os9app[.]exe | Triage

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General

Target

os9app.exe
Size

1.4MB
MD5

8cc03f8317a13285cfa4d630ea83a252
SHA1

9db28a7e3b8fbfb8f6df39fc3acc6927d3b4186a
SHA256

93a61fe6be1ef440040570d6b3e7360f3ab3d5d165b8132602b9586c97b9a1e7
SHA512

862d28d829259d83f45f2098d34cf8f2126b15108eca687b50ee189a713b95eeaf9046395965116a7521f1ff64db6b07ad0589d172b42c304b2f4596a1a1591a
SSDEEP

12288:zv0VyTdJ7V9lBYIDhDRe6yxwDeDbDir1d/DbB/rYYwIwIWruQHeHN4gcSPTLjBNZ:wgIIIfw0kT3jmfpVKeeW

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
os9app.exe

Files

os9app.exe
.exe windows:4 windows x86

2d1278fc3132da76a40382b1b0bb6a51

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

_lopen
GetFileTime
FileTimeToLocalFileTime
FileTimeToSystemTime
SystemTimeToFileTime
LocalFileTimeToFileTime
SetFileTime
_lclose
GetLastError
SetLastError
SetFilePointer
SetEndOfFile
FindFirstFileA
FindClose
CreateDirectoryA
GetTickCount
GetProcAddress
FreeLibrary
LoadLibraryA
GetStartupInfoA
CreateProcessA
WaitForSingleObject
GetExitCodeProcess
CloseHandle
GetCurrentDirectoryA
SetErrorMode
GetStdHandle
SetConsoleTitleA
SetConsoleCtrlHandler
Sleep
GetVolumeInformationA
CreateFileA
DeviceIoControl
GetNumberOfConsoleInputEvents
ReadConsoleInputA
GetVersionExA
GetProfileStringA
EnterCriticalSection
LeaveCriticalSection
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
GetFileType
DeleteFileA
GetFileAttributesA
ExitProcess
GetDiskFreeSpaceA
GetFileInformationByHandle
PeekNamedPipe
GetLocalTime
GetTimeZoneInformation
FindNextFileA
GetEnvironmentStrings
FreeEnvironmentStringsA
IsBadReadPtr
RtlUnwind
WriteFile
ReadFile
MoveFileA
GetCurrentProcess
DuplicateHandle
InitializeCriticalSection
DeleteCriticalSection
GlobalAlloc
GlobalFree
GetCommandLineA

user32

GetDesktopWindow
GetWindowRect
MessageBoxA

winspool.drv

ord201
OpenPrinterA
StartDocPrinterA
StartPagePrinter
ClosePrinter
EndDocPrinter
WritePrinter
EndPagePrinter

ws2_32

ioctlsocket
closesocket
socket
bind
WSAGetLastError
listen
WSACreateEvent
WSAEventSelect
connect
accept
WSACloseEvent
sendto
recvfrom
WSAStartup
gethostbyname
WSAEnumNetworkEvents
recv
send

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 11KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.exc
Size: 35KB - Virtual size: 34KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 162KB - Virtual size: 162KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.bss
Size: - Virtual size: 1.8MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 128KB - Virtual size: 128KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

2d1278fc3132da76a40382b1b0bb6a51

Headers

File Characteristics

Imports

kernel32

user32

winspool.drv

ws2_32

Sections

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

.rdata Size: 11KB - Virtual size: 11KB

.exc Size: 35KB - Virtual size: 34KB

.data Size: 162KB - Virtual size: 162KB

.idata Size: 2KB - Virtual size: 2KB

.CRT Size: 512B - Virtual size: 16B

.bss Size: - Virtual size: 1.8MB

.reloc Size: 128KB - Virtual size: 128KB

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

.rdata
Size: 11KB - Virtual size: 11KB

.exc
Size: 35KB - Virtual size: 34KB

.data
Size: 162KB - Virtual size: 162KB

.idata
Size: 2KB - Virtual size: 2KB

.CRT
Size: 512B - Virtual size: 16B

.bss
Size: - Virtual size: 1.8MB

.reloc
Size: 128KB - Virtual size: 128KB