General
- Target Bootstrapper-v4.exe
- Size 689.0MB
- Sample260718-wvtqbacy4x
- SHA256 37c3405d646899446cf6084968a9adbef66447a4d009b92c0cf28ea194189885
- MD5 97c15b1e3dc8f1cdd85810cb37d92bf4
- SHA1 0878c09baff3ead4b2b9b77ffcc12de13dfaca41
- SHA512 a26d558f0e1b723f8a2999b215b851805b26cfbec7b5fad616ce0b4f8eca0448dff9c42d81768f690c0d8c545de6437f54c95ea63bb2d0d05ff8273d0b14dddb
- SSDEEP 98304:6vOMMSSoKtGDZV70YNVZlT9Q/gtrwODZOw2pnqxXIkmGXSf73SW0nZ/gf63FnHD1:pPWn0YNFT+/+wAB2BGXIkmGAD1wZ/Pe
- TLSH T10279331DD6E401F9E177E1F1CD928A12E772784A03B2E28F47B599A65F13A805D3EF02
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Bootstrapper-v4.exe
Resource
win10v2004-20260513-en
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
Bootstrapper-v4.exe
Resource
win11ltsc2024-20260709-en
32 signatures
150 seconds
Malware Config
Targets
-
- Target Bootstrapper-v4.exe
- Size 689.0MB
- SHA256 37c3405d646899446cf6084968a9adbef66447a4d009b92c0cf28ea194189885
- MD5 97c15b1e3dc8f1cdd85810cb37d92bf4
- SHA1 0878c09baff3ead4b2b9b77ffcc12de13dfaca41
- SHA512 a26d558f0e1b723f8a2999b215b851805b26cfbec7b5fad616ce0b4f8eca0448dff9c42d81768f690c0d8c545de6437f54c95ea63bb2d0d05ff8273d0b14dddb
- SSDEEP 98304:6vOMMSSoKtGDZV70YNVZlT9Q/gtrwODZOw2pnqxXIkmGXSf73SW0nZ/gf63FnHD1:pPWn0YNFT+/+wAB2BGXIkmGAD1wZ/Pe
- TLSH T10279331DD6E401F9E177E1F1CD928A12E772784A03B2E28F47B599A65F13A805D3EF02
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Downloads MZ/PE file
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Loads dropped DLL
-
Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Checks whether UAC is enabled
-
Executes a VBScript file via the Windows Script Host.
-
Suspicious use of NtSetInformationThreadHideFromDebugger
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
1Visual Basic
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1