General
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Target
Test.exe
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Size
494KB
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MD5
d91cf2ea58f9f71046b8f55eb7032640
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SHA1
649d5eff015dd35f3c29193bf2c4d86a9ad2517b
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SHA256
e620d6139593cb75beef54843dfca504b864f03a112bb1ece037ea2779a08452
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SHA512
518904cbeb378f122becc870f164643c2f0849f659b538462666158c0b0a151a5cd5f11213b84cdde3377d23d3f5275304cb7c47e408c18766749d00e31b8a9a
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SSDEEP
12288:loZ0L+EP8xx7vKInDAmZMK7bCP/dDhA/Nfg:gI837vKInDAmZMK7bCPVlA/Nfg
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1257273081182031882/S0f5S9J9F-zbhHDQlGlLhI6bgnP5WbUyKC9IXiZfUV5WJ7V1L7zhio2udcHS4IhuFInt
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 Test.exe
Files
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Test.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: 266KB - Virtual size: 265KB
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