Behavioral task
behavioral1
Sample
Umbral.exe
Resource
win7-20240215-en
General
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Target
Umbral.exe
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Size
243KB
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MD5
7c28489ab3d43ced3c78f673e298e07c
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SHA1
ae11b318d173b3f4a214c46d07b1301dc87fd30c
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SHA256
2f25085b9c09c476013e70d58036ba70dc72815c5222be2018c4ef46a81222e1
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SHA512
dd6dbba78ebcaefc2c7efb2dc28752f30aa5a604a7447ce2232f7b73bdc070782b2744ebd0a7f044414ac8a91e30cbde5c131af6647c1d45584a07fac9bf538e
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SSDEEP
6144:ploZM8XU9Zx0kt8X0/PSCsMSl8kqNlOiLWU1pA1AoK28e1mpl48miP4fF:boZof0kkP/l8kqNlOiLWU1pABUl4KPKF
Malware Config
Extracted
umbral
https://canary.discord.com/api/webhooks/1222893043523256413/kVdC6xi0d19_VgXsX0E6ouVZvJbnDBAdeDW-QWqcfdFGP4uvsZwKvhisOiPIseTSw6CN
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: 227KB - Virtual size: 226KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 15KB - Virtual size: 15KB
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