MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or SEO manipulation tactic. One prominent URL, https://druttle.ru/strik?utm_term=acer+laptop+win+10+pro, appears to be a redirector. No scripts were extracted, but the PDF structure and link farm characteristics indicate a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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=acer+laptop+win+10+pro PDF link annotation
- https://cdn-cms.f-static.net/uploads/4455902/normal_601d618861ca3.pdfIn PDF document text
- https://cdn.sqhk.co/lopijikuvi/h6haijf/quiz_buzzer_circuit_using_relay.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402533/normal_5fe3eb5bab8a1.pdfIn PDF document text
- https://cdn.sqhk.co/bamazaludez/jAzhbFR/90948115848.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402724/normal_5fcf266dd1f4d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4428078/normal_60307a2eac8ac.pdfIn PDF document text
- https://cdn.sqhk.co/bijukipuj/jdih2Yy/street_rage_4_cheats.pdfIn PDF document text
- https://cdn.sqhk.co/fudimesa/jeihzjb/lodif.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/fifomi/vupodiforeriwalijopategag.pdfIn PDF document text
- https://9cc02d22-446e-415d-9686-6e49aadcb3b3.filesusr.com/ugd/aa6a08_45f85c0b9c344d6fa26bb0db3a127e3e.pdf?index=trueIn PDF document text
- https://d8d078ea-10ec-4787-8e21-ef6e32b87a24.filesusr.com/ugd/8f6098_4184970678f44fba9c60a7495c0028a1.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fadedosi/airtel_money_app_recharge.pdfIn PDF document text
- https://ba789de2-c385-43ee-b32d-a34c698d1993.filesusr.com/ugd/b7082a_dc3017c37b104b04ab6ce0aeee77208b.pdf?index=trueIn PDF document text
- https://11ab4cf5-156d-4417-99e9-5039b2a7eb5f.filesusr.com/ugd/82d61e_8fcdaf0fd7c74272bcb2e2a193abad1e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/rexogeguxosix/xuritonurugewesosokaliz.pdfIn PDF document text
- https://973697ad-ffa4-4f9d-85cd-0c9d1ea039ee.filesusr.com/ugd/5f5755_f67dd59393294a17b19026404ded4556.pdf?index=trueIn PDF document text
- https://34e51215-b586-4e01-b3ea-a219475a7b91.filesusr.com/ugd/46481b_aa8eb16a6a7044aabfbaa82e67cb8a18.pdf?index=trueIn PDF document text
- https://1801fa0f-56e4-4894-8452-b8e06651d4be.filesusr.com/ugd/868401_f78bf9b2051744a0a4ffaf5161559c93.pdf?index=trueIn PDF document text
- https://8ecf7690-1f99-4e28-a4b6-3228ba9731d7.filesusr.com/ugd/63d3ad_691ad0885aa24d748579987ac127bbc5.pdf?index=trueIn 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
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fa70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA70 | 5024 bytes |
SHA-256: 43af0a5d8a9f47d8388166f40ee9318a7a76ad1fed165e06c595fc62ebd6b59b |
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font_01_sfnt_off00010baf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BAF | 17396 bytes |
SHA-256: f65f1d2c1131ca6d0b54ed2065e3f70d8e985229e50cfe44b08bdc2821dbe33f |
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