Chakrathunk[.]dll

Sharing

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General

Target

Chakrathunk.dll
Size

103KB
MD5

36bc14aa37ec55ab87f5d44b1ba497bb
SHA1

83e87b36cafdd6ea7f784ce35a4e94d272570288
SHA256

519a42634de364c50ffd903eafca8d2f5851c5998b7682ad40227db394690dad
SHA512

fdf933f85bcc28637751389168c5afb1f71c0f8a0bba20da9f9aa3dc3d1fc06e1fcab2d48c558da629a0d08811d75f08b4f98de16f86927cd640af2338787f53
SSDEEP

1536:HR0HcgfJe7S3eEUe8RWHLDXAgkTR/q9k/Cr7pdF3P6g0Uw04M:x6sOLB8RWHvXva/akwXdPyv04M

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Chakrathunk.dll

Files

Chakrathunk.dll
.dll windows:10 windows x86 arch:x86

65e751034b042cf0ce40076ce7be7a4b

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

chakrathunk.pdb

Imports

msvcrt

_unlock
_initterm
__dllonexit
_amsg_exit
_XcptFilter
_onexit
?terminate@@YAXXZ
_callnewh
malloc
free
__CxxFrameHandler3
_CxxThrowException
?what@exception@@UBEPBDXZ
??1exception@@UAE@XZ
??0exception@@QAE@ABV0@@Z
??1type_info@@UAE@XZ
??0exception@@QAE@ABQBD@Z
??0exception@@QAE@XZ
memcpy_s
memmove_s
_except_handler4_common
_lock

api-ms-win-core-file-l1-1-0

CreateFileW

api-ms-win-core-handle-l1-1-0

CloseHandle

api-ms-win-core-errorhandling-l1-1-0

SetUnhandledExceptionFilter
SetLastError
UnhandledExceptionFilter

api-ms-win-core-heap-l1-1-0

HeapAlloc
GetProcessHeap
HeapFree

api-ms-win-core-synch-l1-1-0

ReleaseSRWLockShared
AcquireSRWLockShared
ReleaseSRWLockExclusive
AcquireSRWLockExclusive

api-ms-win-core-memory-l1-1-0

MapViewOfFile
VirtualProtect
CreateFileMappingW
UnmapViewOfFile

api-ms-win-core-libraryloader-l1-2-0

DisableThreadLibraryCalls
GetModuleHandleExW
GetModuleFileNameW

api-ms-win-core-synch-l1-2-0

Sleep

api-ms-win-core-debug-l1-1-0

OutputDebugStringA

api-ms-win-core-profile-l1-1-0

QueryPerformanceCounter

api-ms-win-core-processthreads-l1-1-0

GetCurrentProcessId
TerminateProcess
GetCurrentThreadId
GetCurrentProcess

api-ms-win-core-sysinfo-l1-1-0

GetTickCount
GetSystemTimeAsFileTime

ntdll

DbgPrintEx
NtAreMappedFilesTheSame

Exports

Exports

JsThunk_AllocateData
JsThunk_Cleanup
JsThunk_CleanupDefer
JsThunk_CleanupFinish
JsThunk_DataToCode
JsThunk_GetSize
JsThunk_InitData
JsThunk_Is

Sections

.text
Size: 84KB - Virtual size: 84KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 8KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1024B - Virtual size: 1024B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

65e751034b042cf0ce40076ce7be7a4b

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

api-ms-win-core-file-l1-1-0

api-ms-win-core-handle-l1-1-0

api-ms-win-core-errorhandling-l1-1-0

api-ms-win-core-heap-l1-1-0

api-ms-win-core-synch-l1-1-0

api-ms-win-core-memory-l1-1-0

api-ms-win-core-libraryloader-l1-2-0

api-ms-win-core-synch-l1-2-0

api-ms-win-core-debug-l1-1-0

api-ms-win-core-profile-l1-1-0

api-ms-win-core-processthreads-l1-1-0

api-ms-win-core-sysinfo-l1-1-0

ntdll

Exports

Exports

Sections

.text Size: 84KB - Virtual size: 84KB

.data Size: 8KB - Virtual size: 9KB

.idata Size: 2KB - Virtual size: 2KB

.rsrc Size: 1024B - Virtual size: 1024B

.reloc Size: 5KB - Virtual size: 5KB

.text
Size: 84KB - Virtual size: 84KB

.data
Size: 8KB - Virtual size: 9KB

.idata
Size: 2KB - Virtual size: 2KB

.rsrc
Size: 1024B - Virtual size: 1024B

.reloc
Size: 5KB - Virtual size: 5KB