SetDefaultBrowser[.]exe

Sharing

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General

Target

SetDefaultBrowser.exe
Size

63KB
MD5

4adc091f25781329cae1ad8fdf94edd7
SHA1

1e320c17588c9337cc6220b94dc7616d5dd470f6
SHA256

21f1e8de0e8faf5eb5505cfef3cc0f14ee3eab7c3442ab0bb1d1a3e2e3988022
SHA512

4024ff3aff350acbf1839e109eec9c03636dc935503402d3f62932f3b9afe7cd1236f59fbb21c4b83b3aa8c6a160afc48661749d6de99eadd8db5c7b4361b887
SSDEEP

768:E+cThprvtHinCFa7gLu6JSBCD8Lk0pXi5W7ddEt7+81y50l6+ZungT8ZrElIE8f4:pcTnpir7L6JSBvLRXcTtC8vufwEEB

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
SetDefaultBrowser.exe

Files

SetDefaultBrowser.exe
.exe windows:4 windows x86

7a4e9e687d9c77ecc64c95e9852017bb

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED

Imports

advapi32

CheckTokenMembership
ConvertSidToStringSidW
GetTokenInformation
LookupAccountNameW
LookupAccountSidW
OpenProcessToken
RegCloseKey
RegCreateKeyExW
RegDeleteKeyW
RegEnumKeyExW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
RegSetValueExW

kernel32

CloseHandle
DeleteCriticalSection
EnterCriticalSection
FileTimeToSystemTime
GetCommandLineW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetLastError
GetModuleHandleA
GetProcAddress
GetStartupInfoA
GetSystemTimeAsFileTime
GetTickCount
InitializeCriticalSection
LeaveCriticalSection
LocalAlloc
LocalFree
OpenProcess
QueryPerformanceCounter
SetUnhandledExceptionFilter
Sleep
SystemTimeToFileTime
TerminateProcess
TlsGetValue
UnhandledExceptionFilter
VirtualProtect
VirtualQuery

msvcrt

__dllonexit
__getmainargs
__initenv
__lconv_init
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_cexit
_fmode
_initterm
_iob
_lock
_onexit
_wcslwr_s
calloc
exit
fprintf
free
fwrite
malloc
mbstowcs
memcpy
memset
signal
strlen
strncmp
_unlock
_waccess
_wcsicmp
_wcsnicmp
_wtoi
abort
swprintf_s
vfprintf
wcscmp
wcscpy
wcslen
wcsstr
wcstok
wprintf_s

shell32

CommandLineToArgvW
SHChangeNotify

Sections

.text
Size: 15KB - Virtual size: 15KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 48B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 2KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 52B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 32B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 35KB - Virtual size: 34KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

7a4e9e687d9c77ecc64c95e9852017bb

Headers

File Characteristics

Imports

advapi32

kernel32

msvcrt

shell32

Sections

.text Size: 15KB - Virtual size: 15KB

.data Size: 512B - Virtual size: 48B

.rdata Size: 8KB - Virtual size: 7KB

.bss Size: - Virtual size: 2KB

.idata Size: 2KB - Virtual size: 2KB

.CRT Size: 512B - Virtual size: 52B

.tls Size: 512B - Virtual size: 32B

.rsrc Size: 35KB - Virtual size: 34KB

.text
Size: 15KB - Virtual size: 15KB

.data
Size: 512B - Virtual size: 48B

.rdata
Size: 8KB - Virtual size: 7KB

.bss
Size: - Virtual size: 2KB

.idata
Size: 2KB - Virtual size: 2KB

.CRT
Size: 512B - Virtual size: 52B

.tls
Size: 512B - Virtual size: 32B

.rsrc
Size: 35KB - Virtual size: 34KB