Behavioral task
behavioral1
Sample
test.exe
Resource
win7-20240705-en
General
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Target
test.exe
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Size
228KB
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MD5
25494c4b3d82bc8293c3a9bbb842422f
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SHA1
7a5824703d9842147cf3143a753b69d84f5e828a
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SHA256
546a70ec426671547e36c2d520b55babdf18d746a818c4e03539fb82c322245d
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SHA512
c168c5250212d29b213fb5af9c22ecfc04027a02d30d427173f20ba2f2d28ae872a7f14f0584846fd208c95db0ba8ed476af4d9ca0e88eaf5cfa33fc95bab3eb
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SSDEEP
6144:cloZM3rIkd8g+EtXHkv/iD4TZU6+8D/0DVA+Pv+jzb8e1m8Pi:6oZAL+EP8TZU6+8D/0DVA+Pv+bXa
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1260630587853504552/ecwTTW2ppzBZfWB9jy6lHWUNX0GGXehRabP7eSoJCINqjUwEtteMIzp0MVhbrx_N2D7x
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 test.exe
Files
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test.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: 225KB - Virtual size: 225KB
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