Polyverse_RSA_KeyGen[.]exe

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General

Target

Polyverse_RSA_KeyGen.exe
Size

868KB
MD5

112d83192a763db71ec0bfec5ac976f5
SHA1

d61a20fdd1875efefd5e256c444b79674d7b0fcb
SHA256

3cf7d76e792090bd41bbc41396a5b5d36599f8b0e43b29d65464b337c7d22c23
SHA512

789a1605def4b75c7aedcf4c43748db60f114c926dabeb29d43826c48a058201502cc212a532dabf83d9b60d0100041a13ef61bee6ad421731f03dcd470d7787
SSDEEP

12288:Uc9t2SllJ1YnROcPBzvJdpaM4y3WSvE2+sU5RiwOqpeYj9sh2hbGwpGn8WPh7:UcLja8cZlZHU5RiwOq19sUbGwpGnt7

Score

3^/10

Malware Config

Signatures

Unsigned PE 4 IoCs

Checks for missing Authenticode signature.

resource
Polyverse_RSA_KeyGen.exe
unpack001/$TEMP/BASSMOD.dll
unpack001/$TEMP/R2RPVRSA.dll
unpack001/$TEMP/keygen.exe

NSIS installer 2 IoCs

installer

resource	yara_rule
sample	nsis_installer_1
sample	nsis_installer_2

Files

Polyverse_RSA_KeyGen.exe
.exe windows:4 windows x86 arch:x86

b1a57b635b23ffd553b3fd1e0960b2bd

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

GetTickCount
GetShortPathNameA
GetFullPathNameA
MoveFileA
SetCurrentDirectoryA
GetFileAttributesA
SetFileAttributesA
CompareFileTime
SearchPathA
CreateFileA
GetFileSize
GetModuleFileNameA
GetCurrentProcess
CopyFileA
ExitProcess
GetWindowsDirectoryA
Sleep
lstrcmpiA
lstrlenA
GetVersion
SetErrorMode
lstrcpynA
GetDiskFreeSpaceA
GlobalUnlock
GlobalLock
CreateThread
GetLastError
CreateDirectoryA
CreateProcessA
RemoveDirectoryA
GetTempFileNameA
lstrcatA
GetSystemDirectoryA
WaitForSingleObject
SetFileTime
CloseHandle
GlobalFree
lstrcmpA
ExpandEnvironmentStringsA
GetExitCodeProcess
GlobalAlloc
GetCommandLineA
GetTempPathA
GetProcAddress
FindFirstFileA
FindNextFileA
DeleteFileA
SetFilePointer
ReadFile
FindClose
GetPrivateProfileStringA
WritePrivateProfileStringA
WriteFile
MulDiv
MultiByteToWideChar
LoadLibraryExA
GetModuleHandleA
FreeLibrary

user32

SetCursor
GetWindowRect
EnableMenuItem
GetSystemMenu
SetClassLongA
IsWindowEnabled
SetWindowPos
GetSysColor
EndDialog
ScreenToClient
LoadCursorA
CheckDlgButton
GetMessagePos
LoadBitmapA
CallWindowProcA
IsWindowVisible
CloseClipboard
SetForegroundWindow
GetWindowLongA
RegisterClassA
TrackPopupMenu
AppendMenuA
CreatePopupMenu
GetSystemMetrics
SetDlgItemTextA
GetDlgItemTextA
MessageBoxIndirectA
CharPrevA
DispatchMessageA
PeekMessageA
GetDC
EnableWindow
InvalidateRect
SendMessageA
DefWindowProcA
BeginPaint
GetClientRect
FillRect
DrawTextA
SystemParametersInfoA
CreateWindowExA
GetClassInfoA
DialogBoxParamA
CharNextA
ExitWindowsEx
SetTimer
PostQuitMessage
SetWindowLongA
SendMessageTimeoutA
LoadImageA
wsprintfA
GetDlgItem
FindWindowExA
IsWindow
SetClipboardData
EmptyClipboard
OpenClipboard
EndPaint
CreateDialogParamA
DestroyWindow
ShowWindow
SetWindowTextA

gdi32

SelectObject
SetBkMode
CreateFontIndirectA
SetTextColor
DeleteObject
GetDeviceCaps
CreateBrushIndirect
SetBkColor

shell32

SHGetSpecialFolderLocation
SHGetPathFromIDListA
SHBrowseForFolderA
SHGetFileInfoA
SHFileOperationA
ShellExecuteA

advapi32

RegDeleteValueA
SetFileSecurityA
RegOpenKeyExA
RegDeleteKeyA
RegEnumValueA
RegCloseKey
RegCreateKeyExA
RegSetValueExA
RegQueryValueExA
RegEnumKeyA

comctl32

ImageList_AddMasked
ImageList_Destroy
ImageList_Create
ord17

ole32

OleUninitialize
OleInitialize
CoTaskMemFree
CoCreateInstance

Sections

.text
Size: 23KB - Virtual size: 23KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1KB - Virtual size: 108KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 32KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 138KB - Virtual size: 138KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
$TEMP/BASSMOD.dll
.dll windows:4 windows x86 arch:x86

