MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document contains numerous embedded links, many pointing to compromised or disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9959
Heuristics 7
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://archism.ru/uplcv?utm_term=need+for+speed+most+wanted+2005+apk+obb+download
- https://satnamunicipalcorporation.com/admin/ckfinder/userfiles/files/demupixomimekew.pdf
- http://asude.istanbul/ck_images/files/40419180822.pdf
- https://mp2020.csysadmin.com/ckfinder/userfiles/files/11816253746.pdf
- http://zsmnowakowski.pl/userfiles/file/tafos.pdf
- http://teraval.cz/res/file/54737820150.pdf
- http://vswet.ru/f/kixud.pdf
- https://allmassage.net/upload/file/20210918060509.pdf
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/62539a3b9ce9a9c5ef4f1048a42f1d45/kiborudusowoloxivewivug.pdf
- http://barcabianca.eu/upload/file/35785697339.pdf
- https://delta-relay.be/userfiles/file/vubawatasiwikerinovexog.pdf
- https://latgalesamatnieki.lv/files/file/46537036738.pdf
- https://mmagame.com/userfiles/file/nolebokilesagukabarije.pdf
- https://childrencareandliteracysociety.org/userfiles/files/masezolixerujukezugot.pdf
- http://telektrans.hu/editor_up/posarexususimasikig.pdf
- https://guptajimarriagebureau.com/userfiles/file/jozililonal.pdf
- http://anhuicrew.com/upload_fck/file/2021-9-2/20210902170724169797.pdf
- http://neodentpetrosino.it/userfiles/files/nemekujifelomodijujazajo.pdf
- http://benjapakee.net/UserFiles/File/50685894364.pdf
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/5d4c6260691ed40c11839bf8d623fa28/pumemixoguvowaxona.pdf
- http://80tner.friend-match.com/upload/files/29551944858.pdf
- http://hanilkwanla.com/uploads/files/19969852816.pdf
- http://aprt1day.ru/file/49616451022.pdf
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/fa9dcd55cb7cf0799de60fb61f830e07/50227683647.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ad9c.bin51ad5012ac10ccc47cbe1a33a381793217c81b8a66ddd542b421d6f5ef49f686 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD9C | 11236 bytes |
font_01_sfnt_off0000c7e8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7E8 | 16792 bytes |
font_02_sfnt_off0000dffa.bin7c0f7c14ba3fc4fca7f3b6fd45cf24511d3f92343f1851e0340f518a9b211350 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFFA | 14732 bytes |
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