General
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Target
MailRanger.rar
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Size
193.0MB
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MD5
523a37d5fae0771d17e6fdfd0d7d57d3
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SHA1
6922a526480293402a379772214f50eb9ee0dff7
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SHA256
7f7821072d79a0deb26affbf11a4e73d86bfae4a3ef05f9ae6d41757b06a3617
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SHA512
184cb02123260a2c2fd2803f6d94d83c4d9c5f3836be0a668745732306cb555da60cfaca5248d4a41d2a130eaa435516dc4f1d17a91ce97526add83876316ed9
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SSDEEP
6291456:YJP0TDV0zorf6XgTmaqS8Ly1Z0djIDkfVa:YSCcrf6XgTmaemOyN
Malware Config
Extracted
limerat
bc1qyej3qhu680rqc5akxac39r92g6a8g6r4708gyj
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aes_key
Test
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antivm
true
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c2_url
https://pastebin.com/raw/FU8V31pM
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delay
3
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download_payload
false
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install
true
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install_name
system32s.exe
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main_folder
AppData
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pin_spread
true
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sub_folder
\
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usb_spread
true
Signatures
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Limerat family
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Detects Pyinstaller 1 IoCs
resource yara_rule static1/unpack001/MailRanger/MailRanger.exe pyinstaller -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/MailRanger/MailRanger.exe unpack001/MailRanger/MailUpdate.exe
Files
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MailRanger.rar.rar
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MailRanger/237K HQ Skull.XYZ.txt
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MailRanger/MailRanger.exe.exe windows:5 windows x86 arch:x86
91ae93ed3ff0d6f8a4f22d2edd30a58e
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
Imports
user32
MessageBoxW
MessageBoxA
kernel32
SystemTimeToTzSpecificLocalTime
DecodePointer
GetLastError
SetDllDirectoryW
GetModuleFileNameW
GetProcAddress
GetCommandLineW
GetEnvironmentVariableW
SetEnvironmentVariableW
ExpandEnvironmentStringsW
GetTempPathW
WaitForSingleObject
Sleep
GetExitCodeProcess
CreateProcessW
GetStartupInfoW
LoadLibraryExW
GetShortPathNameW
FormatMessageW
LoadLibraryA
MultiByteToWideChar
WideCharToMultiByte
SetEndOfFile
HeapReAlloc
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetModuleHandleW
RtlUnwind
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetCommandLineA
ReadFile
CreateFileW
GetDriveTypeW
GetFileType
CloseHandle
PeekNamedPipe
RaiseException
FileTimeToSystemTime
GetFullPathNameW
GetFullPathNameA
CreateDirectoryW
RemoveDirectoryW
FindClose
FindFirstFileExW
FindNextFileW
SetStdHandle
SetConsoleCtrlHandler
DeleteFileW
GetStdHandle
WriteFile
ExitProcess
GetModuleHandleExW
GetACP
HeapFree
HeapAlloc
GetConsoleMode
ReadConsoleW
SetFilePointerEx
GetConsoleCP
CompareStringW
LCMapStringW
GetCurrentDirectoryW
FlushFileBuffers
SetEnvironmentVariableA
GetFileAttributesExW
IsValidCodePage
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
GetStringTypeW
GetProcessHeap
WriteConsoleW
GetTimeZoneInformation
HeapSize
ws2_32
ntohl
Sections
.text Size: 123KB - Virtual size: 122KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 44KB - Virtual size: 44KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 2KB - Virtual size: 57KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.gfids Size: 512B - Virtual size: 184B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 115KB - Virtual size: 114KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 6KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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MailRanger.pyc
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MailRanger/MailUpdate.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 27KB - Virtual size: 27KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 41KB - Virtual size: 40KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
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MailRanger/Mailranger2.ini
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MailRanger/Przeczytaj!!!!.txt
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MailRanger/ServerList
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MailRanger/how to mail_1.mp4
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MailRanger/socks4_proxies.txt