Loader
Static task
static1
Behavioral task
behavioral1
Sample
AvastAuth._decrypt.dll
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
AvastAuth._decrypt.dll
Resource
win10-en-20211208
Behavioral task
behavioral3
Sample
AvastAuth._decrypt.dll
Resource
win10v2004-en-20220112
General
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Target
AvastAuth._decrypt.dat
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Size
162KB
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MD5
adbc1eaaecab410501ea4b2a35f6231a
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SHA1
cca00de2a97c7aae8b9cdffa5379b698d56280f8
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SHA256
6cdd1ef4cccca8c8fc80264eb0bf999cc80857a099a0037b14105b678a9368d3
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SHA512
84e909dabd4f620197b7cea7c4cd9517df2bfc61699e366a408ecd7105e825018bbebac0791e8ff308c53a4da7d29a226ea5f616f82e85f238b74c93cecf094f
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SSDEEP
3072:27jswmZp8ZNJ/TjnliUAMnn+L8iNlwC6lvRhvF7:Qjs7ZexTjnlFAc+L8WwN7
Malware Config
Extracted
plugx
㡔ㅬ㍧㕱㝒㥳㉖㑙㙛㡸ㅶ㍽㕆㝆㥓㉤㑶㙟㡿ㅉ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄸ㊉
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folder
㙴㡁ㅘ㍁㕀㝥㥎㉒㑃㙶㡧ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㡔ㅬ㍧㕱㝒㥳㉖㑙㙛㡸ㅶ㍽㕆㝆㥓㉤㑶㙟㡿ㅉ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄹ㌲㔴㜶㤸㈱㐳㘵㠷ㄸ㊉
Signatures
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Plugx family
Files
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AvastAuth._decrypt.dat.dll windows x86
5f58fa48f820abe26945152001e1b19a
Code Sign
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
GetProcAddress
LoadLibraryA
ExitProcess
SetUnhandledExceptionFilter
SetFileAttributesW
FileTimeToSystemTime
CloseHandle
GetStdHandle
Sleep
HeapAlloc
GetProcessHeap
DeviceIoControl
FindFirstVolumeW
FindNextVolumeW
FindVolumeClose
WideCharToMultiByte
WriteConsoleW
SetFilePointerEx
SetStdHandle
GetLastError
HeapFree
GetSystemTimeAsFileTime
GetCommandLineA
GetCurrentThreadId
EncodePointer
DecodePointer
GetModuleHandleExW
MultiByteToWideChar
WriteFile
GetModuleFileNameW
IsProcessorFeaturePresent
SetLastError
IsDebuggerPresent
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetFileType
DeleteCriticalSection
GetStartupInfoW
GetModuleFileNameA
QueryPerformanceCounter
GetCurrentProcessId
GetEnvironmentStringsW
FreeEnvironmentStringsW
UnhandledExceptionFilter
InitializeCriticalSectionAndSpinCount
GetCurrentProcess
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetModuleHandleW
EnterCriticalSection
LeaveCriticalSection
LoadLibraryExW
OutputDebugStringW
GetStringTypeW
LCMapStringW
RtlUnwind
HeapReAlloc
HeapSize
FlushFileBuffers
GetConsoleCP
GetConsoleMode
CreateFileW
user32
wsprintfW
wsprintfA
Exports
Exports
Sections
.text Size: 129KB - Virtual size: 128KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 20KB - Virtual size: 19KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 6KB - Virtual size: 54KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 6KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