MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, with a critical heuristic identifying it as a link farm. The primary URL, https://kuzutuzo.ru/strik, is likely used for phishing or to serve a second-stage payload. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://kuzutuzo.ru/strik?utm_term=performance+review+phrases+safety
- http://yblda.fun/adobe_acrobat_pro_apk_for_androidku2rk.pdf
- https://roromitekavu.weebly.com/uploads/1/3/4/5/134528712/muzekekonazutup-nodarozulize.pdf
- https://namevixezevir.weebly.com/uploads/1/3/0/9/130969021/0fea9.pdf
- http://sejusadi.22web.org/rubobaji.pdf
- http://3-bureaureport.info/batterie_pour_gps_garmin_nuvi_2595lm24j79.pdf
- http://nijeratazuw.iblogger.org/pugigikobagikoren.pdf
- http://vuvajujuli.mygamesonline.org/xunif.pdf
- https://topudikuwem.weebly.com/uploads/1/3/4/0/134042537/b1691b3da7.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://db7841a4-af10-4990-a2be-f084cd4acbf6.filesusr.com/ugd/e3c460_1dd3b8a976294dcda94e3d13d2a27bb8.pdf?index=true
- https://s3.amazonaws.com/zuponefi/weather_report_for_loveland_ski_resort.pdf
- http://xivoganunew.rf.gd/55055034361.pdf
- https://s3.amazonaws.com/mijumomub/android_studio_shortcut_to_import_packages.pdf
- https://25f35837-e8ad-4357-b490-8f69bec4165a.filesusr.com/ugd/96c61c_f737270d33964a9d8ebda39d12b0e82b.pdf?index=true
- https://s3.amazonaws.com/zumezeviwakiz/stranded_deep_custom_maps.pdf
- http://kubomefewofumim.atwebpages.com/gokugadosibanuxug.pdf
- http://zirivog.rf.gd/what_does_low_iron_sat_mean.pdf
- https://9d349da1-218b-4b59-9e37-2a90cab56d40.filesusr.com/ugd/de9003_eae688ff028a493192b3c06104763d51.pdf?index=true
- 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_off0000e528.bin4579cca2fe8bbf6fae35a07ce5970440dbb03a170f0caf22a025740eb62e6a99 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE528 | 5476 bytes |
font_01_sfnt_off0000f7b5.bin9e8a7c7d0b752ed99ff30914126e4c1e85d6c8d99d84ec8c62a18329eeb1999a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7B5 | 10896 bytes |
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