7z[.]dll | Triage

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General

Target

7z.dll
Size

1.1MB
MD5

3153abb3ee1acea396b0f7b77c0162c9
SHA1

53b98f18d8f6bef74063e7b3e6d724c4195844f1
SHA256

d6ac1d0599bd4972263f0db15815f753dff1644095ba862897eaf50dec9a1f1c
SHA512

2c4bb7c39c32b2ef4a27e2a9a96b285aaed1e424eecb509b32c2a13bfc955bb726a8c699de478f86cbaf23c9453e4a37620a06b5d56a5001d0bcae003e3bb904
SSDEEP

24576:w03L/0dyba7B7qmVZted3pNf2K1gxFst8TvUrIrnOGC2r8GNhgNFNA2p0Ym:t3L/VaMmVZted3/f27xhUrIrn9ZoUhg0

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
7z.dll

Files

7z.dll
.dll windows:4 windows x86 arch:x86

77f306126855a0e2b18a1df504ca2a48

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

oleaut32

SysAllocStringByteLen
SysAllocStringLen
SysAllocString
SysFreeString
SysStringLen
VariantCopy
VariantClear

user32

CharPrevExA
CharUpperW

msvcrt

_adjust_fdiv
_initterm
_onexit
__dllonexit
?terminate@@YAXXZ
??1type_info@@UAE@XZ
_except_handler3
_beginthreadex
strchr
strcat
strcpy
memset
realloc
free
malloc
strlen
wcscmp
strcmp
strstr
_CxxThrowException
memmove
memcpy
memcmp
_purecall
__CxxFrameHandler

kernel32

GetModuleHandleW
InitializeCriticalSection
ReleaseSemaphore
CreateSemaphoreW
ResetEvent
SetEvent
CreateEventW
WaitForSingleObject
InterlockedIncrement
VirtualFree
VirtualAlloc
QueryPerformanceCounter
FileTimeToLocalFileTime
DeleteCriticalSection
GetVersionExW
LocalFileTimeToFileTime
WaitForMultipleObjects
EnterCriticalSection
LeaveCriticalSection
GetSystemTimeAsFileTime
FileTimeToDosDateTime
DosDateTimeToFileTime
GlobalMemoryStatus
GetSystemInfo
GetCurrentProcess
GetProcessAffinityMask
CompareFileTime
WriteFile
ReadFile
GetFileAttributesW
GetModuleHandleA
GetLastError
MultiByteToWideChar
WideCharToMultiByte
CloseHandle
CreateFileW
SetFileAttributesW
GetProcAddress
CreateDirectoryW
DeleteFileW
SetLastError
GetTempPathW
GetCurrentProcessId
GetTickCount
GetCurrentThreadId
FindClose
FindFirstFileW

Exports

Exports

CreateDecoder
CreateEncoder
CreateObject
GetHandlerProperty
GetHandlerProperty2
GetHashers
GetIsArc
GetMethodProperty
GetNumberOfFormats
GetNumberOfMethods
SetCaseSensitive
SetCodecs
SetLargePageMode

Sections

.text
Size: 844KB - Virtual size: 844KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 117KB - Virtual size: 116KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1KB - Virtual size: 33KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.sxdata
Size: 512B - Virtual size: 4B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 35KB - Virtual size: 35KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

77f306126855a0e2b18a1df504ca2a48

Headers

DLL Characteristics

File Characteristics

Imports

oleaut32

user32

msvcrt

kernel32

Exports

Exports

Sections

.text Size: 844KB - Virtual size: 844KB

.rdata Size: 117KB - Virtual size: 116KB

.data Size: 1KB - Virtual size: 33KB

.sxdata Size: 512B - Virtual size: 4B

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

.reloc Size: 35KB - Virtual size: 35KB

.text
Size: 844KB - Virtual size: 844KB

.rdata
Size: 117KB - Virtual size: 116KB

.data
Size: 1KB - Virtual size: 33KB

.sxdata
Size: 512B - Virtual size: 4B

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

.reloc
Size: 35KB - Virtual size: 35KB