MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF that contains a high number of embedded URLs pointing to other PDFs, many of which are hosted on disposable domains. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to download an archive and provides a password, a common tactic to evade gateway security. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9888
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://chongtham68.com/app/webroot/uploads/files/rikate.pdf In PDF document text
- https://turkeyinsurance.info/images/file/93837323504.pdfIn PDF document text
- http://appinaris.net/ckfinder/userfiles/publics/files/39417566417.pdfIn PDF document text
- https://betalinktech.com/blmedia/file/58204289210.pdfIn PDF document text
- http://rw-hse-businessconsulting.de/userfiles/file/juxug.pdfIn PDF document text
- https://www.displaysdirectaustralia.com.au/application/third_party/ckfinder/userfiles/files/kazubow.pdfIn PDF document text
- http://eyela.kr/uploadfile/fckeditor/file/bodifegikapodokedudi.pdfIn PDF document text
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bf862e0fb0---31200908290.pdfIn PDF document text
- http://hodinovysoused.cz/upload/file/mapiberosamejesekudufom.pdfIn PDF document text
- https://linker.tw/files/62232050904.pdfIn PDF document text
- https://windscrm.net/files/file/fejepenubejumo.pdfIn PDF document text
- http://ckudzcssffhhj.handysociality.com/upload/files/semilugivokegedipofexizet.pdfIn PDF document text
- http://industrialdevices.in/uploads/retimezawilap.pdfIn PDF document text
- https://autohausnschmidt.de/userfiles/file/24675982055.pdfIn PDF document text
- http://mlight.cz/archiv/file/ditovofapu.pdfIn PDF document text
- http://linpus.com/app/webroot/userfiles/files/zigogosafasudapiteg.pdfIn PDF document text
- http://ivelinabozilova.com/userfiles/file/wedutalibunifasevovokel.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/161315173934df---84138505581.pdfIn PDF document text
- https://bda.ch/ckfinder/userfiles/files/xesolafuz.pdfIn PDF document text
- http://am-assets.com/aom/magnolia/userfiles/file/21251597813.pdfIn PDF document text
- https://businesslife.com/content/files/zubulilokafesoxelomen.pdfIn PDF document text
- http://bjerkelunden.org/content/files/userfiles/file///zagetuzugupa.pdfIn PDF document text
- http://panteres.com/files/files/mewiramobufibowanizusag.pdfIn PDF document text
- http://le-nora.com/userfiles/file/komesexob.pdfIn PDF document text
- http://xn--80aafjbaeihgganggf9ajkncugh2a.xn--p1ai/pict/file/29277075110.pdfIn PDF document text
- http://kimdaiphatsteel.com/Images_upload/files/noperakotugizewowadox.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+get+free+uc+in+pubg+korean+versionPDF 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_off00011241.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11241 | 11084 bytes |
SHA-256: 4d9aca0225762bef9fc1578559bab8b93a6384b2466ccfd277eb64ccbc618145 |
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font_01_sfnt_off00012c12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C12 | 17840 bytes |
SHA-256: 5ee57d4e1ea39eee5e325e83cd05caeb5d2b03acc5ac1dfb6e06617d66f5a4e9 |
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font_02_sfnt_off00015a51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15A51 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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