MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by multiple heuristics, including ML classification and ClamAV, indicating malicious content. The presence of numerous external URIs and the 'SE_CALLBACK_LURE' heuristic strongly suggest a phishing attempt designed to trick the user into initiating a phone call. While no scripts were explicitly extracted, the PDF structure and embedded links point towards a social engineering attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://synerhu.ru/uplcv?utm_term=get+own+phone+number+android PDF link annotation
- https://magatek.com/documents/file/6646346359.pdfIn PDF document text
- https://www.highettmetal.com.au/application/third_party/ckfinder/userfiles/files/18234153046.pdfIn PDF document text
- http://klubalfa.org/img/userfiles/file/96391137607.pdfIn PDF document text
- http://issaproject.com/app/views/panel/ckfinder/userfiles/files/tuxezimuxusejazeroneg.pdfIn PDF document text
- http://riverhouse.at/pcms/content/file/90790201751.pdfIn PDF document text
- http://autoklej.pl/app/webroot/media/files/62190086719.pdfIn PDF document text
- http://daiduongmetal.com/uploads/ckfinder/files/puvokokiditosozidez.pdfIn PDF document text
- https://cncostruzioni.com/userfiles/file/25560658836.pdfIn PDF document text
- http://adidravidar.com/ckfinder/userfiles/files/45295855281.pdfIn PDF document text
- http://childconnect.com/swi/fckfiles/file/73734575996.pdfIn PDF document text
- http://old.smartplus.pl/ckfinder/userfiles/files/lazigodivikimajuxoxi.pdfIn PDF document text
- http://top1np.com/ckfinder/userfiles/files/jabog.pdfIn PDF document text
- https://ibextrail.com/editor-images/fofibaxitofenate.pdfIn PDF document text
- http://transbur.ru/admin/ckfinder/userfiles/files/jadixakamamifetux.pdfIn PDF document text
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/4325b80c0e51873338b1299a69a0810e/vonawelikigafolofi.pdfIn PDF document text
- http://dijladentalcenter-qa.com/userfiles/file/soparevigapazamur.pdfIn PDF document text
- https://mimpiindah88.com/contents/files/15957193988.pdfIn PDF document text
- https://ikincielinmak.com/upload/ckfinder/files/27825974895.pdfIn PDF document text
- http://artpolyclinic.com/file/files/48594996085.pdfIn PDF document text
- http://h-st.nl/bestanden/files/54877445329.pdfIn PDF document text
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/fa9dcd55cb7cf0799de60fb61f830e07/50227683647.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_off0000dfed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFED | 10808 bytes |
SHA-256: 2d46ef8b372d6e498efc9cca73904049ff7028b59086fe63b1d1df7051e103b0 |
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font_01_sfnt_off0000f86e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF86E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011080.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11080 | 19104 bytes |
SHA-256: 15a346564422527b39324cf5a6d8e1ecce54c977a0a0ec7e94481519c8c5b74b |
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