MALICIOUS — b1c6dab15270dc9c75c5cebb6627b64234ecdebf9b347ffd5353c82687094c97

MALICIOUS — b1c6dab15270dc9c75c5cebb6627b64234ecdebf9b347ffd5353c82687094c97 is a script sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (96/100), attributed to the PowerShell family. 4 of 54 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: b1c6dab15270dc9c75c5cebb6627b64234ecdebf9b347ffd5353c82687094c97
• SHA-1: 291b3b866dcb96e68454686b7c1ef8080c9601ef
• MD5: 513f238e6672382a08cfa0887cec7e4a
• ssdeep: 24:ioIHzlFx87lUY2Zo55An/SQ9nEcvSPoH1gW4+ms8OQ8dDN7z0Nfzc0nYU:oHvx8yYRHQFEGSPswZ7NfzVYU
• TLSH: T16E13FEAD1F4301A9029133E289B537D6DAA06E4E844572D367C6F2A92DB5F33760B780
• Submitted as: b1c6dab15270dc9c75c5cebb6627b64234ecdebf9b347ffd5353c82687094c97
• File type: script · Size: 1433 bytes
• Verdict: malicious (96/100) · Family: PowerShell

Detections (4 of 54 engines)

• YARA: MalwareAnalyser built-in: Suspicious_PowerShell_Download_Exec
• capa (capabilities): capability:execution/powershell
• YARA: MalwareAnalyser community pack: TL_Base64_EncodedCommand
• Kaspersky (KVRT): HEUR:Trojan.PowerShell.Generic

MITRE ATT&CK

• T1059.001

YARA

• Suspicious_PowerShell_Download_Exec

Why this verdict

The malicious score of 96/100 is the fusion of 7 weighted signals:

• Encoded/hidden PowerShell download-and-exec (rule Suspicious_PowerShell_Download_Exec) - yara signal, weight 0.70, confidence 0.90
• Kaspersky (KVRT) flagged HEUR:Trojan.PowerShell.Generic (rule HEUR:Trojan.PowerShell.Generic) - engine signal, weight 0.55, confidence 0.85
• execute via PowerShell (rule execute via PowerShell) - capa signal, weight 0.40, confidence 0.80
• YARA: MalwareAnalyser community pack flagged TL_Base64_EncodedCommand (rule TL_Base64_EncodedCommand) - engine signal, weight 0.45, confidence 0.70
• Obfuscated powershell script: hidden-window (rule script-deobfuscation) - static signal, weight 0.35, confidence 0.75
• YARA: MalwareAnalyser built-in flagged Suspicious_PowerShell_Download_Exec (rule Suspicious_PowerShell_Download_Exec) - engine signal, weight 0.35, confidence 0.70
• capa (capabilities) flagged capability:execution/powershell (rule capability:execution/powershell) - engine signal, weight 0.35, confidence 0.70

Dynamic analysis (windows)

1121 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
• 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
• 20.190.167.149
• 20.190.167.65
• 52.123.252.215 AU · Sydney · AS8075 Microsoft Corporation
• 23.33.238.135
• 52.110.12.4 AU · Sydney · AS8075 Microsoft Corporation
• 4.230.171.124 KR · Seoul · AS8075 Microsoft Corporation
• 23.33.238.104
• 192.168.122.110
• 72.154.7.97 US · Moses Lake · AS8075 Microsoft Corporation

Embedded URLs

• http://www.msftconnecttest.com/connecttest.txt
• http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
• http://rb.symcb.com/rb.crl

Embedded IP addresses

• 203.26.79.13
• 85.210.193.152
• 72.154.7.107
• 20.42.65.91
• 52.123.252.215
• 52.110.12.4
• 4.230.171.124
• 72.154.7.97
• 52.148.114.188
• 149.154.166.110

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

Analyzed on MalwareAnalyzer by Cyble · Open interactive report