MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple heuristics indicating malicious intent, including a link farm on disposable hosting and a ML classifier flagging it as malicious. The presence of a 'download button' lure and a callback lure suggests a phishing or scam attempt. The ClamAV detection further confirms its malicious nature, identifying it as Pdf.Phishing.Trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://archism.ru/uplcv?utm_term=android+screen+recorder+built+in PDF link annotation
- http://pharmabiosolutions.com/filespath/files/20211002205820.pdfIn PDF document text
- https://alzubidi.com/userfiles/files/majuxegevavifiwakekusiziv.pdfIn PDF document text
- http://aire-limpio.com/img/editor/file/kinerixemutatoxovixagozar.pdfIn PDF document text
- https://reitinguok.lt/userfiles/file/64384399431.pdfIn PDF document text
- http://kaymccarthy.com/immagini/file/gixavifatewarolinepefa.pdfIn PDF document text
- http://senvietsystem.com/ckeditor/upload/files/dulotorodexu.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614af810f1d9e---bajesepikili.pdfIn PDF document text
- http://olguanaokulu.com/upload/file/82617913187.pdfIn PDF document text
- http://p-jtech.com/userData/board/file/86771938565.pdfIn PDF document text
- http://radyoislam.com/resimler/files/gakewavez.pdfIn PDF document text
- http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/48107820734.pdfIn PDF document text
- https://pasifikendustriyel.com/userfiles/file/85468601392.pdfIn PDF document text
- http://greatwalledmond.com/ckfinder/userfiles/files/gofejesepumud.pdfIn PDF document text
- https://daotao.cungthieunhidanang.vn/app/webroot/upload/files/dewimififij.pdfIn PDF document text
- http://rialta.ie/userfiles/files/zozozi.pdfIn PDF document text
- http://fitviewer.de/files/file/45236844783.pdfIn PDF document text
- http://prestinoequitacion.com/imagenes/upload/files/79928078876.pdfIn PDF document text
- http://ginzaramen.us/uploads/files/vitifozubudakaguwivate.pdfIn PDF document text
- http://sangjeom.com/userfiles/file///situnikoxifizojajepij.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/92899109143.pdfIn PDF document text
- https://www.cylinder96.ru/admin/ckfinder/userfiles/files/60942483263.pdfIn PDF document text
- http://harlit.com/upfiles/file/60437201088In PDF document text
- http://www.thaiticketmajor.com/static/imgUpload/files/66809295618.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_off0000de73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE73 | 10420 bytes |
SHA-256: b4ebb93e083e7fb43eb6a83ec3c6ff5f94666cc1bd22b746bad547e163084dcc |
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font_01_sfnt_off0000f635.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF635 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010e47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E47 | 19612 bytes |
SHA-256: 99c1484ba729145dd212cbe9985f8a0b9b7d4905448f2ebc7f0f6fbff2bcbe26 |
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