Behavioral task
behavioral1
Sample
klounada.exe
Resource
win7-20240220-en
General
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Target
klounada.exe
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Size
5.5MB
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MD5
616756248d85c819fd0830d660a7aaa0
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SHA1
0ead8b67e103d9ec95486781c70c2b35aa9ee287
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SHA256
1e2f5b51b09d3f0060700403f138e33cf4c085dde4fbb469c420e9fd840f04d3
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SHA512
b50326bcdc988e947df2c01552266aeea6bd148832496b4c29328f8751268c9840f72433019ee94925151913aad77020e146567cc0cffc5ffe65905f3070b406
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SSDEEP
98304:g2GmrHOupd2UnxrkWKnuIGQi0iEFZTbKEH/Zh9lkdKnZ7QOjXIEgTH:a1UxrxWuYFFhDYKnOObIEgT
Malware Config
Signatures
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resource yara_rule sample vmprotect -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource klounada.exe
Files
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klounada.exe.exe windows:6 windows x86 arch:x86
89c8abd38fd3ffc06ee06d01f9b3cbbf
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
ExitProcess
VirtualQuery
LocalAlloc
LocalFree
GetModuleFileNameW
GetProcessAffinityMask
SetProcessAffinityMask
SetThreadAffinityMask
Sleep
ExitProcess
FreeLibrary
LoadLibraryA
GetModuleHandleA
GetProcAddress
ole32
CoCreateInstance
oleaut32
SysAllocString
user32
CloseClipboard
GetProcessWindowStation
GetProcessWindowStation
GetUserObjectInformationW
gdi32
BitBlt
wtsapi32
WTSSendMessageW
Sections
.text Size: - Virtual size: 218KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: - Virtual size: 42KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.vmp0 Size: - Virtual size: 3.2MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.vmp1 Size: 5.5MB - Virtual size: 5.5MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