Behavioral task
behavioral1
Sample
injector.exe
Resource
win7-20240220-en
General
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Target
injector.exe
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Size
230KB
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MD5
289b67e48da10ab68939056c3cd8bb2b
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SHA1
2b4665f3f61098c4ceec9208a01e75ac7e4b1d3d
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SHA256
545757791f0b6759a9da98687651c1ad9f32f86d8f3e7f5d163d2ebba8f4bc3e
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SHA512
c2c63302ebfc08c2be9e56174c2adc0b78a155d8d4954fc96532e37c459477cf896f3ab1ff60df181cd541c6cefffcd67f707ef07bde8b1474b6c3131034ff5c
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SSDEEP
6144:dloZM9rIkd8g+EtXHkv/iD4otP77Byal4gRj++7okb8e1mCi:/oZOL+EP8otP77Byal4gRj++7x4
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1213008738932232222/Fdyg2BL1XMNPuUH00U4Sz4tSsB28zPHmo5LM1ZgI0khZUCgO6V8OCwLstumSvpdROu7V
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 injector.exe
Files
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injector.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: 227KB
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