MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. The presence of numerous external URIs, many of which are part of a link farm, suggests an attempt to direct users to potentially malicious websites. The 'SE_CALLBACK_LURE' heuristic further indicates a phishing or scam pretext, likely aiming to trick users into visiting the embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://krisoc.ru/uplcv?utm_term=gta+5+cheats+pc+god+mode PDF link annotation
- http://pnlestari.com/visitbali/image/files/35732910001.pdfIn PDF document text
- http://capitaloffice.pl/fotki/file/pakawigelebomukov.pdfIn PDF document text
- http://slovbau.sk/test/userfiles/file/72860522477.pdfIn PDF document text
- http://gyn-ordi.at/myPix/file/wadewelajonewurobid.pdfIn PDF document text
- https://saikekanglun.com/filespath/files/20210911085232.pdfIn PDF document text
- https://futuresbuilder.net/dayafter/uploadimages/newsimages/file/musibokavufemubugidugasu.pdfIn PDF document text
- http://werkschoenenverkoop.nl/images/docman/files/16089219935.pdfIn PDF document text
- http://epmachine.ru/d/files/vituforubiwuti.pdfIn PDF document text
- https://novinfasteners.com/userfiles/file/78431326916.pdfIn PDF document text
- http://aquaclub.hu/userfiles/file/73459909906.pdfIn PDF document text
- http://cellfruits.com/ckfinder/userfiles/files/rugojisuwuzizazu.pdfIn PDF document text
- http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/36cf482d7c4d36fc35c356d34bc628ca/pufogufosamaji.pdfIn PDF document text
- http://yacpa.org/yacpafiles/file/92679970786.pdfIn PDF document text
- https://atavio.ru/files/file/47692799346.pdfIn PDF document text
- http://usarsenal.it/userfiles/files/55374011955.pdfIn PDF document text
- http://assotechne.eu/userfiles/files/57813785130.pdfIn PDF document text
- http://studiosaletta.it/userfiles/files/2344934217.pdfIn PDF document text
- http://conniecorsentino.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nusesuwaxinok.pdfIn PDF document text
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16137644b5caad---40983423651.pdfIn PDF document text
- https://belitour.ir/basefile/belitourir/files/ruvafokedakoregaluwiteno.pdfIn PDF document text
- http://joinsocialbubble.com/cake/beta/userfiles/file/monifebej.pdfIn PDF document text
- http://mustang.tom.ru/jsplugins/ckfinder/userfiles/files/xazefedejeg.pdfIn PDF document text
- http://s292376414.onlinehome.fr/datas/imgmail/file/zivogelolonaxemaraxiwab.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_off0000d59e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD59E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000edb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDB0 | 18336 bytes |
SHA-256: b80b23f5e8910dcec61b5220750fc84a05d112d08188e8a4679008c748a3baeb |
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font_02_sfnt_off00011d6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D6F | 10792 bytes |
SHA-256: a3200431e67b6d61f57f1fd30454d5d680421d0285e4196b76ffc99aa5764b82 |
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