MALICIOUS — fdf52c1d897677d1a00110fbd7a614cab0e03b77e8c9f75a775a50318c3733c2
MALICIOUS — fdf52c1d897677d1a00110fbd7a614cab0e03b77e8c9f75a775a50318c3733c2 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:
fdf52c1d897677d1a00110fbd7a614cab0e03b77e8c9f75a775a50318c3733c2 - SHA-1:
92290bfe363ccdccb4da724c4e6f32f57bbef762 - MD5:
05fca8209877dafe6aa43fd756f68395 - ssdeep:
96:DT6T/vXhDGR8jyhwjYfaPt0ORH3Re+hz8e6DwkWfTCqT3nL+SaTwMXh0:DqvXhjyhwcEmyjzH+23LKTwMXh0 - TLSH:
T1E51D7F195D71BFA60C51AF21425F36CAC2E161648002F0D0F9D8907DEE7AF713DA5BA2 - Submitted as: fdf52c1d897677d1a00110fbd7a614cab0e03b77e8c9f75a775a50318c3733c2
- File type: script · Size: 6265 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)
1123 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
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- desktop-hsgcbep
- ntp.ubuntu.com
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- 250.255.255.239.in-addr.arpa
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
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=1787787049&P2=404&P3=2&P4=JUx%2b%2fjFgUCQu3UWn9p44bXMIyaDLePi%2fIWw0s3OqzXg90bFxloImuaocMn7Fqwe4%2buTy6S14fkkNkIwSrIJQvg%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=1787787096&P2=404&P3=2&P4=bgN%2fg27ip5XELP9U2bFSiEpGMBzWY%2bSzU5viAc2W3Nm9wASaI12c5WbRKpNFq9oHOaNdEbbCJzrD%2bqUYcwGPGA%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=1787183783&P2=404&P3=2&P4=kZ1ppw20CXxeALU7dmEkZd92wo1huCsWKRyPsLit45Ex6L2WZvg%2bc11RQu%2b5ELIYFkAc%2b4%2b27V6U99i34GbJaA%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=1787183333&P2=404&P3=2&P4=Wl0XKVQmIXGc%2fKLIJjIHSFpgu%2flHmHYVI1Kh1Pp1lzJpKzjGfDS2ZX45E16vASeMYVIoRzKjL1UoxOaOs7vHkg%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 172.172.255.218
- 4.150.223.108
- 52.110.12.10
- 4.230.171.124
- 20.247.184.197
- 74.178.76.54
- 20.236.44.162
- 40.99.133.210
- 135.233.95.144
- 52.123.129.14
- 52.123.252.229
- 72.145.35.105
- 20.50.73.5
- 203.26.79.13
- 57.155.101.212
- 52.123.252.194
- 40.79.167.10
- 20.184.175.5
File paths
- C:\\Windows\\syswow64\\WindowsPowerShell\\v1.0\\powershell.exe\
More Base64 samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report