Static task
static1
Behavioral task
behavioral1
Sample
chkdsk.exe
Resource
win10v2004-20231020-en
General
-
Target
chkdsk.exe
-
Size
48KB
-
MD5
ff993f905e84365993204d12d63d67de
-
SHA1
bb36d95d805516008d756ad3ad846f0b1d177d62
-
SHA256
b825e4bb74036156a48f03eff9244091e1fc1cfd4e183062e267a6c091b7e263
-
SHA512
71234c990e2b1a91d5cf7a2e13b5733e8086dd93f56a353e99cc524850c77b08a7e17086feb919da61d7846605b85a57eb0d5d23f55756d29a561926dd9cff15
-
SSDEEP
384:/CFBZQDYGPE5p12t9zG3bSzjiKsXDeGC7+JWt+VuR0EdqPNiWSFqhW:KbZQcGsp2tBn7+q0eEaq
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource chkdsk.exe
Files
-
chkdsk.exe.exe windows:10 windows x64 arch:x64
7de8e5ca5fc1515b950abcd411d3a9e5
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
api-ms-win-core-console-l1-1-0
SetConsoleCtrlHandler
api-ms-win-eventlog-legacy-l1-1-0
ReportEventW
DeregisterEventSource
RegisterEventSourceW
ntdll
NtTerminateProcess
RtlUnhandledExceptionFilter
api-ms-win-core-errorhandling-l1-1-0
SetErrorMode
SetUnhandledExceptionFilter
GetLastError
api-ms-win-core-heap-l1-1-0
HeapSetInformation
api-ms-win-core-processthreads-l1-1-0
ExitProcess
api-ms-win-core-rtlsupport-l1-1-0
RtlVirtualUnwind
RtlCaptureContext
RtlLookupFunctionEntry
ulib
?IsGuidVolName@PATH@@QEAAEXZ
?AppendString@PATH@@QEAAEPEBVWSTRING@@@Z
?IsDrive@PATH@@QEBAEXZ
??1PATH@@UEAA@XZ
Get_Standard_Input_Stream
??0PATH@@QEAA@XZ
?MakeFileToken@MESSAGE@@SA_KPEBD@Z
?QueryPackedLog@MESSAGE@@QEAAEPEAVHMEM@@PEAK@Z
?Log@MESSAGE@@QEAAEPEBDZZ
?DisplayMsg@MESSAGE@@QEAAEKPEBDZZ
?DisplayMsg@MESSAGE@@QEAAEKW4MESSAGE_TYPE@@KPEBDZZ
?Display@MESSAGE@@QEAAEPEBDZZ
Get_Standard_Output_Stream
?Resize@HMEM@@QEAAEKK@Z
?Initialize@HMEM@@QEAAEXZ
?Initialize@PATH_ARGUMENT@@QEAAEPEADE@Z
??0HMEM@@QEAA@XZ
?Strcat@WSTRING@@QEAAEPEBV1@@Z
?Initialize@WSTRING@@QEAAEPEBV1@KK@Z
??0STRING_ARGUMENT@@QEAA@XZ
??0CHKDSK_MESSAGE@@QEAA@XZ
?DisplayMsg@MESSAGE@@QEAAEK@Z
??8WSTRING@@QEBAEAEBV0@@Z
?Strupr@WSTRING@@QEAAPEAV1@XZ
?Stricmp@WSTRING@@QEBAJPEBV1@@Z
??0FLAG_ARGUMENT@@QEAA@XZ
??0DSTRING@@QEAA@XZ
??1DSTRING@@UEAA@XZ
?Initialize@FLAG_ARGUMENT@@QEAAEPEAD@Z
??0ARRAY@@QEAA@XZ
?AnalyzePath@PATH@@QEAA?AW4PATH_ANALYZE_CODE@@PEAVWSTRING@@PEAV1@0@Z
??1STRING_ARGUMENT@@UEAA@XZ
??1CHKDSK_MESSAGE@@UEAA@XZ
??1ARRAY@@UEAA@XZ
?Initialize@ARRAY@@QEAAEKK@Z
?DeleteAllMembers@ARRAY@@UEAAEXZ
?Initialize@CHKDSK_MESSAGE@@QEAAEPEAVSTREAM@@00@Z
