General
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Target
123.exe
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Size
484KB
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MD5
2aa4f648d160439b834046fc7eaf4db3
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SHA1
7b0da6b64838ea63766e628893b8a08acff406f7
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SHA256
b34cce587000413f4f48699964dbf1cfcbb2718f0c7749196e1caf154743702d
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SHA512
d12de3fa54f2bfa81498c1301d957793095869d334d09dffe5be429e92bc2e064ad4a025da643164a25a499fa26ded267e08f847ce8c6b6b0a4242083d42e75e
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SSDEEP
12288:soZrL+EP8e/WB1DA0rgSjVg8ZWVo8kYFNLQd2nLyNz67:yI8wWB1DA0rgSjVg8ZW95MILyM7
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1278684969610252319/yBhsLJdMxB4CMKJHb-dAGghzSPAr0CHcCs4V4WXp7t2rrE6M1zTIuH-KHwgs32LoA0dm
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 123.exe
Files
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123.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: 258KB - Virtual size: 258KB
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