General
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Target
Umbral.exe
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Size
227KB
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MD5
7e9faed032d384d5b0e472edc0f3ef20
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SHA1
3a5ee16bbd96b209b763769ae984025d2c9212ca
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SHA256
04da8c2eabf58cfad930f0e8b70cf9158cbcf17b0544cfb4313a71f805122ec5
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SHA512
5a7145c434fb63b98b46533190c89d8779d0818b35ac681f2cc1471841267256fbcce1c92ab467f7a2d1aa17aa8507bec698ef87115e0825b7a37f75eeec16de
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SSDEEP
6144:+loZMCrIkd8g+EtXHkv/iD43I/njpaC9vop7mGzJrwb8e1mBi:ooZZL+EP83I/njpaC9vop7mGzh4z
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1176252138050035753/gheqRjUXIc9e4b_sHscIFiZj7jG0ou-TFoc_JordCTCpn4dkh6_-Q0QnV9EVX_jysDfz
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 Umbral.exe
Files
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Umbral.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: 224KB - Virtual size: 224KB
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