Karlson[.]exe | Triage

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General

Target

Karlson.exe
Size

626KB
MD5

48b87a4c7c7afb0fd4a7a08e5d94a131
SHA1

495a571c3a207ed92fddc3161ef3fda8b202400a
SHA256

3f9601c24a3c3adc787a3c3f16eb3373272c9e18c599b318ec5b988a96583f50
SHA512

1bf85496b227de41354d5e54da4531faa5dce7040b09bfe32a0a334bda7cca1e7b9de00967cf1029c5ac098473d70e651b8bd95326e7abcaf64818fb67773c91
SSDEEP

12288:QqA3u5YZo6nxcsE5SIf1gommmmv4evoDQXOoXfQzw/CKHcs:Qqw/nxTE/wxDAnXfQM/H8

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Karlson.exe

Files

Karlson.exe
.exe windows:6 windows x86 arch:x86

e31e227f9c58f4b15ebf5b93d8c3c2a0

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

C:\buildslave\unity\build\artifacts\WindowsPlayer\Win32_VS2019_nondev_m_r\WindowsPlayer_Master_mono_x86.pdb

Imports

unityplayer

UnityMain

kernel32

HeapAlloc
WriteConsoleW
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
GetModuleHandleW
GetCurrentProcess
TerminateProcess
CloseHandle
RtlUnwind
GetLastError
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
RaiseException
GetStdHandle
WriteFile
GetModuleFileNameW
ExitProcess
GetModuleHandleExW
DecodePointer
HeapFree
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetCommandLineA
GetCommandLineW
MultiByteToWideChar
WideCharToMultiByte
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetStdHandle
GetFileType
GetStringTypeW
LCMapStringW
GetProcessHeap
HeapSize
HeapReAlloc
FlushFileBuffers
GetConsoleCP
GetConsoleMode
SetFilePointerEx
CreateFileW

Exports

Exports

AmdPowerXpressRequestHighPerformance
NvOptimusEnablement

Sections

.text
Size: 44KB - Virtual size: 43KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 23KB - Virtual size: 22KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 552KB - Virtual size: 552KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

e31e227f9c58f4b15ebf5b93d8c3c2a0

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

unityplayer

kernel32

Exports

Exports

Sections

.text Size: 44KB - Virtual size: 43KB

.rdata Size: 23KB - Virtual size: 22KB

.data Size: 2KB - Virtual size: 4KB

.rsrc Size: 552KB - Virtual size: 552KB

.reloc Size: 3KB - Virtual size: 3KB

.text
Size: 44KB - Virtual size: 43KB

.rdata
Size: 23KB - Virtual size: 22KB

.data
Size: 2KB - Virtual size: 4KB

.rsrc
Size: 552KB - Virtual size: 552KB

.reloc
Size: 3KB - Virtual size: 3KB