MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous external URIs, many pointing to disposable domains, suggesting a link farm or redirection mechanism. One heuristic specifically identifies it as a 'link farm on disposable hosting' with a 'utm_term_redirector=True' parameter, indicating a phishing or malware distribution lure. The malformed stream length heuristic also suggests an attempt to hide malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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://doellefjelde-mussemarked.dk/images/newsmail/file/xumonimibunorubewaji.pdf In PDF document text
- https://alihuata.com/userfiles/file/rowedovuf.pdfIn PDF document text
- http://lingeriedediva.com/UploadFile/file/2021090904101173499.pdfIn PDF document text
- http://studiotecnicodama.it/userfiles/files/65877702119.pdfIn PDF document text
- http://gzafjc.com/uploadfile/files/15888410254.pdfIn PDF document text
- http://crmrealty360degree.in/ci/userfiles/files/14649333542.pdfIn PDF document text
- http://starma.pl/files/file/74418384757.pdfIn PDF document text
- http://rbtyutj01.com/userfiles/files/30123560235.pdfIn PDF document text
- http://sm.ac.th/ckfinder/userfiles/files/76960033194.pdfIn PDF document text
- http://xn--80aafjbawrcdgsodbdciig4a5v.xn--p1ai/pict/file/sojowuvularorumufade.pdfIn PDF document text
- http://hyunsin.net/userfiles/file/26803537990.pdfIn PDF document text
- http://tincorner.vn/uploads/files/sitapusaroposojajugunoxaw.pdfIn PDF document text
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16138c2408cb35---23954231971.pdfIn PDF document text
- http://primebrokeragetx.com/ckfinder/userfiles/files/xinizawomovuxinoni.pdfIn PDF document text
- https://ofcourselc.com/admin/uploadsfile/8967545823.pdfIn PDF document text
- https://optimuselearningschool.aels.edu/learning/site/images/uploadfiles/jupopedofubav.pdfIn PDF document text
- http://redemaisfarma.com/userfiles/file/fimet.pdfIn PDF document text
- https://btegypt.com/file/35817725619.pdfIn PDF document text
- http://henghuitong.com/jingkelun/userfiles/files/20210913011107.pdfIn PDF document text
- http://lg-palette.com/upload/files/452290075.pdfIn PDF document text
- https://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/61078086540.pdfIn PDF document text
- http://henzefashion.com/userfiles/file/mivibijukokenekunirodev.pdfIn PDF document text
- http://studiosiciliani.eu/userfiles/files/10061152877.pdfIn PDF document text
- http://rund-sro.cz/UserFiles/File/pejesokinepuzikavowibe.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=watch+space+jam+2+full+movie+free+onlinePDF 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_off0000f9b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9B6 | 11152 bytes |
SHA-256: 365a02a6a03a68fe60f82fb327ed1b9ddfd4967958f0816c8836d5487ae935f6 |
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font_01_sfnt_off000113ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113AE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012bc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BC0 | 17788 bytes |
SHA-256: b8d1daf7879c57e521628f0b2937082a89d335128269b4f410f95c4c123faf31 |
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