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Exports

Exports

BASSMOD_ErrorGetCode
BASSMOD_Free
BASSMOD_GetCPU
BASSMOD_GetDeviceDescription
BASSMOD_GetVersion
BASSMOD_GetVolume
BASSMOD_Init
BASSMOD_MusicDecode
BASSMOD_MusicFree
BASSMOD_MusicGetLength
BASSMOD_MusicGetName
BASSMOD_MusicGetPosition
BASSMOD_MusicGetVolume
BASSMOD_MusicIsActive
BASSMOD_MusicLoad
BASSMOD_MusicPause
BASSMOD_MusicPlay
BASSMOD_MusicPlayEx
BASSMOD_MusicRemoveSync
BASSMOD_MusicSetAmplify
BASSMOD_MusicSetPanSep
BASSMOD_MusicSetPosition
BASSMOD_MusicSetPositionScaler
BASSMOD_MusicSetSync
BASSMOD_MusicSetVolume
BASSMOD_MusicStop
BASSMOD_SetVolume

Sections

Size: 31KB - Virtual size: 68KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
$TEMP/R2RPVRSA.dll
.dll windows:5 windows x86 arch:x86

9d484b93f4f53dbe7f481b391053ccd4

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

msvcrt

sprintf
calloc
free
memcmp
memcpy
memset
realloc

advapi32

CryptGenRandom
CryptAcquireContextA

Exports

Exports

GenerateLicense

Sections

.text
Size: 42KB - Virtual size: 41KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
$TEMP/bgm.xm
$TEMP/keygen.exe
.exe windows:4 windows x86 arch:x86

61baf0ac33a569be37eaea52c317de1e

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Imports

comctl32

_TrackMouseEvent
ord17

msimg32

GradientFill

kernel32

FreeEnvironmentStringsA
UnhandledExceptionFilter
VirtualQuery
VirtualProtect
GetStringTypeW
GetStringTypeA
IsValidCodePage
IsValidLocale
EnumSystemLocalesA
GetLocaleInfoA
GetUserDefaultLCID
GetCPInfo
GetOEMCP
GetACP
HeapSize
SetUnhandledExceptionFilter
WriteFile
GetFileType
GetStdHandle
SetHandleCount
IsBadWritePtr
VirtualAlloc
VirtualFree
HeapCreate
HeapDestroy
ReadFile
CloseHandle
LCMapStringW
LCMapStringA
SetFilePointer
GetCurrentProcess
TerminateProcess
ExitProcess
GetVersionExA
GetStartupInfoA
GetModuleHandleA
SetCurrentDirectoryA
SetEnvironmentVariableA
CreateDirectoryA
GetFullPathNameA
GetCurrentDirectoryA
GetDriveTypeA
HeapReAlloc
RtlUnwind
RaiseException
HeapFree
HeapAlloc
FreeEnvironmentStringsW
GetEnvironmentStringsW
SetStdHandle
FlushFileBuffers
CreateFileA
IsBadReadPtr
IsBadCodePtr
QueryPerformanceCounter
GetLocalTime
FindFirstFileA
FindNextFileA
GetLastError
FindClose
DeleteFileA
GetShortPathNameA
GlobalLock
GlobalUnlock
MulDiv
GlobalAlloc
GlobalFree
WideCharToMultiByte
MultiByteToWideChar
WinExec
GetWindowsDirectoryA
GetSystemDirectoryA
GetSystemInfo
GlobalMemoryStatus
GetVersion
GetComputerNameA
FreeLibrary
LoadLibraryA
GetProcAddress
GetCommandLineA
Sleep
GetTickCount
GetModuleFileNameA
GetLocaleInfoW
GetCurrentThreadId
GetCurrentProcessId
GetSystemTimeAsFileTime
InterlockedExchange
SetEndOfFile
GetEnvironmentStrings

