ransom[.]exe | Triage

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General

Target

ransom.exe
Size

3.1MB
MD5

2aa41f26fcabb7793a4dd832b356d9dc
SHA1

fdb1c4c1f191c3e32db9fdde883b481273a9e6f7
SHA256

44599d7e726e5fdb4b704369bfe607fea6d787bbd9dd20a07286becd6a0ef8a8
SHA512

39369b69f290f224008b9035b6d1f8ba3b2756092a2b2794c3bb8744c39f1f2ceb75a297c3b2017213c4b63fd44a17575b5fb6f16cde3274fcbe2b63ec535433
SSDEEP

49152:px7qjVDcXminWv1UpYq+NnzBb8bt5DNwqbYb4XU:r73pwqsb4X

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
ransom.exe

Files

ransom.exe
.exe windows:6 windows x64 arch:x64

43d69fff887b3400843c58908448abbd

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

ransom.pdb

Imports

bcryptprimitives

ProcessPrng

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

WaitOnAddress
WakeByAddressAll
WakeByAddressSingle

advapi32

SystemFunction036
RegCreateKeyExW
RegSetValueExW
RegCloseKey
RegQueryValueExW
RegOpenKeyExW

kernel32

InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
IsProcessorFeaturePresent
IsDebuggerPresent
CloseHandle
lstrlenW
GetCurrentProcess
DuplicateHandle
SetHandleInformation
CreateIoCompletionPort
GetQueuedCompletionStatusEx
PostQueuedCompletionStatus
ReadFile
GetOverlappedResult
SetFileCompletionNotificationModes
Sleep
GetModuleHandleA
GetProcAddress
GetFileInformationByHandle
GetConsoleMode
FreeEnvironmentStringsW
DeleteProcThreadAttributeList
CompareStringOrdinal
GetLastError
AddVectoredExceptionHandler
SetThreadStackGuarantee
GetCurrentThread
SwitchToThread
WaitForSingleObject
QueryPerformanceCounter
GetSystemInfo
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
SetLastError
GetCurrentDirectoryW
GetEnvironmentStringsW
GetEnvironmentVariableW
SetFileInformationByHandle
SetFilePointerEx
GetStdHandle
GetCurrentProcessId
WriteFileEx
SleepEx
GetExitCodeProcess
QueryPerformanceFrequency
HeapFree
HeapReAlloc
ReleaseMutex
GetProcessHeap
HeapAlloc
FindNextFileW
FindClose
CreateFileW
GetFileInformationByHandleEx
FindFirstFileW
DeleteFileW
GetFinalPathNameByHandleW
CreateEventW
CancelIo
GetModuleHandleW
FormatMessageW
GetModuleFileNameW
CreateNamedPipeW
ReadFileEx
WaitForMultipleObjects
GetSystemDirectoryW
GetWindowsDirectoryW
CreateProcessW
GetFileAttributesW
InitializeProcThreadAttributeList
UpdateProcThreadAttribute
MultiByteToWideChar
WriteConsoleW
WideCharToMultiByte
CreateThread
GetFullPathNameW
GetTempPathW
WaitForSingleObjectEx
LoadLibraryA
CreateMutexA
UnhandledExceptionFilter
SetUnhandledExceptionFilter

ole32

CoTaskMemFree

shell32

SHGetKnownFolderPath

ws2_32

WSASocketW
getsockname
connect
ioctlsocket
bind
recv
getaddrinfo
freeaddrinfo
getpeername
WSACleanup
WSAStartup
getsockopt
WSAGetLastError
WSAIoctl
setsockopt
WSASend
closesocket
send
shutdown

secur32

ApplyControlToken
EncryptMessage
AcceptSecurityContext
AcquireCredentialsHandleA
QueryContextAttributesW
DeleteSecurityContext
FreeCredentialsHandle
DecryptMessage
FreeContextBuffer
InitializeSecurityContextW

crypt32

CertFreeCertificateChain
CertDuplicateCertificateChain
CertGetCertificateChain
CertVerifyCertificateChainPolicy
CertEnumCertificatesInStore
CertFreeCertificateContext
CertAddCertificateContextToStore
CertDuplicateCertificateContext
CertOpenStore
CertCloseStore
CertDuplicateStore

ntdll

NtCreateFile
NtDeviceIoControlFile
RtlNtStatusToDosError
NtCancelIoFileEx
NtWriteFile
NtReadFile

bcrypt

BCryptGenRandom

vcruntime140

__current_exception
__CxxFrameHandler3
__current_exception_context
__C_specific_handler
_CxxThrowException
memset
memcpy
memmove
memcmp

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

__setusermatherr
pow

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

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

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

__p__commode
_set_fmode

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

_configthreadlocale

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

free
_set_new_mode

Sections

.text
Size: 1.9MB - Virtual size: 1.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.0MB - Virtual size: 1.0MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 116KB - Virtual size: 116KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 18KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

43d69fff887b3400843c58908448abbd

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

bcryptprimitives

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

advapi32

kernel32

ole32

shell32

ws2_32

secur32

crypt32

ntdll

bcrypt

vcruntime140

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

api-ms-win-crt-runtime-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: 1.9MB - Virtual size: 1.9MB

.rdata Size: 1.0MB - Virtual size: 1.0MB

.data Size: 12KB - Virtual size: 12KB

.pdata Size: 116KB - Virtual size: 116KB

.reloc Size: 18KB - Virtual size: 17KB

.text
Size: 1.9MB - Virtual size: 1.9MB

.rdata
Size: 1.0MB - Virtual size: 1.0MB

.data
Size: 12KB - Virtual size: 12KB

.pdata
Size: 116KB - Virtual size: 116KB

.reloc
Size: 18KB - Virtual size: 17KB