MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm and contains a callback phishing lure, prompting users to call a number in a deceptive context. While no scripts were directly extracted, the presence of embedded URLs and the nature of the heuristics suggest a phishing attempt designed to trick users into engaging with malicious actors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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 http://fobas.cz/userfiles/file/33758275941.pdf In PDF document text
- http://somkuthyoptika.hu/editor_up/18761241861.pdfIn PDF document text
- http://land89.com/ckupload/files/48058116674.pdfIn PDF document text
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fb1015b52a---59436578976.pdfIn PDF document text
- https://www.nhabe.com.vn/ckfinder/userfiles/files/60224906043.pdfIn PDF document text
- http://luxcottage.ru/stroykamen/userfiles/file/39531733351.pdfIn PDF document text
- http://www.espace-hotelier.com/ckfinder/userfiles/files/99095574900.pdfIn PDF document text
- https://tannhatviet.vn/upload/files/mexafupopupawilawixaze.pdfIn PDF document text
- http://www.rify.us/cms-uploads/files/5465870740.pdfIn PDF document text
- https://carlojans.com/cms/file/futibivozejedazezijosidi.pdfIn PDF document text
- http://anneadamslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jotelajifuvorojo.pdfIn PDF document text
- http://ed-union05.ru/files/file/17016323615.pdfIn PDF document text
- http://tysons-cafe.com/uploads/files/zejover.pdfIn PDF document text
- http://zussobrance.sk/grafika/dokumenty/kafekekituxegen.pdfIn PDF document text
- http://sanga.asia/userData/board/file/jimuvurejodoxo.pdfIn PDF document text
- http://erimti.com/userfiles/file/zemubutodusotofupos.pdfIn PDF document text
- http://087334211.kad.tw/kads/ckfinder/userfiles/files/3785060692.pdfIn PDF document text
- http://rococosofa.com/files/files/86487834839.pdfIn PDF document text
- https://vasutaszeneiskola.hu/ckfinder/userfiles/files/binewadumiroxevute.pdfIn PDF document text
- http://helloslow.com/data/userfiles/files/vasemakilewonag.pdfIn PDF document text
- http://koreaticketland.com/userfile/file/wokozemurejisepeketarada.pdfIn PDF document text
- https://remoteyourstaff.com/calisma2/files/uploads/97733069207.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=my+hero+academia+heroes+rising+movie+watchPDF 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_off0000c9af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9AF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e1c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1C6 | 11028 bytes |
SHA-256: 90b68b7bb7931ca51bbbd17e30372577d14ce9f96a99b86b1e8a0c19c6e28560 |
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font_02_sfnt_off0000fb25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB25 | 19408 bytes |
SHA-256: 3cfe96fdab9fe43150d9e29b7bfef631ad287e2faef71912d871a8681c8aebc7 |
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