MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with many URLs pointing to compromised CMS uploads or disposable hosting. The document body, though heavily obfuscated, contains references to 'star stable star rider codes 2021', suggesting a lure to a potentially malicious website.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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 http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/e61scpgerjoghoiljovlqoc6s3/pasilebexazilenozosi.pdf
- http://canadanur.com/resimler/files/81733986961.pdf
- http://akgikorea.com/file_upload/fck_upfile/file/24324746350.pdf
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/ii8684fjt056vc0c8ilng8ttpn/38349013296.pdf
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/c3770c316f2470a9ea447216ecf5c78f/14274073821.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acdb9810126---97404759044.pdf
- https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8b06997897---wadovepopemaponij.pdf
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/d5df262a4b96dc7cd2495c081701d5d1/48002348329.pdf
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/16076d7d125fa4---xijemudokofujigomadeko.pdf
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adf18de84fc---vediwudowuxawosewazowes.pdf
- http://teraval.cz/res/file/mezotixamibejasigupifi.pdf
- http://precedent.by/_newsite/images_from_html_editor/file/89010025376.pdf
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bb5cd5afa44---48809611880.pdf
- https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/ttjsjvon0jkng0fu9moh4hq7i2/rutulomipomab.pdf
- https://bawwabatrizq.com/userfiles/file/31865680786.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=star+stable+star+rider+codes+2021
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bea6.binde7817bb012a2e79505e619cb7052ed05b3dbc5d53c2bbcdfa5cdc185b71113a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEA6 | 5184 bytes |
font_01_sfnt_off0000d047.bine5b4a288222ed4d06d2a11335dd05d224b73541a621df54998bfa38f0bd97723 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD047 | 10684 bytes |
font_02_sfnt_off0000f48e.bin1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF48E | 4324 bytes |
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