General
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Target
SolaraB.exe
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Size
229KB
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MD5
48baa0394f0e53ec2e19d99a3b98a400
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SHA1
723638a8779f3ed8d195fdc1af92bd2036ec1ca6
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SHA256
186b386185fc93d31a827f9a711ceb0134e85cd91acf0d8b622b891bda751e79
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SHA512
eeab39f6d51059f79d0372cd0b1c2197ac08f53a94068b070a63c28344a92e8d4f521e6b0f0a172e950fcbd17c22a707a7d0cbad3209669b868822651b023c53
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SSDEEP
6144:lloZM+rIkd8g+EtXHkv/iD4G//Hdtxd38e1m+Ji:noZtL+EP8ovnxZe
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1261975574994358322/t7Wb9RVyFWem2P4CyLnAxqjaasqdLq2_609gWzc5jJtyvXqVdwYJFdYrwDHN2wbAvuFH
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 SolaraB.exe
Files
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SolaraB.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: 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