Static task
static1
Behavioral task
behavioral1
Sample
accesschk.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
accesschk.exe
Resource
win10v2004-20230220-en
General
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Target
accesschk.exe
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Size
217KB
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MD5
520d55e8394a50e16967c93c3614ce43
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SHA1
b4b12a8d8353f2bb0001cab8081da1a1ed9e0c2d
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SHA256
0e2eeeb9cebffe77a5eaf668913b4c6453d6a5235aa5771eb2a09ff559a3dd7d
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SHA512
548bc3c5953bd587475c1cf315d0206c2332f1953fdf9db9680321859f9b156d277e6e9e116111d1102a8a7d8e99245b561caf27207fa40810156b997f5d3622
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SSDEEP
3072:rBhcUUsj/boxnsqI4sYG+5B2zMi6afOafaEZt:r/ZNjbAnsuGPzSGt
Malware Config
Signatures
Files
-
accesschk.exe.exe windows x86
1204d53ff682cdb112e6a9a525d6a05b
Code Sign
c1:00:8b:3c:3c:88:11:d1:3e:f6:63:ec:df:40Certificate
IssuerCN=Microsoft Root Authority,OU=Copyright (c) 1997 Microsoft Corp.+OU=Microsoft CorporationNot Before10/01/1997, 07:00Not After31/12/2020, 07:00SubjectCN=Microsoft Root Authority,OU=Copyright (c) 1997 Microsoft Corp.+OU=Microsoft Corporationc1:00:8b:3c:3c:88:11:d1:3e:f6:63:ec:df:40Certificate
IssuerCN=Microsoft Root Authority,OU=Copyright (c) 1997 Microsoft Corp.+OU=Microsoft CorporationNot Before10/01/1997, 07:00Not After31/12/2020, 07:00SubjectCN=Microsoft Root Authority,OU=Copyright (c) 1997 Microsoft Corp.+OU=Microsoft Corporation61:14:2c:a7:00:00:00:00:00:06Certificate
IssuerCN=Microsoft Timestamping PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=USNot Before12/06/2007, 23:54Not After13/06/2012, 00:04SubjectCN=Microsoft Timestamping Service,OU=nCipher DSE ESN:27F4-D440-54F3,O=Microsoft Corporation,L=Redmond,ST=Washington,C=USExtended Key Usages
ExtKeyUsageTimeStamping
Key Usages
KeyUsageDigitalSignature
KeyUsageContentCommitment
61:14:2c:a7:00:00:00:00:00:06Certificate
IssuerCN=Microsoft Timestamping PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=USNot Before12/06/2007, 23:54Not After13/06/2012, 00:04SubjectCN=Microsoft Timestamping Service,OU=nCipher DSE ESN:27F4-D440-54F3,O=Microsoft Corporation,L=Redmond,ST=Washington,C=USExtended Key Usages
ExtKeyUsageTimeStamping
Key Usages
KeyUsageDigitalSignature
KeyUsageContentCommitment
6a:0b:99:4f:c0:00:25:ab:11:db:45:1f:58:7a:67:a2Certificate
IssuerCN=Microsoft Root Authority,OU=Copyright (c) 1997 Microsoft Corp.+OU=Microsoft CorporationNot Before16/09/2006, 01:04Not After15/09/2019, 07:00SubjectCN=Microsoft Timestamping PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=USExtended Key Usages
ExtKeyUsageTimeStamping
Key Usages
KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign
6a:0b:99:4f:c0:00:1d:ab:11:da:c4:02:a1:66:27:baCertificate
IssuerCN=Microsoft Root Authority,OU=Copyright (c) 1997 Microsoft Corp.+OU=Microsoft CorporationNot Before04/04/2006, 17:44Not After26/04/2012, 07:00SubjectCN=Microsoft Code Signing PCA,OU=Copyright (c) 2000 Microsoft Corp.,O=Microsoft Corporation,L=Redmond,ST=Washington,C=USExtended Key Usages
ExtKeyUsageCodeSigning
Key Usages
