sasser | sample[.]exe

General

Target
sample.exe
Size 184KB
Sample260507-17bsgsbs8z
SHA256 904f012e59d9130797c164513520c1e559665351a44a946bada54ecbbf6283e4
MD5 b973853d0863070aca89ce00d4ee0fb9
SHA1 9ad983f541d6773343cde2292ccc5e46336af80e
SHA512 fb2ffdb28c19e41cd6af03796d6a1c7657e2bd72a9d8ed12ac7af5b8ace8534bf83fc03af8ede416c1e2c8aa5f287b710da31ae0441b99f1d143129fa3febc5c
SSDEEP 1536:+j6JDGxpy8sxKdryFr6fUvi4eEbXxsC94JXKMpohtc:+EiNsxKdryFru0i4wnhrSht
TLSH
T12F04D0637DD009B3D096463556E04B17EB3B753213A1D7C78B909F6B3E226C1892E31B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

worm sasser

Malware Config

Signatures

Family: Sasser
Sasser is a Windows worm written in C.
worm sasser

Detects Sasser 1 IoCs

resource	yara_rule
sample	family_sasser

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
sample.exe

File Explorer

sample.exe

.exe 184KB

sample.exe

IMPHASH 7c0dec5d302f8947fdc189955108f32e
SHA256 904f012e59d9130797c164513520c1e559665351a44a946bada54ecbbf6283e4
MD5 b973853d0863070aca89ce00d4ee0fb9
SHA1 9ad983f541d6773343cde2292ccc5e46336af80e
SHA512 fb2ffdb28c19e41cd6af03796d6a1c7657e2bd72a9d8ed12ac7af5b8ace8534bf83fc03af8ede416c1e2c8aa5f287b710da31ae0441b99f1d143129fa3febc5c
SSDEEP 1536:+j6JDGxpy8sxKdryFr6fUvi4eEbXxsC94JXKMpohtc:+EiNsxKdryFru0i4wnhrSht
TLSH
T12F04D0637DD009B3D096463556E04B17EB3B753213A1D7C78B909F6B3E226C1892E31B
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Detects Sasser
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

0

Major OS version

4

Entry point

10692

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_32BIT_MACHINE

PDB paths

user32

wsprintfA

kernel32

LoadLibraryA lstrcpyA _lclose _lwrite _lcreat Sleep _lread _lopen GetModuleFileNameA CreateThread WinExec CloseHandle WriteFile CreateFileA SizeofResource LockResource LoadResource FindResourceA GetModuleHandleA lstrcatA GetProcAddress GetLastError GetTickCount CreateMutexA CopyFileA LCMapStringA SetEnvironmentVariableA CompareStringW CompareStringA HeapReAlloc VirtualAlloc GetOEMCP GetACP GetCPInfo CreateProcessA WaitForSingleObject GetExitCodeProcess HeapAlloc HeapFree GetStringTypeW RtlUnwind MultiByteToWideChar GetWindowsDirectoryA LCMapStringW GetStartupInfoA GetCommandLineA GetVersion ExitProcess TerminateProcess GetCurrentProcess GetFileAttributesA UnhandledExceptionFilter FreeEnvironmentStringsA FreeEnvironmentStringsW WideCharToMultiByte GetEnvironmentStrings GetEnvironmentStringsW SetHandleCount GetStdHandle GetFileType HeapDestroy HeapCreate VirtualFree GetStringTypeA

ws2_32

listen accept recv send htons socket connect closesocket gethostname inet_ntoa inet_addr gethostbyname WSAStartup bind

advapi32

RegSetValueExA RegCloseKey AbortSystemShutdownA RegOpenKeyA

Sharing