2024-05-03_a57cad45f4fead8e3726bcebdf6fc249_bkransomware_cobalt-strike

Sharing

Copy URL Twitter E-mail

General

Target

2024-05-03_a57cad45f4fead8e3726bcebdf6fc249_bkransomware_cobalt-strike
Size

198KB
MD5

a57cad45f4fead8e3726bcebdf6fc249
SHA1

51b024c6de438ecf790a5e59bf702594038ef132
SHA256

39faad5425411fccca04e65a546b241a0006b0969a74b3df3babbb638c7b6b9f
SHA512

41ebe4b1cd75511fb912e28d67b8b5f5c2142fe72204d6e7b6fbc4be34f687d336c75e1ed8fca511c8b1d2e76dd8cd4e9956ac61828082663f55a5aff11c051d
SSDEEP

3072:o5JiUjabjaUC96krbRY44hPr5EgwvWCCJkcMzyP51Uc7hHe3CC8qCH3Rk8:o5JiUjaPayYL0agwcg1CCzCH3Rl

Score

1^/10

Malware Config

Signatures

Files

2024-05-03_a57cad45f4fead8e3726bcebdf6fc249_bkransomware_cobalt-strike
.exe windows:5 windows x86 arch:x86

6861a550e5f0ca4c7b5a10ec45d0744b

Code Sign

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

3c:bb:bd:07:f2:1e:e0:24:6c:98:ac:77:2b:f2:43:1a
Certificate

Issuer

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

Not Before

18/12/2023, 00:00

Not After

02/02/2027, 23:59

Subject

CN=有限会社サイトー企画,O=有限会社サイトー企画,ST=Fukui,C=JP

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

39:4c:25:e1:7c:a0:6d:27:a8:65:e2:3b:d9:1d:22:d4
Certificate

Issuer

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

03/05/2023, 00:00

Not After

02/08/2034, 23:59

Subject

CN=Sectigo RSA Time Stamping Signer #4,O=Sectigo Limited,ST=Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

Issuer

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Not Before

02/05/2019, 00:00

Not After

18/01/2038, 23:59

Subject

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

16:34:a6:78:5a:b0:4f:d7:bd:16:ee:df:f0:54:6e:7e:f3:3c:35:d0:50:2a:bb:92:e7:bc:3b:30:61:a7:cc:bf
Signer

Actual PE Digest

16:34:a6:78:5a:b0:4f:d7:bd:16:ee:df:f0:54:6e:7e:f3:3c:35:d0:50:2a:bb:92:e7:bc:3b:30:61:a7:cc:bf

Digest Algorithm

sha256

PE Digest Matches

true

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

Imports

kernel32

lstrcmpA
lstrcmpiA
lstrcpynA
lstrcpyA
lstrcatA
lstrlenA
OpenFile
LoadLibraryA
LoadLibraryW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleW
ExpandEnvironmentStringsA
GetSystemDirectoryW
GetVersionExA
GetACP
GetOEMCP
MultiByteToWideChar
LockResource
EnterCriticalSection
LeaveCriticalSection
LoadResource
SizeofResource
SetFilePointer
LoadLibraryExW
FindResourceW
IsDBCSLeadByteEx
TerminateThread
InitializeCriticalSection
DeleteCriticalSection
SetEvent
WaitForSingleObject
WaitForMultipleObjects
GetSystemInfo
CreateEventA
CreateFileA
FindFirstFileA
IsDBCSLeadByte
GetModuleFileNameA
OutputDebugStringW
GetSystemDirectoryA
SetCurrentDirectoryA
SetCurrentDirectoryW
GetCurrentDirectoryA
GetCurrentDirectoryW
CreateFileW
FindFirstFileW
FindNextFileA
CloseHandle
SetFilePointerEx
SetStdHandle
GetConsoleMode
GetConsoleCP
FlushFileBuffers
LCMapStringW
GetStringTypeW
HeapReAlloc
RtlUnwind
GetCPInfo
IsValidCodePage
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetSystemTimeAsFileTime
GetCurrentProcessId
QueryPerformanceCounter
GetFileType
GetStdHandle
HeapSize
GetModuleHandleExW
ExitProcess
RaiseException
HeapAlloc
GetStartupInfoW
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
TerminateProcess
WriteConsoleW
GetCurrentProcess
Sleep
InitializeCriticalSectionAndSpinCount
SetLastError
SetUnhandledExceptionFilter
UnhandledExceptionFilter
HeapFree
GetCommandLineA
ExitThread
GetCurrentThreadId
CreateThread
DecodePointer
EncodePointer
IsProcessorFeaturePresent
IsDebuggerPresent
GetFileTime
FindClose
SetEndOfFile
ReadFile
WriteFile
GetFileSize
GetProcAddress
WideCharToMultiByte
GetLastError
GetProcessHeap
HeapCompact
VirtualFree
VirtualAlloc
LocalFree
LocalSize
LocalUnlock
LocalLock
LocalReAlloc
FindNextFileW
LocalAlloc

