cobaltstrike | bb1b78dde7ed41a8f18420e4508d3d80747ad7982a43d9a3911db9b45d28a348[.]zip

Sharing

Copy URL Twitter E-mail

General

Target

bb1b78dde7ed41a8f18420e4508d3d80747ad7982a43d9a3911db9b45d28a348.zip
Size

135KB
MD5

281b7fbe318826d372fe4260ca00408c
SHA1

3104e07a0530d123e36be1cd9d05f28c82472939
SHA256

24217e626115976d8dd492c9eadb33a07711d308ffe7fa3abb910fef8a0d3d4e
SHA512

c1093607b04c2b274614e39fe40573e5c8b11dbf03401027031d8ca95a687c36eeb237dcafa7ad3b4c908656a1b8480adbd337226e0dcc4c04dec773d9a7e2bd
SSDEEP

3072:fyZ+sXu6eHPODZ/2ZFZ3vXB5w3f8p18XtNm4uih5aTBbsMPmYv:W+sZMoKFZ3vXB5If8p1WNmFibadI2lv

Score

10^/10

cobaltstrike

Malware Config

Signatures

Cobalt Strike reflective loader 1 IoCs

Detects the reflective loader used by Cobalt Strike.

resource	yara_rule
static1/unpack001/bb1b78dde7ed41a8f18420e4508d3d80747ad7982a43d9a3911db9b45d28a348	cobalt_reflective_dll

Cobaltstrike family
cobaltstrike

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/bb1b78dde7ed41a8f18420e4508d3d80747ad7982a43d9a3911db9b45d28a348

Files

bb1b78dde7ed41a8f18420e4508d3d80747ad7982a43d9a3911db9b45d28a348.zip
.zip

Password: infected
bb1b78dde7ed41a8f18420e4508d3d80747ad7982a43d9a3911db9b45d28a348
.dll windows:5 windows x86 arch:x86

Password: infected

e1b2f647f772fad2f50db0410e9d0324

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
IMAGE_FILE_BYTES_REVERSED_HI

Imports

advapi32

LookupAccountSidA
OpenThreadToken
CryptReleaseContext
CryptAcquireContextA
CryptGenRandom
LogonUserA
CheckTokenMembership
FreeSid
RevertToSelf
AllocateAndInitializeSid
DuplicateTokenEx
OpenProcessToken
GetTokenInformation
GetUserNameA
CreateProcessWithTokenW
CreateProcessWithLogonW
CreateProcessAsUserA
AdjustTokenPrivileges
ImpersonateNamedPipeClient
ImpersonateLoggedOnUser
LookupPrivilegeValueA

kernel32

CreateNamedPipeA
CreateProcessA
TerminateProcess
GetCurrentDirectoryW
GetFullPathNameA
SystemTimeToTzSpecificLocalTime
GetLogicalDrives
ExpandEnvironmentStringsA
GetFileAttributesA
FileTimeToSystemTime
FindFirstFileA
CopyFileA
FindClose
MoveFileA
FindNextFileA
GetCurrentProcessId
Thread32First
Thread32Next
CreateToolhelp32Snapshot
CreateThread
SetLastError
GetVersionExA
VirtualAlloc
VirtualProtect
CreateFileA
PeekNamedPipe
WaitNamedPipeA
SetNamedPipeHandleState
GetComputerNameA
GetACP
GetModuleFileNameA
GetOEMCP
GetProcessHeap
SetErrorMode
ProcessIdToSessionId
Process32First
Process32Next
GetComputerNameExA
GetThreadContext
SetThreadContext
MapViewOfFile
UnmapViewOfFile
VirtualQuery
VirtualFree
CreateRemoteThread
ReadFile
ReadProcessMemory
VirtualProtectEx
VirtualAllocEx
OpenThread
CreateFileMappingA
DuplicateHandle
CloseHandle
WriteProcessMemory
ResumeThread
ExitProcess
ExitThread
GetCurrentThread
ConnectNamedPipe
GetCurrentProcess
GetCurrentDirectoryA
CreatePipe
GetLocalTime
GetStartupInfoA
SetCurrentDirectoryA
FlushFileBuffers
DisconnectNamedPipe
MultiByteToWideChar
WriteFile
GetTickCount
WaitForSingleObject
Sleep
GetModuleHandleA
LoadLibraryA
GetProcAddress
GetLastError
DebugBreak
RaiseException
GetModuleFileNameW
SetEnvironmentVariableW
HeapCreate
HeapDestroy
HeapFree
SetEnvironmentVariableA
CompareStringW
CompareStringA
SetEndOfFile
GetStringTypeW
GetStringTypeA
SetStdHandle
WriteConsoleW
GetConsoleOutputCP
WriteConsoleA
GetLocaleInfoA
HeapSize
QueryPerformanceCounter
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetEnvironmentStrings
FreeEnvironmentStringsA
LCMapStringW
LCMapStringA
IsValidCodePage
GetCPInfo
SetFilePointer
GetFileType
SetHandleCount
GetConsoleMode
HeapAlloc
OpenProcess
FreeLibrary
GetModuleHandleW
DeleteFileA
CreateDirectoryA
RemoveDirectoryA
GetSystemTimeAsFileTime
HeapReAlloc
GetCurrentThreadId
GetCommandLineA
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
GetStdHandle
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
TlsGetValue
TlsAlloc
TlsSetValue
TlsFree
InterlockedIncrement
InterlockedDecrement
InitializeCriticalSectionAndSpinCount
RtlUnwind
WideCharToMultiByte
GetConsoleCP

kernelbase

DeleteProcThreadAttributeList
InitializeProcThreadAttributeList
UpdateProcThreadAttribute

wininet

InternetReadFile
InternetConnectA
InternetQueryDataAvailable
InternetSetOptionA
HttpOpenRequestA
HttpAddRequestHeadersA
InternetSetStatusCallback
HttpSendRequestA
InternetOpenA
InternetCloseHandle
InternetQueryOptionA
HttpQueryInfoA

ws2_32

htons
connect
socket
gethostbyname
send
WSAIoctl
recv
WSACleanup
closesocket
WSASocketA
htonl
htons
htonl
shutdown
WSAGetLastError
ioctlsocket
accept
listen
__WSAFDIsSet
bind
sendto
select
inet_addr

Sections

.text
Size: 164KB - Virtual size: 164KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 39KB - Virtual size: 39KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 28KB - Virtual size: 60KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Password: infected

Password: infected

e1b2f647f772fad2f50db0410e9d0324

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

kernel32

kernelbase

wininet

ws2_32

Sections

.text Size: 164KB - Virtual size: 164KB

.rdata Size: 39KB - Virtual size: 39KB

.data Size: 28KB - Virtual size: 60KB

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

.text
Size: 164KB - Virtual size: 164KB

.rdata
Size: 39KB - Virtual size: 39KB

.data
Size: 28KB - Virtual size: 60KB

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