2024-05-16_a4db76d00ccd2b7947cae8aa841a15a5_bkransomware_cobalt-strike_floxif

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General

Target

2024-05-16_a4db76d00ccd2b7947cae8aa841a15a5_bkransomware_cobalt-strike_floxif
Size

718KB
MD5

a4db76d00ccd2b7947cae8aa841a15a5
SHA1

b46ad83677484a0c84b5b74ada5b70d6a7109c75
SHA256

4248eb94344a5438e9a3addb96f26948e35dd09c1a0bb9fbdc2254434ca44cfa
SHA512

5189875e56782fcdfc3d64b80b01500567e9744494d64bde64208454a3a933c90fa03be2fde2d74ba27229742e3ad16a30881088fc0b899af8334fd779936f95
SSDEEP

12288:4ZIxO2WIvUjSlH/MasqsA1Bz5FfhxdD1HZYTueef6lN10WRbwFYApUkiI0akGJ5M:bxkXAHzH9xHsgfescQpwS5hvrEH77A/m

Score

1^/10

Malware Config

Signatures

Files

2024-05-16_a4db76d00ccd2b7947cae8aa841a15a5_bkransomware_cobalt-strike_floxif
.exe windows:6 windows x86 arch:x86

2dea8bf81cbfa9cd19bfca31a7d65406

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

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16
Certificate

Issuer

CN=AAA Certificate Services,O=Comodo CA Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

25/05/2021, 00:00

Not After

31/12/2028, 23:59

Subject

CN=Sectigo Public Code Signing Root R46,O=Sectigo Limited,C=GB

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

62:1d:6d:0c:52:01:9e:3b:90:79:15:20:89:21:1c:0a
Certificate

Issuer

CN=Sectigo Public Code Signing Root R46,O=Sectigo Limited,C=GB

Not Before

22/03/2021, 00:00

Not After

21/03/2036, 23:59

Subject

CN=Sectigo Public Code Signing CA R36,O=Sectigo Limited,C=GB

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

5f:4a:34:a6:97:6e:7c:aa:8f:22:3d:ec:53:ac:72:6f
Certificate

Issuer

CN=Sectigo Public Code Signing CA R36,O=Sectigo Limited,C=GB

Not Before

14/01/2022, 00:00

Not After

16/02/2023, 23:59

Subject

CN=DAEGIL SOFT,O=DAEGIL SOFT,ST=Seoul,C=KR

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16
Certificate

Issuer

CN=AAA Certificate Services,O=Comodo CA Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

25/05/2021, 00:00

Not After

31/12/2028, 23:59

Subject

CN=Sectigo Public Code Signing Root R46,O=Sectigo Limited,C=GB

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

62:1d:6d:0c:52:01:9e:3b:90:79:15:20:89:21:1c:0a
Certificate

Issuer

CN=Sectigo Public Code Signing Root R46,O=Sectigo Limited,C=GB

Not Before

22/03/2021, 00:00

Not After

21/03/2036, 23:59

Subject

CN=Sectigo Public Code Signing CA R36,O=Sectigo Limited,C=GB

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

5f:4a:34:a6:97:6e:7c:aa:8f:22:3d:ec:53:ac:72:6f
Certificate

Issuer

CN=Sectigo Public Code Signing CA R36,O=Sectigo Limited,C=GB

Not Before

14/01/2022, 00:00

Not After

16/02/2023, 23:59

Subject

CN=DAEGIL SOFT,O=DAEGIL SOFT,ST=Seoul,C=KR

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

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

ec:83:52:ae:b8:fb:6a:fa:30:cf:86:33:12:ff:61:7c:12:9c:70:d1:a8:42:0e:76:b7:6d:d2:00:42:05:d6:63
Signer

Actual PE Digest

ec:83:52:ae:b8:fb:6a:fa:30:cf:86:33:12:ff:61:7c:12:9c:70:d1:a8:42:0e:76:b7:6d:d2:00:42:05:d6:63

