Static task
static1
Behavioral task
behavioral1
Sample
yonc127.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
yonc127.exe
Resource
win10v2004-20231215-en
General
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Target
73b2499d9bf7b0df2fcdf4d47639585e
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Size
953KB
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MD5
73b2499d9bf7b0df2fcdf4d47639585e
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SHA1
4cc3d0ecae9753019b4982861e847c5bfe1e7726
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SHA256
0560a002773051cbe81352bbc0a8bcce92bf4e3c8f92fa1f6af6c64ca8bc3bff
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SHA512
37586ea371cbf243fb974a1dbdc70e0d4afecd100116625dbbe00d79770d1976cd4739d3729aa8a01d95fc804ae1567bf558d7714e2a3febd7751f88aae1fa01
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SSDEEP
24576:BnWi3nCbW3r33gv2jJCl7e9QWSYuYBEoTfeVJ6RWWSN:t/3gW3rul7e9QYfBEoyORW3N
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/yonc127.exe
Files
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73b2499d9bf7b0df2fcdf4d47639585e.rar
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yonc127.exe.exe windows:4 windows x86 arch:x86
f5b3e8c79ff05dc89a05ee0b0be96a2e
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_AGGRESIVE_WS_TRIM
IMAGE_FILE_32BIT_MACHINE
Imports
comctl32
ord17
kernel32
CloseHandle
SetFilePointer
lstrlenA
VirtualAlloc
CreateFileA
FormatMessageA
ExitProcess
GetStartupInfoA
GetCommandLineA
lstrcpyA
lstrcmpA
GetLastError
lstrcatA
GetSystemDirectoryA
GetTempPathA
GetModuleHandleA
GetFileAttributesA
CreateDirectoryA
GetFullPathNameA
WaitForSingleObject
CreateThread
Sleep
CreateProcessA
SetCurrentDirectoryA
DeleteFileA
RemoveDirectoryA
SetFileTime
VirtualFree
DosDateTimeToFileTime
WriteFile
GetPrivateProfileStringA
GetPrivateProfileIntA
GetTempFileNameA
GetModuleFileNameA
GetCurrentProcess
ReadFile
GetCurrentDirectoryA
ExpandEnvironmentStringsA
LocalFileTimeToFileTime
user32
GetDlgItem
SetWindowTextA
SetDlgItemTextA
wsprintfA
MessageBoxA
DestroyWindow
SendMessageA
EndDialog
DialogBoxParamA
PostMessageA
ShowWindow
advapi32
RegQueryValueExA
RegOpenKeyExA
RegCloseKey
msvcrt
strlen
Sections
.text Size: 17KB - Virtual size: 16KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 3KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 6KB - Virtual size: 23KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 8KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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