General
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Target
BootstrapperV1.16.exe
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Size
3.1MB
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MD5
a834c8ed8dbbb8d75cc21391bacf9408
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SHA1
cb757f15a7a7664478b21e3d45b4e534c38de2c9
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SHA256
6afd9688d81781fc2adf2d26ac2e19faa8d5efbf17e2140e4aa211e0ad9380e6
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SHA512
aa33c9db85998f6a4d57b086d7a03f2d99fe652fd784bce148a07fcb5ada695a338a2c245ec85a236c66664b60db5958de120c1bf07fca71a33041799b895689
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SSDEEP
49152:bvzlL26AaNeWgPhlmVqvMQ7XSK1t/hBxnZoGdBzTHHB72eh2NT:bvpL26AaNeWgPhlmVqkQ7XSKT/X
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.221:4782
725876b0-1fce-4953-82cc-c4510d6870ea
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encryption_key
95F96F59ED02BFB8FE6F1E504EE0947C4B882971
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install_name
Solara Fixed.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
Solara
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 BootstrapperV1.16.exe
Files
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BootstrapperV1.16.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