General
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Target
Umbral.exe
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Size
231KB
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MD5
1386a2acc32c74bd6c5c7c0854ed0057
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SHA1
0c7fad651f261659e38a0d248ef293243cd44d2b
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SHA256
196836d6a8ec3b17bf20eef67adb66f5c811e547454f0a3593fcdf795db465cf
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SHA512
e84390078981e8d5404c854d066242df8fcb09fcdc9c6721e499a99758d63d34e94608910d7f99031c22bf5e2d2ddc21f3126819a38adec13393a2b5d766ced7
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SSDEEP
6144:RloZMrfsXtioRkts/cnnK6cMlpDtwt74szeKrd4UBbLxb8e1mii:joZBtlRk83MlpDtwt74szeKrd4UBJg
Malware Config
Extracted
umbral
https://discordapp.com/api/webhooks/1326328316617293955/AOLIaMz0BgLa75CCyacwmFl7K50FMOGavM9JwWVUZcUnQCQe479xRJcm06ce6tpzn_wv
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 Umbral.exe
Files
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Umbral.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: 228KB - Virtual size: 228KB
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