General
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Target
MVPLoader.exe
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Size
296KB
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MD5
a003b413af774f804d4636f1c548432d
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SHA1
1278d0575f8f693f525b0c9382b9eb6c5a01f1f7
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SHA256
701bcfb85c1c91cba00d1ab6642071739621b886e79255d874dd0def2adbe6b6
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SHA512
9abbc1dae91f85e8565905cb78e7266e7dfa1a6c98e3c80dd2ad9e6d6fd955bd28b7b908c802c74a8e6960b98e85c4d040aa7e01adc0babb841634c339db79d6
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SSDEEP
6144:9loZMCrIkd8g+EtXHkv/iD4uDwGPlO2Z0c1niinghb8e1mbietLjth6t0stcOtKc:foZZL+EP8uDwGPlO2Z0c1niingtK
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1320670806732443668/0UUFqtoA2NYbVd7AdArv9rqvm_ZtjizgTVjt1FN3pY9Y8uP9gOvvZAT-Am6P5vPKkoge
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 MVPLoader.exe
Files
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MVPLoader.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: 68KB - Virtual size: 67KB
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