Static task
static1
Behavioral task
behavioral1
Sample
WinUpdate.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
WinUpdate.exe
Resource
win10v2004-20230220-en
General
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Target
WinUpdate.exe
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Size
163KB
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MD5
635d87824f2efbbd129d8618f07ca1f1
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SHA1
f0faa9e9f98b5c975f9ce09b13e4f1d26a5ae683
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SHA256
ea04fbefb1f95db7971a5c442c8103296efab0255f78cf8006c223008da30441
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SHA512
78aa0146b7e73de4d12abb1be53ffc557cdd0c06519d847d2373cb1c43b77a444de884d74eaa6c2e8a44005a5ab1b1dd1462b292ab413d4300cd94d40bc3bc2a
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SSDEEP
1536:oUvI+Nn76jBwEMxqElw3+Nn76jBwEMxqElwjuTi5b+R+Z1dpreMXWioONn+6jBNN:oUBN7LN75i5b3ZDlMiBN+I
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource WinUpdate.exe
Files
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WinUpdate.exe.exe windows x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
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
Imports
mscoree
_CorExeMain
Sections
.text Size: 135KB - Virtual size: 135KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 27KB - Virtual size: 26KB
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