MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://tai-yang.tw/taiyang/upload/file/vilid.pdf In PDF document text
- http://netcentricnj.com/ckfinder/userfiles/files/negixunumuron.pdfIn PDF document text
- https://carparts-fixture.com/file/file/vuvixojinunuvuv.pdfIn PDF document text
- https://martas.vodrsport.cz/uploads/files/20977223650.pdfIn PDF document text
- http://indcms.testingmachines.com/images/file/rirerikinazolumowukuj.pdfIn PDF document text
- https://organicfertilizerproduction.com/d/files/noramizoziwidasudawok.pdfIn PDF document text
- https://schachverein-marchhoefe.ch/fcsr/news/upload/file/jetemuzo.pdfIn PDF document text
- http://cokhixnktientien.com/Images_upload/files/24535832097.pdfIn PDF document text
- http://zzps.pl/userfiles/file/lidumakagedizu.pdfIn PDF document text
- https://ph789.com/pinhsuan/files/file/84863873796.pdfIn PDF document text
- https://vyrukrc.lt/userfiles/file/luvuwuvimetiwogurupinir.pdfIn PDF document text
- http://cpghollywood.com/userfiles/files/13675020843.pdfIn PDF document text
- http://www.findvoters.com/userfiles/file/dazode.pdfIn PDF document text
- http://dogalakustik.com/depo/sayfaresim/file/99917383890.pdfIn PDF document text
- http://studiotecnicodavico.eu/userfiles/files/vulige.pdfIn PDF document text
- https://sealordhotels.com/ckfinder/userfiles/files/66898241257.pdfIn PDF document text
- http://robertoantoniz.com/resources/original/file/88875143462.pdfIn PDF document text
- https://grupo-bahia-real-estate.com/ckfinder/userfiles/files/34273387437.pdfIn PDF document text
- https://childrencareandliteracysociety.org/userfiles/files/20176294432.pdfIn PDF document text
- http://yugang360.com/upload_fck/file/2021-9-4/20210904083348840075.pdfIn PDF document text
- https://butzbacher.turnpoint.jo/app/webroot/upload/files/xixemudigivire.pdfIn PDF document text
- http://abnicum.com/files/file/rekofelisalofafuj.pdfIn PDF document text
- https://bestrecycledautoparts.net/images_i/file/28943525138.pdfIn PDF document text
- http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/zalok.pdfIn PDF document text
- http://meta-min.com/files/wizidotegegemavekavupu.pdfIn PDF document text
- https://vico-real-estate.com/ckfinder/userfiles/files/ruzije.pdfIn PDF document text
- https://institut-arabe.org/ckfinder/userfiles/files/kukebetigibubavuja.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=android+to+iphone+facetime+appPDF 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_off0000f1b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B7 | 10652 bytes |
SHA-256: 19858eb78ae406fe6d657ddd9f2affb14428d574ef1264e23b989467c1b844a4 |
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font_01_sfnt_off000109e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109E3 | 19140 bytes |
SHA-256: 3054a7e68ada3987aaca9803dbb2d8f5b19d1155b6c11b77e725935785fdf795 |
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font_02_sfnt_off00013c16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C16 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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