Behavioral task
behavioral1
Sample
DominantExecutor.exe
Resource
win7-20240903-en
General
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Target
DominantExecutor.exe
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Size
235KB
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MD5
ebc311b832b0270e6e821f172455b932
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SHA1
e8eda44e191962d8f0c1baeb7ac544e67f916df2
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SHA256
5258c5c9535c48eb0f8a5b4ddc3f4deb8d001230e88d9cab5e25201eaececb60
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SHA512
8a007d4ec12ed739f1ae3ca2faa1c744df7d4418ceeb06b7adf88bcd094a9cfd0b9b26aa75872630e6d41bc8b9b240938591abb58ba8c8904fb098c2bec2df0f
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SSDEEP
6144:rloZM+rIkd8g+EtXHkv/iD48gIsywvrYJhkijD65Wb8e1mmi:poZtL+EP88gIsywvrYJhkijD6Qk
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1300087157695840338/4AgTcQFj5qhYVjIbdfQX2kFeEbbbPL3iygxBy0LbUeRDXy6rjrRP1q4CTLCZHqig4afU
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 DominantExecutor.exe
Files
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DominantExecutor.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: 6KB - 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