Behavioral task
behavioral1
Sample
True-Bootstrapper.exe
Resource
win11-20240802-en
General
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Target
True-Bootstrapper.exe
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Size
3.1MB
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MD5
6082d5311c07b44ec1778f62da5e482f
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SHA1
1fd7a8c27ede7d4c6b713deeaa01aa9698b437f4
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SHA256
826b7c6ae5ffb745e69413d1070e3e5e4da1a919b0b5cecc8cb68943be85de13
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SHA512
4cb40d8164403fe8bdac8a215a65d5c1c3872edf5ec5c594875d07d748c383b43a2e65a4e361ba74ed7ec2c78649c76ddc893600adea0b34e8a4fa61ed761e60
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SSDEEP
49152:DvxhBYjCO4Dt2d5aKCuVPzlEmVQL0wvwkaF6xLzoGdxUTHHB72eh2NT:Dv5t2d5aKCuVPzlEmVQ0wvwfUx3
Malware Config
Extracted
quasar
1.4.1
BootStrapperV1.5
192.168.1.8:4782
ef2daa4a-5fe6-4ae9-8c41-c6cb7782deb2
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encryption_key
A60A789933B6B1FF275BE32C9A1FEBEE7B8AEAA9
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Bootstrapper.exe
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource True-Bootstrapper.exe
Files
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True-Bootstrapper.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