cobaltstrike | 441a650e9313bef398af451edd5f1cf5e695ef460a92e33185f0298b6fa735a6[.]zip

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General

Target
441a650e9313bef398af451edd5f1cf5e695ef460a92e33185f0298b6fa735a6.zip
Size 698KB
Sample260804-r7v2pace52
SHA256 6a3335588af3cc615d420e36e4046f5d46ac15c40c8dfe3fe974eee85d9ad4fe
MD5 9d9f8f5de371f02efa460f8a122fa1f8
SHA1 48d285153ce549c544f44cdb11fe0bba94ed37dd
SHA512 6e58c6d91dc079dde53b344970bbc3cb8853c087d779975f049b6de9258d37b0c2a3debf6a5cc273b873b8e33424e15d057c3b2fe68bbc76f4c1185ff835b78d
SSDEEP 12288:vIEr+4xBBQPe3m0H97pr6axaT4cp7RHHXsuCugJzOvbC:lrLxBBQ2lNp+axb6HnYzOzC
TLSH
T187E423B5C66BB7BFE40987674C8D0795430BEFF80612CE06878DAE8F05B6DA51407A9C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

0 trojan backdoor cobaltstrike

Malware Config

Extracted

Family

cobaltstrike

Botnet

http://ns7.softline.top:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
http://ns8.softline.top:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
http://ns9.softline.top:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books

Attributes

access_type
512
beacon_type
256
create_remote_thread
768
crypto_scheme
256
host
ns7.softline.top,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books,ns8.softline.top,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books,ns9.softline.top,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
http_header1
AAAACgAAAAtBY2NlcHQ6ICovKgAAAAoAAAAUSG9zdDogd3d3LmFtYXpvbi5jb20AAAAHAAAAAAAAAAMAAAACAAAADnNlc3Npb24tdG9rZW49AAAAAgAAAAxza2luPW5vc2tpbjsAAAABAAAALGNzbS1oaXQ9cy0yNEtVMTFCQjgyUlpTWUdKM0JES3wxNDE5ODk5MDEyOTk2AAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
http_header2
AAAACgAAAAtBY2NlcHQ6ICovKgAAAAoAAAAWQ29udGVudC1UeXBlOiB0ZXh0L3htbAAAAAoAAAAgWC1SZXF1ZXN0ZWQtV2l0aDogWE1MSHR0cFJlcXVlc3QAAAAKAAAAFEhvc3Q6IHd3dy5hbWF6b24uY29tAAAACQAAAApzej0xNjB4NjAwAAAACQAAABFvZT1vZT1JU08tODg1OS0xOwAAAAcAAAAAAAAABQAAAAJzbgAAAAkAAAAGcz0zNzE3AAAACQAAACJkY19yZWY9aHR0cCUzQSUyRiUyRnd3dy5hbWF6b24uY29tAAAABwAAAAEAAAADAAAABAAAAAAAAA==
http_method1
GET
http_method2
POST
maxdns
255
pipe_name
\\%s\pipe\msagent_%x
polling_time
5000
port_number
443
sc_process32
%windir%\syswow64\rundll32.exe
sc_process64
%windir%\sysnative\rundll32.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDI579oVVII0cYncGonU6vTWyFhqmq8w5QwvI8qsoWeV68Ngy+MjNPX2crcSVVWKQ3j09FII28KTmoE1XFVjEXF3WytRSlDe1OKfOAHX3XYkS9LcUAy0eRl2h4a73hrg1ir/rpisNT6hHtYaK3tmH8DgW/n1XfTfbWk1MZ7cXQHWQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
4096
unknown2
AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/N4215/adj/amzn.us.sr.aps
user_agent
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko
watermark
0

Signatures

Family: Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike

Cobalt Strike reflective loader 1 IoCs

Detects the reflective loader used by Cobalt Strike.

resource	yara_rule
static1/unpack001/441a650e9313bef398af451edd5f1cf5e695ef460a92e33185f0298b6fa735a6	cobalt_reflective_dll

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/441a650e9313bef398af451edd5f1cf5e695ef460a92e33185f0298b6fa735a6

File Explorer

441a650e9313bef398af451edd5f1cf5e695ef460a92e33185f0298b6fa735a6.zip

.zip 698KB
441a650e9313bef398af451edd5f1cf5e695ef460a92e33185f0298b6fa735a6

.dll 1009KB

441a650e9313bef398af451edd5f1cf5e695ef460a92e33185f0298b6fa735a6.zip

SHA256 6a3335588af3cc615d420e36e4046f5d46ac15c40c8dfe3fe974eee85d9ad4fe
MD5 9d9f8f5de371f02efa460f8a122fa1f8
SHA1 48d285153ce549c544f44cdb11fe0bba94ed37dd
SHA512 6e58c6d91dc079dde53b344970bbc3cb8853c087d779975f049b6de9258d37b0c2a3debf6a5cc273b873b8e33424e15d057c3b2fe68bbc76f4c1185ff835b78d
SSDEEP 12288:vIEr+4xBBQPe3m0H97pr6axaT4cp7RHHXsuCugJzOvbC:lrLxBBQ2lNp+axb6HnYzOzC
TLSH
T187E423B5C66BB7BFE40987674C8D0795430BEFF80612CE06878DAE8F05B6DA51407A9C
MD5 SHA1 SHA512 SSDEEP TLSH

Password

infected

441a650e9313bef398af451edd5f1cf5e695ef460a92e33185f0298b6fa735a6

IMPHASH f2e0b7b9a08bd8dcaf133d9278ecdb47
SHA256 441a650e9313bef398af451edd5f1cf5e695ef460a92e33185f0298b6fa735a6
MD5 2baf79e38759f77b987e24acd3a0394c
SHA1 fcb92a6866cc673eb80cb2022fc20cb9be1f06bb
SHA512 0a7622bdf1c92dabd343da9423e71727ee407fb57f55f09ae48151ca0c2855884f86301d3c4a956e022c4888390a990e6da285ac3a098398bca1360a69cfb8f0
SSDEEP 24576:jhGvGOvE6LfP9tZa6SVWH2jAovFNb4g+lUUWbt:jhWGOvLflW/vFNUTi
TLSH
T1BC25125269A4D43BD46B0174210F0B7F5BF9EEB40131A887EBC51DAA8F76353E62B312
MD5 SHA1 SHA512 SSDEEP TLSH

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

94033

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

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

advapi32

GetUserNameA CloseServiceHandle OpenProcessToken CreateProcessWithLogonW DeleteService CryptReleaseContext CryptAcquireContextA CryptGenRandom LogonUserA CheckTokenMembership FreeSid RevertToSelf AllocateAndInitializeSid DuplicateTokenEx LookupAccountSidA GetTokenInformation SetSecurityDescriptorDacl InitializeSecurityDescriptor CreateProcessAsUserA AdjustTokenPrivileges ControlService QueryServiceStatusEx ImpersonateNamedPipeClient ImpersonateLoggedOnUser LookupPrivilegeValueA OpenThreadToken OpenServiceA OpenSCManagerA QueryServiceStatus CreateProcessWithTokenW StartServiceA CreateServiceA

wininet

HttpQueryInfoA InternetConnectA InternetQueryDataAvailable InternetReadFile InternetSetOptionA HttpOpenRequestA HttpSendRequestA InternetCloseHandle InternetQueryOptionA InternetOpenA

ws2_32

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

dnsapi

DnsFree DnsQuery_A

iphlpapi

GetIfEntry GetIpAddrTable

secur32

LsaCallAuthenticationPackage LsaConnectUntrusted LsaLookupAuthenticationPackage