MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, identified as a link farm, with the primary URL being `https://bologen.ru/strik?utm_term=cortisone+shot+in+the+knee`. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan. The presence of numerous external links suggests an attempt to redirect users to potentially malicious sites for phishing or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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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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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://bologen.ru/strik?utm_term=cortisone+shot+in+the+knee
- http://prostotit.site/significant_digits_addition_and_subtraction_worksheet559wj.pdf
- https://cdn.sqhk.co/maxegugej/PpNgdIn/access_gmail_contacts_in_outlook.pdf
- https://cdn.sqhk.co/titabofasika/iZbNsie/46395553126.pdf
- https://cdn.sqhk.co/vefusujix/B5OiggI/proton_bus_simulator_2020_download.pdf
- https://cdn.sqhk.co/muvotugi/jdhgO21/28987452912.pdf
- https://cdn.sqhk.co/dubikewe/ZAgeJOF/vugupolo.pdf
- http://opros.xyz/ladexopaloxesopedipo3ch65.pdf
- https://totidulabi.weebly.com/uploads/1/3/1/6/131606487/nunabirijobar-tegozirufed-vomefewoso.pdf
- https://sefujokugitexas.weebly.com/uploads/1/3/1/4/131408298/lasofo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/xujitezu/71009761979.pdf
- http://luremugaxufarup.epizy.com/paxilumitabobupowogal.pdf
- https://s3.amazonaws.com/vuliwisuwig/vixikivelejolesimara.pdf
- http://novoboninixeme.epizy.com/81003778397.pdf
- http://malenezi.epizy.com/hp_laserjet_p2015dn_error_codes.pdf
- https://s3.amazonaws.com/memobofilenabon/plural_nouns_with_es_and_ies_worksheets.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://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f39f.bin375ad6edfe4a8b4216638bfe2ff9f5caaaa0fbd31a11c5c4ede64d17c379e010 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF39F | 4500 bytes |
font_01_sfnt_off000102df.bina51bc2b3461c69b2f68afdba93ccf6135cb0cc6b72ba469bd00fc42e4e101f0c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102DF | 10688 bytes |
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