chkdsk[.]exe | Triage

General

Target

chkdsk.exe
Size

8.0MB
MD5

54e97acd08308d50009233eb4527a4c5
SHA1

97bb9cdda02fc22d737ea20ed99d77d00b92cc5c
SHA256

33d0fad1937c17ef1a7ef241497224ab603af12bc6fd56b320c9d7ab80294204
SHA512

be481f6a03df28d1b1ae51738587190529b82a8306143cacb776c54fc4f9198e911a379e75c31e68cf1d79b636a1bf2db656886df74e5fb65a129465ff121398
SSDEEP

98304:IMud3Ub2/xd73kVahu9UEDcZj8prUyMXs:IMuVUSpoRIRyMXs

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
chkdsk.exe

Files

chkdsk.exe
.exe windows:6 windows x64

9cbefe68f395e67356e2a5d8d1b285c0

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
IMAGE_FILE_DEBUG_STRIPPED

Imports

kernel32

WriteFile
WriteConsoleW
WaitForMultipleObjects
WaitForSingleObject
VirtualQuery
VirtualFree
VirtualAlloc
SwitchToThread
SuspendThread
SetWaitableTimer
SetUnhandledExceptionFilter
SetProcessPriorityBoost
SetEvent
SetErrorMode
SetConsoleCtrlHandler
ResumeThread
PostQueuedCompletionStatus
LoadLibraryA
LoadLibraryW
SetThreadContext
GetThreadContext
GetSystemInfo
GetSystemDirectoryA
GetStdHandle
GetQueuedCompletionStatusEx
GetProcessAffinityMask
GetProcAddress
GetEnvironmentStringsW
GetConsoleMode
FreeEnvironmentStringsW
ExitProcess
DuplicateHandle
CreateWaitableTimerExW
CreateThread
CreateIoCompletionPort
CreateFileA
CreateEventA
CloseHandle
AddVectoredExceptionHandler

Sections

.text
Size: 3.5MB - Virtual size: 3.5MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 3.5MB - Virtual size: 3.5MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1.0MB - Virtual size: 1.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 73KB - Virtual size: 72KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.symtab
Size: 512B - Virtual size: 4B

IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

9cbefe68f395e67356e2a5d8d1b285c0

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

Sections

.text Size: 3.5MB - Virtual size: 3.5MB

.rdata Size: 3.5MB - Virtual size: 3.5MB

.data Size: 1.0MB - Virtual size: 1.4MB

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

.reloc Size: 73KB - Virtual size: 72KB

.symtab Size: 512B - Virtual size: 4B

.text
Size: 3.5MB - Virtual size: 3.5MB

.rdata
Size: 3.5MB - Virtual size: 3.5MB

.data
Size: 1.0MB - Virtual size: 1.4MB

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

.reloc
Size: 73KB - Virtual size: 72KB

.symtab
Size: 512B - Virtual size: 4B