General
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Target
RobloxUpdate.exe
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Size
231KB
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MD5
e888706c3bb06f4ca5ee2476c4669a32
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SHA1
e8caccdcd618f82a4eae6aca13ed308391f58cde
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SHA256
f68e296a7e54e54985e8748b9b5308dbf92cca51c602fedddeb25759eb88c72a
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SHA512
1809ce5a99059b107cd15fe9ad82c986b904965460edfaa57d1ca6e542f0d0cf63ee95e26a5473c9f9fd9105f0c97105230ee6e62ff01193ee828f821f7bb79b
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SSDEEP
6144:RloZM9rIkd8g+EtXHkv/iD4LzazJ16aB8e1mPi:joZOL+EP8LzazJ9Z
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1150835675596333117/o-JcAkkZgW95Q4k_Ci9OvJOZ6J11KjhlCP6vR_0yruo3pNrw3PlpA2F1Jggqgax_hraX
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 RobloxUpdate.exe
Files
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RobloxUpdate.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: 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