last[.]exe | Triage

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General

Target

last.exe
Size

1.0MB
MD5

29f6f5914405a754dd21b6ddd2976b70
SHA1

a4ed0bd1c11902980bfb4befaba8b08536ef626b
SHA256

e1b1c0a9063bc675e60dacbcba519f1e22dfe0eb594fb1d6924690263bd66db9
SHA512

60ede0c150a1c4778c1d5de6e2146b2af840495494559ed8c6218791d174d0907bd4c33c22b0a8c953f83698ee05170585c928aaef4000bbaca05816f114f1d3
SSDEEP

12288:JlPXJHyiigP6TzUkZXb+LpNsG9oo8+sTSqK9pY5+aZdIbG1YbFXlWjIZ238hc3Xm:nXJHyibP4UvPa6aZdIbGObFXKH9Dx

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
last.exe

Files

last.exe
.exe windows:4 windows x86 arch:x86

0d5516c2f552d4aa2320967ee5f90a18

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_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED

Imports

kernel32

DeleteCriticalSection
EnterCriticalSection
FreeLibrary
GetLastError
GetModuleHandleA
GetProcAddress
GetStartupInfoA
GlobalAlloc
GlobalFlags
InitializeCriticalSection
LeaveCriticalSection
LoadLibraryA
SetUnhandledExceptionFilter
Sleep
TlsGetValue
VirtualProtect
VirtualQuery
DefineDosDeviceW
DeleteProcThreadAttributeList
EnumCalendarInfoW
ExpandEnvironmentStringsA
GetFileAttributesExA
Heap32First
LocalAlloc
lstrcmpiA

msvcrt

__getmainargs
__initenv
__p__acmdln
__p__commode
__p__fmode
__set_app_type
__setusermatherr
_amsg_exit
_cexit
_initterm
_iob
_onexit
abort
calloc
exit
fprintf
free
fwrite
malloc
memcpy
signal
strlen
strncmp
vfprintf

cfgmgr32

CM_Delete_Class_Key
CM_Delete_Device_Interface_Key_ExW
CM_Get_Device_Interface_ListA
CM_Get_Device_Interface_PropertyW
CM_Get_Log_Conf_Priority
CM_Request_Eject_PC
CM_Set_DevNode_PropertyW

credui

CredPackAuthenticationBufferA
CredUICmdLinePromptForCredentialsW
CredUIConfirmCredentialsA
CredUIParseUserNameW
CredUIPromptForCredentialsA
CredUIPromptForWindowsCredentialsA
CredUnPackAuthenticationBufferA
SspiGetCredUIContext
SspiIsPromptingNeeded

dwmapi

DwmFlush
DwmGetWindowAttribute
DwmModifyPreviousDxFrameDuration
DwmSetDxFrameDuration
DwmUnregisterThumbnail
DwmUpdateThumbnailProperties

mpr

MultinetGetConnectionPerformanceA
WNetAddConnection3W
WNetAddConnectionA
WNetAddConnectionW
WNetCancelConnectionA
WNetConnectionDialog1A
WNetEnumResourceA
WNetGetConnectionA
WNetGetLastErrorW

netapi32

DsEnumerateDomainTrustsA
DsGetDcNameW
DsGetDcNextA
DsGetDcNextW
DsValidateSubnetNameA
DsValidateSubnetNameW
NetApiBufferReallocate
NetGetAnyDCName
NetProvisionComputerAccount
NetServerComputerNameDel
NetShareDelEx
NetUserGetGroups

shlwapi

PathGetDriveNumberA
PathIsPrefixW
PathIsSameRootA
SHRegQueryInfoUSKeyA
StrChrIW
StrCmpCA
StrFormatByteSize64A
StrRChrW
StrRStrIW

webservices

WsCreateXmlBuffer
WsReadEndAttribute
WsReadToStartElement
WsResetChannel
WsResetHeap
WsSetInputToBuffer
WsSetOutputToBuffer
WsSetReaderPosition
WsShutdownSessionChannel

cr

wcMUPYJpDtlMCCFA

Sections

.text
Size: 1.0MB - Virtual size: 1.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 48B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.eh_fram
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 188B

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 48B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 512B - Virtual size: 8B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 700.0MB - Virtual size: 600B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

0d5516c2f552d4aa2320967ee5f90a18

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

msvcrt

cfgmgr32

credui

dwmapi

mpr

netapi32

shlwapi

webservices

cr

Sections

.text Size: 1.0MB - Virtual size: 1.0MB

.data Size: 512B - Virtual size: 48B

.rdata Size: 2KB - Virtual size: 1KB

.eh_fram Size: 2KB - Virtual size: 1KB

.bss Size: - Virtual size: 188B

.idata Size: 4KB - Virtual size: 3KB

.CRT Size: 512B - Virtual size: 48B

.tls Size: 512B - Virtual size: 8B

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 700.0MB - Virtual size: 600B

.text
Size: 1.0MB - Virtual size: 1.0MB

.data
Size: 512B - Virtual size: 48B

.rdata
Size: 2KB - Virtual size: 1KB

.eh_fram
Size: 2KB - Virtual size: 1KB

.bss
Size: - Virtual size: 188B

.idata
Size: 4KB - Virtual size: 3KB

.CRT
Size: 512B - Virtual size: 48B

.tls
Size: 512B - Virtual size: 8B

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 700.0MB - Virtual size: 600B