nrush[.]exe | Triage

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General

Target

nrush.exe
Size

12.7MB
MD5

dd7ac9ad8932ee438238618cbc44cf6a
SHA1

4db631ae0665456f00b22d807a3b5ced033eb0dd
SHA256

4549177b585991b78c076be81fac70f1272e2c86df636fb738ec0cda9a5d15d3
SHA512

589bf004d351bde3497a9cf07c8ddfa6cb04ee08a6ac73fe428e2b6f45eca37edc6f35a3cd9234c4162e37ac9c8a1ec60b3faa4d8605085d7e0d3cc5617afb61
SSDEEP

196608:NkBgacunOdIQ8WD/GcqIer+/ApLXJS9RJKu:NtunOdIQ8WTGW+fJS9Rv

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
nrush.exe

Files

nrush.exe
.exe windows:4 windows x86 arch:x86

3126a8aa7159501d1646cf29fe0b6b30

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Imports

advapi32

CryptAcquireContextW
CryptDestroyKey
CryptImportKey
CryptReleaseContext
OpenProcessToken
RegCloseKey
RegEnumKeyExW
RegEnumValueW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
SystemFunction036

bcrypt

BCryptGenRandom

crypt32

CertAddCertificateContextToStore
CertAddEncodedCTLToStore
CertAddEncodedCertificateToStore
CertCloseStore
CertCreateCTLEntryFromCertificateContextProperties
CertCreateCertificateContext
CertDeleteCertificateFromStore
CertDuplicateCertificateChain
CertDuplicateCertificateContext
CertDuplicateStore
CertEnumCertificatesInStore
CertFreeCTLContext
CertFreeCertificateChain
CertFreeCertificateContext
CertGetCertificateChain
CertGetCertificateContextProperty
CertGetEnhancedKeyUsage
CertOpenStore
CertSetCertificateContextProperty
CertVerifyCertificateChainPolicy
CertVerifyTimeValidity
CryptAcquireCertificatePrivateKey
CryptBinaryToStringA
CryptDecodeObjectEx
CryptEncodeObjectEx
CryptHashCertificate
CryptMsgEncodeAndSignCTL
CryptStringToBinaryA
PFXExportCertStore
PFXImportCertStore

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
AddVectoredExceptionHandler
CancelIo
CancelIoEx
CloseHandle
CompareStringOrdinal
ConnectNamedPipe
CopyFileExW
CreateConsoleScreenBuffer
CreateDirectoryW
CreateEventW
CreateFileMappingA
CreateFileW
CreateHardLinkW
CreateIoCompletionPort
CreateMutexA
CreateNamedPipeW
CreateProcessW
CreateSemaphoreW
CreateSymbolicLinkW
CreateThread
CreateToolhelp32Snapshot
DeleteFileW
DeleteProcThreadAttributeList
DeviceIoControl
DisconnectNamedPipe
DuplicateHandle
ExitProcess
FileTimeToSystemTime
FillConsoleOutputAttribute
FillConsoleOutputCharacterA
FindClose
FindFirstFileW
FindNextFileW
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
GetCommandLineW
GetConsoleCursorInfo
GetConsoleMode
GetConsoleScreenBufferInfo
GetCurrentConsoleFont
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesW
GetFileInformationByHandle
GetFileInformationByHandleEx
GetFileType
GetFinalPathNameByHandleW
GetFullPathNameW
GetLargestConsoleWindowSize
GetLastError
GetLogicalProcessorInformation
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleW
GetNamedPipeInfo
GetNumberOfConsoleInputEvents
GetOverlappedResult
GetProcAddress
GetProcessHeap
GetProcessId
GetQueuedCompletionStatusEx
GetStartupInfoA
GetStdHandle
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetWindowsDirectoryW
HeapAlloc
HeapFree
HeapReAlloc
InitOnceBeginInitialize
InitOnceComplete
InitializeProcThreadAttributeList
LoadLibraryA
LocalFree
MapViewOfFile
Module32FirstW
Module32NextW
MoveFileExW
MultiByteToWideChar
PostQueuedCompletionStatus
QueryPerformanceCounter
QueryPerformanceFrequency
ReOpenFile
ReadConsoleInputW
ReadConsoleW
ReadFile
ReadFileEx
RegisterWaitForSingleObject
ReleaseMutex
ReleaseSRWLockExclusive
ReleaseSRWLockShared
ReleaseSemaphore
RemoveDirectoryW
SetConsoleActiveScreenBuffer
SetConsoleCtrlHandler
SetConsoleCursorInfo
SetConsoleCursorPosition
SetConsoleMode
SetConsoleScreenBufferSize
SetConsoleTextAttribute
SetConsoleWindowInfo
SetCurrentDirectoryW
SetEnvironmentVariableW
SetFileAttributesW
SetFileCompletionNotificationModes
SetFileInformationByHandle
SetFilePointerEx
SetFileTime
SetHandleInformation
SetLastError
SetThreadStackGuarantee
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
SleepEx
SwitchToThread
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
TryAcquireSRWLockShared
UnmapViewOfFile
UnregisterWaitEx
UpdateProcThreadAttribute
WaitForMultipleObjects
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
WriteFileEx
DeleteCriticalSection
EnterCriticalSection
InitializeCriticalSection
LeaveCriticalSection
VirtualProtect
VirtualQuery

