Analysis
- max time kernel
149s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
29/07/2026, 06:19
General
- Target bootstrap.ps1
- Size 3KB
- Sample260729-g274ysyth1
- SHA256 cd17c6b555f761d60373659824bf805e1510538226e4c7028e19d7494937a333
Malware Config
Signatures
- Badlisted process makes network request 1 IoCs
Network request originating from process or tool commonly abused by malware.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
- Modifies registry key 1 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\bootstrap.ps11⤵
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\.claude\downloads\claude-2.1.220-win32-x64.exe"C:\Users\Admin\.claude\downloads\claude-2.1.220-win32-x64.exe" install latest2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\reg.exeC:\Windows\System32\reg.exe query HKLM\SOFTWARE\Policies\ClaudeCode /v Settings3⤵
- Modifies registry key
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C:\Windows\System32\reg.exeC:\Windows\System32\reg.exe query HKCU\SOFTWARE\Policies\ClaudeCode /v Settings3⤵
- Modifies registry key
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C:\Windows\System32\where.exeC:\Windows\System32\where.exe git3⤵
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C:\Windows\System32\where.exeC:\Windows\System32\where.exe npm3⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
.claude.json
.claude.json
.claude.json
.claude.json
.claude.json
.claude.json
.claude.json
.claude.json
.claude.json
.claude.json
settings.json
__PSScriptPolicyTest_mu4besrc.w31.ps1
memory/3596-0-0x0000029277F90000-0x0000029277FA0000-memory.dmp
memory/3596-10-0x000002927A790000-0x000002927A952000-memory.dmp
memory/3596-11-0x000002927AE90000-0x000002927B3B8000-memory.dmp
memory/3596-21-0x0000029277F90000-0x0000029277FA0000-memory.dmp
memory/3596-79-0x0000029277F90000-0x0000029277FA0000-memory.dmp
memory/3596-13-0x0000029277F90000-0x0000029277FA0000-memory.dmp
memory/3596-9-0x000002927A010000-0x000002927A032000-memory.dmp
memory/3596-94-0x0000029277F90000-0x0000029277FA0000-memory.dmp
memory/3596-97-0x0000029277F90000-0x0000029277FA0000-memory.dmp
memory/3596-14-0x0000029277F90000-0x0000029277FA0000-memory.dmp
memory/3596-1-0x0000029277F90000-0x0000029277FA0000-memory.dmp