FlexEngine[.]exe

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General

Target

FlexEngine.exe
Size

850KB
MD5

0d309e588b29139c03c015c53d91f6f3
SHA1

fb7c36654cc7f6936e7936a37e2036125ea26f8d
SHA256

f835164fd3269d4ca59da190b4c37e765131dae0ea480e48cac107fc6ced6994
SHA512

861577395d524e2e0d61cc28e73682af01a38b35c8f87d12795ffca415353053e63d3b28ab6dd39e7979abe2a1c1e040c1435a08dc40c91ac62ecb8bca5daa2e
SSDEEP

12288:HXNtf3VVsyFEsPZpu4EE2X7fhqVXq9bMhQjGmEcbs:Hdtf7YsPZpu4EE2X7fhqVXwR8cw

Score

N/A

Malware Config

Signatures

Files

FlexEngine.exe
.exe windows x64

715a354beb9173ba56ded02b856c589f

Code Sign

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/01/2021, 00:00

Not After

06/01/2031, 00:00

Subject

CN=DigiCert Timestamp 2021,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

Issuer

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

Not Before

07/01/2016, 12:00

Not After

07/01/2031, 12:00

Subject

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

61:1c:b2:8a:00:00:00:00:00:26
Certificate

Issuer

CN=Microsoft Code Verification Root,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

15/04/2011, 19:41

Not After

15/04/2021, 19:51

Subject

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

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

09:0e:aa:29:4c:d4:ab:d9:eb:1c:c7:84:c9:24:24:3d
Certificate

Issuer

CN=DigiCert Assured ID Code Signing CA-1,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

03/12/2019, 00:00

Not After

07/12/2022, 12:00

Subject

CN=VMware\, Inc.,O=VMware\, Inc.,L=Palo Alto,ST=California,C=US,1.2.840.113549.1.9.1=#0c126e6f7265706c7940766d776172652e636f6d

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

0f:a8:49:06:15:d7:00:a0:be:21:76:fd:c5:ec:6d:bd
Certificate

Issuer

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

Not Before

11/02/2011, 12:00

Not After

10/02/2026, 12:00

Subject

CN=DigiCert Assured ID Code Signing CA-1,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

5d:aa:d4:1c:c1:a9:50:0b:5d:ed:a2:79:34:f4:62:3b
Certificate

Issuer

CN=Symantec Class 3 SHA256 Code Signing CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Not Before

13/08/2018, 00:00

Not After

11/09/2021, 23:59

Subject

CN=VMware\, Inc.,O=VMware\, Inc.,L=Palo Alto,ST=California,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

3d:78:d7:f9:76:49:60:b2:61:7d:f4:f0:1e:ca:86:2a
Certificate

Issuer

CN=VeriSign Class 3 Public Primary Certification Authority - G5,OU=VeriSign Trust Network+OU=(c) 2006 VeriSign\, Inc. - For authorized use only,O=VeriSign\, Inc.,C=US

Not Before

10/12/2013, 00:00

Not After

09/12/2023, 23:59

Subject

CN=Symantec Class 3 SHA256 Code Signing CA,OU=Symantec Trust Network,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageClientAuth
ExtKeyUsageCodeSigning

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

61:19:93:e4:00:00:00:00:00:1c
Certificate

Issuer

CN=Microsoft Code Verification Root,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

22/02/2011, 19:25

Not After

22/02/2021, 19:35

Subject

CN=VeriSign Class 3 Public Primary Certification Authority - G5,OU=VeriSign Trust Network+OU=(c) 2006 VeriSign\, Inc. - For authorized use only,O=VeriSign\, Inc.,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/01/2021, 00:00

Not After

06/01/2031, 00:00

Subject

CN=DigiCert Timestamp 2021,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

Issuer

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

Not Before

07/01/2016, 12:00

Not After

07/01/2031, 12:00

Subject

CN=DigiCert SHA2 Assured ID Timestamping CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

45:76:10:97:83:1b:34:10:91:84:fa:25:77:4f:23:51:1a:40:3e:e5:de:25:91:10:69:af:db:3a:63:f7:61:b1
Signer

Actual PE Digest

45:76:10:97:83:1b:34:10:91:84:fa:25:77:4f:23:51:1a:40:3e:e5:de:25:91:10:69:af:db:3a:63:f7:61:b1

