MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics, including ML and ClamAV, indicating malicious content. It contains a link farm with numerous URLs pointing to potentially compromised websites or disposable hosting, suggesting an attempt to distribute malware or conduct phishing. The presence of external URIs and a link farm on disposable hosting strongly supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://tlxzkj.com/uploads/file/232323011656.pdf In PDF document text
- http://american-security-inc.com/assets/ckfinder/userfiles/files/38316120011.pdfIn PDF document text
- http://poexali.org/static/image/_u/system/files/44597251711.pdfIn PDF document text
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/akrhlr2rb8imgtplp13aon0er6/puximu.pdfIn PDF document text
- https://successalpha.team/upload/files/ginugagi.pdfIn PDF document text
- http://be-now.pl/userfiles/file/xikunem.pdfIn PDF document text
- https://chameleoncoupons.com/adgprocessing/uploads/files/50198698540.pdfIn PDF document text
- https://ssmahavidyalaya.org/lion/uploadedfiles/fck/files/file/bitasamatasilafoxaxuk.pdfIn PDF document text
- https://jordanadams.com/ckfinder/userfiles/files/82112491398.pdfIn PDF document text
- http://ingore.cn/upload/files/45198045038.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1614d17beae92c---81572119794.pdfIn PDF document text
- http://taiwanquinoafamily.com/shopadmin/upload/files/61125328856.pdfIn PDF document text
- https://dammesliepas.lv/ckfinder/userfiles/files/kedajinugut.pdfIn PDF document text
- http://xahscw.com/userfiles/file/88406088950.pdfIn PDF document text
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613565a0abaf3---25651979597.pdfIn PDF document text
- http://eros-arena.de/eros/userfiles/file/nekutekunofixavum.pdfIn PDF document text
- http://esistore.lu/userfiles/file/fakavajozufaximid.pdfIn PDF document text
- https://nepalmicrofinancesummit.org/userfiles/files/mukikinas.pdfIn PDF document text
- https://santchavarabed.in/ckfinder/userfiles/files/wawevudegalivo.pdfIn PDF document text
- http://myucpb.net/userfiles/file/92556988003.pdfIn PDF document text
- http://yotlist.com/uniformkontakt/userfiles/image/files/gosuxawi.pdfIn PDF document text
- https://ms2gacor.com/contents/files/ruwexewomejatutevefutuv.pdfIn PDF document text
- https://takarasushimn.com/userfiles/files/70838260778.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=justin+bieber+feat+ludacrisPDF link annotation
- 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_off0000e47f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE47F | 10580 bytes |
SHA-256: 276a893cbae9768aebc97f13fc17bdbf2217623212323d9c79521fd45298ad69 |
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font_01_sfnt_off0000fcce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCCE | 19904 bytes |
SHA-256: 0b269e7928208d2b2d9de34b02dd9322273c9355ff47d33605aebcee33eaac56 |
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font_02_sfnt_off00013051.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13051 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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