OBKCh[.]exe | Triage

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General

Target

OBKCh.exe
Size

1.4MB
MD5

f8464376f2409b47d9912b105837bfb8
SHA1

2937680b519a7682a8e560098785f3447b79085c
SHA256

a64dcff78fae79cc878f62d832916752d97326a2588693affa6edb1f192a748f
SHA512

56a6c8659727aada14d4b5271e75b162cfd960efc4dda9e8ec3d00dc19d5467747deb70d392fc74096c288ca8df4c734eb3a76e8605475ac6c174e2e1d57d102
SSDEEP

24576:pnOaC2qsgdE9LM1hVZVBwpBxWt11HMyRkIbdR939V++WN:4aC2qsmE9LM1hfVBwtWt11HMy2M939Vm

Score

1^/10

Malware Config

Signatures

Files

OBKCh.exe
.exe windows:6 windows x86 arch:x86

6bf26003173ea2c76a5e14f78da61e3e

Code Sign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/08/2022, 00:00

Not After

09/11/2031, 23:59

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

14/07/2023, 00:00

Not After

13/10/2034, 23:59

Subject

CN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

77:bd:0e:05:b7:59:0b:b6:1d:47:61:53:1e:3f:75:ed
Certificate

Issuer

CN=GlobalSign Code Signing Root R45,O=GlobalSign nv-sa,C=BE

Not Before

28/07/2020, 00:00

Not After

28/07/2030, 00:00

Subject

CN=GlobalSign GCC R45 EV CodeSigning CA 2020,O=GlobalSign nv-sa,C=BE

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

53:0c:9f:c0:5d:0b:9d:49:72:63:e8:f7
Certificate

Issuer

CN=GlobalSign GCC R45 EV CodeSigning CA 2020,O=GlobalSign nv-sa,C=BE

Not Before

02/02/2024, 02:28

Not After

02/02/2025, 02:28

Subject

SERIALNUMBER=91440515324832161Q,CN=Shantou Chenghai Rongsheng Arts Company Ltd.,O=Shantou Chenghai Rongsheng Arts Company Ltd.,L=Shantou,ST=Guangdong,C=CN,1.2.840.113549.1.9.1=#0c186a61736f6e77616e674078696f6e677374656e672e6e6574,1.3.6.1.4.1.311.60.2.1.1=#13075368616e746f75,1.3.6.1.4.1.311.60.2.1.2=#13094775616e67646f6e67,1.3.6.1.4.1.311.60.2.1.3=#1302434e,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

67:b1:6d:21:be:9e:10:f2:56:3e:58:b6:79:ee:e2:3f:5e:85:4f:0d:55:91:31:59:ec:ea:4c:37:7c:6d:61:83
Signer

Actual PE Digest

67:b1:6d:21:be:9e:10:f2:56:3e:58:b6:79:ee:e2:3f:5e:85:4f:0d:55:91:31:59:ec:ea:4c:37:7c:6d:61:83

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

E:\xml-data\build-dir\CODRU-CL23M-SOURCES\bin\Win32\Release\OBKCh.pdb

Imports

crypt32

CryptMsgClose
CertCloseStore
CertFindCertificateInStore
CertFreeCertificateContext
CertFreeCRLContext
CertFreeCTLContext
CertGetNameStringW
CryptQueryObject
CryptMsgGetParam

