General
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Target
TEST.rar
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Size
80KB
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MD5
b73a235392b360b22f6b244b0b0af97a
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SHA1
524829a16a97ba862337b8ad7ec86707e231cfe9
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SHA256
c2caa0fa4a868c131c9139635dd57f67ec1bba9283ab4b0a121fdff5a4a21082
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SHA512
50122d08a5965c537ab7bf9bc8c5372ae48858459e47a652e04d98a3dc8c02f5664f759600e07b658de543696c0c06dbf0311d583168ae43427f67c057801c64
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SSDEEP
1536:5PJo3xi6Dpg60TuRW3mF50HuCvsfqSYh35wHGIDO8sGAYNQ7OPqyMHC96:5C3s6DpF0Kg3mFWdcqhwHGUO0qIn96
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1248680916088524882/scOLRb8Ed3pZrVLq-wxEU3RMvJbAjEVyHOhqKEPHD6NL1h3WeGeXo53UPUp5psuRr4DL
Signatures
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Detect Umbral payload 1 IoCs
resource yara_rule static1/unpack001/TEST.exe family_umbral -
Umbral family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/TEST.exe
Files
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TEST.rar.rar
Password: 1212
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TEST.exe.exe windows:4 windows x86 arch:x86
Password: 1212
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