General
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Target
KatanaFN.exe
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Size
229KB
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MD5
8c6c893c1be31f8bba39f50c79772e34
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SHA1
620d857c37fc74da24b5ed43ed6c1113482e086d
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SHA256
57953e9e139137ade941f8e70164fc8c06539927bcabdb3e5ee753e8375e6f6b
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SHA512
e6e4f12a8723799662ecbbfee529bde6f5e5cd3d49d851c7203c73f49c41c1133bdd3b5d19c82608b0df79b3c6cd3618dc5a41f4678128200c02188c8fd16e67
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SSDEEP
6144:FloZM3fsXtioRkts/cnnK6cMlTX7nmkrHMI9YW3X2Xws+lO8e1mUKAi:HoZ1tlRk83Ml77nmkrHMI9YW3X2Xee38
Malware Config
Extracted
umbral
https://discordapp.com/api/webhooks/1267691498871324722/hLJth30o7DcA9iZeXrsIXolI1RCj9Sq1z0BcBaYPamdjTS0fUENCCoxQXfZSZLLuoOOZ
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 KatanaFN.exe
Files
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KatanaFN.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