TBK[.]exe | Triage

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General

Target

TBK.exe
Size

7.4MB
MD5

c4f886d3b4ce022c73dff1312b5e6d2a
SHA1

e9c2e75578956fd75dd60765c968b9ce1023073b
SHA256

721a4b64330caaa0a64de7a355c76add6f50a90ce6039fbb17a8db6ddfd8debc
SHA512

806a1b1c4f021d49735d7686de5bd0c3ef8f64d50761ba1ed58ea3c80fc4ff141c62aed6adcefb359c563f6e45733d60892e64a636cd3c3f99432b46d9d84687
SSDEEP

196608:f+24uWJysVYvsOSVoyMxxvjDDAx4Br/nKsM/d0kkS2hTyZpMTx:DWJzoyMxtDDAxmxM/d0k1myZpMT

Score

3^/10

pyinstaller

Malware Config

Signatures

Detects Pyinstaller 1 IoCs
pyinstaller

Processes:

resource yara_rule

sample pyinstaller
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.

Processes:

resource

TBK.exe

resource	yara_rule
sample	pyinstaller

resource
TBK.exe

Files

TBK.exe
.exe windows:5 windows x64 arch:x64

f4cf09dd5265ea802d83e943c2137765

Headers

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

Imports

kernel32

GetCommandLineW
GetEnvironmentVariableW
SetEnvironmentVariableW
ExpandEnvironmentStringsW
CreateDirectoryW
GetTempPathW
WaitForSingleObject
Sleep
GetExitCodeProcess
GetStartupInfoW
LoadLibraryExW
CloseHandle
GetCurrentProcess
LoadLibraryA
LocalFree
FormatMessageW
MultiByteToWideChar
WideCharToMultiByte
SetEndOfFile
GetProcAddress
GetModuleFileNameW
SetDllDirectoryW
CreateProcessW
GetLastError
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetModuleHandleW
RtlUnwindEx
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
RaiseException
GetCommandLineA
ReadFile
CreateFileW
GetDriveTypeW
GetFileInformationByHandle
GetFileType
PeekNamedPipe
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
GetFullPathNameW
RemoveDirectoryW
FindClose
FindFirstFileExW
FindNextFileW
SetStdHandle
SetConsoleCtrlHandler
DeleteFileW
GetStdHandle
WriteFile
ExitProcess
GetModuleHandleExW
HeapAlloc
HeapFree
GetConsoleMode
ReadConsoleW
SetFilePointerEx
GetConsoleCP
GetFileSizeEx
CompareStringW
LCMapStringW
GetCurrentDirectoryW
FlushFileBuffers
GetFileAttributesExW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetStringTypeW
GetProcessHeap
GetTimeZoneInformation
HeapSize
HeapReAlloc
WriteConsoleW

advapi32

ConvertSidToStringSidW
GetTokenInformation
OpenProcessToken
ConvertStringSecurityDescriptorToSecurityDescriptorW

Sections

.text
Size: 134KB - Virtual size: 134KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 64KB - Virtual size: 64KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 64KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 7KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 148B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
tbk.pyc

Sharing

General

Malware Config

Signatures

Files

f4cf09dd5265ea802d83e943c2137765

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

Sections

.text Size: 134KB - Virtual size: 134KB

.rdata Size: 64KB - Virtual size: 64KB

.data Size: 3KB - Virtual size: 64KB

.pdata Size: 7KB - Virtual size: 7KB

_RDATA Size: 512B - Virtual size: 148B

.rsrc Size: 6KB - Virtual size: 5KB

.reloc Size: 2KB - Virtual size: 1KB

.text
Size: 134KB - Virtual size: 134KB

.rdata
Size: 64KB - Virtual size: 64KB

.data
Size: 3KB - Virtual size: 64KB

.pdata
Size: 7KB - Virtual size: 7KB

_RDATA
Size: 512B - Virtual size: 148B

.rsrc
Size: 6KB - Virtual size: 5KB

.reloc
Size: 2KB - Virtual size: 1KB