Static task
static1
Behavioral task
behavioral1
Sample
Umbral.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Umbral.exe
Resource
win10v2004-20230220-en
General
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Target
Umbral.exe
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Size
229KB
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MD5
4a5c7a582170a0828f3a9fbbea16098b
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SHA1
1ca1b82410195ca8bef6bd45c774313dc4b93f39
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SHA256
bef4242e4d87219f42ffe28e6290a576b83670f6ad7fd9b00e3c160abedf5e87
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SHA512
6c8354350b29b616b8d048feed0fdd1213fd36a96a4551a1c2642006731f2f6bb69839e2508cee8c43b7ee396b30ba93ad6fd1ffab287aecbeb9fee2f9f10fad
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SSDEEP
6144:9loZM+rIkd8g+EtXHkv/iD4H+SprRiK1rwBzOur8Ib8e1mUVi:foZtL+EP8H+SprRiK1rwBzOurV4
Malware Config
Signatures
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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 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: 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