Makfn[.]rar | Triage

Sharing

Copy URL Twitter E-mail

General

Target

Makfn.rar
Size

3.0MB
MD5

3dabe751258ac01eab7cb39dff2c142e
SHA1

4d59aa1819bb5b9f6f61d7f1ccd5a7b72a01dacc
SHA256

a266af07ba6c01cbe93d4adced015184a2b875fc68c5cd24f6e9a0c84faba08c
SHA512

1239a4851dee86be1d7560549f700aea1bb41c4122af206e1cfebbdbbe8f166a9cfd058fc9bcbee39669a37d2c09138c099adf0da5a193b3b44e41d0e0ad520c
SSDEEP

98304:2I7JppVkMpLF9TZRoFS+nCCWJhBrxGSOYnc5:2kzLkM5z7ogoCCWJPrxGkc5

Score

3^/10

Malware Config

Signatures

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
unpack001/BitSync.dll
unpack001/Loader.exe

Files

Makfn.rar
.rar
BitSync.dll
.dll windows:6 windows x64 arch:x64

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

Sections

Zxdc6
Size: 3.0MB - Virtual size: 7.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

tJiCE
Size: 13KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

si6N
Size: 83KB - Virtual size: 84KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

sfw1k
Size: 478KB - Virtual size: 477KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

vw0z1
Size: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

TCJQE
Size: 21KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Loader.exe
.exe windows:6 windows x64 arch:x64

413b7b2edeba16907a5ed755917a10aa

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

GetConsoleMode
SetConsoleMode
SetConsoleTextAttribute
SetConsoleTitleA
CreateToolhelp32Snapshot
Process32FirstW
Process32NextW
RtlAddFunctionTable
OpenProcess
CreateRemoteThread
VirtualAllocEx
VirtualProtectEx
ReadProcessMemory
WriteProcessMemory
VirtualFreeEx
GetProcAddress
LoadLibraryA
GetSystemTimeAsFileTime
Sleep
CloseHandle
GetExitCodeProcess
GetStdHandle
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
TerminateProcess
IsProcessorFeaturePresent
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
SleepConditionVariableSRW
WakeAllConditionVariable
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
CheckRemoteDebuggerPresent
IsDebuggerPresent
IsWow64Process
GetTickCount
IsBadReadPtr
GetThreadContext
AddVectoredExceptionHandler
GetSystemInfo
GetSystemDirectoryA
GetModuleHandleA
DuplicateHandle
GetSystemDirectoryW
CreateFileW
SetFilePointer
GetCurrentProcess
RemoveVectoredExceptionHandler
ReadFile
GetModuleHandleW
FreeLibrary
InitializeSListHead

advapi32

CheckTokenMembership
AllocateAndInitializeSid
FreeSid

msvcp140

?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?_Getcat@?$ctype@D@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?good@ios_base@std@@QEBA_NXZ
?uncaught_exception@std@@YA_NXZ
?flags@ios_base@std@@QEBAHXZ
?width@ios_base@std@@QEBA_JXZ
?width@ios_base@std@@QEAA_J_J@Z
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?cin@std@@3V?$basic_istream@DU?$char_traits@D@std@@@1@A
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?getloc@ios_base@std@@QEBA?AVlocale@2@XZ
?id@?$ctype@D@std@@2V0locale@2@A
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??0_Lockit@std@@QEAA@H@Z
?tie@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_ostream@DU?$char_traits@D@std@@@2@XZ
??1_Lockit@std@@QEAA@XZ
?_Xlength_error@std@@YAXPEBD@Z
?rdbuf@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_streambuf@DU?$char_traits@D@std@@@2@XZ
?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADXZ
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
??Bid@locale@std@@QEAA_KXZ

shlwapi

ord215
PathFindFileNameA

imagehlp

ImageNtHeader

wintrust

WinVerifyTrust

vcruntime140

memcmp
__current_exception_context
__current_exception
__std_terminate
__std_exception_copy
__std_exception_destroy
__C_specific_handler
memset
memcpy
memmove
_CxxThrowException

vcruntime140_1

__CxxFrameHandler4

api-ms-win-crt-runtime-l1-1-0

_exit
__p___argv
_get_initial_narrow_environment
_set_app_type
_initterm
_cexit
_initterm_e
_crt_atexit
_register_onexit_function
_initialize_onexit_table
_initialize_narrow_environment
_configure_narrow_argv
_c_exit
_register_thread_local_exe_atexit_callback
terminate
system
exit
_invalid_parameter_noinfo_noreturn
_seh_filter_exe
__p___argc

api-ms-win-crt-stdio-l1-1-0

__stdio_common_vfprintf
__p__commode
__acrt_iob_func
_set_fmode

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

_callnewh
_set_new_mode
free
calloc
malloc

api-ms-win-crt-string-l1-1-0

strcmp
strncmp

api-ms-win-crt-utility-l1-1-0

rand
srand

api-ms-win-crt-math-l1-1-0

__setusermatherr

api-ms-win-crt-locale-l1-1-0

_configthreadlocale

Sections

.text
Size: 23KB - Virtual size: 23KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 14KB - Virtual size: 13KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 488B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 124B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Headers

DLL Characteristics

File Characteristics

Sections

Zxdc6 Size: 3.0MB - Virtual size: 7.1MB

tJiCE Size: 13KB - Virtual size: 12KB

si6N Size: 83KB - Virtual size: 84KB

sfw1k Size: 478KB - Virtual size: 477KB

vw0z1 Size: 512B - Virtual size: 480B

TCJQE Size: 21KB - Virtual size: 24KB

413b7b2edeba16907a5ed755917a10aa

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

msvcp140

shlwapi

imagehlp

wintrust

vcruntime140

vcruntime140_1

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-stdio-l1-1-0

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

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-utility-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-locale-l1-1-0

Sections

.text Size: 23KB - Virtual size: 23KB

.rdata Size: 14KB - Virtual size: 13KB

.data Size: 512B - Virtual size: 2KB

.pdata Size: 1KB - Virtual size: 1KB

.rsrc Size: 512B - Virtual size: 488B

.reloc Size: 512B - Virtual size: 124B

Zxdc6
Size: 3.0MB - Virtual size: 7.1MB

tJiCE
Size: 13KB - Virtual size: 12KB

si6N
Size: 83KB - Virtual size: 84KB

sfw1k
Size: 478KB - Virtual size: 477KB

vw0z1
Size: 512B - Virtual size: 480B

TCJQE
Size: 21KB - Virtual size: 24KB

.text
Size: 23KB - Virtual size: 23KB

.rdata
Size: 14KB - Virtual size: 13KB

.data
Size: 512B - Virtual size: 2KB

.pdata
Size: 1KB - Virtual size: 1KB

.rsrc
Size: 512B - Virtual size: 488B

.reloc
Size: 512B - Virtual size: 124B