Static task
static1
Behavioral task
behavioral1
Sample
Umbral Builder.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Umbral Builder.exe
Resource
win10v2004-20230220-en
General
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Target
Umbral Builder.exe
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Size
79KB
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MD5
596a5541a68bcb4d5c606f4ca54fbbb5
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SHA1
fcf605d48237f2413ab8a3c92b3337e12cc38121
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SHA256
8e5653fb47d71c24d84ef6688606133661be290d7f395bc39fd7485389eb6426
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SHA512
ef2121e13887852ff9ab9b5cf85dce6fc4d4b85dc0981b0bd33211dc9c5c95bb6595d1071030f093875567ab3be5aa6703d4759339a27a0b94d45807f1fbcf91
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SSDEEP
1536:y5TnXqJ1MdYC0NE6BxI2HUxWuFXhZupcuS1WPqsVtBp:wTnX21MdYC0NE6BxI2HUxWuFXhZu+uqW
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Umbral Builder.exe
Files
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Umbral Builder.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
Imports
mscoree
_CorExeMain
Sections
.text Size: 72KB - Virtual size: 72KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 5KB - Virtual size: 5KB
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