MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, with heuristics indicating embedded JavaScript and a link farm. The embedded JavaScript likely redirects the user to one of the numerous external URLs, which are part of a link farm hosted on disposable domains, suggesting a phishing or malware distribution scheme. The presence of embedded JavaScript points to T1059.007, and the nature of the file suggests it was likely delivered as a spearphishing attachment (T1566.001).
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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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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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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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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://cke.hk/userfiles/tawabapavuwesa.pdf In PDF document text
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140bb85a6e81---1368503225.pdfIn PDF document text
- http://zoltysnieg.pl/pliki_wyswig/files/27870487875.pdfIn PDF document text
- http://carneiro-sa.pnh.pt/js/ckfinder/userfiles/files/pakoxirixuzom.pdfIn PDF document text
- http://roomyab.ir/basefile/roomyabir/files/76061139911.pdfIn PDF document text
- https://automatisme-portail-bordazzi.fr/userfiles/fichiers/77001220452.pdfIn PDF document text
- http://sportingclubalbinia.eu/userfiles/files/suxijofirerisom.pdfIn PDF document text
- https://elitstroycraft.ru/source/file/22342379965.pdfIn PDF document text
- http://arcenevents.nl/site/upload/files/67530118682.pdfIn PDF document text
- http://lab4050.com/upload/editor/file/safifutoliwazogikexibal.pdfIn PDF document text
- http://konditsionery-zheleznodorozhnyi.ru/upload_picture/file/37861715863.pdfIn PDF document text
- https://butagallery.com/userfiles/files/jarujolitojix.pdfIn PDF document text
- https://www.fangjin.org/ckfinder/userfiles/files/lapajoj.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a28be4b600---pelezowufajiteboge.pdfIn PDF document text
- https://ncsccalgary.com/userfiles/files/lugiwi.pdfIn PDF document text
- https://datajournonepal.org/files/xulonuxoxodenugatebaf.pdfIn PDF document text
- https://cometsecurity.in/admin/userfiles/file/25219974538.pdfIn PDF document text
- http://grubstreet.ca/ckfinder/userfiles/files/3219339907.pdfIn PDF document text
- http://myxroad.net/upload/userfiles/file///temijulomugiwexu.pdfIn PDF document text
- http://olsztyntransportmedyczny.pl/userfiles/file/zaduwukilonu.pdfIn PDF document text
- http://vladekoservis.ru/files/49600628445.pdfIn PDF document text
- http://www.santamyoga.be/images/file/kuwavikakerakudupipozun.pdfIn PDF document text
- http://studioprogettoarchitettura.eu/userfiles/files/90081952811.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=shortest+muscle+in+human+bodyPDF 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_off0000b12c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB12C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c943.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC943 | 11064 bytes |
SHA-256: b78f47804613e6de578f70641fd2a61dd3ae3a4ee8028670bf521284e40c86d7 |
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font_02_sfnt_off0000e2da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2DA | 14572 bytes |
SHA-256: df29d14ae064187a8dcbc049aab9bd986bb8485e731c12cc5b712989aa4de5e4 |
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