MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous links to external PDF files hosted on various domains, with several heuristics identifying it as a link farm on disposable hosting. One specific link points to 'https://internationallanguagenavigators.com/media/24318516851.pdf', which is likely part of a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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://vattucongtrinh.com/userfiles/file/piwamo.pdf In PDF document text
- http://www.radanhorse.com/resource/files/58938270138.pdfIn PDF document text
- https://internationallanguagenavigators.com/media/24318516851.pdfIn PDF document text
- http://stacjaregeneracja.pl/userfiles/file/jemiforafemizopufu.pdfIn PDF document text
- http://longvu.vn/Images_upload/files/47935098277.pdfIn PDF document text
- http://tucholainfo.pl/userfiles/file/99291697109.pdfIn PDF document text
- http://news-hk.net/uploadfile/file///vupajijaf.pdfIn PDF document text
- http://mawaevents.com/uploads/file/fakowudabanisedubura.pdfIn PDF document text
- http://sevimticaret.net/userfiles/file/28410731338.pdfIn PDF document text
- http://galettedesrois.eu/userfiles/file/rijapinopoko.pdfIn PDF document text
- https://pragatitic.org/ckfinder/userfiles/files/9007604731.pdfIn PDF document text
- http://rambud.pl/uploaded/file/98565417567.pdfIn PDF document text
- http://ssteelelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/45897674830.pdfIn PDF document text
- https://freshchannels.com/home/sites/freshchannels/public_html/ckfinder/userfiles/files/rurebikuxovivoru.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16147a4a7597bc---judopuxusipujejebatow.pdfIn PDF document text
- http://yas-center.ru/userfiles/file/34402383665.pdfIn PDF document text
- https://transport.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/9305222333.pdfIn PDF document text
- http://everintelconsulting.com/upload/file/202109141738525492.pdfIn PDF document text
- http://sicilalluminio.it/userfiles/files/wamez.pdfIn PDF document text
- https://net-mex.hu/ckfinder/userfiles/files/piwekap.pdfIn PDF document text
- http://stroyvodservice.ru/upload/File/rozimegolokakuleredipuru.pdfIn PDF document text
- http://dalnoboy.net/data/filestorage/upload/files/20160334199.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=android+auto+aplikacijaPDF 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_off0000d8df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8DF | 10512 bytes |
SHA-256: dfa311793e899a75c0ec43e7826bb5e3daede5e14f77ba1542bc4d6666dc1e86 |
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font_01_sfnt_off0000f0da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0DA | 18880 bytes |
SHA-256: 705f566d6dc60c61fcb11d305459096023294fb06bb8bf011ff958c5214f0766 |
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font_02_sfnt_off0001217c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1217C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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