medusalocker | 2023-08-26_821d0098dfec5bdf9df9fc1a41f36288_cobalt-strike_medusa-locker_JC[.]exe

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General

Target

2023-08-26_821d0098dfec5bdf9df9fc1a41f36288_cobalt-strike_medusa-locker_JC.exe
Size

696KB
MD5

821d0098dfec5bdf9df9fc1a41f36288
SHA1

c788008e0e77331103a273ca03b14c046a985c58
SHA256

704381fe2d234c45355135639671982d9c592662ef1e6263db78d2aadd7e8eb8
SHA512

1529f13d861b770c943760c4e87cc05513fe2e48aa44d62bdfab1c2874b28b38711ff167ccd43fe75af74ef65cd8c7a42cc37841f5f12b3049c3cc50813348e2
SSDEEP

12288:7gOdT+TaehsYiqyxab+CG0ZehJ6D7QsfS+I6cQbjXSktbdcmEkWgtoM7:XK2MTxyxab+CG0ZAxeXS+cXtM

Score

10^/10

medusalocker

Malware Config

Signatures

MedusaLocker payload 1 IoCs

Processes:

resource yara_rule

sample family_medusalocker
Medusalocker family
medusalocker

resource	yara_rule
sample	family_medusalocker

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

Processes:

resource
2023-08-26_821d0098dfec5bdf9df9fc1a41f36288_cobalt-strike_medusa-locker_JC.exe

Files

2023-08-26_821d0098dfec5bdf9df9fc1a41f36288_cobalt-strike_medusa-locker_JC.exe
.exe windows x86

f2a8a842c869f344b4d75729bc60feed

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

Process32NextW
Process32FirstW
CreateProcessW
GetTickCount
CopyFileW
GetCurrentProcess
WriteConsoleW
CreateToolhelp32Snapshot
OpenProcess
WaitForSingleObject
TerminateProcess
FindClose
FindNextVolumeW
GetVolumePathNamesForVolumeNameW
FindVolumeClose
SetVolumeMountPointW
FindFirstVolumeW
QueryDosDeviceW
GetEnvironmentVariableW
GetLogicalDrives
GetProcessHeap
MoveFileExW
SetFilePointerEx
HeapAlloc
CloseHandle
GetLastError
SetFileAttributesW
GetFileAttributesW
CreateFileW
WriteFile
HeapSize
GetConsoleMode
GetConsoleCP
FlushFileBuffers
SetStdHandle
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetOEMCP
GetACP
IsValidCodePage
GetFileType
HeapReAlloc
GetTimeZoneInformation
EnumSystemLocalesW
GetUserDefaultLCID
HeapFree
GetFileSizeEx
IsValidLocale
GetTimeFormatW
GetDateFormatW
GetStdHandle
ReadFile
OpenMutexW
Sleep
CreateMutexW
GetModuleFileNameW
SetEnvironmentVariableW
EncodePointer
DecodePointer
RaiseException
GetCurrentThreadId
IsProcessorFeaturePresent
QueueUserWorkItem
GetModuleHandleExW
EnterCriticalSection
LeaveCriticalSection
TryEnterCriticalSection
DeleteCriticalSection
FormatMessageW
WideCharToMultiByte
QueryPerformanceCounter
MultiByteToWideChar
FindFirstFileExW
FindNextFileW
GetFileAttributesExW
SetLastError
InitializeCriticalSectionAndSpinCount
CreateEventW
SwitchToThread
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetSystemTimeAsFileTime
GetModuleHandleW
GetProcAddress
DuplicateHandle
WaitForSingleObjectEx
GetCurrentThread
GetStringTypeW
CompareStringW
LCMapStringW
GetLocaleInfoW
GetCPInfo
SetEvent
ResetEvent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
GetStartupInfoW
GetCurrentProcessId
InitializeSListHead
LocalFree
CreateTimerQueue
SignalObjectAndWait
CreateThread
SetThreadPriority
GetThreadPriority
GetLogicalProcessorInformation
CreateTimerQueueTimer
ChangeTimerQueueTimer
DeleteTimerQueueTimer
GetNumaHighestNodeNumber
GetProcessAffinityMask
SetThreadAffinityMask
RegisterWaitForSingleObject
UnregisterWait
GetThreadTimes
FreeLibrary
FreeLibraryAndExitThread
GetModuleHandleA
LoadLibraryExW
GetVersionExW
VirtualAlloc
VirtualProtect
VirtualFree
ReleaseSemaphore
InterlockedPopEntrySList
InterlockedPushEntrySList
InterlockedFlushSList
QueryDepthSList
UnregisterWaitEx
LoadLibraryW
RtlUnwind
ExitProcess

advapi32

CryptExportKey
RegCreateKeyW
RegOpenKeyExW
RegSetValueExW
RegCloseKey
CryptReleaseContext
CryptGenKey
CryptImportKey
OpenProcessToken
GetTokenInformation
CloseServiceHandle
OpenSCManagerW
DeleteService
ControlService
EnumDependentServicesW
OpenServiceW
QueryServiceStatusEx
CryptDestroyKey
CryptAcquireContextW
CryptEncrypt
CryptDuplicateKey
RegDeleteValueW

shell32

SHEmptyRecycleBinW

ole32

CLSIDFromString
IIDFromString
CoInitializeEx
CoGetObject
CoInitialize
CoUninitialize
CoCreateInstance
CoInitializeSecurity

oleaut32

SysAllocStringByteLen
VariantClear
SysAllocString
SysStringByteLen
VariantInit
SysFreeString

crypt32

CryptStringToBinaryA

mpr

WNetGetConnectionW

netapi32

NetApiBufferFree
NetShareEnum

iphlpapi

IcmpSendEcho
IcmpCloseHandle
GetAdaptersInfo
IcmpCreateFile

ws2_32

inet_addr

rstrtmgr

RmShutdown
RmRegisterResources
RmStartSession
RmGetList
RmEndSession

Sections

.text
Size: 464KB - Virtual size: 460KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 180KB - Virtual size: 178KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 20KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 4KB - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 24KB - Virtual size: 23KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f2a8a842c869f344b4d75729bc60feed

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

shell32

ole32

oleaut32

crypt32

mpr

netapi32

iphlpapi

ws2_32

rstrtmgr

Sections

.text Size: 464KB - Virtual size: 460KB

.rdata Size: 180KB - Virtual size: 178KB

.data Size: 20KB - Virtual size: 18KB

.rsrc Size: 4KB - Virtual size: 480B

.reloc Size: 24KB - Virtual size: 23KB

.text
Size: 464KB - Virtual size: 460KB

.rdata
Size: 180KB - Virtual size: 178KB

.data
Size: 20KB - Virtual size: 18KB

.rsrc
Size: 4KB - Virtual size: 480B

.reloc
Size: 24KB - Virtual size: 23KB