7z[.]dll | Triage

Resubmissions

04/05/2024, 17:48

240504-wdv7tadb4t 3

04/05/2024, 17:48

240504-wdpd9sdb3y 3

Sharing

Copy URL Twitter E-mail

General

Target

7z.dll
Size

1.6MB
MD5

72491c7b87a7c2dd350b727444f13bb4
SHA1

1e9338d56db7ded386878eab7bb44b8934ab1bc7
SHA256

34ad9bb80fe8bf28171e671228eb5b64a55caa388c31cb8c0df77c0136735891
SHA512

583d0859d29145dfc48287c5a1b459e5db4e939624bd549ff02c61eae8a0f31fc96a509f3e146200cdd4c93b154123e5adfbfe01f7d172db33968155189b5511
SSDEEP

24576:S+clx4tCQJSVAFja8i/RwQQmzgO67V3bYgR+zypEqxr2VSlLP:jclmJSVARa86xzW3xRoyqqxrT

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 x64 arch:x64

09c182b10b88cd78aa1b9a1fdb0142e4

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

oleaut32

SysStringLen
VariantClear
VariantCopy
SysAllocString
SysAllocStringByteLen
SysFreeString
SysAllocStringLen

user32

CharUpperW
CharPrevExA

advapi32

SystemFunction036

msvcrt

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

kernel32

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

Exports

Exports

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

Sections

.text
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 316KB - Virtual size: 315KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1KB - Virtual size: 34KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 72KB - Virtual size: 71KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

09c182b10b88cd78aa1b9a1fdb0142e4

Headers

DLL Characteristics

File Characteristics

Imports

oleaut32

user32

advapi32

msvcrt

kernel32

Exports

Exports

Sections

.text Size: 1.1MB - Virtual size: 1.1MB

.rdata Size: 316KB - Virtual size: 315KB

.data Size: 1KB - Virtual size: 34KB

.pdata Size: 72KB - Virtual size: 71KB

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

.reloc Size: 12KB - Virtual size: 12KB

.text
Size: 1.1MB - Virtual size: 1.1MB

.rdata
Size: 316KB - Virtual size: 315KB

.data
Size: 1KB - Virtual size: 34KB

.pdata
Size: 72KB - Virtual size: 71KB

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

.reloc
Size: 12KB - Virtual size: 12KB