MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and a machine learning classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and numerous external URLs, including one pointing to a potential payload download, suggests the document is designed to exploit vulnerabilities or trick the user into downloading further malicious content. The heuristics also indicate the PDF acts as a link farm, further supporting a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 8
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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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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://inwebjor.ru/uplcv?utm_term=android+box+firmware PDF link annotation
- http://bayanairag.com/uploads/userfiles/files/zegozobatogatawonesufas.pdfIn PDF document text
- https://avflash.nl/upload/files/janutubureba.pdfIn PDF document text
- http://tidomusica.com/uploads/files/202109061545378961.pdfIn PDF document text
- http://abwva.com/uploads/files/tekaxejewigonemol.pdfIn PDF document text
- http://teewer.mn/ckfinder/userfiles/files/86214116272.pdfIn PDF document text
- https://strings97.hu/userfiles/file/61591334837.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/16139931ed4f9f---37796124484.pdfIn PDF document text
- http://bscartridge.com/pic/26522333238.pdfIn PDF document text
- https://mots.alaxarxa.cat/cmsimple/images/file/86528304110.pdfIn PDF document text
- https://artistprasanna.com/userfiles/file/85249080029.pdfIn PDF document text
- https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/vefikakowidovoxilesigu.pdfIn PDF document text
- https://enilubricant.hoakhanh.vn/uploads/image/files/12203812556.pdfIn PDF document text
- https://holocaustresearch.pl/nowy/photo/file/75369056884.pdfIn PDF document text
- https://invision.buzyhub.com/files/tojadalimiregazonefud.pdfIn PDF document text
- https://zenithservicos.com/userfiles/files/waxejoxelilabokoxeselamaw.pdfIn PDF document text
- http://wych123.com/upload/files/wemovopunibaju.pdfIn PDF document text
- https://www.bakkersvlaanderen.be/resources/plugins/ckfinder/userfiles/0/files/9310390354.pdfIn PDF document text
- http://tufaghanafc.com/js/ckfinder/userfiles/files/19267079082.pdfIn PDF document text
- http://suriyedostlukdernegi.org/image/files/72420554111.pdfIn PDF document text
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/e9b7a727ac2c95dad33972eb93814201/koziwuginoduwasesunekufa.pdfIn PDF document text
- http://resortcrimea.com/ckfinder/userfiles/files/98448779582.pdfIn PDF document text
- http://ibookingkr.com/FileData/ckfinder/files/20210905_9748C2AE266690CC.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_off0000f87b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF87B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011092.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11092 | 10512 bytes |
SHA-256: e72367dd54db6a3de947e11a0b4ef830faa60132294ffca64fcdf540ffc4d2f0 |
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font_02_sfnt_off00012886.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12886 | 17924 bytes |
SHA-256: 08ba30335659926bd5c282fba748bd39ac6500e3e813fbe312b7757f7b95ee1d |
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