MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous external links, with a high-confidence heuristic identifying it as a link farm hosted on disposable domains. One of the primary links, 'https://childrencareandliteracysociety.org/userfiles/files/20176294432.pdf', is flagged as a random URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. No scripts were extracted, but the structure suggests a lure document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 https://ketchas.ru/uplcv?utm_term=video+sticker+maker+apk PDF link annotation
- https://childrencareandliteracysociety.org/userfiles/files/20176294432.pdfIn PDF document text
- https://www.tocbirsen.org.tr/ckfinder/userfiles/files/gositavuzozinodopat.pdfIn PDF document text
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/161325f4f082b7---kokuminotumakanifowolu.pdfIn PDF document text
- http://saigondome.com/uploads/userfiles/file/77433633087.pdfIn PDF document text
- http://chandigarhdatarecovery.com/files/file/97256478553.pdfIn PDF document text
- http://087334211.kad.tw/kads/ckfinder/userfiles/files/sigisumewu.pdfIn PDF document text
- https://tatvan.in/userfiles/file/97164840527.pdfIn PDF document text
- https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/15cbdd9cab078c837f0db5fbf4e46d4c/20837053382.pdfIn PDF document text
- https://healthlantern.com/ckeditor/ckfinder/userfiles/files/getifurazuvufaxijur.pdfIn PDF document text
- http://newworldss.com/uploads/file/99394677839.pdfIn PDF document text
- http://galluccifaibano.it/userfiles/file/fonexapuni.pdfIn PDF document text
- https://szekszardportal.hu/userfiles/file/suwebufuragoredefupawi.pdfIn PDF document text
- http://fluitec.fr/ressource/site-image/files/jijunijajurawobujokure.pdfIn PDF document text
- http://lokalizacja-gps.pl/userfiles/file/49982889803.pdfIn PDF document text
- http://stagelight.pl/userfiles/files/nesurusuwesezejugiguwoxu.pdfIn PDF document text
- http://twgo8.com/uploads/base/files/202109121428578119.pdfIn PDF document text
- https://graveyards-fuj.ae/userfiles/files/gasaguramuzumemeneti.pdfIn PDF document text
- http://ariogalospspc.lt/userfiles/file/82879984977.pdfIn PDF document text
- http://studioaba.net/userfiles/files/67345495676.pdfIn PDF document text
- https://ksmt.edu.np/assets/ckfinder/userfiles/files/86067777106.pdfIn PDF document text
- http://iccarrentals.com/files/file/64742770024.pdfIn PDF document text
- http://asijskepotraviny.cz/files/file/welawagoselur.pdfIn PDF document text
- http://cluster006.ovh.net/~greeters/be/ckfinder/userfiles/files/rubapi.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_off0000b4c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4C7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ccd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCD9 | 19436 bytes |
SHA-256: 5533a30e54002d8a3e64f0a91a79243845a12c9b1f7ec900366a4c7773f42935 |
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font_02_sfnt_off0000fe87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE87 | 10584 bytes |
SHA-256: dafe360e42b411e9d920a43ded776f78e71144e16b1b05857bdbf2bbe0070b7c |
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