Behavioral task
behavioral1
Sample
rundll3.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
rundll3.exe
Resource
win10v2004-20240709-en
General
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Target
rundll3.exe
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Size
5.6MB
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MD5
be8e765b8622989c5e4aa6414c2b030c
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SHA1
b6cb7f1ffcceff8fbe572594ffc6aa515420e0a0
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SHA256
6fdb160c3b7a5813f187afd606ef2e24cfde0e66e3a0663ce65cd1372fdc32ab
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SHA512
e0522301c8d2c156fe6157d7d1ca3a305078ed35bd3a2cf1131bea2a97246eaa8e00751cb4ad9c63e26d97149bdf5898da6d443d8c224735c81589462bd571ad
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SSDEEP
49152:YfPM6fbpCpuj2TCOHIiRO06E6M5UqdJtunHnVnzm5EatXXzihWGNggHL/rF2tZVb:GpRY2IEfm
Malware Config
Signatures
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Detects Windows variants of RansomHub Ransomware 1 IoCs
resource yara_rule sample RansomHub_Windows -
Ransomhub family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource rundll3.exe
Files
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rundll3.exe.exe windows:6 windows x64 arch:x64
Password: 001372024d66
f0ea7b7844bbc5bfa9bb32efdcea957c
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED
Imports
kernel32
WriteFile
WriteConsoleW
WaitForMultipleObjects
WaitForSingleObject
VirtualQuery
VirtualFree
VirtualAlloc
TlsAlloc
SwitchToThread
SuspendThread
SetWaitableTimer
SetUnhandledExceptionFilter
SetProcessPriorityBoost
SetEvent
SetErrorMode
SetConsoleCtrlHandler
ResumeThread
PostQueuedCompletionStatus
LoadLibraryA
LoadLibraryW
SetThreadContext
GetThreadContext
GetSystemInfo
GetSystemDirectoryA
GetStdHandle
GetQueuedCompletionStatusEx
GetProcessAffinityMask
GetProcAddress
GetEnvironmentStringsW
GetConsoleMode
FreeEnvironmentStringsW
ExitProcess
DuplicateHandle
CreateWaitableTimerExW
CreateThread
CreateIoCompletionPort
CreateFileA
CreateEventA
CloseHandle
AddVectoredExceptionHandler
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 2.3MB - Virtual size: 2.3MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 144KB - Virtual size: 510KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 53KB - Virtual size: 52KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.symtab Size: 512B - Virtual size: 4B
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