General
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Target
Loader.exe
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Size
230KB
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MD5
01ef484bd08794522afb7af0f4a39159
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SHA1
7e9edc911734c592881899a5271bfa83e112ab12
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SHA256
2e1ddba1f76d93d7354190865523d53ff0b1f14876da06cc61f1bde9b6b686a4
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SHA512
e6ab72865d8a7dd29e1d04029a9be5f46a199614a8b67cdae27e2e31cb2a96827b8b39a73c103d2bc67713909b0d32e6b9f02d6dd714bd889b544eff0585627b
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SSDEEP
6144:jloZM+rIkd8g+EtXHkv/iD4z1MKYe5xyuXKYZd8O+gbb8e1msi:BoZtL+EP8z1MKYe5xyuXKYZd8Ci
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1324149676450123820/Ch478qL19IuuscU5ZnjMw3QZNcaeE-OInimQf1TXgW5cTcg_87xf6oUZDJV_I0Uk6sWI
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 Loader.exe
Files
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Loader.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: 2KB - 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