cobaltstrike | 05ec4d4ae2f901acc481eeae2ee23ac7d6ec4cd72c8d7596afe11f46dafe415f[.]zip

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General

Target
05ec4d4ae2f901acc481eeae2ee23ac7d6ec4cd72c8d7596afe11f46dafe415f.zip
Size 112KB
Sample240817-kcrmfsweqe
SHA256 2a5079f27413e64bf0c28f4879509f8ea3a4ac018efe3c5db3411a998928d8b9
MD5 f6ed4931296f9914b41793c225a6fe04
SHA1 25be523da189817a20b80386bd6ce5a33446b47e
SHA512 2f03269a3accb46fb5cf56f185ee705ec6058613fc191c94070ee61079df12e344a70ce63f40f7a2f40016589f99e5287aa91a42b099d778e901d52aa2bd8c0c
SSDEEP 3072:cFaKskfeH4HeOtGpg/GwGFn+Lu4dwpThX6nTndlpAqlF:cdf+4HeaBoMHIX6Tndl5D
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

100000 cobaltstrike

Malware Config

Extracted

Family

cobaltstrike

Botnet

100000

http://24.144.108.207:8080/updates.rss

Attributes

access_type
512
host
24.144.108.207,/updates.rss
http_header1
AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_header2
AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_method1
GET
http_method2
POST
polling_time
60000
port_number
8080
sc_process32
%windir%\syswow64\rundll32.exe
sc_process64
%windir%\sysnative\rundll32.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC/7vk3pqzQLQyGB7HGcnWjbWnwqeq/3TPoIuAqqtyWu68BaM9eTAhZ2i6qmSSJzhmIu0NBJ4wAj44+8zW88IzzKbPj7Ad5kW9qI1XdCJgAEc63+V26MxZ6yvS28sO6nJyxyPplarW4fpg/whgpd4NBaNi9fOIJes9bOCbjWGLV3wIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
4096
unknown2
AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/submit.php
user_agent
Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; UHS)
watermark
100000

Signatures

Cobalt Strike reflective loader 1 IoCs

Detects the reflective loader used by Cobalt Strike.

resource	yara_rule
static1/unpack001/05ec4d4ae2f901acc481eeae2ee23ac7d6ec4cd72c8d7596afe11f46dafe415f	cobalt_reflective_dll

Cobaltstrike family
cobaltstrike

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/05ec4d4ae2f901acc481eeae2ee23ac7d6ec4cd72c8d7596afe11f46dafe415f

File Explorer

05ec4d4ae2f901acc481eeae2ee23ac7d6ec4cd72c8d7596afe11f46dafe415f.zip

.zip 112KB
05ec4d4ae2f901acc481eeae2ee23ac7d6ec4cd72c8d7596afe11f46dafe415f

.dll 208KB

05ec4d4ae2f901acc481eeae2ee23ac7d6ec4cd72c8d7596afe11f46dafe415f.zip

SHA256 2a5079f27413e64bf0c28f4879509f8ea3a4ac018efe3c5db3411a998928d8b9
MD5 f6ed4931296f9914b41793c225a6fe04
SHA1 25be523da189817a20b80386bd6ce5a33446b47e
SHA512 2f03269a3accb46fb5cf56f185ee705ec6058613fc191c94070ee61079df12e344a70ce63f40f7a2f40016589f99e5287aa91a42b099d778e901d52aa2bd8c0c
SSDEEP 3072:cFaKskfeH4HeOtGpg/GwGFn+Lu4dwpThX6nTndlpAqlF:cdf+4HeaBoMHIX6Tndl5D
MD5 SHA1 SHA512 SSDEEP

Password

infected

05ec4d4ae2f901acc481eeae2ee23ac7d6ec4cd72c8d7596afe11f46dafe415f

IMPHASH cef0a8b67e0adea9dbc532568c79bb24
SHA256 05ec4d4ae2f901acc481eeae2ee23ac7d6ec4cd72c8d7596afe11f46dafe415f
MD5 c059c38c20e7ab1e5474fc5ace8826e4
SHA1 1ce1b9dcf47930fee83cb844ac0bbb29606fe107
SHA512 020d29adbb9f2e2a27568287966d8d2a1cbb63bc2173acb152473978e898cfec7d7d4fe62838242f3d23b5f20531b8088930cb712ec092a6de84ff3eae69522b
SSDEEP 3072:LI6CqRCxffkClZ8Ccn7LQlRw6x+Y3CxT2DtK5jdUcY5is:LIDff9D8C6XYRw6MT2DEj
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x86 arch:x86

Cobalt Strike reflective loader

Detects the reflective loader used by Cobalt Strike.
Unsigned PE

Checks for missing Authenticode signature.

Password

infected

Minor OS version

Major OS version

Entry point

93381

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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 OpenProcess GetCurrentProcessId Thread32First Thread32Next VirtualAllocEx OpenThread CreateToolhelp32Snapshot CreateThread CreateRemoteThread SetThreadContext MapViewOfFile UnmapViewOfFile CreateFileMappingA VirtualProtect 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 SetEnvironmentVariableW GetModuleFileNameW LoadLibraryA VirtualAlloc GetProcAddress SetEnvironmentVariableA CompareStringW CompareStringA SetEndOfFile GetStringTypeW GetStringTypeA LCMapStringW LCMapStringA SetStdHandle WriteConsoleW GetConsoleOutputCP WriteConsoleA GetLocaleInfoA HeapSize IsValidCodePage GetCPInfo QueryPerformanceCounter GetEnvironmentStringsW FreeEnvironmentStringsW GetEnvironmentStrings FreeEnvironmentStringsA SetFilePointer VirtualFree HeapFree FreeLibrary GetModuleHandleW DeleteFileA CreateDirectoryA RemoveDirectoryA GetSystemTimeAsFileTime HeapReAlloc GetCurrentThreadId GetCommandLineA HeapCreate HeapDestroy DeleteCriticalSection LeaveCriticalSection EnterCriticalSection GetStdHandle UnhandledExceptionFilter SetUnhandledExceptionFilter IsDebuggerPresent TlsGetValue TlsAlloc TlsSetValue TlsFree InterlockedIncrement InterlockedDecrement InitializeCriticalSectionAndSpinCount RtlUnwind WideCharToMultiByte GetConsoleCP GetConsoleMode SetHandleCount GetFileType

advapi32

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

wininet

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

ws2_32

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