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

CN=VMware\, Inc.,O=VMware\, Inc.,L=Palo Alto,ST=California,C=US

03/03/2021, 19:43
Valid: false

36:e9:c7:9b:10:f8:52:85:0e:05:5c:1f:23:09:ac:67:f0:26:92:d9
Signer

Actual PE Digest

36:e9:c7:9b:10:f8:52:85:0e:05:5c:1f:23:09:ac:67:f0:26:92:d9

Digest Algorithm

sha1

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

CN=VMware\, Inc.,O=VMware\, Inc.,L=Palo Alto,ST=California,C=US,1.2.840.113549.1.9.1=#0c126e6f7265706c7940766d776172652e636f6d

03/03/2021, 19:43
Valid: false

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

kernel32

HeapReAlloc
HeapFree
HeapSize
GetProcessHeap
WriteConsoleW
FlushFileBuffers
SetFilePointerEx
GetConsoleMode
GetConsoleCP
SetStdHandle
OutputDebugStringA
SetConsoleCtrlHandler
SetEnvironmentVariableW
SetEnvironmentVariableA
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetCPInfo
GetOEMCP
IsValidCodePage
FindNextFileW
HeapAlloc
FindFirstFileExW
FindFirstFileExA
FindClose
GetStringTypeW
GetFileType
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetLocaleInfoW
SizeofResource
CompareStringW
GetTimeFormatW
GetDateFormatW
GetCurrentThread
GetACP
WriteFile
GetStdHandle
WideCharToMultiByte
GetModuleFileNameA
ExitProcess
GetModuleHandleExW
FreeLibraryAndExitThread
ResumeThread
ExitThread
HeapDestroy
OpenProcess
ProcessIdToSessionId
TerminateProcess
GetCurrentProcessId
DuplicateHandle
lstrlenA
ResetEvent
MultiByteToWideChar
FindResourceW
lstrcmpiW
FindNextFileA
WaitForMultipleObjects
LoadResource
LoadLibraryExW
GetModuleFileNameW
FreeLibrary
CreateEventW
SetLastError
RaiseException
DecodePointer
lstrlenW
GetCurrentThreadId
CloseHandle
SetEvent
DeleteCriticalSection
InitializeCriticalSectionEx
LeaveCriticalSection
EnterCriticalSection
LoadLibraryW
LocalFree
GetProcAddress
GetModuleHandleW
GetCurrentProcess
WaitForSingleObject
CreateThread
InterlockedFlushSList
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSectionAndSpinCount
RtlUnwindEx
RtlPcToFileHeader
GetSystemTimeAsFileTime
QueryPerformanceCounter
GetStartupInfoW
IsProcessorFeaturePresent
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
GetLastError
LCMapStringW
WaitForSingleObjectEx
LoadLibraryExA
VirtualFree
IsDebuggerPresent
OutputDebugStringW
EncodePointer
InitializeSListHead
InterlockedPopEntrySList
InterlockedPushEntrySList
FlushInstructionCache
VirtualAlloc
CreateFileW

user32

PostThreadMessageW
DefWindowProcW
PostQuitMessage
UnregisterClassW
GetMessageW
LoadStringW
MessageBoxW
RegisterClassExW
CreateWindowExW
DestroyWindow
DialogBoxParamW
CharNextW
GetActiveWindow
SetWindowLongPtrW
GetMonitorInfoW
MonitorFromWindow
LoadImageW
GetWindow
GetParent
SetWindowLongW
GetWindowLongW
OffsetRect
MapWindowPoints
ClientToScreen
GetWindowRect
GetClientRect
SetWindowTextW
InvalidateRect
EndPaint
BeginPaint
ReleaseDC
GetDlgItem
EndDialog
BringWindowToTop
IsWindowVisible
SetWindowPos
MoveWindow
ShowWindow
PostMessageW
SendMessageW
LoadIconW
LoadCursorW

gdi32

SetTextColor
SetBkMode
SelectObject
PatBlt
GetStockObject
GetClipBox
DeleteObject
DeleteDC
CreateFontIndirectW
CreateCompatibleDC
BitBlt
GetObjectW

advapi32

RegOpenKeyExW
OpenProcessToken
RegEnumValueW
SetTokenInformation
AllocateLocallyUniqueId
RegQueryInfoKeyW
RegEnumKeyExW
RegDeleteValueW
RegDeleteKeyW
ConvertStringSidToSidW
RegSetValueExW
RegQueryValueExW
RegCreateKeyExW
RegCloseKey
LookupPrivilegeValueW
ImpersonateLoggedOnUser
GetTokenInformation
EqualSid
DuplicateTokenEx
AdjustTokenPrivileges
CreateProcessAsUserW

