cobaltstrike | e9e377c1bfa16a8747b7bbbb8b082f59708ebc83fc833cf5136b1beaff9500a9

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General

Target
e9e377c1bfa16a8747b7bbbb8b082f59708ebc83fc833cf5136b1beaff9500a9
Size 112KB
Sample240801-gyd2pswcpl
SHA256 e9e377c1bfa16a8747b7bbbb8b082f59708ebc83fc833cf5136b1beaff9500a9
MD5 706f811ddca8ae1f9c07bc0b7e46bf9c
SHA1 53a7a91d85cecbbc9d8aac317f387dc24c4063e9
SHA512 ad421e7973ad334df9e722ff6cad77a192116e87fcc46dbec794d32be354aa35bdd51bcb9010644aa834b7bfe7223b42d8f2608ef834b1ad5bb773c2d2a87e96
SSDEEP 3072:bQBmvFRxXZL+4HGqka3Q9yUt8RuZPhEJWU+SWPeqaH:bQmbxJxHscUtkMEV5WPA
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

100000 cobaltstrike

Malware Config

Extracted

Family

cobaltstrike

Botnet

100000

http://192.34.56.177:80/activity

Attributes

access_type
512
host
192.34.56.177,/activity
http_header1
AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_header2
AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
http_method1
GET
http_method2
POST
polling_time
60000
port_number
80
sc_process32
%windir%\syswow64\rundll32.exe
sc_process64
%windir%\sysnative\rundll32.exe
state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDhw/moQ0VdyB56chcMLnDtUhv1UVM03XjgzN/oDf0LQsMcu+MMxmZr9HDUiK7XGswd6zX49j/Uu3CBnLBykLhefJFzZlH6ORRDAELHOc9oOsdRwWjxBYcPgGhXp1tNUcJEadPAxRYj7CQKLqdOQ3TZKEYWR7mGQWGrtK5BKlzAzQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
unknown1
4096
unknown2
AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
uri
/submit.php
user_agent
Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; MANM; MANM)
watermark
100000

Signatures

Cobalt Strike reflective loader 1 IoCs

Detects the reflective loader used by Cobalt Strike.

resource	yara_rule
static1/unpack001/7c8026b68c6ab034bb1b5d8fcb80fcde13f0cf77d99c0d88003455c538efdf54	cobalt_reflective_dll

Cobaltstrike family
cobaltstrike

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/7c8026b68c6ab034bb1b5d8fcb80fcde13f0cf77d99c0d88003455c538efdf54

File Explorer

e9e377c1bfa16a8747b7bbbb8b082f59708ebc83fc833cf5136b1beaff9500a9

.zip 112KB
7c8026b68c6ab034bb1b5d8fcb80fcde13f0cf77d99c0d88003455c538efdf54

.dll 208KB

e9e377c1bfa16a8747b7bbbb8b082f59708ebc83fc833cf5136b1beaff9500a9

SHA256 e9e377c1bfa16a8747b7bbbb8b082f59708ebc83fc833cf5136b1beaff9500a9
MD5 706f811ddca8ae1f9c07bc0b7e46bf9c
SHA1 53a7a91d85cecbbc9d8aac317f387dc24c4063e9
SHA512 ad421e7973ad334df9e722ff6cad77a192116e87fcc46dbec794d32be354aa35bdd51bcb9010644aa834b7bfe7223b42d8f2608ef834b1ad5bb773c2d2a87e96
SSDEEP 3072:bQBmvFRxXZL+4HGqka3Q9yUt8RuZPhEJWU+SWPeqaH:bQmbxJxHscUtkMEV5WPA
MD5 SHA1 SHA512 SSDEEP

Password

infected

7c8026b68c6ab034bb1b5d8fcb80fcde13f0cf77d99c0d88003455c538efdf54

IMPHASH cef0a8b67e0adea9dbc532568c79bb24
SHA256 7c8026b68c6ab034bb1b5d8fcb80fcde13f0cf77d99c0d88003455c538efdf54
MD5 bf41a992d08ffa88be86142a6dd76c32
SHA1 76034b68f30be719457ddbbe623b2b9145bb623a
SHA512 d8a5d6bb5a4794dac817c2302a3722e056fd45bbd54c44244ab32949fe3c08ede5a7fdd93b048736b45218d6d5fa710379fe972f9bef3c6cc6439efffe108704
SSDEEP 3072:LI6CqRCxffkClZ8Ccn7LQlRw6x+Y3CxT2DtK5jdUZY5u: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.

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