Behavioral task
behavioral1
Sample
WaveInstaller.exe
Resource
win7-20240508-en
General
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Target
WaveInstaller.exe
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Size
231KB
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MD5
0eca651a9a275b0674a052b757f4b9ae
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SHA1
d646b68d18a28ba263ea2930e58f0b30ac83b4a3
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SHA256
64f6576c6db1eaaefbe0ab36e362592c8b27ff856cfcb29c032d06c1f289df1c
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SHA512
d1f62b20625a982c3b59fdc56af47833b5f3e0ed2bb3aa03b1c8b71c3160999d87bc53f9f4f7bf1cdf6d45d87ff6e5c96a5cc0977c0da9b6ec1278b3c24870d5
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SSDEEP
6144:RloZM+rIkd8g+EtXHkv/iD4hE3sR8e1mRi:joZtL+EP8h/B
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1256283662257754162/oO2GYofXe1PATrHNs7R_nPHF_AfnP-YGm2NE2FG1zwAXoPlTvE-rPO0HfgjbQsp8OIHI
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 WaveInstaller.exe
Files
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WaveInstaller.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