Behavioral task
behavioral1
Sample
test.exe
Resource
win7-20240903-en
General
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Target
test.exe
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Size
360KB
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MD5
d16b4139ed4406bce80daf7f64ea7f76
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SHA1
d1380cc067fe320dc16e43ac31208e2ce0d7fd5c
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SHA256
44806f5e8beab048f45916e5723a475bd20f2684929ec4cc92b1096168a4e32f
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SHA512
cee8211366528d5c5bb821a2c6c53f445b43659e43734ce9cb16a368dcd2d28d5e909c5e489482625ef73daa7b387d939829089c69961b3291a7e741b29a0fa6
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SSDEEP
6144:1loZM+rIkd8g+EtXHkv/iD4p9d0mkrHMp9YW3X2B0b8e1mLieq:XoZtL+EP8p9d0mkrHMp9YW3X2iVeq
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1284669235687198743/YM3nJjFx4CJ-kn46QCwSQbLnGTqePDB1Xn00-cOyln-4FF_bnfPT7KWZpGAk6b6xR8CE
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 test.exe
Files
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test.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: 132KB - Virtual size: 132KB
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