cobaltstrike | 52795c8ed5c9c598e6bc9908c3d033029b4d62194ced6b7876288696f779f6bf[.]zip

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General

Target
52795c8ed5c9c598e6bc9908c3d033029b4d62194ced6b7876288696f779f6bf.zip
Size 278KB
Sample260916-r8r2escn2s
SHA256 0724704833bffa932d78dd581dbeeb67bb79fd224e8fa41322227f25b9090d54
MD5 0c298e30f0eb2c0c9eea3f91311ccf14
SHA1 196c85700427144aa18e43c95bd60763c92299e2
SHA512 cfbba4ea60b9d6c83d54c52d7e5aa9bee1616e2a11d96ee40b86258b005a693529ce0f9d2ad382d3ebe872b4ea711de2f3e13ea794a9b6656be72fc271ef837d
SSDEEP 6144:Rg7tE0+m0riaAd5nJA+rR+RJVKTpJYlDBiJDkZIpsc:mJ+7raDRAJVkpOiJLpsc
TLSH
T1F8542333DAEEC194770CBDE9204D71640119267B17E6723F4F0F6A4BA964C7AE3199B0
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,ns8.softline.top,ns9.softline.top
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/unpack001/52795c8ed5c9c598e6bc9908c3d033029b4d62194ced6b7876288696f779f6bf	cobalt_reflective_dll

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/52795c8ed5c9c598e6bc9908c3d033029b4d62194ced6b7876288696f779f6bf

File Explorer

52795c8ed5c9c598e6bc9908c3d033029b4d62194ced6b7876288696f779f6bf.zip

.zip 278KB
52795c8ed5c9c598e6bc9908c3d033029b4d62194ced6b7876288696f779f6bf

.dll 431KB

52795c8ed5c9c598e6bc9908c3d033029b4d62194ced6b7876288696f779f6bf.zip

SHA256 0724704833bffa932d78dd581dbeeb67bb79fd224e8fa41322227f25b9090d54
MD5 0c298e30f0eb2c0c9eea3f91311ccf14
SHA1 196c85700427144aa18e43c95bd60763c92299e2
SHA512 cfbba4ea60b9d6c83d54c52d7e5aa9bee1616e2a11d96ee40b86258b005a693529ce0f9d2ad382d3ebe872b4ea711de2f3e13ea794a9b6656be72fc271ef837d
SSDEEP 6144:Rg7tE0+m0riaAd5nJA+rR+RJVKTpJYlDBiJDkZIpsc:mJ+7raDRAJVkpOiJLpsc
TLSH
T1F8542333DAEEC194770CBDE9204D71640119267B17E6723F4F0F6A4BA964C7AE3199B0
MD5 SHA1 SHA512 SSDEEP TLSH

Password

infected

52795c8ed5c9c598e6bc9908c3d033029b4d62194ced6b7876288696f779f6bf

IMPHASH f2e0b7b9a08bd8dcaf133d9278ecdb47
SHA256 52795c8ed5c9c598e6bc9908c3d033029b4d62194ced6b7876288696f779f6bf
MD5 9454036e41f63c9a1bf10d017340c5de
SHA1 e7ed66193b0f088db5474184958ce398994c7768
SHA512 a549bc7d2c35b981035780ae66700b84146d5f6e3ae338e8294e18d97786f756b3c8a19aa7f3262cc1fd67430010d5144042804d9b293dbc396a0f4a2e0fca27
SSDEEP 6144:PjdFKdoSxvixTxUAqdxbBhcU5xlP02x8gxPIrWNSNwNz4Pdsu1MPRLhFM:jhGvixUA0bB11Pb7pIRNiIdp1SM
TLSH
T15C94E0613585D037D05B0078524F877E5BBCBDF412729883FB845EAAAE75793EB2A203
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