 |
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font_01_sfnt_off0000e746.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE746 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ff5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF5D | 10540 bytes |
SHA-256: 22aac29cb1c6a578c2afcf347003d9e1a8ae0afcc4fdd09971e8b7180ce8265d |
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