MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ML classifiers and ClamAV, with multiple heuristics indicating it's a link farm. It contains numerous embedded URLs pointing to PDF files hosted on various domains, including one using a raw IP address, suggesting a phishing or malware distribution scheme. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically flags it as a link farm on disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://ijaetis.org/ckfinder/userfiles/files/wopubosajo.pdf In PDF document text
- https://rajaketiga.com/contents/files/togeguzinemaxigifonijoduz.pdfIn PDF document text
- http://kbfrutos.sk/images/_file/zezifufewawufidila.pdfIn PDF document text
- http://bangkokmagnetwire.com/ecodev_test/image_system/files/zunefugebulijujad.pdfIn PDF document text
- http://211.129.1.225/system/ckfinder/userfiles/files/54202783696.pdfPDF link annotation
- http://kool-house.com/upload/editor/file/90576803760.pdfIn PDF document text
- https://somogyplusz.hu/files/raxadovenemesujowowovunex.pdfIn PDF document text
- http://dinskayarealty.ru/media/file/61390905593.pdfIn PDF document text
- https://granitnet.hu/editor_up/63709069470.pdfIn PDF document text
- http://xn--939a66v0zjo3bcvdmrp.com/data/ckfinder/files/befos.pdfIn PDF document text
- https://csmgh.net/pevron/www/img/file/zupajezobizamejol.pdfIn PDF document text
- https://istanbularicilikfestivali.com/upload/ckfinder/files/9783557525.pdfIn PDF document text
- http://thcsducthang.pgdbactuliem.edu.vn/ckfinder/userfiles/files/tomunuguwodaxugi.pdfIn PDF document text
- http://thibidi.vinadesign.info/uploads/images/files/zixatagijopewusinaresasa.pdfIn PDF document text
- https://leo.tw/upload/ckeditor/files/1347568158.pdfIn PDF document text
- http://yesfabric.com/images/upload/File/98010152857.pdfIn PDF document text
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/bb5f270741b4d8c1e5bcf1414b208819/lorobejud.pdfIn PDF document text
- https://www.ojchamber.com/ckfinder/userfiles/files/revivakexezawumisowimot.pdfIn PDF document text
- https://postelezmasivu-liberec.cz/ckfinder/userfiles/files/kibigekavex.pdfIn PDF document text
- http://elitvorota.ru/f/file/kovesetu.pdfIn PDF document text
- http://cserepakcio.hu/xdata/file/91202576883.pdfIn PDF document text
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ef9ca3c57c---gezukekado.pdfIn PDF document text
- https://strongpointmarketing.net/userfiles/file/58207372302.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=silent+ops+android+apkPDF 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_off0000c010.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC010 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d827.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD827 | 10552 bytes |
SHA-256: 21a334c44e04bd21bbcc96ddba48f3fc982ca1d19951848d8eb9b23de7b905c2 |
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font_02_sfnt_off0000f03a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF03A | 18012 bytes |
SHA-256: d1601016e2b24dc89dffb5a1e63e4c7a551919432e65c2e15091486b281f3533 |
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