MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious. It contains embedded JavaScript and numerous external URIs, suggesting it is designed to lead the user to malicious content or initiate further compromise. The 'SE_CALLBACK_LURE' heuristic specifically indicates a callback phishing or tech-support scam pattern, where the user is prompted to call a phone number under a pretext of an urgent issue.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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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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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://pistant.ru/uplcv?utm_term=contact+backup+apk+download PDF link annotation
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613933be796ef---xupogak.pdfIn PDF document text
- http://kxqcgs.net/filespath/files/20210908115404.pdfIn PDF document text
- http://yoron.net/up/files/33881265671.pdfIn PDF document text
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161337c06e0a5c---xoguluzobajufovanuke.pdfIn PDF document text
- https://colakcivi.com/userfiles/file/28557419818.pdfIn PDF document text
- http://jedzenie365.pl/ckfinder/userfiles/files/78382153370.pdfIn PDF document text
- http://donkaew-furniture.com/ckfinder/userfiles/files/nawenebizosewomelijirusip.pdfIn PDF document text
- http://almawred-sy.com/files/adminfiles/files/67524467463.pdfIn PDF document text
- http://phrabat.net/UserFiles/File/47574546164.pdfIn PDF document text
- https://mimpi1pusat.com/contents/files/velivol.pdfIn PDF document text
- http://jgweld18.com/UploadFile/file/20210902130814610.pdfIn PDF document text
- https://swapnauraan.com/ckfinder/userfiles/files/24579494130.pdfIn PDF document text
- https://www.wroclawmodelshow.pl/ckfinder/userfiles/files/futovinefuvawelinikinur.pdfIn PDF document text
- https://zemiigori.com/uploads/file/35667763921.pdfIn PDF document text
- https://watertorens.nl/userfiles/file/tezub.pdfIn PDF document text
- https://rintrans.com/files/vitetumamuzino.pdfIn PDF document text
- https://konteshamamotu.com/userfiles/file/pavunezedonarepuf.pdfIn PDF document text
- http://otoozevran.com/resimler/files/60957556506.pdfIn PDF document text
- http://skyrun-arser.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210905055543732738dfxkvf.pdfIn PDF document text
- http://lmnn.ru/userfiles/file/xevakugosewodonanozerep.pdfIn PDF document text
- https://gym-rectif.fr/ckfinder/userfiles/files/sasowepapadukovew.pdfIn PDF document text
- http://mediaworld.pro/ckfinder/userfiles/files/wiwizamugipugiposurapo.pdfIn PDF document text
- https://windscrm.net/files/file/75719357061.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_off0000dcc1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCC1 | 18168 bytes |
SHA-256: d17a5f2119ecd1c9e179e52fc920669995ebbe7f95e16d8fcad9c3c13788ee2f |
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font_01_sfnt_off00010c04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C04 | 10464 bytes |
SHA-256: d3fd32a069a78f76283c160421ec7e39977f418174dc574b562190a86a32959b |
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font_02_sfnt_off000123d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123D3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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