General
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Target
boosttool1.exe
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Size
411KB
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MD5
3744fcd13385f8698aefbd25458b555f
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SHA1
3ad84176dd5b9a3196fa278be1e8e5ef508ddd21
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SHA256
fb0e0f437401fbdf3802b3399fd3705100db1c5859680b2240a1f794d48997d7
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SHA512
16a75080102d960f09b904037ee16db0c5bcfa16e551c1450e03bf12bac4908d0516ded36158bab3a165894529144705d69647aebb716882b3e5b1946b3a0a0c
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SSDEEP
12288:soZtL+EP8huEPecjfUB1gevPeg/x4s5dMk:kI8wEPecjfUB1gevPegPMk
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1361161788237942885/r5Ze6PWf97p9EiM1n9IQfZBllJYAOKndFw3T_MhDk4ghrBGnZxKfzwzHVt1jearLugto
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule sample family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource boosttool1.exe
Files
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boosttool1.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 228KB - Virtual size: 228KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 182KB - Virtual size: 181KB
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