_ReflectiveLoader@4
Behavioral task
behavioral1
Sample
c4ca804321608d2b5f6bc99902969f91_cobalt-strike_cobaltstrike_JC.dll
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
c4ca804321608d2b5f6bc99902969f91_cobalt-strike_cobaltstrike_JC.dll
Resource
win10v2004-20230703-en
General
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Target
c4ca804321608d2b5f6bc99902969f91_cobalt-strike_cobaltstrike_JC.exe
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Size
208KB
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MD5
c4ca804321608d2b5f6bc99902969f91
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SHA1
647303fa86c91d812706ecaba7b80793c7984faa
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SHA256
427e057ff2831e74919e7079efcd4a5ac47e05e6085e0a09e33292b3b3845e5d
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SHA512
f6d2335caad4005334664acd9b714deefc261601999f88d1f73cda62f69498c05fc3d3556989563a90d47957884cbe54d44da1a1a35dae175e7575fa7fe2c810
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SSDEEP
3072:cI6CqRCxffkClZ8Ccn7LQlRw6x+Y3CxT2DtK5jdU0fE7Y5m:cIDff9D8C6XYRw6MT2DEjbs
Malware Config
Extracted
cobaltstrike
100000
http://207.244.234.206:443/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
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access_type
512
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beacon_type
2048
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host
207.244.234.206,/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books
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http_header1
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http_header2
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http_method1
GET
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http_method2
POST
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jitter
7680
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polling_time
10000
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port_number
443
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sc_process32
C:\Windows\SysWOW64\dllhost.exe
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sc_process64
C:\Windows\System32\dllhost.exe
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state_machine
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCobS7V/2oSSOu3X66eSskC07B1tmzJgmekNfMsp/ud4Fcej06gUyCzwVzwL8D0hnBN84MyCDqXEhJxZoINNyz3qLzT7f/nzUQ51lqIGaFlfJS0/hqB1HGRVHUUsFe2pZRUpZ2UNPRYnY3AKIlYU3DmZB/M2phJpN+in/W/R4OZ8QIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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unknown1
2.68439552e+08
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unknown2
AAAABAAAAA8AAAACAAAADAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
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uri
/N4215/adj/amzn.us.sr.aps
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user_agent
Mozilla/6.0 (Windows 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/99.0
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watermark
100000
Signatures
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Cobaltstrike family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource c4ca804321608d2b5f6bc99902969f91_cobalt-strike_cobaltstrike_JC.exe
Files
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c4ca804321608d2b5f6bc99902969f91_cobalt-strike_cobaltstrike_JC.exe.dll windows x86
cef0a8b67e0adea9dbc532568c79bb24
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL
IMAGE_FILE_BYTES_REVERSED_HI
Imports
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
Exports
Exports
Sections
.text Size: 151KB - Virtual size: 150KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 39KB - Virtual size: 39KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 8KB - Virtual size: 41KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 8KB - Virtual size: 7KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