YandexPackLoader[.]exe

Sharing

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General

Target

YandexPackLoader.exe
Size

225KB
MD5

6971695b5893e9952c35f0653bb192c3
SHA1

42f496f742ba2dadb49151ce9539d4f2ea99aa28
SHA256

d15035a9341bea4a659674b6e79b038b38f0cd1b01c537e82be57b1035c5e5f0
SHA512

fa86a6ae6ccfa74b7feb9a710fe97aabda33685c41d948b9930dc92b3a4bc0a5f93f39254c3ed6c0cbad87cc98859aa44c437043694dec06975308c09eebc4eb
SSDEEP

3072:E6GEtNEXN4wCq5/v46QC2mCm/lY9Kkj3c6QQaWAk0Ag5qAWKGETBKnF58it3kzMx:hGYk4wCq5x+9T3bQQaNlTwNt3kz

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

9d4745b4b8ed18dda7e4fbf0015900e0

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

WTSQuerySessionInformationW
WTSFreeMemory

secur32

LsaGetLogonSessionData
LsaFreeReturnBuffer
LsaEnumerateLogonSessions

kernel32

WaitForSingleObject
GetVersionExW
Sleep
GetLastError
CloseHandle
GetCurrentProcessId
CreateProcessW
GetExitCodeProcess
GetModuleFileNameW
CreateFileW
UnmapViewOfFile
CreateFileMappingW
MapViewOfFile
VirtualQuery
GetCurrentProcess
HeapFree
FindClose
DuplicateHandle
MultiByteToWideChar
OutputDebugStringW
HeapAlloc
GetProcessHeap
WideCharToMultiByte
GetEnvironmentStringsW
GetCommandLineA
GetCPInfo
GetCommandLineW
SetHandleInformation
FreeEnvironmentStringsW
SetEnvironmentVariableW
SetStdHandle
ExitProcess
GetOEMCP
IsValidCodePage
FindNextFileW
FindFirstFileExW
WriteFile
DecodePointer
ReadConsoleW
ReadFile
SetEndOfFile
HeapReAlloc
HeapSize
GetModuleHandleExW
GetStdHandle
LoadLibraryExW
GetProcAddress
FreeLibrary
TlsFree
TlsSetValue
TlsGetValue
WriteConsoleW
SetFilePointerEx
TlsAlloc
LCMapStringW
CompareStringW
GetFileType
GetStringTypeW
GetConsoleMode
GetConsoleCP
FlushFileBuffers
GetACP
LocalFree
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
EncodePointer
RtlUnwind
RaiseException
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount

user32

CharLowerW
wsprintfW

advapi32

CopySid
ConvertSidToStringSidW
GetLengthSid
LsaNtStatusToWinError
OpenProcessToken
GetTokenInformation

shell32

ShellExecuteExW
SHCreateDirectoryExW

ole32

CoUninitialize
CoInitialize

oleaut32

VariantClear

urlmon

URLOpenBlockingStreamW

wintrust

WinVerifyTrust

ws2_32

WSAGetLastError
htons
htonl
connect
socket
send
WSAStartup
getaddrinfo
shutdown
closesocket
WSACleanup
freeaddrinfo
recv

version

GetFileVersionInfoW
VerQueryValueW
GetFileVersionInfoSizeW

Sections

.text
Size: 140KB - Virtual size: 139KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 36KB - Virtual size: 36KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 512B - Virtual size: 308B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 26KB - Virtual size: 25KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

9d4745b4b8ed18dda7e4fbf0015900e0

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

wtsapi32

secur32

kernel32

user32

advapi32

shell32

ole32

oleaut32

urlmon

wintrust

ws2_32

version

Sections

.text Size: 140KB - Virtual size: 139KB

.rdata Size: 36KB - Virtual size: 36KB

.data Size: 3KB - Virtual size: 13KB

.gfids Size: 512B - Virtual size: 308B

.rsrc Size: 26KB - Virtual size: 25KB

.reloc Size: 6KB - Virtual size: 6KB

.text
Size: 140KB - Virtual size: 139KB

.rdata
Size: 36KB - Virtual size: 36KB

.data
Size: 3KB - Virtual size: 13KB

.gfids
Size: 512B - Virtual size: 308B

.rsrc
Size: 26KB - Virtual size: 25KB

.reloc
Size: 6KB - Virtual size: 6KB