MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on disposable domains and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The embedded JavaScript is a common technique for executing malicious code or redirecting users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://smidgel.ru/uplcv?utm_term=free+promo+codes+for+fortnite PDF link annotation
- https://kokomanis.com/contents/files/tubuled.pdfIn PDF document text
- http://kutyasturak.hu/images/files/92837106247.pdfIn PDF document text
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/i9qq2jh3eg8mbmt8rihfdhroch/rewogazizowinerovin.pdfIn PDF document text
- http://patrickstaxi.fr/userfiles/file/kizawokuxanajiri.pdfIn PDF document text
- http://vector-mebel.ru/uploads/files/pozapifokuxu.pdfIn PDF document text
- https://conexkarvan.com/cache/fck_files/file/44321851964.pdfIn PDF document text
- http://tabouligrill.com/ckfinder/userfiles/files/bebiliripemaravikudidilu.pdfIn PDF document text
- http://kxnjl.com/userfiles/files/8070880765.pdfIn PDF document text
- http://svx.su/ffile/file/34354525982.pdfIn PDF document text
- https://lederstuhlshop.de/ckfinder/userfiles/files/91197033435.pdfIn PDF document text
- http://rogersdesignhouse.com/uploads/files/fuzebizatamizutinizipis.pdfIn PDF document text
- http://lnaixi.com/userfiles/file/20210912230524_129678172.pdfIn PDF document text
- http://sochi-vitrazhi.ru/ckfinder/userfiles/files/movuxasajuvololisuwizirab.pdfIn PDF document text
- http://matsusushionline.com/uploads/files/26376386599.pdfIn PDF document text
- http://esteel.my/userfiles/file/kitevixuxig.pdfIn PDF document text
- http://firsttimehomebuyerstudy.com/images/file/9300317964.pdfIn PDF document text
- http://police8coop.com/UserFiles/file/44233039371.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1613add3fb1001---xaletef.pdfIn PDF document text
- https://store-connector.com/_upload_bilder/_filemanager/file/folobabaseb.pdfIn PDF document text
- http://tonwen.org/userfiles/file/16545429778.pdfIn PDF document text
- http://aviapartner.biz/js/ckfinder/userfiles/files/kuxow.pdfIn PDF document text
- http://erimti.com/userfiles/file/woseripufokewenasumo.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_off0000ddb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDB2 | 10548 bytes |
SHA-256: 8dc0e29f95552ed7d0dfe9138118c294953fce8c13ff1767ce55f7ec3ed5f4ac |
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font_01_sfnt_off0000f5b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5B0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010dc2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DC2 | 18488 bytes |
SHA-256: e4a326294470e0b2d183e277c482c801c10da9cf3ebb6df0928992dc00c2802b |
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