MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristic firings point to the document acting as a link farm, directing users to multiple disposable domains, with one URL specifically mentioning 'booster for android optimizer & cache cleaner', suggesting a potential lure for malicious software downloads or phishing. No scripts were extracted from this sample, but the structure and embedded URLs strongly suggest it's part of a phishing or malware distribution campaign.
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://garglob.ru/uplcv?utm_term=booster+for+android+optimizer+%26+cache+cleaner PDF link annotation
- http://asea-admin.com/_userfiles/file/20210909183105.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16134d4842ea58---pawofepupumutepopuwakaba.pdfIn PDF document text
- http://elektrostroy.kz/ckfinder/userfiles/files/gobavufokowa.pdfIn PDF document text
- http://modaxch.com/userfiles/files/8402077322.pdfIn PDF document text
- https://xn--psg-9lac.hu/files/files/55194763673.pdfIn PDF document text
- http://dc-a0dcf319a153.breakthroughsport.com/userfiles/files/36010643278.pdfIn PDF document text
- http://ed-union05.ru/files/file/dimuziwevelajotudefat.pdfIn PDF document text
- https://ristovski.mk/public_html/upload/userfiles/file/momedolozef.pdfIn PDF document text
- http://nurugelexport.com/ckfinder/userfiles/files/rufuvesuj.pdfIn PDF document text
- http://capitolmetrophysicaltherapy.com/files/files/lakawugakum.pdfIn PDF document text
- http://kunjipsc.com/uploads/files/mubupu.pdfIn PDF document text
- http://szyoujin.com/UploadFile/file/20210913150839430.pdfIn PDF document text
- http://eskuvotoszkanaban.hu/editor_up/6376253440.pdfIn PDF document text
- https://tlkingatlan.hu/kepek/other/file/gotoninekupejezukilej.pdfIn PDF document text
- http://rhondachem.com/d/files/6764929874.pdfIn PDF document text
- http://hanabi-la.com/uploads/files/fefavad.pdfIn PDF document text
- https://mabuksusu2.com/contents/files/35384056423.pdfIn PDF document text
- http://commandhousecreations.com/uploads/files/zuxoraribawuf.pdfIn PDF document text
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613bbdfd13510---96498915004.pdfIn PDF document text
- http://mondoacquapiscine.com/userfiles/files/23981553405.pdfIn PDF document text
- http://gopherandsquirrelcontrol.com/admin/images/file/71430239040.pdfIn PDF document text
- http://handinks.com/ckfinder/images_store/files/5376928204.pdfIn PDF document text
- http://dragonspond.com/uploads/files/6755033167.pdfIn PDF document text
- http://rehahomecare.com/upload/editor/files/kojitowamebe.pdfIn PDF document text
- http://aa-nusd.jp/34220511948.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_off0000dc35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC35 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f44c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44C | 10728 bytes |
SHA-256: d018012feff19b6570669e4d27f703db72b2071d0e94b79260a29b0b286d606d |
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font_02_sfnt_off00010cfb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CFB | 19004 bytes |
SHA-256: 940967cd578ad7746bd8b9abc41ab501f74e33fe2bfee5b5019c3944519ad06f |
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