Digest Algorithm

sha256

PE Digest Matches

false

e4:45:45:66:ac:71:92:63:31:fa:1f:95:67:e5:7b:d9:08:a3:88:14
Signer

Actual PE Digest

e4:45:45:66:ac:71:92:63:31:fa:1f:95:67:e5:7b:d9:08:a3:88:14

Digest Algorithm

sha1

PE Digest Matches

false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

F:\SourceRoot\vc13\EZgen\201812\bin\Win32\Release\Platform\PlatformService.pdb

Imports

wtsapi32

WTSFreeMemory
WTSQueryUserToken
WTSEnumerateSessionsA

userenv

DestroyEnvironmentBlock
CreateEnvironmentBlock

kernel32

GlobalReAlloc
GlobalHandle
LocalReAlloc
GlobalFlags
CompareStringW
GetLocaleInfoW
GetSystemDefaultUILanguage
GetUserDefaultUILanguage
GetOEMCP
GetCPInfo
GetPrivateProfileIntA
GetPrivateProfileStringA
WritePrivateProfileStringA
IsDebuggerPresent
IsProcessorFeaturePresent
GetSystemTimeAsFileTime
ExitProcess
GetModuleHandleExW
AreFileApisANSI
CreateThread
ExitThread
GetCommandLineA
TlsGetValue
SetStdHandle
GetFileType
HeapQueryInformation
GetStdHandle
UnhandledExceptionFilter
GetStartupInfoW
IsValidCodePage
GetStringTypeW
GetConsoleMode
ReadConsoleW
GetConsoleCP
GetTimeZoneInformation
SetFilePointerEx
QueryPerformanceCounter
GetEnvironmentStringsW
FreeEnvironmentStringsW
OutputDebugStringW
GetDateFormatW
GetTimeFormatW
LCMapStringW
IsValidLocale
GetUserDefaultLCID
EnumSystemLocalesW
WriteConsoleW
CreateFileW
SetEnvironmentVariableA
TlsAlloc
InitializeCriticalSection
GetCurrentThread
GetFileSizeEx
GetFileAttributesExA
TlsFree
GetVolumeInformationA
DuplicateHandle
WriteFile
UnlockFile
SetFilePointer
SetEndOfFile
ReadFile
LockFile
FlushFileBuffers
lstrcmpA
CompareStringA
GlobalGetAtomNameA
GlobalFindAtomA
GlobalAddAtomA
lstrcmpW
GlobalDeleteAtom
LoadLibraryExW
GetSystemDirectoryW
LeaveCriticalSection
EnterCriticalSection
EncodePointer
GlobalFree
GlobalUnlock
GlobalLock
GlobalAlloc
LoadLibraryW
GetModuleHandleW
GetModuleFileNameW
InitializeCriticalSectionAndSpinCount
SetLastError
OutputDebugStringA
GetLocalTime
GetModuleHandleA
ResetEvent
GetACP
DeleteCriticalSection
DecodePointer
HeapSize
RaiseException
InitializeCriticalSectionEx
HeapReAlloc
SetEvent
SetUnhandledExceptionFilter
GetCurrentThreadId
CreateEventA
lstrcmpiA
ReleaseMutex
CreateMutexA
OpenMutexA
HeapFree
GetProcessHeap
HeapAlloc
GetCurrentProcess
GetVersionExA
LocalAlloc
TerminateProcess
GetFileSize
FileTimeToLocalFileTime
FileTimeToSystemTime
TlsSetValue
LocalFree
FormatMessageA
GetModuleFileNameA
FindClose
FindFirstFileA
CreateDirectoryA
GetFileAttributesA
GetLastError
GetFileTime
CreateFileA
Sleep
WaitForSingleObject
GetFullPathNameA
CloseHandle
FreeLibrary
GetProcAddress
LoadLibraryA
GetCurrentProcessId
DeleteFileA
MultiByteToWideChar
FindResourceW
LoadResource
LockResource
SizeofResource
WideCharToMultiByte
RtlUnwind

user32

PostQuitMessage
ClientToScreen
TabbedTextOutA
GrayStringA
DrawTextExA
DrawTextA
LoadBitmapW
SetMenuItemInfoA
GetMenuCheckMarkDimensions
SetMenuItemBitmaps
EnableMenuItem
CheckMenuItem
ReleaseDC
GetDC
GetCursorPos
GetActiveWindow
GetSystemMetrics
CharUpperA
SetWindowTextA
IsWindowEnabled
ShowWindow
GetMonitorInfoA
MonitorFromWindow
WinHelpA
LoadIconW
LoadIconA
CallNextHookEx
GetSysColorBrush
SetWindowsHookExA
GetWindow
GetLastActivePopup
GetTopWindow
GetClassNameA
GetClassLongA
SetWindowLongA
GetWindowLongA
PtInRect
CopyRect
MapWindowPoints
ScreenToClient
AdjustWindowRectEx
GetClientRect
RemovePropA
GetPropA
SetPropA
RedrawWindow
ValidateRect
SetForegroundWindow
GetForegroundWindow
SetMenu
GetMenu
GetCapture
GetKeyState
GetFocus
GetDlgCtrlID
SetWindowPos
DestroyWindow
CreateWindowExA
GetClassInfoExA
GetClassInfoA
RegisterClassA
RealChildWindowFromPoint
DestroyMenu
SetTimer
KillTimer
InvalidateRect
UnhookWindowsHookEx
CallWindowProcA
DefWindowProcA
GetMessageTime
GetMessagePos
RegisterWindowMessageA
GetWindowTextA
GetMenuItemCount
GetMenuItemID
GetSubMenu
PostThreadMessageA
TranslateMessage
GetMessageA
wsprintfA
IsWindowVisible
GetWindowThreadProcessId
IsWindow
DispatchMessageA
PeekMessageA
UpdateWindow
SendMessageA
GetDlgItem
EnableWindow
LoadCursorA
SetCursor
MessageBoxA
GetSysColor
PostMessageA
GetParent
GetWindowRect

gdi32

ScaleWindowExtEx
ScaleViewportExtEx
OffsetViewportOrgEx
SetWindowExtEx
SetViewportOrgEx
SetViewportExtEx
ExtTextOutA
TextOutA
SetMapMode
SelectObject
SaveDC
RestoreDC
RectVisible
PtVisible
GetStockObject
GetClipBox
Escape
DeleteObject
DeleteDC
GetDeviceCaps
SetBkColor
SetTextColor
CreateBitmap