?Put@ARRAY@@UEAAEPEAVOBJECT@@@Z
??0LONG_ARGUMENT@@QEAA@XZ
?Initialize@WSTRING@@QEAAEPEBDK@Z
?Set@CHKDSK_MESSAGE@@UEAAEKW4MESSAGE_TYPE@@K@Z
?Initialize@STRING_ARGUMENT@@QEAAEPEAD@Z
??0ARGUMENT_LEXEMIZER@@QEAA@XZ
??1ARGUMENT_LEXEMIZER@@UEAA@XZ
?Initialize@ARGUMENT_LEXEMIZER@@QEAAEPEAVARRAY@@@Z
?DoParsing@ARGUMENT_LEXEMIZER@@QEAAEPEAVARRAY@@@Z
?QueryInvalidArgument@ARGUMENT_LEXEMIZER@@QEAAPEAVWSTRING@@XZ
?PrepareToParse@ARGUMENT_LEXEMIZER@@QEAAEPEAVWSTRING@@@Z
?SetCaseSensitive@ARGUMENT_LEXEMIZER@@QEAAXE@Z
??1OBJECT@@UEAA@XZ
?IsValueSet@ARGUMENT@@QEAAEXZ
?QueryCurrentDosDriveName@SYSTEM@@SAEPEAVWSTRING@@@Z
?QueryDriveType@SYSTEM@@SA?AW4DRIVE_TYPE@@PEBVWSTRING@@@Z
?QueryLibraryEntryPoint@SYSTEM@@SAP6A_JXZPEBVWSTRING@@0PEAPEAX@Z
?QueryNextLibraryEntryPoint@SYSTEM@@SAP6A_JXZPEAXPEBVWSTRING@@@Z
?FreeLibraryHandle@SYSTEM@@SAXPEAX@Z
??0PATH_ARGUMENT@@QEAA@XZ
?Initialize@WSTRING@@QEAAEPEBGK@Z
??1PATH_ARGUMENT@@UEAA@XZ
?Initialize@LONG_ARGUMENT@@QEAAEPEAD@Z
??1HMEM@@UEAA@XZ
?SqmExportOnError@SQMEXPORT@@SAXKKEE_KU_GUID@@@Z
?Initialize@PATH@@QEAAEPEBVWSTRING@@E@Z
ifsutil
?GetSnapshotErrorMessage@SNAPSHOT@@SAEJPEAVWSTRING@@@Z
?Initialize@DP_DRIVE@@QEAAEPEBVWSTRING@@PEAVMESSAGE@@EE@Z
??1DP_DRIVE@@UEAA@XZ
??0DP_DRIVE@@QEAA@XZ
?IsVolumeDirty@IFS_SYSTEM@@SAEPEAVWSTRING@@PEAE1PEAJ@Z
?QueryVolumeSize@IFS_SYSTEM@@SAEPEBVWSTRING@@PEA_K@Z
?DosDriveNameToNtDriveName@IFS_SYSTEM@@SAEPEBVWSTRING@@PEAV2@@Z
?GetSnapshotNtDeviceName@SNAPSHOT@@QEAAPEAGXZ
?QuerySnapshotDiffAreaVolume@SNAPSHOT@@QEAAEPEAVWSTRING@@@Z
?GetVolumeSnapshot@SNAPSHOT@@SAJPEAVWSTRING@@PEAPEAV1@@Z
?ReleaseVolumeSnapshot@SNAPSHOT@@SAEPEAV1@@Z
?IsFatalError@SNAPSHOT@@SAEJ@Z
?QueryID@DP_DRIVE@@QEAAEPEAU_GUID@@PEBVWSTRING@@@Z
?QueryFileSystemName@IFS_SYSTEM@@SAEPEBVWSTRING@@PEAV2@PEAJ1@Z
msvcrt
?terminate@@YAXXZ
_commode
_fmode
_initterm
__setusermatherr
_cexit
_exit
exit
__set_app_type
__getmainargs
_amsg_exit
_XcptFilter
__C_specific_handler
api-ms-win-core-synch-l1-2-0
Sleep
api-ms-win-core-libraryloader-l1-2-0
GetModuleHandleW
Sections
.text Size: 16KB - Virtual size: 14KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 12KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 4KB - Virtual size: 264B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 4KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 4KB - Virtual size: 48B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