zlib[.]zip | Triage

Sharing

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General

Target

zlib.zip
Size

15KB
MD5

1af64c075fd382eb463c3f5758b87538
SHA1

07ad720f4062e9f830b2e87a3ea7df1c66d06865
SHA256

c1e19b22b953f6f3d7134a3b37b844c76ca6fc04dd52171d233c0a4455bd287a
SHA512

7d28bd5a572b4a1fbcda002e1e7993cd5004b85eb93897f189e7c17bf8fd8b42c032582db18ac42128269001df88ea95983d02dedc19597e3947e0b34b4c8768
SSDEEP

384:CRktkcM1U0pIPBcvN8bxvPx0m9QR5qWLA3mN1POG3UPBM:YktkcMh+PB28V0R51csYBM

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/zlib.dll

Files

zlib.zip
.zip
zlib.dll
.dll windows x86

2f837d7f3a08cf059c7a9abe7398f9ac

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

LoadLibraryA
CloseHandle
LoadLibraryW
GetProcAddress
ExitProcess
DisableThreadLibraryCalls
lstrcpyW
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetLastError
CreateFileW
FreeLibrary
WriteFile
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
UnhandledExceptionFilter

user32

wsprintfA
MessageBoxW
wsprintfW

advapi32

FreeSid
CheckTokenMembership
AllocateAndInitializeSid

vcruntime140

memset
_except_handler4_common
_CxxThrowException
__std_type_info_destroy_list

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

_cexit
_execute_onexit_table
_initterm_e
_initialize_onexit_table
_initialize_narrow_environment
_configure_narrow_argv
_seh_filter_dll
_initterm

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

free

Exports

Exports

adler32
adler32_combine
adler32_combine64
compress
compress2
compressBound
crc32
crc32_combine
crc32_combine64
deflate
deflateBound
deflateCopy
deflateEnd
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
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_
inflateCopy
inflateEnd
inflateGetDictionary
inflateGetHeader
inflateInit2_
inflateInit_
inflateMark
inflatePrime
inflateReset
inflateReset2
inflateResetKeep
inflateSetDictionary
inflateSync
inflateSyncPoint
inflateUndermine
uncompress
zError
zlibCompileFlags
zlibVersion

Sections

.text
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 32KB - Virtual size: 33KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 512B - Virtual size: 248B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 928B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

2f837d7f3a08cf059c7a9abe7398f9ac

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

vcruntime140

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

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

Exports

Exports

Sections

.text Size: 6KB - Virtual size: 6KB

.rdata Size: 6KB - Virtual size: 5KB

.data Size: 32KB - Virtual size: 33KB

.rsrc Size: 512B - Virtual size: 248B

.reloc Size: 1024B - Virtual size: 928B

.text
Size: 6KB - Virtual size: 6KB

.rdata
Size: 6KB - Virtual size: 5KB

.data
Size: 32KB - Virtual size: 33KB

.rsrc
Size: 512B - Virtual size: 248B

.reloc
Size: 1024B - Virtual size: 928B