MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous embedded URLs, many of which point to PDF files on potentially disposable or unknown domains, suggesting a link farm or redirection mechanism. The PDF structure itself appears to be a link farm, with 24 distinct hosts and a high number of links per host, further supporting the idea of directing users to external, potentially malicious, content. No scripts were extracted, but the PDF's nature as a link farm and the high confidence malicious verdict strongly suggest it's used for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 5
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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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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://ceccarmehedinti.ro/userfiles/file/tabika.pdf In PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/161340f2e9ef2b---mimiwivij.pdfIn PDF document text
- http://szcftz.com/upload/10600216993.pdfIn PDF document text
- https://www.singaporemedicalclinic.com/ckfinder/userfiles/files/58627687737.pdfIn PDF document text
- http://sjhrz.com/images/upload/File/3508338185.pdfIn PDF document text
- https://chuyennhakienvangvn.net/upload/files/27454532805.pdfIn PDF document text
- https://bdata.vn/upload/files/tinudazejefivakakefav.pdfIn PDF document text
- https://4of100churchstreet.com/assets/media/files/59956000080.pdfIn PDF document text
- http://techcessgroups.com/userfiles/file/45884921583.pdfIn PDF document text
- http://hepiran.com/cache/fck_files/file/45475477084.pdfIn PDF document text
- https://ppkh.net/userfiles/file/17556451516.pdfIn PDF document text
- http://innobiztour.com/FileData/ckfinder/files/20210919_FDF748E5C0D345D9.pdfIn PDF document text
- http://micronforgacsolo.hu/UserFiles/file/49987018802.pdfIn PDF document text
- http://villkasz.hu/editor_up/baziwitepaminokumevo.pdfIn PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc350ee5c5---pakawowapilavodixaxux.pdfIn PDF document text
- https://atamergranit.com/userfiles/file/tonavozomexapofirikikiw.pdfIn PDF document text
- http://emilybarnes.com/DEVELOPMENT/VERSIONED/emilybarnes/trunk/sites/default/files/file/2909463325.pdfIn PDF document text
- http://phukhoabacninh.com/images/files/85102452971.pdfIn PDF document text
- http://www.sudeshnamaulik.com/fckimages/file/votataxiruni.pdfIn PDF document text
- https://mcq-exambd.bdbabymart.com/app/webroot/ckfinder/userfiles/files/5904394720.pdfIn PDF document text
- https://bostaninsaat.com/image/files/luwur.pdfIn PDF document text
- http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/wikajabepimij.pdfIn PDF document text
- http://mimarkamilozkartal.com/userfiles/files/budasuriniwinekime.pdfIn PDF document text
- http://webbyshoe.com/fckeditor/userfiles/file/5884859416.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=toefl+ibt+speaking+and+writing+practice+test+volume+25PDF 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_off0000d794.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD794 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000efab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFAB | 11664 bytes |
SHA-256: 97aef637adcdbe52ff3a0327448bc4fcaf3cabacf4cc50b14988a5e86a322a14 |
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font_02_sfnt_off00010b2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B2D | 17688 bytes |
SHA-256: b78605aa80e45b004d89d916eb8d60c19100e6ad14219eee97af5e8aab55209d |
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