MALICIOUS — 934f1616869ac5847a2df076c6629ff0e0ce0ce8a5594fa3ac5c2683219be6c4
MALICIOUS — 934f1616869ac5847a2df076c6629ff0e0ce0ce8a5594fa3ac5c2683219be6c4 is a script sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (70/100), attributed to the Base64 family. 4 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
934f1616869ac5847a2df076c6629ff0e0ce0ce8a5594fa3ac5c2683219be6c4 - SHA-1:
05b77ae109e71c46f026f4914fa5e31840757c41 - MD5:
b564fa8c2473c0e0ce322fe7ab046af4 - ssdeep:
96:DT6T/vXhDGR8jyhwjYcEXw9PLU6sIxkKFKaddKcO9oUx111+3nL+SaTwMXh0:DqvXhjyhwc7YhhO9ZQ3LKTwMXh0 - TLSH:
T15C1D9F096E71BEAA0C51AF21425F35CAC6E161248101F0D0FDD4A43DEE7AF743DA1BA2 - Submitted as: 934f1616869ac5847a2df076c6629ff0e0ce0ce8a5594fa3ac5c2683219be6c4
- File type: script · Size: 6025 bytes
- Verdict: malicious (70/100) · Family: Base64
Detections (4 of 53 engines)
- capa (capabilities): capability:execution/powershell
- YARA: MalwareAnalyser community pack: TL_Base64_EncodedCommand
- Microsoft Defender: Trojan:PowerShell/Rozena.HNAB!MTB
- Kaspersky (KVRT): HEUR:Trojan.PowerShell.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 70/100 is the fusion of 3 weighted signals:
- Obfuscated powershell script: shellcode-injection (layers: powershell-encodedcommand+base64) (rule
script-deobfuscation) - static signal, weight 0.55, confidence 0.75 - 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 0.35, confidence 0.70
Dynamic analysis (windows)
1286 behavior events · 0 ATT&CK techniques · 0 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- 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
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787848579&P2=404&P3=2&P4=gnR2a1akVyDK%2fZNT7G%2bzPGW0HcqS%2bZk%2f3B8D1lchiCPN1FWCTJAU3kAHRuW6xub9J7SW2IShgpoKLqm50paY1Q%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787848589&P2=404&P3=2&P4=DouDF4Aae8OgBceAllqpdvd9v%2b%2byrFa1oUKKw7lSIL9aZScj7yhDFw7RjhChyDiFXLE18BPw2QmnS2iTeLjjMQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787848579&P2=404&P3=2&P4=gnR2a1akVyDK%2fZNT7G%2bzPGW0HcqS%2bZk%2f3B8D1lchiCPN1FWCTJAU3kAHRuW6xub9J7SW2IShgpoKLqm50paY1Q%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787848589&P2=404&P3=2&P4=DouDF4Aae8OgBceAllqpdvd9v%2b%2byrFa1oUKKw7lSIL9aZScj7yhDFw7RjhChyDiFXLE18BPw2QmnS2iTeLjjMQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5?P1=1787245270&P2=404&P3=2&P4=F9X4ocPpLKF1o3QOCchUGBMeUk15%2f%2b3I99K7r29ZVlVkXDVkOSXwBGQK%2bZtsor9FM9YNTMwQNbSr%2fvfEYDQV8w%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/b56480f9-8215-4de7-ba7e-8e690088d21d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/b56480f9-8215-4de7-ba7e-8e690088d21d?P1=1787244863&P2=404&P3=2&P4=G9IajpwOXRl3ab8Dw3JeF1oa4AfBtKtWF0IJqVZjnbLPeAVB%2fYsI26Wccno9Ed8lhFD0OC5DsxMJR00yy%2f0Lng%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 172.172.255.216
- 51.132.193.104
- 52.123.252.236
- 52.110.12.24
- 4.230.171.124
- 52.230.60.54
- 20.165.94.63
- 20.76.201.171
- 52.123.129.14
- 40.104.4.2
- 135.234.160.244
- 135.232.92.34
- 203.26.79.13
- 92.223.78.30
- 4.150.223.104
- 4.150.223.98
File paths
- C:\\Windows\\syswow64\\WindowsPowerShell\\v1.0\\powershell.exe\
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report