MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by a machine learning classifier and ClamAV as malicious, with heuristics indicating it functions as a link farm and a callback phishing lure. Although no executable scripts were extracted, the document's structure and embedded URLs suggest it is designed to direct users to malicious sites or engage them in a social engineering scheme. The presence of numerous unknown reputation URLs further supports its malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://turismo-galicia.es/ckfinder/userfiles/files/81376158547.pdf In PDF document text
- https://wcfkenzi.com/ckfinder/userfiles/files/zefev.pdfIn PDF document text
- http://sarljarry.fr/userfiles/file/63695040282.pdfIn PDF document text
- http://geojeoceanhotel.com/userfiles/file/20210910232316.pdfIn PDF document text
- https://forumhrdbekasi.com/webroot/userfiles/files/38282527069.pdfIn PDF document text
- http://collegium-connect.nl/ckupload/files/nodoferewugibune.pdfIn PDF document text
- http://innersolutions-uk.com/file/zufozo.pdfIn PDF document text
- http://usefchina.com/uploadfile/file///2021090422172645.pdfIn PDF document text
- http://imobilestore.de/userfiles/file/burepufemamonitu.pdfIn PDF document text
- http://xn--vb0b83rba554gca.kr/page_data/file/20210910170930.pdfIn PDF document text
- http://fuguchair.com/upfolder/e/files/20210910224341.pdfIn PDF document text
- http://2222.netsociality.com/upload/files/56526936095.pdfIn PDF document text
- http://whatcanidoforyou.eu/publish/file/bajesexaxisajexifi.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/10130512734.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/8e74edcf0ef03423312a17f4608722fe/rataweb.pdfIn PDF document text
- http://suriyedostlukdernegi.org/image/files/44621381340.pdfIn PDF document text
- https://speedwayinfo.hu/uploads/file/rexokikuretifete.pdfIn PDF document text
- http://ecosdaliberdade.com/ckfinder/userfiles/files/xidoretiwokijikeribupadet.pdfIn PDF document text
- https://motelandratecuci.ro/userfiles/file/pezapiniro.pdfIn PDF document text
- http://opsir.eu/files/file/28380548742.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16137cc2a6a786---nupusigujuvevowativo.pdfIn PDF document text
- http://rana-international.com/userfiles/files/xejetavokozetuv.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=will+a+factory+reset+delete+my+contactsPDF 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_off0000c8bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8BC | 10744 bytes |
SHA-256: 6899227fba1bdbd72b8f5379af8c5bd309000bb2b3d2e8067fd7124714be0077 |
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font_01_sfnt_off0000e179.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE179 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f98b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF98B | 16692 bytes |
SHA-256: 6d9e413fdc29d7dbc1f04ab03c06805225e72112688f660065e8a523de9c711d |
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