MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains numerous links to external PDF files hosted on various domains, with several heuristics indicating it functions as a link farm on disposable hosting. The presence of a 'download button' lure further suggests a malicious workflow aimed at tricking users into downloading further content, likely malware or phishing pages.
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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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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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 http://tischlerei-schlusche.de/sites/default/files/file/lolotakevomopikizuj.pdf In PDF document text
- http://ottomaniantextile.com/userfiles/file/telasonarenololeratatinat.pdfIn PDF document text
- http://gniortho.com/files/Upload/file/343095360.pdfIn PDF document text
- http://nbkhjc.com/uploads/202109/file/210904090044918592artvnoy2n1g1.pdfIn PDF document text
- http://ghettaetamionarchitetti.it/userfiles/files/ziligefokogunepibuxokus.pdfIn PDF document text
- https://hondamienbac.vn/userfiles/file/dosuvakubupozebo.pdfIn PDF document text
- http://frutapacargentina.com/ckfinder/userfiles/files/67316971598.pdfIn PDF document text
- https://bandotrading.com/uploads/file/14016584212.pdfIn PDF document text
- http://nifaelectronics.com/userfiles/file/66456640329.pdfIn PDF document text
- https://tutorlookup.com/ckeditor/ckfinder/userfiles/files/22453138828.pdfIn PDF document text
- http://talleresjpg.es/img/file/tawosezozadobulu.pdfIn PDF document text
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/d2fc1983ab073bd54e14089a082c19ab/24943267326.pdfIn PDF document text
- https://hgqq.hk/tony/churchofgod/ckfinder/userfiles/files/55036216881.pdfIn PDF document text
- http://geofer.eu/userfiles/files/79465870201.pdfIn PDF document text
- https://organicfertilizerproduction.com/d/files/96255603661.pdfIn PDF document text
- https://chongtham68.com/app/webroot/uploads/files/zaditanovotedaxuvorusuxuf.pdfIn PDF document text
- http://pantanalmsnews.com.br/ckfinder/userfiles/files/7184806525.pdfIn PDF document text
- https://ambulatorioveterinariosismondi.eu/file/buzotobufu.pdfIn PDF document text
- http://laiyi-art.com/userfiles/file/mixibobu.pdfIn PDF document text
- http://plymouth-logs.co.uk/ckfinder/userfiles/files/27201122538.pdfIn PDF document text
- https://ratodua.com/contents/files/mimigepurixojexogafuxesuk.pdfIn PDF document text
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/522760df848edea52c5e28c4932409d0/kojemewurera.pdfIn PDF document text
- http://incomingmakedonia.com/files/files/66979954462.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=gta+san+andreas+apk+dPDF 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_off0000e690.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE690 | 18724 bytes |
SHA-256: 6803585cce86bd7ea8548f5113f02bc1350d2f98832c56a9cb18bff2cd3be370 |
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font_01_sfnt_off0001171f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1171F | 10260 bytes |
SHA-256: 6e0a1e73af3494fe6972c11adc91398e7cd8cabb71be10825351f2e73ed1f00b |
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font_02_sfnt_off00012e5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E5B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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