General
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Target
release.exe
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Size
234KB
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MD5
d3b91f66624b3bc4d6fdc49e7ed650e8
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SHA1
cbe16636131cd52582078775d46f309c4f3a6164
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SHA256
2b49183d5f11acec481c4de2bbf9f7059f2a99137c0d26852be34a8a992275c8
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SHA512
c2215aa8a089c26bd45f96673ce165bf1e9c937a0b54742e4b01c6f79165f5875ef5e7bde86b80d988e38d2379cab14ac3aef920a3844bb09a51f7eacd8a6f10
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SSDEEP
6144:HloZM+rIkd8g+EtXHkv/iD4evkQrRiK1rwBzOur8lb8e1mTYaij:FoZtL+EP8evkQrRiK1rwBzOurcFf
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1226211633320427650/4AB_r-5Q7D5mN9GdOOKvjGMNmRsdPpYO-7d78Olf6h-fyJtK4mRcK7fbSJG7ran98sbf
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 release.exe
Files
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release.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: 6KB - Virtual size: 5KB
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