cobaltstrike | cae9481dbf50fa4d7766c456aff23016dfd24d4233668b906cd7e1b8562f5677

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General

Target
cae9481dbf50fa4d7766c456aff23016dfd24d4233668b906cd7e1b8562f5677
Size 205KB
Sample230813-gn455shd65
SHA256 cae9481dbf50fa4d7766c456aff23016dfd24d4233668b906cd7e1b8562f5677
MD5 f2fc84502b6b57bdf777e3c984a26588
SHA1 b0d4d4a96ada7049dbd8dc03487ea97a5f84b20d
SHA512 5244c2bc02795543efa9493f8a823fc74ac56057c56d2cbe4009118e74e32748cd481bd1a238870c4e9db5b6d515c2361bbf12e73ae027e60a49631507a0a89c
SSDEEP 3072:v/QPFX1eqEfuBNSYuiM8CDj8hFsoMX0ghsJRgCD3iFw9jdUs5H:v/MEfuN0t8C/oFsoeRM3o0jd
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

1 cobaltstrike

Malware Config

Extracted

Family

cobaltstrike

Botnet

http://149.129.72.37:8142/ptj

Attributes

access_type
512
beacon_type
2048
host
149.129.72.37,/ptj
http_header1
AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_header2
AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_method1
GET
http_method2
POST
polling_time
60000
port_number
8142
sc_process32
%windir%\syswow64\rundll32.exe
sc_process64
%windir%\sysnative\rundll32.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDS/rlJeDQ7fUDVPHwzoSY1aOE51RF8i623vgA9AHFXM7z6vMoxirPHKZf0HWm+EC+fLfMynKXpl5WvLDf1EtiIlkZA0YZTaSI7EEQV41+9j+TDw49WPrEAOSBvd7IWOf6Xx21yTbv5t8oOtslTAIRM46VJopviiaesKZTAhQdHhQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
4096
unknown2
AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/submit.php
user_agent
Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0; MASP)
watermark
1

Signatures

Cobalt Strike reflective loader 1 IoCs

Detects the reflective loader used by Cobalt Strike.

resource	yara_rule
sample	cobalt_reflective_dll

Cobaltstrike family
cobaltstrike

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
cae9481dbf50fa4d7766c456aff23016dfd24d4233668b906cd7e1b8562f5677

File Explorer

cae9481dbf50fa4d7766c456aff23016dfd24d4233668b906cd7e1b8562f5677

.dll 205KB

cae9481dbf50fa4d7766c456aff23016dfd24d4233668b906cd7e1b8562f5677

IMPHASH d78bb42be898a6d63b468b408da27a2b
SHA256 cae9481dbf50fa4d7766c456aff23016dfd24d4233668b906cd7e1b8562f5677
MD5 f2fc84502b6b57bdf777e3c984a26588
SHA1 b0d4d4a96ada7049dbd8dc03487ea97a5f84b20d
SHA512 5244c2bc02795543efa9493f8a823fc74ac56057c56d2cbe4009118e74e32748cd481bd1a238870c4e9db5b6d515c2361bbf12e73ae027e60a49631507a0a89c
SSDEEP 3072:v/QPFX1eqEfuBNSYuiM8CDj8hFsoMX0ghsJRgCD3iFw9jdUs5H:v/MEfuN0t8C/oFsoeRM3o0jd
MD5 SHA1 SHA512 SSDEEP

windows x86

Cobalt Strike reflective loader

Detects the reflective loader used by Cobalt Strike.
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

90618

Magic Number

267

Subsystem

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

PDB paths

kernel32

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

advapi32

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

wininet

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

ws2_32

closesocket send gethostname WSAStartup socket gethostbyname ntohl htons htonl connect ntohs recv shutdown WSAGetLastError ioctlsocket accept listen __WSAFDIsSet bind select WSACleanup