ole32

CoTaskMemFree
CoTaskMemRealloc
CoTaskMemAlloc
CoCreateInstance
CoInitializeEx
CoUninitialize

oleaut32

SysFreeString
VarUI4FromStr

wtsapi32

WTSQueryUserToken

userenv

CreateEnvironmentBlock
DestroyEnvironmentBlock

shlwapi

PathFindFileNameW
PathSetDlgItemPathW

comctl32

InitCommonControlsEx

gdiplus

GdiplusStartup
GdiplusShutdown

Sections

.text
Size: 338KB - Virtual size: 337KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 95KB - Virtual size: 95KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 22KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 370KB - Virtual size: 370KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

715a354beb9173ba56ded02b856c589f

Code Sign

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:ddCertificate

Extended Key Usages

Key Usages

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15Certificate

Extended Key Usages

Key Usages

61:1c:b2:8a:00:00:00:00:00:26Certificate

Key Usages

09:0e:aa:29:4c:d4:ab:d9:eb:1c:c7:84:c9:24:24:3dCertificate

Extended Key Usages

Key Usages

0f:a8:49:06:15:d7:00:a0:be:21:76:fd:c5:ec:6d:bdCertificate

Extended Key Usages

Key Usages

5d:aa:d4:1c:c1:a9:50:0b:5d:ed:a2:79:34:f4:62:3bCertificate

Extended Key Usages

Key Usages

3d:78:d7:f9:76:49:60:b2:61:7d:f4:f0:1e:ca:86:2aCertificate

Extended Key Usages

Key Usages

61:19:93:e4:00:00:00:00:00:1cCertificate

Key Usages

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:ddCertificate

Extended Key Usages

Key Usages

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15Certificate

Extended Key Usages

Key Usages

45:76:10:97:83:1b:34:10:91:84:fa:25:77:4f:23:51:1a:40:3e:e5:de:25:91:10:69:af:db:3a:63:f7:61:b1Signer

Signature Validations

Verification

03/03/2021, 19:43 Valid: false

36:e9:c7:9b:10:f8:52:85:0e:05:5c:1f:23:09:ac:67:f0:26:92:d9Signer

Signature Validations

Verification

03/03/2021, 19:43 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

advapi32

ole32

oleaut32

wtsapi32

userenv

shlwapi

comctl32

gdiplus

Sections

.text Size: 338KB - Virtual size: 337KB

.rdata Size: 95KB - Virtual size: 95KB

.data Size: 4KB - Virtual size: 12KB

.pdata Size: 22KB - Virtual size: 21KB

.tls Size: 512B - Virtual size: 9B

.rsrc Size: 370KB - Virtual size: 370KB

.reloc Size: 2KB - Virtual size: 2KB

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

61:1c:b2:8a:00:00:00:00:00:26
Certificate

09:0e:aa:29:4c:d4:ab:d9:eb:1c:c7:84:c9:24:24:3d
Certificate

0f:a8:49:06:15:d7:00:a0:be:21:76:fd:c5:ec:6d:bd
Certificate

5d:aa:d4:1c:c1:a9:50:0b:5d:ed:a2:79:34:f4:62:3b
Certificate

3d:78:d7:f9:76:49:60:b2:61:7d:f4:f0:1e:ca:86:2a
Certificate

61:19:93:e4:00:00:00:00:00:1c
Certificate

0d:42:4a:e0:be:3a:88:ff:60:40:21:ce:14:00:f0:dd
Certificate

0a:a1:25:d6:d6:32:1b:7e:41:e4:05:da:36:97:c2:15
Certificate

45:76:10:97:83:1b:34:10:91:84:fa:25:77:4f:23:51:1a:40:3e:e5:de:25:91:10:69:af:db:3a:63:f7:61:b1
Signer

03/03/2021, 19:43
Valid: false

36:e9:c7:9b:10:f8:52:85:0e:05:5c:1f:23:09:ac:67:f0:26:92:d9
Signer

03/03/2021, 19:43
Valid: false

.text
Size: 338KB - Virtual size: 337KB

.rdata
Size: 95KB - Virtual size: 95KB

.data
Size: 4KB - Virtual size: 12KB

.pdata
Size: 22KB - Virtual size: 21KB

.tls
Size: 512B - Virtual size: 9B

.rsrc
Size: 370KB - Virtual size: 370KB

.reloc
Size: 2KB - Virtual size: 2KB