General
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Target
yukariPRO.exe
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Size
231KB
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MD5
83617498ad1496a62a531bcc1e3719a0
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SHA1
80d5f3363370f67086342b43a780362e09171bb8
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SHA256
02c1514216aac754514600a3958d3b52311ea8e4dfd3eff1768ee382db1d611c
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SHA512
5598953ab899443708e1c4c7c7fd762e43c69d2e40a8af64f48606fda6e275354c6b13ac9d467c1210dd2d9b55bd01dcfe2ab89188e225a38e2b125a543a557e
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SSDEEP
6144:GloZMDkOQVGHstJZWdhQETaUNTJq8DjghVkiPviCrj8e1mUJxjDS:woZXUHsHuLNTJq8DjghVkiPviCnPJxj+
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1329937672709345321/Jk3tShKfPuhT6PHIc_ohSYHsDFNPEuycYnvEnFJp6d106ycgjUyJxWSCWzE_nXJjpP6H
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 yukariPRO.exe
Files
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yukariPRO.exe.exe windows:4 windows x86 arch:x86
Password: 1
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: 1KB - Virtual size: 1KB
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