ncrypt

NCryptFreeObject

secur32

AcceptSecurityContext
AcquireCredentialsHandleA
ApplyControlToken
DecryptMessage
DeleteSecurityContext
EncryptMessage
FreeContextBuffer
FreeCredentialsHandle
InitializeSecurityContextW
QueryContextAttributesW

userenv

GetUserProfileDirectoryW

ws2_32

WSACleanup
WSADuplicateSocketW
WSAGetLastError
WSAIoctl
WSAPoll
WSARecv
WSARecvFrom
WSASend
WSASendMsg
WSASendTo
WSASocketW
WSAStartup
accept
bind
closesocket
connect
freeaddrinfo
getaddrinfo
getpeername
getsockname
getsockopt
ioctlsocket
listen
recv
recvfrom
select
send
sendto
setsockopt
shutdown
socket

msvcrt

__getmainargs
__initenv
__lconv_init
__p__acmdln
__p__commode
__p__fmode
__set_app_type
__setusermatherr
_amsg_exit
_cexit
_errno
_commode
_fmode
_fpreset
_initterm
_iob
_onexit
abort
calloc
ceil
exit
fprintf
free
fwrite
malloc
memcmp
memcpy
memmove
memset
pow
signal
strlen
strncmp
vfprintf

ntdll

NtCancelIoFileEx
NtCreateFile
NtDeviceIoControlFile
NtReadFile
NtWriteFile
RtlCaptureContext
RtlNtStatusToDosError

Sections

.text
Size: 3.8MB - Virtual size: 3.8MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 10KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 902KB - Virtual size: 901KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

/4
Size: 822KB - Virtual size: 821KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 732B

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 60B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 8B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 172KB - Virtual size: 171KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/14
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/29
Size: 614KB - Virtual size: 614KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/45
Size: 991KB - Virtual size: 991KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/57
Size: 13KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/71
Size: 426KB - Virtual size: 426KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/83
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/96
Size: 1.4MB - Virtual size: 1.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/107
Size: 8KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/118
Size: 512B - Virtual size: 198B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

/134
Size: 330KB - Virtual size: 329KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

3126a8aa7159501d1646cf29fe0b6b30

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

bcrypt

crypt32

kernel32

ncrypt

secur32

userenv

ws2_32

msvcrt

ntdll

Sections

.text Size: 3.8MB - Virtual size: 3.8MB

.data Size: 10KB - Virtual size: 9KB

.rdata Size: 902KB - Virtual size: 901KB

/4 Size: 822KB - Virtual size: 821KB

.bss Size: - Virtual size: 732B

.idata Size: 9KB - Virtual size: 9KB

.CRT Size: 512B - Virtual size: 60B

.tls Size: 512B - Virtual size: 8B

.reloc Size: 172KB - Virtual size: 171KB

/14 Size: 1KB - Virtual size: 1KB

/29 Size: 614KB - Virtual size: 614KB

/45 Size: 991KB - Virtual size: 991KB

/57 Size: 13KB - Virtual size: 13KB

/71 Size: 426KB - Virtual size: 426KB

/83 Size: 2KB - Virtual size: 1KB

/96 Size: 1.4MB - Virtual size: 1.4MB

/107 Size: 8KB - Virtual size: 8KB

/118 Size: 512B - Virtual size: 198B

/134 Size: 330KB - Virtual size: 329KB

.text
Size: 3.8MB - Virtual size: 3.8MB

.data
Size: 10KB - Virtual size: 9KB

.rdata
Size: 902KB - Virtual size: 901KB

/4
Size: 822KB - Virtual size: 821KB

.bss
Size: - Virtual size: 732B

.idata
Size: 9KB - Virtual size: 9KB

.CRT
Size: 512B - Virtual size: 60B

.tls
Size: 512B - Virtual size: 8B

.reloc
Size: 172KB - Virtual size: 171KB

/14
Size: 1KB - Virtual size: 1KB

/29
Size: 614KB - Virtual size: 614KB

/45
Size: 991KB - Virtual size: 991KB

/57
Size: 13KB - Virtual size: 13KB

/71
Size: 426KB - Virtual size: 426KB

/83
Size: 2KB - Virtual size: 1KB

/96
Size: 1.4MB - Virtual size: 1.4MB

/107
Size: 8KB - Virtual size: 8KB

/118
Size: 512B - Virtual size: 198B

/134
Size: 330KB - Virtual size: 329KB