MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on disposable domains and appear to be part of a link farm. The heuristic 'PDF_RANDOM_URL_LINK' indicates a link to an algorithmically generated URL, suggesting malicious intent. The ClamAV detection and ML classifier further support the malicious nature of the file, likely serving as a lure for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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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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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 https://crewmak.ru/uplcv?utm_term=how+to+add+facebook+birthdays+to+android+calendar PDF link annotation
- https://canevastoilestjean.com/upload/editor/file/20811559473.pdfIn PDF document text
- https://davidfoleyinc.com/userfiles/file/zomopimik.pdfIn PDF document text
- http://ratchee.com/ckfinder/userfiles/files/lililepe.pdfIn PDF document text
- http://reopen911.info/media/file/67068414033.pdfIn PDF document text
- http://ggmtc.net/userfiles/files/mosuwopupuwugotupepuxutex.pdfIn PDF document text
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/161324c35a633b---68280165827.pdfIn PDF document text
- http://thestarbusan.com/FileData/ckfinder/files/20210910_F02D7D2C71E9CF49.pdfIn PDF document text
- http://china-baby-clothes.com/d/files/14312143245.pdfIn PDF document text
- http://www.diplomat2014.ru/ckfinder/userfiles/files/pulusawodirogek.pdfIn PDF document text
- http://myphamhelios.vn/luutru/files/87864909354.pdfIn PDF document text
- https://amrapalispot.com/userfiles/file/jisitafigerel.pdfIn PDF document text
- http://zvezda-rostov.ru/ckfinder/userfiles/files/38306641556.pdfIn PDF document text
- http://vagtteam.com/userfiles/Files/56840136219.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613aee045ed2d---88374500548.pdfIn PDF document text
- http://industrialsupplies.pk/userfiles/files/luwubujaw.pdfIn PDF document text
- http://herium.net/FileData/ckfinder/files/20210911_EF6083F0463763C3.pdfIn PDF document text
- http://mlight.cz/archiv/file/gefidapo.pdfIn PDF document text
- http://protezas.lt/i/File/10418647821.pdfIn PDF document text
- http://lctrading-gmbh.com/ckfinder/userfiles/files/12476783548.pdfIn PDF document text
- https://liepasmuiza.lv/userfiles/library/rosedetepomudopi.pdfIn PDF document text
- http://raegcafe.com/uploads/files/rubapuwodo.pdfIn PDF document text
- http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/mepolurakazilesisela.pdfIn PDF document text
- https://nhabe.com.vn/ckfinder/userfiles/files/18188614922.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_off0000e22c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE22C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fa3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA3E | 18552 bytes |
SHA-256: 6d34faa34d6a63a3deee02535abf8334351e6069f8a832d4c1e600285da31100 |
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font_02_sfnt_off00012a5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A5C | 10996 bytes |
SHA-256: e8c06dd11e6dbadd47fa6d5502ecdd49116680db76064f76a11406651a620083 |
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