kernel32

FindResourceW
Sleep
GetCurrentProcessId
TerminateProcess
GetExitCodeProcess
OpenProcess
ReadProcessMemory
GetModuleFileNameW
GetModuleHandleW
GetModuleHandleExW
GetProcAddress
LoadLibraryW
LocalAlloc
LocalFree
CreateToolhelp32Snapshot
Process32FirstW
Process32NextW
GetFileAttributesW
FindClose
FindFirstFileW
FindNextFileW
FormatMessageA
VerSetConditionMask
CreateFileW
DeleteFileW
FlushFileBuffers
LockFileEx
SetFilePointer
UnlockFile
WriteFile
SetLastError
GetOverlappedResult
SetEvent
WaitForMultipleObjectsEx
CreateEventW
SignalObjectAndWait
CreateThread
VerifyVersionInfoW
CreateDirectoryW
GetTempPathW
WTSGetActiveConsoleSessionId
K32GetModuleFileNameExW
GetComputerNameW
GetPrivateProfileStringW
WritePrivateProfileStringW
GetCommandLineW
SetEnvironmentVariableW
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
OpenEventW
GetSystemDirectoryW
MultiByteToWideChar
WideCharToMultiByte
IsDebuggerPresent
OutputDebugStringA
GetCurrentThreadId
ReadFile
TerminateThread
GetTickCount
GlobalAlloc
GlobalUnlock
HeapDestroy
GlobalFree
CreateMailslotW
Thread32First
Thread32Next
GetTimeZoneInformation
SizeofResource
GetEnvironmentStringsW
GetCommandLineA
LoadLibraryExW
GetACP
IsValidCodePage
ReadConsoleW
GetConsoleMode
GetConsoleOutputCP
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetLocaleInfoW
LCMapStringW
CompareStringW
GetTimeFormatW
GetDateFormatW
GetFileType
SetStdHandle
FreeLibraryAndExitThread
ExitThread
GetStdHandle
ExitProcess
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
RtlUnwind
QueryDosDeviceW
GetLongPathNameW
VirtualQuery
VirtualFree
VirtualProtect
VirtualAlloc
FlushInstructionCache
SetThreadContext
GetThreadContext
ResumeThread
SuspendThread
WriteConsoleW
K32GetMappedFileNameW
FileTimeToSystemTime
SetSearchPathMode
FormatMessageW
LoadLibraryA
LoadLibraryExA
GetModuleFileNameA
GetWindowsDirectoryW
GetLocalTime
GetCurrentThread
GetProcessTimes
DebugBreak
GetFileSizeEx
ExpandEnvironmentStringsW
GetEnvironmentVariableW
GetCPInfo
CompareStringEx
GetLocaleInfoEx
LCMapStringEx
EncodePointer
LockResource
LoadResource
FindResourceExW
WaitForSingleObject
FreeEnvironmentStringsW
GetLastError
RaiseException
DecodePointer
CloseHandle
FreeLibrary
DeleteCriticalSection
InitializeCriticalSectionEx
GetProcessHeap
HeapSize
HeapFree
HeapReAlloc
GetOEMCP
HeapAlloc
GetExitCodeThread
GlobalLock
GetTickCount64
SleepConditionVariableSRW
SleepConditionVariableCS
WakeAllConditionVariable
WakeConditionVariable
InitializeConditionVariable
QueryPerformanceFrequency
GetStringTypeW
GetFileInformationByHandleEx
DeviceIoControl
AreFileApisANSI
SetFilePointerEx
SetFileAttributesW
SetEndOfFile
GetFinalPathNameByHandleW
GetFileInformationByHandle
GetFileAttributesExW
FindFirstFileExW
TryEnterCriticalSection
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
InitializeSRWLock
InitializeSListHead
GetSystemTimeAsFileTime
QueryPerformanceCounter
GetStartupInfoW
IsProcessorFeaturePresent
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
WaitForSingleObjectEx
ResetEvent
InitializeCriticalSectionAndSpinCount
OutputDebugStringW

user32

GetThreadDesktop
EnumDesktopWindows
CloseDesktop
GetUserObjectInformationW
OpenInputDesktop
MsgWaitForMultipleObjects
DestroyWindow
OpenDesktopW
SwitchDesktop
CreateWindowExW
SendMessageW
PostThreadMessageW
DefWindowProcW
SetPropW
PostMessageW
PostQuitMessage
ShowWindow
UpdateWindow
GetDC
ReleaseDC
GetPropW
RegisterClassExW
PeekMessageW
DispatchMessageW
CloseClipboard
TranslateMessage
SetWinEventHook
DestroyIcon
GetClassNameW
RemovePropW
EnumWindows
GetWindowThreadProcessId
UnhookWinEvent
GetMessageW
SetActiveWindow
EnumChildWindows
GetShellWindow
GetActiveWindow
IsWindow
OpenClipboard
IsDialogMessageW
DefDlgProcW
SetWindowPos
EmptyClipboard
MoveWindow
ChangeWindowMessageFilterEx
SetParent
SetClipboardData
SetWindowLongW
GetDesktopWindow
CreateDialogIndirectParamW
RegisterWindowMessageW
EnableWindow
SetWindowTextW
SetClassLongW
BringWindowToTop
LoadIconW
GetAncestor
GetMonitorInfoW
MonitorFromRect
MonitorFromPoint
GetWindowLongW
OffsetRect
CopyRect
GetCursorPos
GetWindowRect
LoadCursorW