user32

SetWindowTextW
SetWindowTextA
GetWindowTextA
GetWindowTextW
MessageBoxA
SetWindowLongA
SetWindowLongW
FindWindowA
FindWindowW
LoadStringA
LoadStringW
IsDialogMessageW
IsDialogMessageA
GetMenuStringW
GetMenuStringA
IsWindowUnicode
GetActiveWindow
SendDlgItemMessageW
SetDlgItemTextA
DialogBoxParamW
DialogBoxParamA
CreateDialogParamA
CreateWindowExW
CreateWindowExA
CallWindowProcW
CallWindowProcA
PeekMessageW
PeekMessageA
DispatchMessageW
DispatchMessageA
MsgWaitForMultipleObjects
SetDlgItemInt
TranslateMessage
SystemParametersInfoA
GetWindow
GetParent
GetDesktopWindow
GetWindowLongA
SetRect
ScreenToClient
MessageBoxW
GetWindowRect
GetSystemMetrics
EnableWindow
GetFocus
SetFocus
SendDlgItemMessageA
IsDlgButtonChecked
CheckDlgButton
GetDlgItem
EndDialog
SetWindowPos
ShowWindow
DestroyWindow
PostMessageA
SendMessageA
wsprintfA
CreateDialogParamW

comdlg32

GetSaveFileNameA
GetOpenFileNameA
GetOpenFileNameW
GetSaveFileNameW

advapi32

RegSetValueExW
RegSetValueExA
RegQueryValueExA
RegQueryValueExW

shell32

SHGetPathFromIDListA
SHGetDesktopFolder
SHGetSpecialFolderLocation
SHGetMalloc
SHBrowseForFolderA

Sections

.text
Size: 96KB - Virtual size: 95KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 29KB - Virtual size: 29KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 6KB - Virtual size: 16KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 49KB - Virtual size: 49KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

6861a550e5f0ca4c7b5a10ec45d0744b

Code Sign

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

3c:bb:bd:07:f2:1e:e0:24:6c:98:ac:77:2b:f2:43:1aCertificate

Extended Key Usages

Key Usages

39:4c:25:e1:7c:a0:6d:27:a8:65:e2:3b:d9:1d:22:d4Certificate

Extended Key Usages

Key Usages

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9Certificate

Extended Key Usages

Key Usages

16:34:a6:78:5a:b0:4f:d7:bd:16:ee:df:f0:54:6e:7e:f3:3c:35:d0:50:2a:bb:92:e7:bc:3b:30:61:a7:cc:bfSigner

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

comdlg32

advapi32

shell32

Sections

.text Size: 96KB - Virtual size: 95KB

.rdata Size: 29KB - Virtual size: 29KB

.data Size: 6KB - Virtual size: 16KB

.rsrc Size: 49KB - Virtual size: 49KB

.reloc Size: 6KB - Virtual size: 6KB

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

3c:bb:bd:07:f2:1e:e0:24:6c:98:ac:77:2b:f2:43:1a
Certificate

39:4c:25:e1:7c:a0:6d:27:a8:65:e2:3b:d9:1d:22:d4
Certificate

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

16:34:a6:78:5a:b0:4f:d7:bd:16:ee:df:f0:54:6e:7e:f3:3c:35:d0:50:2a:bb:92:e7:bc:3b:30:61:a7:cc:bf
Signer

.text
Size: 96KB - Virtual size: 95KB

.rdata
Size: 29KB - Virtual size: 29KB

.data
Size: 6KB - Virtual size: 16KB

.rsrc
Size: 49KB - Virtual size: 49KB

.reloc
Size: 6KB - Virtual size: 6KB