Analysis
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max time kernel
147s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
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submitted
08-11-2022 16:12
General
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Target
2022-11-07-Powershell-script-to-install-Bumblebee-Peurix.ps1
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Size
170B
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MD5
299563c5074a9a77e4e0b85240d4237c
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SHA1
ac5bdbe219f4da3378cc1ac27e9f8c6496bea970
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SHA256
24610513b3eef44c19a79b0b769076ecdf7e0e25c556c0f5de5c50e18c29200b
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SHA512
3768aa232326c4864c92326dc52b2fc8959e9e843ab8b22f78168fad033843e16759fdbe171bfcc2834f8d46bd61a6aa9ab0e68695237dc062eed284e8da5549
Malware Config
Extracted
bumblebee
0311t2
39.65.8.170:443
103.144.139.156:443
107.189.30.231:443
91.245.254.101:443
194.135.33.127:443
Signatures
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BumbleBee
BumbleBee is a webshell malware written in C++.
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Blocklisted process makes network request 8 IoCs
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Downloads MZ/PE file
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Loads dropped DLL 1 IoCs
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Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
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Drops file in Windows directory 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 2 IoCs
Processes
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\2022-11-07-Powershell-script-to-install-Bumblebee-Peurix.ps11⤵
- Blocklisted process makes network request
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" /s c:\windows\tasks\bb.dll,BasicLoad2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of NtCreateThreadExHideFromDebugger
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
966KB
MD56e780435da8461940fc822f31b7368d2
SHA11f9467a1495ee143588e9b53f0a5b1ebe311d4b5
SHA2560a4af4996a5f1c091cde6b18907c08fe31f373d7477d2f524161a45d130a1fac
SHA51276d9bf6522278d9b9d7f3979bccbb894684cea1e87c034fcd71860e969fc367f6a7a42f67184296cdeb5f77a2893c307868f8bd0f6c4d0f548a09549b05833fe
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Filesize
966KB
MD56e780435da8461940fc822f31b7368d2
SHA11f9467a1495ee143588e9b53f0a5b1ebe311d4b5
SHA2560a4af4996a5f1c091cde6b18907c08fe31f373d7477d2f524161a45d130a1fac
SHA51276d9bf6522278d9b9d7f3979bccbb894684cea1e87c034fcd71860e969fc367f6a7a42f67184296cdeb5f77a2893c307868f8bd0f6c4d0f548a09549b05833fe
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Filesize
1.3MB
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Filesize
472KB
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Filesize
136KB
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Filesize
10.8MB
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Filesize
10.8MB