Behavioral task
behavioral1
Sample
3c28d7d61f790a80c8d9f2a749bdc8f15aca88f0e73df8d17a285ef1fd293aa6.exe
Resource
win7-20240508-en
General
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Target
3c28d7d61f790a80c8d9f2a749bdc8f15aca88f0e73df8d17a285ef1fd293aa6.exe
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Size
200KB
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MD5
5335e295791ee756734f1535710a7c53
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SHA1
983f272a45a8f942677755f3a1764c091f966d7c
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SHA256
3c28d7d61f790a80c8d9f2a749bdc8f15aca88f0e73df8d17a285ef1fd293aa6
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SHA512
ecb522083a7ad072cc4164932cf7eaa9ddc181e5fad62018bf5931b0718e166807a9f5ac4f5bf2ba31fd6b080754f7e852784b31ad0c7d6854c22daacba0c1a5
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SSDEEP
3072:cf8yYNF9ex7nLydc8NwEfgjp9yuzKrDjU+XC3bXY/1WXBQ:c8yQF9QaOtnVzE4+SbSWXG
Malware Config
Extracted
stealc
Extracted
vidar
9.7
52d136f389bec064b9101e9cd85c51ef
https://steamcommunity.com/profiles/76561199686524322
https://t.me/k0mono
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4.1 Safari/605.1.15 Ddg/17.4.1
Signatures
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Detect Vidar Stealer 1 IoCs
resource yara_rule sample family_vidar_v7 -
Detects Windows executables referencing non-Windows User-Agents 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL -
Detects executables containing potential Windows Defender anti-emulation checks 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation -
Stealc family
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Vidar family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 3c28d7d61f790a80c8d9f2a749bdc8f15aca88f0e73df8d17a285ef1fd293aa6.exe
Files
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3c28d7d61f790a80c8d9f2a749bdc8f15aca88f0e73df8d17a285ef1fd293aa6.exe.exe windows:5 windows x86 arch:x86
a34c7216d6536a950566187b3d5a3285
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
msvcrt
_EH_prolog
__CxxFrameHandler3
memcmp
memchr
strncpy
malloc
_wtoi64
atexit
??_V@YAXPAX@Z
memset
strcpy_s
strtok_s
memmove
strchr
memcpy
strcat
??_U@YAPAXI@Z
wcslen
strlen
kernel32
IsProcessorFeaturePresent
LoadLibraryW
ExitProcess
GetCurrentProcess
HeapAlloc
GetProcessHeap
lstrlenA
HeapFree
ReadProcessMemory
VirtualQueryEx
GetComputerNameA
FileTimeToSystemTime
CloseHandle
WaitForSingleObject
CreateThread
GetDriveTypeA
GetLogicalDriveStringsA
CreateDirectoryA
LoadLibraryA
GetStringTypeW
Sleep
MultiByteToWideChar
LCMapStringW
WideCharToMultiByte
GetModuleFileNameW
GetStdHandle
GetProcAddress
GetCurrentThreadId
SetLastError
GetModuleHandleW
OpenProcess
RaiseException
EncodePointer
GetLastError
DecodePointer
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
TerminateProcess
InitializeCriticalSectionAndSpinCount
LeaveCriticalSection
EnterCriticalSection
RtlUnwind
GetCPInfo
InterlockedIncrement
InterlockedDecrement
GetACP
GetOEMCP
IsValidCodePage
TlsGetValue
TlsSetValue
WriteFile
user32
wsprintfW
CharToOemA
advapi32
RegGetValueA
GetCurrentHwProfileA
RegOpenKeyExA
GetUserNameA
shell32
SHFileOperationA
ole32
CoSetProxyBlanket
CoInitializeSecurity
CoInitializeEx
CoCreateInstance
oleaut32
VariantInit
SysAllocString
SysFreeString
VariantClear
shlwapi
ord155
crypt32
CryptStringToBinaryA
Sections
.text Size: 130KB - Virtual size: 129KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 45KB - Virtual size: 44KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 2.1MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 20KB - Virtual size: 19KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