KeyUsageContentCommitment
KeyUsageCertSign
KeyUsageCRLSign
61:46:9e:cb:00:04:00:00:00:65Certificate
IssuerCN=Microsoft Code Signing PCA,OU=Copyright (c) 2000 Microsoft Corp.,O=Microsoft Corporation,L=Redmond,ST=Washington,C=USNot Before04/04/2006, 19:43Not After04/10/2007, 19:53SubjectCN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=USExtended Key Usages
ExtKeyUsageCodeSigning
Key Usages
KeyUsageDigitalSignature
KeyUsageContentCommitment
50:07:6b:a4:09:ff:66:51:4a:78:d7:e6:fc:26:fc:7d:12:99:ee:11Signer
Actual PE Digest50:07:6b:a4:09:ff:66:51:4a:78:d7:e6:fc:26:fc:7d:12:99:ee:11Digest Algorithmsha1PE Digest MatchestrueHeaders
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
WriteConsoleW
GetConsoleOutputCP
CreateFileA
ReadFile
GetFileAttributesW
FindFirstFileW
FindNextFileW
FindClose
CreateFileW
GetFullPathNameW
GetVersion
GetLastError
GetProcAddress
GetCurrentProcess
SetLastError
CreateToolhelp32Snapshot
Process32FirstW
Process32NextW
OpenProcess
CloseHandle
ExpandEnvironmentStringsW
GetCurrentDirectoryW
DeviceIoControl
FormatMessageW
LocalAlloc
LoadLibraryW
LocalFree
GetModuleHandleW
HeapSize
HeapAlloc
HeapFree
GetVersionExA
GetProcessHeap
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
VirtualFree
VirtualAlloc
HeapReAlloc
HeapDestroy
HeapCreate
GetModuleHandleA
ExitProcess
WriteFile
GetStdHandle
GetModuleFileNameA
TerminateProcess
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
GetCPInfo
InterlockedIncrement
InterlockedDecrement
GetACP
GetOEMCP
IsValidCodePage
TlsGetValue
TlsAlloc
TlsSetValue
TlsFree
GetCurrentThreadId
LCMapStringA
WideCharToMultiByte
MultiByteToWideChar
LCMapStringW
GetConsoleCP
GetConsoleMode
RtlUnwind
GetModuleFileNameW
FreeEnvironmentStringsA
GetEnvironmentStrings
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineA
GetCommandLineW
SetHandleCount
GetFileType
GetStartupInfoA
QueryPerformanceCounter
GetTickCount
GetCurrentProcessId
GetSystemTimeAsFileTime
InitializeCriticalSection
Sleep
LoadLibraryA
SetFilePointer
GetStringTypeA
GetStringTypeW
GetLocaleInfoA
SetStdHandle
FlushFileBuffers
WriteConsoleA
user32
DialogBoxIndirectParamW
GetDlgItem
GetSysColorBrush
EndDialog
SetWindowTextW
LoadCursorW
SetCursor
InflateRect
SendMessageW
gdi32
EndDoc
EndPage
StartPage
StartDocW
SetMapMode
GetDeviceCaps
comdlg32
PrintDlgW
advapi32
OpenSCManagerW
CloseServiceHandle
OpenServiceW
EnumServicesStatusW
QueryServiceObjectSecurity
GetSecurityInfo
LookupPrivilegeNameW
DeleteAce
RegOpenKeyExW
RegGetKeySecurity
RegEnumKeyW
GetNamedSecurityInfoW
LookupPrivilegeValueW
AdjustTokenPrivileges
GetKernelObjectSecurity
ImpersonateLoggedOnUser
RevertToSelf
LookupAccountNameW
GetSecurityDescriptorDacl
GetEffectiveRightsFromAclW
GetSecurityDescriptorSacl
IsWellKnownSid
GetSecurityDescriptorOwner
GetTokenInformation
EqualSid
IsValidSid
GetSidIdentifierAuthority
GetAce
LookupAccountSidW
GetSidSubAuthorityCount
GetSidSubAuthority
OpenProcessToken
RegCreateKeyW
RegQueryValueExW
RegSetValueExW
RegCloseKey
Sections
.text Size: 68KB - Virtual size: 64KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 28KB - Virtual size: 26KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 100KB - Virtual size: 103KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 8KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