General
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Target
KatanaBeta.exe
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Size
229KB
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MD5
f6f744441dfded289e9f80124b42cd7b
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SHA1
e097b009936023a9f7672bc1fb956ad45a07e9ad
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SHA256
a6691d55b146c79be7721277050c0f6c11130fa826cda7d78a4d529afefe3221
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SHA512
4cfec12b594cad710954dc25dee05b185c4917640d6ccd3778487a40ee73b0d08bc7cdd8787b2a9d331783d3de9d52535f8ed73b82a2de22331e4b81b49b1e6d
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SSDEEP
6144:FloZM3fsXtioRkts/cnnK6cMl8Eru0ad1+t7mEl5Q77b8e1mCSni:HoZ1tlRk83Ml8Eru0ad1+t7mEl5QTQi
Malware Config
Extracted
umbral
https://discordapp.com/api/webhooks/1267710453140951191/IIRxpE0xbpWEQdtzIur3qQkpJXN_Y7Z0eY8h8JOoQYGP2oBxcIKX2ZtY3K4AB1WZ5D5d
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 KatanaBeta.exe
Files
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KatanaBeta.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