General
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Target
Umbral.exe
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Size
231KB
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MD5
46bbe6bc5429714093c47fd3ab01c078
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SHA1
67507abcd9e1be3b86b0efb57b60266ac609481f
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SHA256
63d3d7fa239794ce2b47c70445eee9cb6549fde64dea4185f17df6ace12d1c4a
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SHA512
2e0ce4935cb658e3dadc78bc2d5ce779e4d9f9be491d3b09436bf16de74ab42beb5b41adaf3f9f1ae5c918e16d5f90428ab269cb78fb8df00bdae666e8e9f56a
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SSDEEP
6144:RloZM9rIkd8g+EtXHkv/iD4r6lHLxCqVAQhTuOL4lb8e1m5Mhi:joZOL+EP8r6lHLxCqVAQhTuOLEI
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1285680129904742451/6y1w---_qwoRWgXR29sNLoYAVVlnQIISb4eKeu8IQtwQsDUqaicf2Yzj053g0NvJ2TEb
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: 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