General
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Target
cybersec multitool.exe
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Size
631KB
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MD5
8b2224504b56a273fcb096f266c8946e
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SHA1
d25adb8c1e4370e4e5de7e69eead5737404e9401
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SHA256
6b5a764726812a78d0f0cfff4921f2c15c47f7cc265cb7dd9f293aa4728a1c19
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SHA512
1d3fe9628dd39b4d94fe8e6ed5e58576337a7a94effce38530530c695fb25fbe4e8a3c62efc73d0511a3daa8966afec7d559a50c48483451e68d04cbc9229479
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SSDEEP
12288:5oZtL+EP8YOkSt74szYKrd4UBnvmiMdRC:XI8vkSt74szYKrd4UBn+iMdA
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1311512162442674258/KZ7Yf6xtuzDgeDzhbkhFHunjKft3Vjq7gk__oOyCg4FN2mQmI4IlBQeKzeh515-W6ojX
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 cybersec multitool.exe
Files
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cybersec multitool.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: 227KB - Virtual size: 226KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 403KB - Virtual size: 402KB
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