General
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Target
Extra Tools.exe
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Size
229KB
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MD5
3c2c70c560f64045b7c66fbac464b29b
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SHA1
7cdf703727af950f6bd076976eaf24390cd54576
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SHA256
14a319c1e5ca25ec4a9ecabe6d2b9ec3bf28800619df5fb86713ece31c72fbc7
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SHA512
a5e7af2bd511189aa2303e38e939dd7dc003b07e6b96e997a76a1991b1993cbe436df619c3a175dafdb0dd8194df97b3b87a50f3b07e0302bd23c55394514fa9
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SSDEEP
6144:lloZMArIkd8g+EtXHkv/iD4PtbPfVeGJrMFXSy3oob8e1m0i:noZHL+EP8PtbPfVeGJrMFXSy3RS
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1278888374077358090/OVbbgejyA0uKR8y9k9myDSmhUYJqPDJpgHhtIFuc2VBtxCvwqx0wLF4KJqOxy9eoZsu0
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 Extra Tools.exe
Files
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Extra Tools.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