General
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Target
svchost.exe
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Size
234KB
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MD5
4de282f3a3d77c0b217fa45c09454d22
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SHA1
bdf07d339f21217ae5acfcce83bcc04ac1037134
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SHA256
e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec
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SHA512
2b58af8a8b1ed2328c100dc9f7665e26c08c3b586079f736255003f3a1a503d6ba97a4040168c5da4d6998d0d2ed81735b74d73958e9baeef361d97559c701fa
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SSDEEP
6144:1rQHIw0YRt+1SHkekkngPBJW8e1mhNax:1QP+2nfC0x
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1285972781925798132/nBZqbxL73TFbSYajVgbmW6KAjmyusRbWfByPMvZHMnjHAVPOWVCXCxCsfk91nafH1Gby
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 svchost.exe
Files
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svchost.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: 232KB - Virtual size: 231KB
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