AMSilence[.]exe

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General

Target

AMSilence.exe
Size

374KB
MD5

b0748daf4fda8078cfecd2e9f266f759
SHA1

7f67c832e66439abc722270a8d760eba3fb98d11
SHA256

755d2ea4e24f4e8667b0c1aec039cfe19abcf31fc9a00bd6ac74169c3703c3a0
SHA512

f7ec81a1245d0d6e5270e2c3713126016e382660c38de4cadd2c8a85543e607c4f1f03df2c3fef8775584bbf196441f432ef125c17ba957700725ce1c872df8a
SSDEEP

6144:HQcEHnh/1nMsAFEQ5Q/8WWEmRnP0pm4tO+rBey+DnP/TVsY0URqk4s+IVRa:HfWnh/1nTl/ODZ4txrBUDRsOst

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
AMSilence.exe

Files

AMSilence.exe
.exe windows:6 windows x64 arch:x64

7ddb19e7e2c14cf4b86c68dcdeb49536

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

AMSilence.pdb

Imports

bcryptprimitives

ProcessPrng

api-ms-win-core-synch-l1-2-0

WakeByAddressSingle
WaitOnAddress
WakeByAddressAll

kernel32

CreateNamedPipeW
SetThreadStackGuarantee
GetCurrentThread
WriteFileEx
SleepEx
ReadFileEx
WaitForMultipleObjects
GetOverlappedResult
DeleteProcThreadAttributeList
CreateEventW
CancelIo
ReadFile
HeapAlloc
GetProcessHeap
GetCurrentDirectoryW
RtlCaptureContext
RtlLookupFunctionEntry
WaitForSingleObjectEx
LoadLibraryA
CreateMutexA
ReleaseMutex
RtlVirtualUnwind
WideCharToMultiByte
LoadLibraryExA
UpdateProcThreadAttribute
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
QueryPerformanceCounter
InitializeProcThreadAttributeList
CreateThread
DuplicateHandle
GetFileAttributesW
CreateProcessW
GetWindowsDirectoryW
GetSystemDirectoryW
CompareStringOrdinal
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetFileInformationByHandleEx
GetFileInformationByHandle
GetFullPathNameW
IsDebuggerPresent
SetFileInformationByHandle
CreateFileW
GetEnvironmentVariableW
lstrlenW
FormatMessageW
SetLastError
GetProcAddress
WriteConsoleW
MultiByteToWideChar
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetConsoleMode
GetStdHandle
HeapReAlloc
FindNextFileW
WaitForSingleObject
ResumeThread
GetModuleHandleW
Module32NextW
Module32FirstW
CreateToolhelp32Snapshot
GetModuleFileNameW
GetCurrentProcess
FindClose
FindFirstFileW
GetModuleHandleA
OutputDebugStringW
GetLastError
CloseHandle
HeapFree
GetCurrentProcessId
GetExitCodeProcess
IsProcessorFeaturePresent

oleaut32

SysStringLen
GetErrorInfo
SysFreeString

advapi32

OpenProcessToken
AdjustTokenPrivileges
LookupPrivilegeValueA
SystemFunction036

bcrypt

BCryptGenRandom

ntdll

NtWriteFile
RtlNtStatusToDosError
NtReadFile

api-ms-win-core-winrt-error-l1-1-0

RoOriginateErrorW

vcruntime140

__CxxFrameHandler3
__current_exception_context
__current_exception
__C_specific_handler
memmove
memcpy
memset
memcmp

api-ms-win-crt-string-l1-1-0

strlen

api-ms-win-crt-runtime-l1-1-0

__p___argc
_c_exit
_exit
exit
_initterm_e
_initterm
_get_initial_narrow_environment
_initialize_narrow_environment
_configure_narrow_argv
__p___argv
_set_app_type
_seh_filter_exe
_register_thread_local_exe_atexit_callback
_cexit
_register_onexit_function
_crt_atexit
terminate
_initialize_onexit_table

api-ms-win-crt-math-l1-1-0

__setusermatherr

api-ms-win-crt-stdio-l1-1-0

_set_fmode
__p__commode

api-ms-win-crt-locale-l1-1-0

_configthreadlocale

api-ms-win-crt-heap-l1-1-0

_set_new_mode
free

Sections

.text
Size: 296KB - Virtual size: 296KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 67KB - Virtual size: 67KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 600B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 7KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7ddb19e7e2c14cf4b86c68dcdeb49536

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

bcryptprimitives

api-ms-win-core-synch-l1-2-0

kernel32

oleaut32

advapi32

bcrypt

ntdll

api-ms-win-core-winrt-error-l1-1-0

vcruntime140

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-heap-l1-1-0

Sections

.text Size: 296KB - Virtual size: 296KB

.rdata Size: 67KB - Virtual size: 67KB

.data Size: 512B - Virtual size: 600B

.pdata Size: 7KB - Virtual size: 7KB

.reloc Size: 1KB - Virtual size: 1KB

.text
Size: 296KB - Virtual size: 296KB

.rdata
Size: 67KB - Virtual size: 67KB

.data
Size: 512B - Virtual size: 600B

.pdata
Size: 7KB - Virtual size: 7KB

.reloc
Size: 1KB - Virtual size: 1KB