zlib1[.]dll | Triage

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General

Target

zlib1.dll
Size

143KB
MD5

0427309c8bafa34e933aa0693c75dfd6
SHA1

460f1e1cb88e5a2c244154f5348a9194d71d741e
SHA256

f0937d9295917ef3cc09897637374f14d353847738729e94e61d7f97cda37593
SHA512

1de5eafcf9bc9e1a6a6188173211ea26981cd30ef809003a7ff719267a72e8e287b7033f615afdb1c6e4af79b6e75cc402b5d023ada706521dbcd07b477620ec
SSDEEP

3072:WcZyEp0pUglOUCZbdR9Bj0zWTBfTG8/Jfj+lHMv:WcgEuUoOUwj0zWTBbG8lj+4

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
zlib1.dll

Files

zlib1.dll
.dll windows:6 windows x86 arch:x86

1cb4904387b34178698d9ff82eaf5c2a

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

D:\project\文件压缩解压\zlib-1.2.11win32\zlib-1.2.11\zlib1.pdb

Imports

kernel32

GetLastError
WideCharToMultiByte
HeapFree
HeapAlloc
SetFilePointerEx
CreateFileW
GetFileType
CloseHandle
GetModuleHandleW
GetProcAddress
IsDebuggerPresent
IsProcessorFeaturePresent
GetCommandLineA
GetCurrentThreadId
EncodePointer
DecodePointer
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
SetLastError
GetProcessHeap
ExitProcess
GetModuleHandleExW
AreFileApisANSI
MultiByteToWideChar
GetStdHandle
WriteFile
GetModuleFileNameW
SetStdHandle
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
GetStartupInfoW
GetConsoleCP
GetConsoleMode
SetEndOfFile
ReadFile
ReadConsoleW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
InitializeCriticalSectionAndSpinCount
Sleep
GetCurrentProcess
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetModuleFileNameA
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetStringTypeW
LoadLibraryExW
OutputDebugStringW
RtlUnwind
WriteConsoleW
HeapReAlloc
LCMapStringW
HeapSize
FlushFileBuffers

Exports

Exports

adler32
adler32_combine
adler32_combine64
adler32_z
compress
compress2
compressBound
crc32
crc32_combine
crc32_combine64
crc32_z
deflate
deflateBound
deflateCopy
deflateEnd
deflateGetDictionary
deflateInit2_
deflateInit_
deflateParams
deflatePending
deflatePrime
deflateReset
deflateResetKeep
deflateSetDictionary
deflateSetHeader
deflateTune
get_crc_table
gzbuffer
gzclearerr
gzclose
gzclose_r
gzclose_w
gzdirect
gzdopen
gzeof
gzerror
gzflush
gzfread
gzfwrite
gzgetc
gzgetc_
gzgets
gzoffset
gzoffset64
gzopen
gzopen64
gzopen_w
gzprintf
gzputc
gzputs
gzread
gzrewind
gzseek
gzseek64
gzsetparams
gztell
gztell64
gzungetc
gzvprintf
gzwrite
inflate
inflateBack
inflateBackEnd
inflateBackInit_
inflateCodesUsed
inflateCopy
inflateEnd
inflateGetDictionary
inflateGetHeader
inflateInit2_
inflateInit_
inflateMark
inflatePrime
inflateReset
inflateReset2
inflateResetKeep
inflateSetDictionary
inflateSync
inflateSyncPoint
inflateUndermine
inflateValidate
uncompress
uncompress2
zError
zlibCompileFlags
zlibVersion

Sections

.text
Size: 95KB - Virtual size: 94KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 37KB - Virtual size: 37KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1024B - Virtual size: 920B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

1cb4904387b34178698d9ff82eaf5c2a

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

Exports

Exports

Sections

.text Size: 95KB - Virtual size: 94KB

.rdata Size: 37KB - Virtual size: 37KB

.data Size: 4KB - Virtual size: 12KB

.rsrc Size: 1024B - Virtual size: 920B

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

.text
Size: 95KB - Virtual size: 94KB

.rdata
Size: 37KB - Virtual size: 37KB

.data
Size: 4KB - Virtual size: 12KB

.rsrc
Size: 1024B - Virtual size: 920B

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