bytedance-2024-Q2[.]rar

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General

Target

bytedance-2024-Q2.rar
Size

11.1MB
MD5

711c9f252061022b87e4fbd7612ad662
SHA1

2e04cf357af3e676091b6d3c5e03dbfdea80896e
SHA256

385a163ba35db4e8842e54b5d35e4eb7b7dfeda5bc5269a857e820f527bba9c2
SHA512

0132b96a22bfd0fedf69081220acf5c751d561590d02aab74e3776c4a06e4fa88f63c759efa486c8c0e9a570dcdce0176bc4c32c28d6a83b352cb1ff07c2f9a4
SSDEEP

196608:9aizifdtqRxdxdQSXaXpfIA9Nuk/KqaeJQ6RliRMKb2R1Fs5nTt7YfHCvENB9fvY:Qcif7MPkp6k/KtcQ6yDbuSnTxmisJfvY

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/bytedance-2024-Q2/__MACOSX/.DOCX/WindowsPerformanceRecorderUI.dll

Files

bytedance-2024-Q2.rar
.rar
bytedance-2024-Q2/__MACOSX/.DOCX/WindowsPerformanceRecorderUI.dll
.dll windows:6 windows x64 arch:x64

4b6d7a528a94120be09935a61b4b56d1

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

Imports

kernel32

GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetProcAddress
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
LoadLibraryA
QueryPerformanceCounter
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
SetUnhandledExceptionFilter
TerminateProcess
UnhandledExceptionFilter

vcruntime140

__C_specific_handler
__std_type_info_destroy_list
memcpy
memset

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

free
malloc

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

_cexit
_configure_narrow_argv
_execute_onexit_table
_initialize_narrow_environment
_initialize_onexit_table
_initterm
_initterm_e
_seh_filter_dll

Exports

Exports

WPRUICreateInstance

Sections

.text
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 645KB - Virtual size: 645KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 600KB - Virtual size: 601KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 512B - Virtual size: 456B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 56B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 140B

.rsrc
Size: 53.2MB - Virtual size: 53.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 151KB - Virtual size: 151KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
bytedance-2024-Q2/__MACOSX/.DOCX/t.com
.exe windows:10 windows x64 arch:x64

01a97470052892d0e29227464e9b2654

Code Sign

33:00:00:04:fe:59:ca:b7:e6:2a:a5:22:c1:00:00:00:00:04:fe
Certificate

Issuer

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

16/02/2023, 20:11

Not After

31/01/2024, 20:11

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:0c:52:4c:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

06/07/2010, 20:40

Not After

06/07/2025, 20:50

Subject

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

b5:0b:d1:43:ea:b7:90:c8:b2:bd:ea:5a:34:4c:10:63:03:e6:0a:d8:a3:39:c7:3f:67:68:aa:00:cf:8a:85:7c
Signer

Actual PE Digest

b5:0b:d1:43:ea:b7:90:c8:b2:bd:ea:5a:34:4c:10:63:03:e6:0a:d8:a3:39:c7:3f:67:68:aa:00:cf:8a:85:7c

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

WPRUI.pdb

Imports

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

_c_exit
_register_thread_local_exe_atexit_callback
_initterm_e
_initterm

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

_o__callnewh
_o__cexit
_o__configthreadlocale
_o__configure_wide_argv
_o__crt_atexit
_o__errno
_o__exit
_o__get_wide_winmain_command_line
_o__initialize_onexit_table
_o__initialize_wide_environment
_o__invalid_parameter_noinfo
_o__invalid_parameter_noinfo_noreturn
_o__register_onexit_function
_o__seh_filter_exe
_o__set_app_type
_o__set_fmode
_o__set_new_mode
memmove
_o__wcsicmp
_o_exit
_o_free
_o_iswalpha
_o_malloc
_o_terminate
__C_specific_handler
__current_exception
__current_exception_context
_CxxThrowException
_o___std_exception_destroy
_o___std_exception_copy
_o___p__commode
__CxxFrameHandler3
memcpy

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

memset

ntdll

RtlLookupFunctionEntry
RtlVirtualUnwind
RtlCaptureContext

kernel32

GetCurrentProcess
IsProcessorFeaturePresent
GetStartupInfoW
SetUnhandledExceptionFilter
UnhandledExceptionFilter
IsDebuggerPresent
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
HeapDestroy
GetProcessHeap
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
GetCommandLineW
SetErrorMode
HeapSetInformation
TerminateProcess
GetModuleHandleW

shell32

CommandLineToArgvW

windowsperformancerecorderui

WPRUICreateInstance

Sections

.text
Size: 12KB - Virtual size: 9KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 4KB - Virtual size: 840B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 4KB - Virtual size: 140B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
bytedance-2024-Q2/bytedance-2024-Q2.pdf.lnk
.lnk

Sharing

General

Malware Config

Signatures

Files

4b6d7a528a94120be09935a61b4b56d1

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

vcruntime140

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

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

Exports

Exports

Sections

.text Size: 5KB - Virtual size: 4KB

.rdata Size: 645KB - Virtual size: 645KB

.data Size: 600KB - Virtual size: 601KB

.pdata Size: 512B - Virtual size: 456B

.00cfg Size: 512B - Virtual size: 56B

.retplne Size: 512B - Virtual size: 140B

.rsrc Size: 53.2MB - Virtual size: 53.2MB

.reloc Size: 151KB - Virtual size: 151KB

01a97470052892d0e29227464e9b2654

Code Sign

33:00:00:04:fe:59:ca:b7:e6:2a:a5:22:c1:00:00:00:00:04:feCertificate

Extended Key Usages

61:0c:52:4c:00:00:00:00:00:03Certificate

Key Usages

b5:0b:d1:43:ea:b7:90:c8:b2:bd:ea:5a:34:4c:10:63:03:e6:0a:d8:a3:39:c7:3f:67:68:aa:00:cf:8a:85:7cSigner

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

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

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

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

ntdll

kernel32

shell32

windowsperformancerecorderui

Sections

.text Size: 12KB - Virtual size: 9KB

.rdata Size: 8KB - Virtual size: 7KB

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

.pdata Size: 4KB - Virtual size: 840B

.rsrc Size: 8KB - Virtual size: 7KB

.reloc Size: 4KB - Virtual size: 140B

.text
Size: 5KB - Virtual size: 4KB

.rdata
Size: 645KB - Virtual size: 645KB

.data
Size: 600KB - Virtual size: 601KB

.pdata
Size: 512B - Virtual size: 456B

.00cfg
Size: 512B - Virtual size: 56B

.retplne
Size: 512B - Virtual size: 140B

.rsrc
Size: 53.2MB - Virtual size: 53.2MB

.reloc
Size: 151KB - Virtual size: 151KB

33:00:00:04:fe:59:ca:b7:e6:2a:a5:22:c1:00:00:00:00:04:fe
Certificate

61:0c:52:4c:00:00:00:00:00:03
Certificate

b5:0b:d1:43:ea:b7:90:c8:b2:bd:ea:5a:34:4c:10:63:03:e6:0a:d8:a3:39:c7:3f:67:68:aa:00:cf:8a:85:7c
Signer

.text
Size: 12KB - Virtual size: 9KB

.rdata
Size: 8KB - Virtual size: 7KB

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

.pdata
Size: 4KB - Virtual size: 840B

.rsrc
Size: 8KB - Virtual size: 7KB

.reloc
Size: 4KB - Virtual size: 140B