gdi32

GetDeviceCaps
CreateDIBSection
DeleteObject

advapi32

GetTokenInformation
OpenProcessToken
ConvertSidToStringSidW
LookupAccountSidW
GetAclInformation
GetSidSubAuthorityCount
GetSidSubAuthority
GetSidIdentifierAuthority
GetSecurityDescriptorDacl
GetFileSecurityW
GetAce
QueryServiceStatus
OpenServiceW
OpenSCManagerW
CloseServiceHandle
RegGetValueW
BuildExplicitAccessWithNameW
SetNamedSecurityInfoW
GetNamedSecurityInfoW
SetEntriesInAclW
RegQueryValueExW
RegOpenKeyExW
RegCloseKey

shell32

SHGetKnownFolderPath
SetCurrentProcessExplicitAppUserModelID
SHGetPropertyStoreForWindow
ord165
CommandLineToArgvW
SHGetPathFromIDListEx
ord190
ord155

ole32

CoInitialize
CreateStreamOnHGlobal
CoInitializeEx
CoInitializeSecurity
CLSIDFromProgID
CoTaskMemFree
CoSetProxyBlanket
CoUninitialize
CoCreateInstance

oleaut32

SysAllocString
SysFreeString
VariantClear
VariantInit
SysStringLen

shlwapi

PathRemoveFileSpecW
PathStripPathW
PathAppendW
PathIsRelativeW
PathCombineW
SHGetValueW

wintrust

CryptCATAdminAcquireContext
CryptCATAdminReleaseContext
CryptCATAdminEnumCatalogFromHash
WinVerifyTrust
CryptCATCatalogInfoFromContext
CryptCATAdminCalcHashFromFileHandle

ws2_32

WSACleanup
WSAStartup
WSAStringToAddressW

secur32

GetUserNameExW

version

GetFileVersionInfoA
VerQueryValueA
GetFileVersionInfoSizeA

Sections

.text
Size: 790KB - Virtual size: 789KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 179KB - Virtual size: 178KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 20KB - Virtual size: 26KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.detourc
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.detourd
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 386KB - Virtual size: 385KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 41KB - Virtual size: 40KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

6bf26003173ea2c76a5e14f78da61e3e

Code Sign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16Certificate

Extended Key Usages

Key Usages

77:bd:0e:05:b7:59:0b:b6:1d:47:61:53:1e:3f:75:edCertificate

Extended Key Usages

Key Usages

53:0c:9f:c0:5d:0b:9d:49:72:63:e8:f7Certificate

Extended Key Usages

Key Usages

67:b1:6d:21:be:9e:10:f2:56:3e:58:b6:79:ee:e2:3f:5e:85:4f:0d:55:91:31:59:ec:ea:4c:37:7c:6d:61:83Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

crypt32

kernel32

user32

gdi32

advapi32

shell32

ole32

oleaut32

shlwapi

wintrust

ws2_32

secur32

version

Sections

.text Size: 790KB - Virtual size: 789KB

.rdata Size: 179KB - Virtual size: 178KB

.data Size: 20KB - Virtual size: 26KB

.detourc Size: 4KB - Virtual size: 4KB

.detourd Size: 512B - Virtual size: 12B

.rsrc Size: 386KB - Virtual size: 385KB

.reloc Size: 41KB - Virtual size: 40KB

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

77:bd:0e:05:b7:59:0b:b6:1d:47:61:53:1e:3f:75:ed
Certificate

53:0c:9f:c0:5d:0b:9d:49:72:63:e8:f7
Certificate

67:b1:6d:21:be:9e:10:f2:56:3e:58:b6:79:ee:e2:3f:5e:85:4f:0d:55:91:31:59:ec:ea:4c:37:7c:6d:61:83
Signer

.text
Size: 790KB - Virtual size: 789KB

.rdata
Size: 179KB - Virtual size: 178KB

.data
Size: 20KB - Virtual size: 26KB

.detourc
Size: 4KB - Virtual size: 4KB

.detourd
Size: 512B - Virtual size: 12B

.rsrc
Size: 386KB - Virtual size: 385KB

.reloc
Size: 41KB - Virtual size: 40KB