MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm with numerous external URIs, suggesting a phishing or malware distribution lure. The presence of 'wkhtmltopdf' in the metadata and the nature of the extracted URLs point towards a campaign designed to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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 http://jacsonsfurniture.com/userfiles/file/6647842379.pdf In PDF document text
- http://farmaciacogliate.it/userfiles/files/lunulapivef.pdfIn PDF document text
- https://svilia.restavracia02.com/userfiles/file/wujilem.pdfIn PDF document text
- http://519pf.com/userfiles/files/21956187035.pdfIn PDF document text
- http://op-gold.com/ck_image/files/25440049289.pdfIn PDF document text
- http://brunagabriele.it/userfiles/files/67370280160.pdfIn PDF document text
- http://tetrafluoro.com/upload/files/fepiwapetunosin.pdfIn PDF document text
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/f78186d5b3df48606334b71471fa2ce8/zamat.pdfIn PDF document text
- https://samoinstitute.mn/uploads/assets/file/24128341796.pdfIn PDF document text
- http://eurekaelearning.com/upload/news/file/93078645398.pdfIn PDF document text
- http://molenat-energies.fr/molenat.com/images/editor/file/dikefozirimuxelirekezeteb.pdfIn PDF document text
- http://wieswioska.pl/userfiles/file/57807094364.pdfIn PDF document text
- https://aqualibramontois.be/fckdownload/file/buduterudujalowutadiwuzo.pdfIn PDF document text
- http://mazurubezpieczenia.pl/zdjecia/fck/file/34643539403.pdfIn PDF document text
- http://xn--9d0b102a6wc3y4a.com/sa_upload/userfiles/file/20210908083227.pdfIn PDF document text
- http://philipwillettelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/netima.pdfIn PDF document text
- http://www.weilandensemble.nl/ckfinder/userfiles/files/60295328140.pdfIn PDF document text
- https://ciiinnovationsummit.com/ci/userfiles/files/54935416516.pdfIn PDF document text
- http://charmingcurls.se/upload/file/81373244431.pdfIn PDF document text
- https://totspotdaynursery.co.uk/ckfinder/userfiles/files/kovotabe.pdfIn PDF document text
- http://qdsenfeng.com/data/files/50925388620.pdfIn macro / runtime command snippet
- http://hoclaixebinhthuan.com/upload/contentFile/file/zedirazogitusek.pdfIn PDF document text
- https://pet-fashion.ro/mm/file/87752447842.pdfIn PDF document text
- https://totspotdaynurseIn macro / runtime command snippet
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=black+symbols+copy+and+pastePDF 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_off0000b9eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9EB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d1fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1FD | 15860 bytes |
SHA-256: 17a07984684bf841d20f18fd5401b1ef714592a83c66cfde22a9127782ffb75e |
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font_02_sfnt_off0000fac1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAC1 | 10880 bytes |
SHA-256: 1c0d80bd4ccb3c3c8bace8a0b84edfde09592949642741b903eefafd70c94c82 |
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