user32

UnregisterClassA
AdjustWindowRectEx
LoadIconA
LoadCursorA
RegisterClassA
PostQuitMessage
DefWindowProcA
InvalidateRect
BeginPaint
EndPaint
FillRect
TabbedTextOutA
GetSysColor
MoveWindow
ReleaseDC
GetClassLongA
SetClassLongA
SetWindowLongA
IsWindowEnabled
EnableWindow
SetFocus
GetFocus
GetWindowLongA
GetClientRect
InflateRect
DrawFocusRect
DrawTextA
PostMessageA
SetWindowTextA
GetDlgItemTextA
GetDlgCtrlID
IsDlgButtonChecked
CallWindowProcA
FindWindowA
MsgWaitForMultipleObjects
PeekMessageA
GetMessageA
TranslateMessage
DispatchMessageA
MapVirtualKeyA
GetWindowRect
SetActiveWindow
SetWindowPos
GetAsyncKeyState
GetCursorPos
ShowCursor
SetCursorPos
MessageBoxA
EnumDisplaySettingsA
ChangeDisplaySettingsA
CreateWindowExA
ShowWindow
SendMessageA
DestroyWindow
GetDC
GetSystemMetrics
GetActiveWindow

gdi32

CreateDIBSection
CreateCompatibleDC
Rectangle
DeleteDC
SetBkColor
SetStretchBltMode
StretchBlt
Ellipse
MoveToEx
LineTo
SetPixel
GetPixel
GetTextExtentPoint32A
SetDIBColorTable
CreatePalette
CreatePen
GetTextMetricsA
SelectPalette
RealizePalette
BitBlt
SelectObject
SetBkMode
SetTextColor
GetStockObject
CreateFontIndirectA
DeleteObject
CreateSolidBrush
GetDeviceCaps

comdlg32

GetSaveFileNameA
ChooseColorA
GetOpenFileNameA

advapi32

GetUserNameA

shell32

ShellExecuteA
ShellExecuteExA
SHGetSpecialFolderPathA

ole32

CoCreateInstance
IIDFromString
CLSIDFromProgID
CoUninitialize
CreateStreamOnHGlobal
OleUninitialize
CoInitializeEx
OleInitialize

oleaut32

SafeArrayGetUBound
SafeArrayGetLBound
SafeArrayGetVartype
SafeArrayCopy
OleLoadPicture
SafeArrayGetElement
VariantClear
VariantInit
SafeArrayAccessData
SafeArrayGetDim
SafeArrayUnaccessData
SafeArrayCreate
SysFreeString
SysAllocStringByteLen
VariantChangeType
VariantCopyInd
VariantCopy
SysAllocString
SafeArrayPutElement

winmm

sndPlaySoundA
mciSendStringA
timeEndPeriod
timeGetDevCaps
timeBeginPeriod
timeGetTime

Sections

.text
Size: 197KB - Virtual size: 200KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 34KB - Virtual size: 36KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 16KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

b1a57b635b23ffd553b3fd1e0960b2bd

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

shell32

advapi32

comctl32

ole32

Sections

.text Size: 23KB - Virtual size: 23KB

.rdata Size: 4KB - Virtual size: 4KB

.data Size: 1KB - Virtual size: 108KB

.ndata Size: - Virtual size: 32KB

.rsrc Size: 138KB - Virtual size: 138KB

Headers

File Characteristics

Exports

Exports

Sections

Size: 31KB - Virtual size: 68KB

Size: 2KB - Virtual size: 1KB

9d484b93f4f53dbe7f481b391053ccd4

Headers

File Characteristics

Imports

msvcrt

advapi32

Exports

Exports

Sections

.text Size: 42KB - Virtual size: 41KB

.rdata Size: 5KB - Virtual size: 5KB

.data Size: 512B - Virtual size: 1KB

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

61baf0ac33a569be37eaea52c317de1e

Headers

File Characteristics

Imports

comctl32

msimg32

kernel32

user32

gdi32

comdlg32

advapi32

shell32

ole32

oleaut32

winmm

Sections

.text Size: 197KB - Virtual size: 200KB

.rdata Size: 34KB - Virtual size: 36KB

.data Size: 5KB - Virtual size: 16KB

.text
Size: 23KB - Virtual size: 23KB

.rdata
Size: 4KB - Virtual size: 4KB

.data
Size: 1KB - Virtual size: 108KB

.ndata
Size: - Virtual size: 32KB

.rsrc
Size: 138KB - Virtual size: 138KB

.text
Size: 42KB - Virtual size: 41KB

.rdata
Size: 5KB - Virtual size: 5KB

.data
Size: 512B - Virtual size: 1KB

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

.text
Size: 197KB - Virtual size: 200KB

.rdata
Size: 34KB - Virtual size: 36KB

.data
Size: 5KB - Virtual size: 16KB