MALICIOUS — d371f8da2be7e0d4acb9c7e6050c89dfe51933c53c29b4a9be18c976981e145b

MALICIOUS — d371f8da2be7e0d4acb9c7e6050c89dfe51933c53c29b4a9be18c976981e145b is a script sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (87/100). 2 of 54 detection engines flagged it.

Identification

• SHA-256: d371f8da2be7e0d4acb9c7e6050c89dfe51933c53c29b4a9be18c976981e145b
• SHA-1: b623a2c7d422f65934a4cb55090b1d74332cc11d
• MD5: b1f7c29c1e23bed6420dffef7a4aaade
• ssdeep: 1536:WfXJxkg5KU0dGqSTTAD67dxW6bdYHkktG7WniIt4QEs3+KII+Equ0gD4drnY0YGc:smdG+DiLxKZj7
• TLSH: T16335F89B399DEFCCCC4D86A39D98E9773F2B49123A5100C4C2BDC7546DA48E08C6546E
• Submitted as: d371f8da2be7e0d4acb9c7e6050c89dfe51933c53c29b4a9be18c976981e145b
• File type: script · Size: 57746 bytes
• Verdict: malicious (87/100)

Detections (2 of 54 engines)

• Microsoft Defender: Trojan:JS/Agent.AG!MSR
• Kaspersky (KVRT): HEUR:Trojan.Script.Generic

Why this verdict

The malicious score of 87/100 is the fusion of 4 weighted signals:

• Microsoft Defender flagged Trojan:JS/Agent.AG!MSR (rule Trojan:JS/Agent.AG!MSR) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged HEUR:Trojan.Script.Generic (rule HEUR:Trojan.Script.Generic) - engine signal, weight 0.55, confidence 0.85
• Obfuscated javascript script: dynamic-exec, defense-evasion (rule script-deobfuscation) - static signal, weight 0.55, confidence 0.75
• Embedded network infrastructure: https://www.youtube.com/iframe_api - static signal, weight 0.35, confidence 0.60

Dynamic analysis (windows)

1122 behavior events · 0 ATT&CK techniques · 0 dropped files.

Runtime network

• www.msftconnecttest.com
• rb.symcd.com
• rb.symcb.com
• inference.location.live.net
• 250.255.255.239.in-addr.arpa
• ntp.ubuntu.com
• desktop-hsgcbep._dosvc._tcp.local
• desktop-hsgcbep(1)._dosvc._tcp.local
• desktop-hsgcbep(2)._dosvc._tcp.local
• desktop-hsgcbep(3)._dosvc._tcp.local
• desktop-hsgcbep(4)._dosvc._tcp.local
• desktop-hsgcbep(5)._dosvc._tcp.local
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• 23.40.52.85
• 23.11.37.157
• 172.66.2.5 US · San Francisco · AS13335 Cloudflare, Inc.
• 142.250.195.238
• 20.42.65.89 US · Flint Hill · AS8075 Microsoft Corporation

Embedded URLs

• http://www.w3.org/TR/SVG11/feature#Image
• https://www.youtube.com/iframe_api
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

• www.w3.org
• n.top-t.top
• t.top
• n.top
• www.youtube.com

Embedded IP addresses

• 135.234.160.245
• 172.66.2.5
• 20.42.65.89
• 20.247.184.197
• 52.110.12.53
• 4.247.188.233
• 4.230.171.124
• 52.168.117.171
• 20.42.179.204

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report