oski | sosi[.]exe

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General

Target

sosi.exe
Size

200KB
MD5

46336799625b777d6ac52bff81d5604c
SHA1

0133461342d41df2e31f8a48c957c63c99793992
SHA256

dce3cfe541188e0267da98342cecd47a6acdaec6827e6e7be35ffdc823c22a71
SHA512

b8c04a060a7874000f6c4000079b50d14d28ca9286d1dde05997520509aa207e5c095ee1b15f3a782c19eab7f7aa054a69d0d974b2579cf199b0ef1e9cb1e480
SSDEEP

3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIq1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pNn1Ljo3c

Score

10^/10

oski

Malware Config

Extracted

Family

oski

a1046954.xsph.ru

Signatures

Oski family
oski

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
sosi.exe

Files

sosi.exe
.exe windows:5 windows x86 arch:x86

7bb9d345a5fec4fbbf5100d6a3ffbb8c

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

HeapAlloc
GetProcessHeap
CreateFileA
GetFileSize
WriteFile
ReadFile
MultiByteToWideChar
CloseHandle
GetFullPathNameW
FindFirstFileExW
FindClose
FindNextFileW
LocalAlloc
GetVersionExA
LocalFree
Sleep
GlobalMemoryStatus
GetFileAttributesA
SetFilePointer
MapViewOfFile
UnmapViewOfFile
SystemTimeToFileTime
GetTickCount
FileTimeToSystemTime
GetLocalTime
CreateFileMappingA
GetFileInformationByHandle
WriteConsoleW
SetEndOfFile
FlushFileBuffers
GetConsoleMode
GetConsoleCP
SetStdHandle
FileTimeToLocalFileTime
GetLastError
FindFirstFileExA
FindNextFileA
EncodePointer
DecodePointer
HeapFree
WideCharToMultiByte
GetSystemTimeAsFileTime
GetCommandLineA
HeapSetInformation
GetStartupInfoW
RaiseException
TerminateProcess
GetCurrentProcess
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
IsProcessorFeaturePresent
GetCPInfo
InterlockedIncrement
InterlockedDecrement
GetACP
GetOEMCP
IsValidCodePage
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetModuleHandleW
SetLastError
GetCurrentThreadId
GetProcAddress
HeapSize
ExitProcess
HeapCreate
GetStdHandle
GetModuleFileNameW
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
RtlUnwind
SetHandleCount
GetFileType
DeleteCriticalSection
SetEnvironmentVariableW
SetEnvironmentVariableA
GetTimeZoneInformation
LCMapStringW
GetModuleFileNameA
FreeEnvironmentStringsW
GetEnvironmentStringsW
QueryPerformanceCounter
GetCurrentProcessId
GetStringTypeW
HeapReAlloc
LoadLibraryW
CompareStringW
CreateFileW

user32

GetDesktopWindow

netapi32

NetWkstaGetInfo
NetApiBufferFree
DsRoleGetPrimaryDomainInformation

Sections

.text
Size: 150KB - Virtual size: 150KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 32KB - Virtual size: 32KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 11KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Extracted

Signatures

Files

7bb9d345a5fec4fbbf5100d6a3ffbb8c

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

netapi32

Sections

.text Size: 150KB - Virtual size: 150KB

.rdata Size: 32KB - Virtual size: 32KB

.data Size: 4KB - Virtual size: 17KB

.reloc Size: 11KB - Virtual size: 11KB

.text
Size: 150KB - Virtual size: 150KB

.rdata
Size: 32KB - Virtual size: 32KB

.data
Size: 4KB - Virtual size: 17KB

.reloc
Size: 11KB - Virtual size: 11KB