YandexPackLoader[.]exe

Sharing

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General

Target

YandexPackLoader.exe
Size

723KB
MD5

054c934e3442304f2e4aa7bfdaa8288b
SHA1

eb35dea060e90dd72b7ac7be7c89bb8710782ff2
SHA256

9afb532e3aad41d34225fd2ae57162165165dd9e425b3707fefe6d440a15b17c
SHA512

6962acd3dc2c8e2d8efd1ab253e41beae7fd22b73ac2ebd8fbfb046730ccd3bfd530b2e78d2c656f8d36e376867c9712e8b3bfb939fe4a0b10597c1a99792c84
SSDEEP

12288:FpRVkSsdsr7RnMzIWaHWljlR7UYIpsS8BNzVAbX3kW8jqZNpLwZb7Rx:FVkLSrNR2lj37B7qZIt

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
YandexPackLoader.exe

Files

YandexPackLoader.exe
.exe windows:5 windows x86 arch:x86

ac8beb10e1413f61c07800c88e18cf71

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

PDB Paths

C:\BuildAgent\work\4a73c29f3c4e6ac\downloader\Release\downloader.pdb

Imports

wtsapi32

WTSFreeMemory
WTSQuerySessionInformationW

secur32

LsaEnumerateLogonSessions
LsaFreeReturnBuffer
LsaGetLogonSessionData

wininet

InternetSetStatusCallbackA
InternetOpenA
InternetSetOptionA
InternetOpenUrlA
InternetCloseHandle

kernel32

SetEnvironmentVariableW
SizeofResource
LockResource
GlobalAlloc
GlobalFree
LoadResource
FindResourceW
GlobalLock
GetModuleHandleW
GlobalUnlock
GetUserDefaultLangID
GetGeoInfoW
GetModuleHandleA
GetUserGeoID
GetProcAddress
VerSetConditionMask
VerifyVersionInfoW
SetHandleInformation
GetCommandLineW
GetCurrentProcess
InterlockedDecrement
GetModuleFileNameW
WaitForSingleObject
GetVersionExW
Sleep
GetLastError
CloseHandle
GetCurrentProcessId
CreateProcessW
GetExitCodeProcess
CreateFileW
UnmapViewOfFile
CreateFileMappingW
MapViewOfFile
VirtualQuery
HeapFree
FindClose
DuplicateHandle
MultiByteToWideChar
OutputDebugStringW
HeapAlloc
GetProcessHeap
WideCharToMultiByte
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineA
GetOEMCP
IsValidCodePage
FindNextFileW
FindFirstFileExW
SetFilePointerEx
ReadFile
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetConsoleMode
EncodePointer
FlushFileBuffers
GetFileType
GetACP
WriteFile
GetStdHandle
GetModuleHandleExW
ExitProcess
HeapReAlloc
LoadLibraryExW
RtlUnwind
LocalFree
InitializeSListHead
GetCurrentThreadId
QueryPerformanceCounter
GetStartupInfoW
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
WaitForSingleObjectEx
ResetEvent
SetStdHandle
WriteConsoleW
ReadConsoleW
HeapSize
SetEndOfFile
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
GetConsoleCP
LoadLibraryExA
FreeLibrary
VirtualProtect
GetSystemInfo
SetEvent
GetStringTypeW
GetSystemTimeAsFileTime
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
RaiseException
DecodePointer
GetCPInfo
CompareStringW
LCMapStringW
GetLocaleInfoW
SetLastError
InitializeCriticalSectionAndSpinCount
CreateEventW

user32

GetDC
SetWindowPos
SendMessageW
ReleaseCapture
GetParent
DrawTextW
DrawFocusRect
OffsetRect
GetWindowRect
ReleaseDC
GetDlgItem
SetWindowLongW
CharLowerW
wsprintfW
SetWindowRgn
EndDialog
GetDlgCtrlID
UpdateLayeredWindow
GetWindow
MonitorFromWindow
CreateWindowExW
SetWindowTextW
GetActiveWindow
GetMonitorInfoW
ClientToScreen
MapWindowPoints
MoveWindow
SetCapture
GetClientRect
RegisterWindowMessageW
DialogBoxParamW
GetWindowLongW
GetWindowTextLengthW
ScreenToClient
GetWindowDC
BeginPaint
EndPaint
GetWindowTextW
CallWindowProcW
IsWindow

advapi32

CopySid
ConvertSidToStringSidW
GetLengthSid
LsaNtStatusToWinError
OpenProcessToken
GetTokenInformation

shell32

SHCreateDirectoryExW
ShellExecuteExW

ole32

StringFromGUID2
CoCreateGuid
CoInitialize
CoUninitialize
OleRun
CoCreateInstance
CreateStreamOnHGlobal

oleaut32

VariantInit
SysFreeString
VariantClear
SysAllocString
GetErrorInfo

oleacc

LresultFromObject
AccessibleObjectFromWindow

urlmon

URLOpenBlockingStreamW

wintrust

WinVerifyTrust

version

VerQueryValueW
GetFileVersionInfoW
GetFileVersionInfoSizeW

Sections

.text
Size: 246KB - Virtual size: 245KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 84KB - Virtual size: 84KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 6KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 1024B - Virtual size: 652B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 358KB - Virtual size: 358KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 14KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ac8beb10e1413f61c07800c88e18cf71

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

wtsapi32

secur32

wininet

kernel32

user32

advapi32

shell32

ole32

oleaut32

oleacc

urlmon

wintrust

version

Sections

.text Size: 246KB - Virtual size: 245KB

.rdata Size: 84KB - Virtual size: 84KB

.data Size: 6KB - Virtual size: 10KB

.gfids Size: 1024B - Virtual size: 652B

.tls Size: 512B - Virtual size: 9B

.rsrc Size: 358KB - Virtual size: 358KB

.reloc Size: 14KB - Virtual size: 13KB

.text
Size: 246KB - Virtual size: 245KB

.rdata
Size: 84KB - Virtual size: 84KB

.data
Size: 6KB - Virtual size: 10KB

.gfids
Size: 1024B - Virtual size: 652B

.tls
Size: 512B - Virtual size: 9B

.rsrc
Size: 358KB - Virtual size: 358KB

.reloc
Size: 14KB - Virtual size: 13KB