MALICIOUS — 81e8f55f013063e915ad8d09315fba3dad6067cc56c389b6430ade6d886cbb4e

MALICIOUS — 81e8f55f013063e915ad8d09315fba3dad6067cc56c389b6430ade6d886cbb4e is a script sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (87/100), attributed to the Redirector family. 2 of 54 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 81e8f55f013063e915ad8d09315fba3dad6067cc56c389b6430ade6d886cbb4e
• SHA-1: b3892adf4f5f7fec3b260f51ae4bce455b61b4ea
• MD5: b18252bf2df052c7d5bdb2806c57c904
• ssdeep: 48:MkagdrSf1QLZR4/RjmbxKa9whiwhQwhB+K0IRjmbxKa9whiwhQwhy1RjmbxKa9wf:hVIQL+gxKzb9XhgxKzb9U1gxKzb9Gp+
• TLSH: T13F17FF19EBC0E583AD0933BA06FF1D945C61C41B3D8BF8F718D1A64BA78997818C8625
• Submitted as: 81e8f55f013063e915ad8d09315fba3dad6067cc56c389b6430ade6d886cbb4e
• File type: script · Size: 3451 bytes
• Verdict: malicious (87/100) · Family: Redirector

Detections (2 of 54 engines)

• Microsoft Defender: Trojan:JS/Redirector.YBAA!MTB
• Emsisoft (Emergency Kit): Trojan.JS.Agent.UMH

MITRE ATT&CK

• T1112

Why this verdict

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

• Microsoft Defender flagged Trojan:JS/Redirector.YBAA!MTB (rule Trojan:JS/Redirector.YBAA!MTB) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged Trojan.JS.Agent.UMH (rule Trojan.JS.Agent.UMH) - engine signal, weight 0.55, confidence 0.85
• Obfuscated javascript script: dynamic-exec (layers: char-code) (rule script-deobfuscation) - static signal, weight 0.55, confidence 0.75
• Embedded network infrastructure: https://lobbydesires.com/location.js?la=1 - static signal, weight 0.35, confidence 0.60

Dynamic analysis (windows)

1179 behavior events · 1 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
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl
• 23.40.52.209
• 23.11.37.157
• 20.190.167.65
• 20.247.185.124 SG · Singapore · AS8075 Microsoft Corporation
• 52.123.252.225 AU · Sydney · AS8075 Microsoft Corporation
• 23.198.40.44

Embedded URLs

• https://lobbydesires.com/location.js?la=1
• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded domains

• supsystic-42d7.kxcdn.com
• lobbydesires.com

Embedded IP addresses

• 203.26.79.13
• 20.42.179.204
• 13.69.116.105
• 72.153.5.135
• 20.247.185.124
• 52.123.252.225
• 52.110.12.21
• 4.230.171.124

More Redirector samples · Latest analyzed threats · ATT&CK coverage

Analyzed on MalwareAnalyzer by Cyble · Open interactive report