2024-05-03_94599b0658d8d9645201d59ea5529e8a_bkransomware_cobalt-strike

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General

Target

2024-05-03_94599b0658d8d9645201d59ea5529e8a_bkransomware_cobalt-strike
Size

85KB
MD5

94599b0658d8d9645201d59ea5529e8a
SHA1

ce87fbe4a4db252b70a61342bca12bc89d96fd5b
SHA256

37fdc0691ad32bb29a5139d048e8cc1170567e4d2db5a18b8f65c4800cca816a
SHA512

05ac7752e98c9c56a200e24046423e7abb5f4c6cf375087446b88f1c9539cb287faac7137b06d6bcb8be38d9a7c144c1312885ccc2fffecd18cb28c588684c5a
SSDEEP

1536:H8sPs71D+Xh8jBjpYmzlBcmQsWjcdFPPgXriDJU:HPsZD8h7OJfFPoXrqU

Score

1^/10

Malware Config

Signatures

Files

2024-05-03_94599b0658d8d9645201d59ea5529e8a_bkransomware_cobalt-strike
.exe windows:5 windows x86 arch:x86

6209c933c125cde171b46f05751d9736

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

ac:f8:f0:b5:f9:b4:9d:e1:88:b7:7b:5c:78:de:4b:54
Certificate

Issuer

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

Not Before

16/12/2021, 00:00

Not After

27/01/2024, 23:59

Subject

CN=SAITO-KIKAKU CORPORATION,O=SAITO-KIKAKU CORPORATION,ST=Fukui,C=JP

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

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

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

17:0b:5c:f6:6a:c7:ef:d0:c7:84:a4:72:ef:ea:47:23:b4:cc:c6:3b
Signer

Actual PE Digest

17:0b:5c:f6:6a:c7:ef:d0:c7:84:a4:72:ef:ea:47:23:b4:cc:c6:3b

Digest Algorithm

sha1

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

TerminateProcess
GetLastError
Sleep
CloseHandle
lstrcpyA
lstrlenA
LoadLibraryW
GetModuleFileNameW
GetModuleHandleW
GetSystemDirectoryW
GetVersionExW
WriteConsoleW
SetFilePointerEx
SetStdHandle
GetConsoleMode
GetConsoleCP
FlushFileBuffers
HeapSize
HeapReAlloc
HeapAlloc
OutputDebugStringW
RtlUnwind
LoadLibraryExW
OpenProcess
LCMapStringW
GetStringTypeW
HeapFree
LeaveCriticalSection
EnterCriticalSection
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
GetCurrentProcess
InitializeCriticalSectionAndSpinCount
SetUnhandledExceptionFilter
UnhandledExceptionFilter
GetProcAddress
FreeLibrary
GetCommandLineA
IsDebuggerPresent
EncodePointer
DecodePointer
IsProcessorFeaturePresent
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
SetLastError
GetCurrentThreadId
MultiByteToWideChar
ExitProcess
GetModuleHandleExW
WideCharToMultiByte
GetProcessHeap
GetStdHandle
GetFileType
DeleteCriticalSection
GetStartupInfoW
GetModuleFileNameA
WriteFile
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
GetEnvironmentStringsW
FreeEnvironmentStringsW
CreateFileW

user32

GetWindow
GetWindowThreadProcessId
GetTopWindow
GetClassNameW
FindWindowW
GetParent
GetDesktopWindow
SetWindowLongW
GetWindowLongW
MessageBoxW
GetWindowRect
GetWindowTextW
ReleaseDC
GetDC
SetForegroundWindow
GetSystemMetrics
IsWindowEnabled
EnableWindow
KillTimer
SetTimer
SetFocus
SetDlgItemTextW
GetDlgItem
EndDialog
DialogBoxParamW
IsWindowVisible
SetWindowPos
DestroyWindow
IsWindow
CreateWindowExW
RegisterClassW
DefWindowProcW
PostMessageW
SendMessageW
RegisterWindowMessageW
wsprintfW

gdi32

GetTextExtentPoint32W
SelectObject

Sections

.text
Size: 46KB - Virtual size: 46KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 19KB - Virtual size: 19KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

6209c933c125cde171b46f05751d9736

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

ac:f8:f0:b5:f9:b4:9d:e1:88:b7:7b:5c:78:de:4b:54Certificate

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

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

Extended Key Usages

Key Usages

17:0b:5c:f6:6a:c7:ef:d0:c7:84:a4:72:ef:ea:47:23:b4:cc:c6:3bSigner

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

Sections

.text Size: 46KB - Virtual size: 46KB

.rdata Size: 19KB - Virtual size: 19KB

.data Size: 4KB - Virtual size: 11KB

.rsrc Size: 4KB - Virtual size: 3KB

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

ac:f8:f0:b5:f9:b4:9d:e1:88:b7:7b:5c:78:de:4b:54
Certificate

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

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

17:0b:5c:f6:6a:c7:ef:d0:c7:84:a4:72:ef:ea:47:23:b4:cc:c6:3b
Signer

.text
Size: 46KB - Virtual size: 46KB

.rdata
Size: 19KB - Virtual size: 19KB

.data
Size: 4KB - Virtual size: 11KB

.rsrc
Size: 4KB - Virtual size: 3KB