General
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Target
release.exe
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Size
230KB
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MD5
27ae7d1c4a168b3148f81bab96662c15
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SHA1
a35fb6e8bd4a9fb6733943178c515eae9234334e
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SHA256
221b14d8e0fe2b21b4794ac6c9b0f0ee1a80830891078dc97d8eaaba534500a8
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SHA512
f110371250e501206c8c8cf5a8f762c9e8bfc30999cf7e57d6a8e8e1b6dd8d9455655a1078a0fde1b84e750b21d4e9444a4f325d9e39a791e260efa9f9f5cff6
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SSDEEP
6144:jloZM+rIkd8g+EtXHkv/iD44HBXIuphCPn6opNsVlb8e1mrzMi:BoZtL+EP84HBXIuphCPn6opNsXu
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1224099644783464478/ySN5BmBzKGCariVTBsCuGQqRDk6N15Fdfqx-p_99a9IdxHehy126YA3OMqkAKGvWhQsO
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: 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