MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URLs, many of which are hosted on disposable domains and appear to be part of a link farm, suggesting a phishing or malware distribution campaign. The PDF structure and embedded URLs align with common techniques for delivering malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 5
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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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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 https://cructi.ru/uplcv?utm_term=vpn+china+pro+apk PDF link annotation
- http://palirna-frydek.cz/uploaded/file/kisefugatofesebu.pdfIn PDF document text
- http://architettosbaffo.com/userfiles/files/lowite.pdfIn PDF document text
- http://hotelrefah4ter.ir/basefile/hotelrefah4terir/files/pakokukafobidozegezebobe.pdfIn PDF document text
- http://huefpdf.org/upload/file/23075577070.pdfIn PDF document text
- http://expertsystemgroup.com/file_media/file_image/file/58729261715.pdfIn PDF document text
- https://emotionalgift.com/ckfinder/userfiles/files/xexujaxemadiv.pdfIn PDF document text
- http://xn--j1aii.su/userfiles/file/rerebewifepugevimadisev.pdfIn PDF document text
- http://intertribo.sk/files/77436752531.pdfIn PDF document text
- https://iskoruma.com/upload/ckfinder/files/putaxewipenap.pdfIn PDF document text
- http://hexindechem.com/upload/files/89107324872.pdfIn PDF document text
- https://maturana.cl/upload/file/14825109231.pdfIn PDF document text
- https://cmottaviproductive.it/uploads/file/misivarizipexinotekome.pdfIn PDF document text
- http://fusen-es.info/yamituki-n/uploads/files/32425910362.pdfIn PDF document text
- http://hatdesechia.com/storage/ckfinder/files/32130665734.pdfIn PDF document text
- http://rayer.cn/d/files/78007836671.pdfIn PDF document text
- https://www.hasmow.com.au/application/third_party/ckfinder/userfiles/files/27868191605.pdfIn PDF document text
- http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/44489424447.pdfIn PDF document text
- http://huichem.com/ckfinder/userfiles/files/fikavesanakutolelakokoxes.pdfIn PDF document text
- https://alternativecarrepair.nl/userfiles/file/6718368651.pdfIn PDF document text
- https://pediatricpotentialsnj.com/PP/PPpng/files/7897718396.pdfIn PDF document text
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613786a240528---kajol.pdfIn PDF document text
- https://papersacksfactory.ae/images/bulk_images/files/8416268237.pdfIn PDF document text
- https://chungangroup.com/uploads/files/202109230809057521.pdfIn PDF document text
- http://saopauloairporttransfers.com/ckfinder/userfiles/files/68610652040.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_off0000d51d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD51D | 20804 bytes |
SHA-256: f1277994c9176e8fb7d69586cf5c06924377f81879846fbb94f2c49e6f0baeed |
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font_01_sfnt_off00010b7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B7A | 10088 bytes |
SHA-256: ce41ead7b8be72a3d881f8c71fcaa510a1779b691eb76ff5060eace73fd5a4d8 |
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font_02_sfnt_off000121de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121DE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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