MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of numerous embedded URLs, including one identified as a link farm on disposable hosting, suggests an attempt to redirect users to malicious sites or download further payloads. The heuristic 'SE_DOWNLOAD_BUTTON' further supports the lure-based nature of the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://tatnhapkhau.com/ckfinder/userfiles/files/tupofawifepoxapufuvozit.pdf In PDF document text
- http://cornucopiafrederick.com/uploads/files/84037917219.pdfIn PDF document text
- http://sunrui-ti.com/d/files/91076431652.pdfIn PDF document text
- https://xenang-mitsubishi.com/fckupload/file/moromujuw.pdfIn PDF document text
- https://www.bbmnetlicitacoes.com.br/cms/ckfinder/upload/files/bamumubapijitix.pdfIn PDF document text
- http://xn--80akazwaeiw.xn--p1ai/editorfiles/file/79395767438.pdfIn PDF document text
- http://vdavloeren.be/userfiles/files/tigogenusuvanuxama.pdfIn PDF document text
- http://www.addvanceo.info/userfiles/files/wonamolak.pdfIn PDF document text
- http://jinyudachem.com/upload/files/zigiwanu.pdfIn PDF document text
- https://angelsstaff.com/uploads/file/nolenemosinusodotimixi.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1613aae6675211---93335451324.pdfIn PDF document text
- http://donghozibistore.com/luutru/files/10504853361.pdfIn PDF document text
- http://yizhu580.com/ckfinder/userfiles/files/vuvixinesuso.pdfIn PDF document text
- http://klientskazona.radeton.sk/ckfinder/userfiles/files/90677705980.pdfIn PDF document text
- http://turksebruiloften.nl/userfiles/file/12131848020.pdfIn PDF document text
- http://aygroupmuh.com/image/files/mazibewikusenega.pdfIn PDF document text
- https://sayurmateng.com/contents/files/tujosedipavopurazufanufes.pdfIn PDF document text
- http://ydyb.com/filespath/files/20210905124949.pdfIn PDF document text
- http://ozdoby-betonowe21.pl/Upload/file/larojufupakazino.pdfIn PDF document text
- http://veganogle.es/uploads/ckfinder/files/12691896113.pdfIn PDF document text
- http://pol2-simf.ru/userfiles/file/genopenikebe.pdfIn PDF document text
- http://cbcom.fr/ressource/site-image/files/tafezimamenamune.pdfIn PDF document text
- http://thaoduocvn.com/userfiles/image/file/17028977370.pdfIn PDF document text
- http://lnv-cnc.com/userfiles/file/47754617604.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=tvb+super+apkPDF 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_off0000bcf8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCF8 | 10148 bytes |
SHA-256: c3f2dd941c20570e39096763221e41e4100ec25fd52b909e6cd234e497ae30c0 |
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font_01_sfnt_off0000d3a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3A0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ebb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBB2 | 17268 bytes |
SHA-256: be955aff3eab3f7987ee27401c3a3a8204097ca8af4454c0c4cdc5ac8ff11fbd |
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