Behavioral task
behavioral1
Sample
Loader.exe
Resource
win7-20240221-en
General
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Target
Loader.exe
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Size
229KB
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MD5
7d3ec891ac80ae5fbbf0366e5b4ea702
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SHA1
344763c3be81c43ee0e0e0022242b550b5e1a0b3
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SHA256
843af731d37eb2dcf935d99b426f6aa4068f6e53707dc5ed82bc40670e9f59a4
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SHA512
c07ad66d8ac875fa4e13f4c826963271bd6b5e090e44f371ae5bdb05e454c733a1286679dc9ce2151790de8ad0916040f402a6eff9709052878ea3dbc6aa9375
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SSDEEP
6144:lloZM+rIkd8g+EtXHkv/iD4zHUkecjfUh1gevPeOsb8e1mSi:noZtL+EP8zHUkecjfUh1gevPe7I
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1217908956421296159/QL_E2h-Ho6K9vJ84hJDghVrXrevAyJYLRPmmJ7pczaKgxaDYIjIvcjULTMeezEwkUgkd
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 Loader.exe
Files
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Loader.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