winspool.drv

OpenPrinterA
DocumentPropertiesA
ClosePrinter

advapi32

RegQueryValueExA
RegEnumValueA
RegDeleteValueA
RegQueryValueA
RegEnumKeyA
ImpersonateLoggedOnUser
RevertToSelf
CreateProcessAsUserA
DuplicateTokenEx
AdjustTokenPrivileges
LookupPrivilegeValueA
SetServiceStatus
RegisterServiceCtrlHandlerExA
StartServiceCtrlDispatcherA
SetSecurityDescriptorDacl
InitializeSecurityDescriptor
SetEntriesInAclA
AllocateAndInitializeSid
FreeSid
ControlService
StartServiceA
ChangeServiceConfigA
DeleteService
OpenServiceA
CloseServiceHandle
CreateServiceA
OpenSCManagerA
GetSidSubAuthorityCount
GetSidSubAuthority
GetTokenInformation
OpenProcessToken
RegOpenKeyExA
RegDeleteKeyA
RegSetValueExA
RegCreateKeyExA
RegCloseKey

shell32

SHGetSpecialFolderPathA

shlwapi

PathStripToRootA
PathFindExtensionA
PathFindFileNameA
PathIsUNCA

ole32

CoCreateGuid
CoCreateInstance
CoInitialize
CoUninitialize
CoTaskMemFree

oleaut32

VariantChangeType
SysFreeString
SysAllocStringLen
VariantClear
SysAllocString
VariantInit
VariantTimeToSystemTime
SystemTimeToVariantTime
VarUdateFromDate

version

GetFileVersionInfoSizeA
GetFileVersionInfoA
VerQueryValueA

ws2_32

select
listen
recv
bind
htons
setsockopt
ioctlsocket
socket
WSAStartup
WSAGetLastError
closesocket
send
inet_ntoa
inet_addr
accept
__WSAFDIsSet

oleacc

LresultFromObject
CreateStdAccessibleObject

Sections

.text
Size: 465KB - Virtual size: 465KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 96KB - Virtual size: 96KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 14KB - Virtual size: 31KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 21KB - Virtual size: 20KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 26KB - Virtual size: 26KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

2dea8bf81cbfa9cd19bfca31a7d65406

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

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16Certificate

Extended Key Usages

Key Usages

62:1d:6d:0c:52:01:9e:3b:90:79:15:20:89:21:1c:0aCertificate

Extended Key Usages

Key Usages

5f:4a:34:a6:97:6e:7c:aa:8f:22:3d:ec:53:ac:72:6fCertificate

Extended Key Usages

Key Usages

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16Certificate

Extended Key Usages

Key Usages

62:1d:6d:0c:52:01:9e:3b:90:79:15:20:89:21:1c:0aCertificate

Extended Key Usages

Key Usages

5f:4a:34:a6:97:6e:7c:aa:8f:22:3d:ec:53:ac:72:6fCertificate

Extended Key Usages

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

ec:83:52:ae:b8:fb:6a:fa:30:cf:86:33:12:ff:61:7c:12:9c:70:d1:a8:42:0e:76:b7:6d:d2:00:42:05:d6:63Signer

e4:45:45:66:ac:71:92:63:31:fa:1f:95:67:e5:7b:d9:08:a3:88:14Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

wtsapi32

userenv

kernel32

user32

gdi32

winspool.drv

advapi32

shell32

shlwapi

ole32

oleaut32

version

ws2_32

oleacc

Sections

.text Size: 465KB - Virtual size: 465KB

.rdata Size: 96KB - Virtual size: 96KB

.data Size: 14KB - Virtual size: 31KB

.rsrc Size: 21KB - Virtual size: 20KB

.reloc Size: 26KB - Virtual size: 26KB

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

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16
Certificate

62:1d:6d:0c:52:01:9e:3b:90:79:15:20:89:21:1c:0a
Certificate

5f:4a:34:a6:97:6e:7c:aa:8f:22:3d:ec:53:ac:72:6f
Certificate

48:fc:93:b4:60:55:94:8d:36:a7:c9:8a:89:d6:94:16
Certificate

62:1d:6d:0c:52:01:9e:3b:90:79:15:20:89:21:1c:0a
Certificate

5f:4a:34:a6:97:6e:7c:aa:8f:22:3d:ec:53:ac:72:6f
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

ec:83:52:ae:b8:fb:6a:fa:30:cf:86:33:12:ff:61:7c:12:9c:70:d1:a8:42:0e:76:b7:6d:d2:00:42:05:d6:63
Signer

e4:45:45:66:ac:71:92:63:31:fa:1f:95:67:e5:7b:d9:08:a3:88:14
Signer

.text
Size: 465KB - Virtual size: 465KB

.rdata
Size: 96KB - Virtual size: 96KB

.data
Size: 14KB - Virtual size: 31KB

.rsrc
Size: 21KB - Virtual size: 20KB

.reloc
Size: 26KB - Virtual size: 26KB