stealc | ojujn[.]exe

General

Target
ojujn.exe
Size 779KB
Sample260930-pm1qbsvs3j
SHA256 1f423c42e631e5b57350566821bc0561f9105ec4e9eb055f29f44d0cb5d9aff3
MD5 85bafbe1a5bcf20693e9a6f72f1c657a
SHA1 7a7a0fa3e1bbf042a9e702d053920686c7e5c8dd
SHA512 4a8c2f022118e95ab536708d8c831d7a3a0ec1dbd677a034b60bdd9bdecec9ad993afb1b2d3389fe962fbb4a8d4d3a0b8c6f55b68463b406e633bed2fe01a914
SSDEEP 12288:ZSsWuX2hy9dQkIEPYSOdqRThSx4JcjuyxBlDetAqxSv:DG6IEOd+TAmJcCyb
TLSH
T142058D1AF3A902E8D0BBC178C9524552EB72B85653309ADF03E15A661F377E06F3EB11
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

stealer stealc

Malware Config

Extracted

Family

stealc

C2

http://downloadfreemanager.com

rc4.plain

Signatures

Family: Stealc
Stealc is an infostealer written in C++.
stealer stealc

Detects Stealc stealer Version 3 1 IoCs

resource	yara_rule
sample	family_stealc_v3

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
ojujn.exe

File Explorer

ojujn.exe

.exe 779KB

ojujn.exe

IMPHASH e9dd64dcce15e249bad873d9dec07f6f
SHA256 1f423c42e631e5b57350566821bc0561f9105ec4e9eb055f29f44d0cb5d9aff3
MD5 85bafbe1a5bcf20693e9a6f72f1c657a
SHA1 7a7a0fa3e1bbf042a9e702d053920686c7e5c8dd
SHA512 4a8c2f022118e95ab536708d8c831d7a3a0ec1dbd677a034b60bdd9bdecec9ad993afb1b2d3389fe962fbb4a8d4d3a0b8c6f55b68463b406e633bed2fe01a914
SSDEEP 12288:ZSsWuX2hy9dQkIEPYSOdqRThSx4JcjuyxBlDetAqxSv:DG6IEOd+TAmJcCyb
TLSH
T142058D1AF3A902E8D0BBC178C9524552EB72B85653309ADF03E15A661F377E06F3EB11
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

Detects Stealc stealer Version 3
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

0

Major OS version

6

Entry point

298272

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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

PDB paths

kernel32

LoadLibraryA GetProcAddress GetCurrentProcess SetEndOfFile QueryPerformanceCounter QueryPerformanceFrequency GetSystemTimePreciseAsFileTime ReleaseSRWLockExclusive AcquireSRWLockExclusive SleepConditionVariableSRW Sleep GetCurrentThreadId WideCharToMultiByte MultiByteToWideChar GetStringTypeW GetLocaleInfoEx EnterCriticalSection LeaveCriticalSection InitializeCriticalSectionEx DeleteCriticalSection EncodePointer DecodePointer LCMapStringEx GetCPInfo WakeAllConditionVariable SetUnhandledExceptionFilter GetStartupInfoW GetModuleHandleW GetCurrentProcessId GetSystemTimeAsFileTime InitializeSListHead RtlPcToFileHeader RaiseException RtlLookupFunctionEntry RtlUnwindEx GetLastError SetLastError FlsAlloc FlsGetValue FlsSetValue FlsFree IsProcessorFeaturePresent GetStdHandle GetFileType GetModuleFileNameW GetModuleHandleExW WriteConsoleW ExitProcess TerminateProcess FreeLibrary WriteFile RtlCaptureContext RtlVirtualUnwind IsDebuggerPresent UnhandledExceptionFilter HeapFree HeapAlloc OutputDebugStringW GetTimeZoneInformation GetFileSizeEx SetFilePointerEx FlushFileBuffers GetConsoleOutputCP GetConsoleMode CloseHandle VirtualProtect LoadLibraryExW CompareStringW LCMapStringW GetLocaleInfoW IsValidLocale GetUserDefaultLCID EnumSystemLocalesW ReadFile ReadConsoleW IsValidCodePage GetACP GetOEMCP HeapReAlloc FindClose FindFirstFileExW FindNextFileW GetCommandLineA GetCommandLineW GetEnvironmentStringsW FreeEnvironmentStringsW SetEnvironmentVariableW GetProcessHeap SetStdHandle CreateFileW HeapSize RtlUnwind

Name

.text

Size

470KB

Virtual Size

469KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

110KB

Virtual Size

109KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

177KB

Virtual Size

247KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

16KB

Virtual Size

16KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.fptable

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.reloc

Size

3KB

Virtual Size

3KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Extracted

Signatures

File Explorer

ojujn.exe

kernel32

generic