MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ClamAV and an ML classifier, with heuristics indicating it is a callback phishing lure. The document body is heavily obfuscated and unreadable, but the presence of numerous embedded URLs and the 'SE_CALLBACK_LURE' heuristic strongly suggest a phishing attempt. No scripts were extracted, but the PDF structure itself likely facilitates the lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9958
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://liantoong.com/archive/upload/files/36715457699.pdf In PDF document text
- http://lamelove-zakryti.cz/userfiles/file/21335261605.pdfIn PDF document text
- https://rugsinc.in/UserFiles/files/1212096440.pdfIn PDF document text
- http://fogathajtohirek.hu/fckfiles/file/xewoxagipoze.pdfIn PDF document text
- http://qualityfirstservices.pro/testingsites/advantage_aviation/assets/media/file/bidusurikatixujasu.pdfIn PDF document text
- http://mxm-hosting.nl/img/editor/file/tazozijukubedudifamukul.pdfIn PDF document text
- http://netcentricnj.com/ckfinder/userfiles/files/866423795.pdfIn PDF document text
- http://indigobaby.eu/upload/files/jetuvagibaxogerodet.pdfIn PDF document text
- http://xn--80aer5aza.xn--c1acndkmcarx.xn--p1ai/ckfinder/userfiles/files/kezodukitireza.pdfIn PDF document text
- http://mylodge-naoshima.com/images/blog/file/movaxela.pdfIn PDF document text
- https://greenfins-thailand.org/uploads/file/parudakesedidunaneve.pdfIn PDF document text
- http://doorsatyrau.com/ckfinder/userfiles/files/94079736779.pdfIn PDF document text
- http://www.ondebiz.com/userfiles/file/zefili.pdfIn PDF document text
- https://groupburuemas1.com/contents/files/14530662716.pdfIn PDF document text
- http://ipllaser.in/uploads/52279292164.pdfIn PDF document text
- https://zooiguana.pl/app/webroot/media/files/sukerewov.pdfIn PDF document text
- https://aljazeerahpetroleum.ae/userfiles/files/30836785140.pdfIn PDF document text
- https://cpsguffanti.com/uploads/file/fogasadopibegawapuras.pdfIn PDF document text
- https://nezrenpin.com/calisma2/files/uploads/ronapusuzorewutof.pdfIn PDF document text
- http://slsnn.ru/content/file/fifodanixag.pdfIn PDF document text
- https://bhavanarayanaswamy.org/userfiles/file/6316119076.pdfIn PDF document text
- https://www.hermanosvalerorecio.com/ckfinder/userfiles/files/37462336539.pdfIn PDF document text
- http://ekotop.eu/userfiles/file/8381292600.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=fifa+mobile+offline+modPDF 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_off0000ce32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE32 | 18396 bytes |
SHA-256: d9bea5c29c8d60af5e760599b41e4cdfb9ab20ccbe9a59789e77972309c4a02e |
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font_01_sfnt_off0000fdc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDC0 | 10264 bytes |
SHA-256: 3262bc742e71c09779477eb60b18c5cd203341337f7e9f88bc7486536dd46b3b |
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font_02_sfnt_off000114b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114B6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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