Behavioral task
behavioral1
Sample
windows_update.exe
Resource
win7-20240704-en
General
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Target
windows_update.exe
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Size
108KB
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MD5
a6ea9e37bd47303cac85f331e64838a8
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SHA1
a265b9cfbcef84980e2d2e1d11cd7b1097396297
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SHA256
929bd3290253659ed89c3331eb1792fd8b6dee75b0872e485bbcc4cf417566bc
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SHA512
a7615b9d24065132cf467386fed3ff273da2e6af71a48e150b0dca4437c2ed0eb9693fff51ae33f3dee1f195e15311469063527f779135f54ab07573b040c52d
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SSDEEP
1536:mmiY0ryGXrOvCRq0wj4RcIVIbEAvYaueXe:mmiY0jKT02bEA51e
Malware Config
Extracted
xenorat
192.168.30.131
Microsoft Inc
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delay
5000
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install_path
temp
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port
9099
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startup_name
nothingset
Signatures
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Xenorat family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource windows_update.exe
Files
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windows_update.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
Imports
mscoree
_CorExeMain
Sections
.text Size: 39KB - Virtual size: 38KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 68KB - Virtual size: 67KB
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