General
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Target
Umbral.exe
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Size
227KB
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MD5
9e70acec774a954dfdec2a6d2adab0b4
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SHA1
ebe3232cc9a0611376f7e796460911774dfb089e
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SHA256
ad84df32833b10a734cdf965b263b37780fada8aa938c5681357b0a5c73846cf
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SHA512
10cc5b005e59562075e413d29ff5dd42de4299ca7cf693abfff7c4b67fbf69c2a0b5db863aec09ad261b639b01745425daaa839a0d2babcf760aa71f10df1160
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SSDEEP
6144:+loZM+rIkd8g+EtXHkv/iD44VraXN2eRxENfKK/J8b8e1mhi:ooZtL+EP84VraXN2eRxENfKK/S3
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1276973906074406912/9nh3US1ao512h120QJ-Gj2r-dOXfSsoMAAr6Tiux05Bxi13QSeIe_N9AV_yFb9lmgwCP
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 Umbral.exe
Files
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Umbral.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: 224KB - Virtual size: 224KB
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