MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or redirection scheme. The document body, though heavily obfuscated, contains metadata related to 'wkhtmltopdf' and 'firmware', hinting at a lure for users seeking software updates. The presence of numerous external URIs, including a potentially malicious one on 'druttle.ru', supports the attack pattern of directing users to external, potentially harmful, sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://druttle.ru/strik?utm_term=sp+racing+f3+evo+firmware PDF link annotation
- https://pajodutakimileg.weebly.com/uploads/1/3/4/4/134474341/konivuvajolig.pdfIn PDF document text
- https://bakadowo.weebly.com/uploads/1/3/1/3/131380427/3ca3084cb4e647.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369317/normal_600f59a15dbd5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500186/normal_60356947c5b28.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4391620/normal_5fcacdb9922d4.pdfIn PDF document text
- https://fabirakarag.weebly.com/uploads/1/3/2/7/132710689/tibavobuvar.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4371004/normal_6005586fb97bc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4464724/normal_5fd1df80446ff.pdfIn PDF document text
- https://gegiritofizupog.weebly.com/uploads/1/3/4/6/134644009/6955787.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4493221/normal_600a6c66b4e1a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387920/normal_5fed535f40530.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4373757/normal_5ffe87b558909.pdfIn PDF document text
- http://lighterusb24.site/couples_dress_up_games_onlineutc5u.pdfIn PDF document text
- https://pufodafu.weebly.com/uploads/1/3/5/9/135959320/61aa6f142c028.pdfIn PDF document text
- http://yogistika.space/mibenemupixikikifaxipam8xgdq.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/vatosolikijike/bolajunerekeb.pdfIn PDF document text
- 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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d292.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD292 | 6476 bytes |
SHA-256: 526c5a2175551476bef9e67e23fc16d118bda5f5d89964818a68e3a853678add |
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font_01_sfnt_off0000e299.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE299 | 5544 bytes |
SHA-256: 64997b30d97c58478321b9921d6d934d89d0d6e22851d765341c7333e3c96433 |
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font_02_sfnt_off0000f581.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF581 | 10280 bytes |
SHA-256: 1db0e1eeb3332d428c3027d8f679f74df9518b13095e18b648c867f396434aff |
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font_03_sfnt_off000118a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118A4 | 16208 bytes |
SHA-256: 560e11d5da3ed60647d844d0127c34f4fbbc0b68999cbe35161ddcd790341c9f |
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