cmmon32[.]exe | Triage

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General

Target

cmmon32.exe
Size

64KB
MD5

c9532e581b8bd9a403c7d40ec4470e26
SHA1

0b5355bcda8834a307df7ae26ab4853c4e6d401e
SHA256

8be3de85f6bb6e46a1a5be3fcd9860c6d497b2f87bc6495448a9fa622befcb98
SHA512

54f0e42d5e98bc79bc362004a817e93118c2177e1c861a62efe308c45f8397f8ab535bb99a674c67f4afdbbde099b0790f5ffbf47d397e50709e0ecb094d3dd0
SSDEEP

768:Ugw5KMK29X6dcyMzpY9Hq4amREwOELysHDnOHh9UASnVXjNDJiy:Ug3MK29qb9cmREJsHDq9GzNDJiy

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
cmmon32.exe

Files

cmmon32.exe
.exe windows:10 windows x64 arch:x64

99ee87fb928dfe3dea854430cda54850

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

Imports

kernel32

FreeLibrary
SetProcessWorkingSetSize
lstrcmpiW
GetTickCount
LoadLibraryExW
GetExitCodeProcess
LoadLibraryExA
OpenEventW
GetModuleHandleA
SetEvent
GetCurrentProcessId
lstrlenA
Sleep
GetLocaleInfoW
GetNumberFormatW
MapViewOfFile
GetProcAddress
GetProcessHeap
UnmapViewOfFile
OpenFileMappingW
WaitForSingleObject
WideCharToMultiByte
LocalFree
LocalAlloc
GetSystemTimeAsFileTime
QueryPerformanceCounter
GetModuleHandleW
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
GetStartupInfoW
CreateThread
CloseHandle
GetLastError
CreateEventW
OpenProcess
GetCurrentThreadId
lstrlenW
lstrcmpW

gdi32

DeleteObject

user32

CreateWindowExW
PostMessageW
DefWindowProcW
SendDlgItemMessageW
SetDlgItemTextW
RegisterWindowMessageW
GetDlgItem
SetWindowTextW
SetWindowLongPtrW
RegisterClassExW
EnableWindow
SetForegroundWindow
SystemParametersInfoW
PostThreadMessageW
TranslateMessage
GetThreadDesktop
PeekMessageW
IsDialogMessageW
DispatchMessageW
IsWindow
ShowWindow
MsgWaitForMultipleObjects
SendMessageW
SetWindowPos
IsWindowVisible
DestroyWindow
GetWindowRect
GetLastActivePopup
GetMessageW
CreateDialogParamW
GetProcessWindowStation
GetWindowLongPtrW
PostQuitMessage
GetUserObjectInformationW

msvcrt

memmove
?terminate@@YAXXZ
_commode
_fmode
_acmdln
__C_specific_handler
_initterm
__setusermatherr
_ismbblead
_cexit
exit
__set_app_type
__getmainargs
_amsg_exit
_XcptFilter
_vsnwprintf
_exit
_vsnprintf
memcpy
memset

cmutil

?SetParams@CmLogFile@@QEAAJHKPEBG@Z
?Init@CmLogFile@@QEAAJPEAUHINSTANCE__@@HPEBG@Z
??1CmLogFile@@QEAA@XZ
??0CmLogFile@@QEAA@XZ
?GPPB@CIniW@@QEBAHPEBG0H@Z
?GPPI@CIniW@@QEBAKPEBG0K@Z
?GPPS@CIniW@@QEBAPEAGPEBG00@Z
?GetPrimaryRegPath@CIniW@@QEBAPEBGXZ
?GetFile@CIniW@@QEBAPEBGXZ
?SetPrimaryRegPath@CIniW@@QEAAXPEBG@Z
?SetPrimaryFile@CIniW@@QEAAXPEBG@Z
?SetFile@CIniW@@QEAAXPEBG@Z
?SetHInst@CIniW@@QEAAXPEAUHINSTANCE__@@@Z
?Clear@CIniW@@QEAAXXZ
??1CIniW@@QEAA@XZ
??0CIniW@@QEAA@PEAUHINSTANCE__@@PEBG111@Z
IsLogonAsSystem
CmLoadSmallIconW
CmStrCpyAllocW
CmBuildFullPathFromRelativeW
CmFmtMsgW
CmLoadStringW
ReleaseBold
MakeBold
CmIsDigitW
CmAtolW
?Stop@CmLogFile@@QEAAJXZ
?DeInit@CmLogFile@@QEAAJXZ
?Log@CmLogFile@@QEAAXW4_CMLOG_ITEM@@ZZ
CmFree
CmMalloc
?Start@CmLogFile@@QEAAJH@Z
CmLoadIconW

Sections

.text
Size: 24KB - Virtual size: 22KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 20KB - Virtual size: 16KB

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: 960B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 4KB - Virtual size: 68B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

99ee87fb928dfe3dea854430cda54850

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

gdi32

user32

msvcrt

cmutil

Sections

.text Size: 24KB - Virtual size: 22KB

.rdata Size: 20KB - Virtual size: 16KB

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

.pdata Size: 4KB - Virtual size: 960B

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

.reloc Size: 4KB - Virtual size: 68B

.text
Size: 24KB - Virtual size: 22KB

.rdata
Size: 20KB - Virtual size: 16KB

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

.pdata
Size: 4KB - Virtual size: 960B

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

.reloc
Size: 4KB - Virtual size: 68B