HEUR-Trojan-Downloader[.]Win32[.]OffLoader[.]gen-fa349a994fa30730603ee832bb67db853f7b81f0e2790a66a88e673d227b2aed

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General

Target

HEUR-Trojan-Downloader.Win32.OffLoader.gen-fa349a994fa30730603ee832bb67db853f7b81f0e2790a66a88e673d227b2aed
Size

737KB
MD5

27a1b8b764bebd2d697ca97d7edf55f8
SHA1

63bba0f011455ec5eee876175700e0c94c48de65
SHA256

fa349a994fa30730603ee832bb67db853f7b81f0e2790a66a88e673d227b2aed
SHA512

61439765d7e350cab53a274fee2eb82da721195654a2494fb1ff8b416f8fa52a6d720e05d42248d1ac02be4807af0c28ff6f6813050885a20f96fd273c8d51aa
SSDEEP

6144:rfL+oq/QjTXfLEgLNClNS3tvIQNtP0JpUEsqquZmZetFZcyR/1YqZLB4MrXKM/7x:rfLgQfLNMgIQkXZmZULZLB+a

Score

3^/10

Malware Config

Signatures

Unsigned PE 3 IoCs

Checks for missing Authenticode signature.

resource
HEUR-Trojan-Downloader.Win32.OffLoader.gen-fa349a994fa30730603ee832bb67db853f7b81f0e2790a66a88e673d227b2aed
unpack001/$PLUGINSDIR/INetC.dll
unpack001/$PLUGINSDIR/MSAIN900.DLL

Files

HEUR-Trojan-Downloader.Win32.OffLoader.gen-fa349a994fa30730603ee832bb67db853f7b81f0e2790a66a88e673d227b2aed
.exe windows:4 windows x86 arch:x86

f4639a0b3116c2cfc71144b88a929cfd

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
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

advapi32

RegEnumValueW
RegEnumKeyW
RegQueryValueExW
RegSetValueExW
RegCloseKey
RegDeleteValueW
RegDeleteKeyW
AdjustTokenPrivileges
LookupPrivilegeValueW
OpenProcessToken
RegOpenKeyExW
RegCreateKeyExW

shell32

SHGetPathFromIDListW
SHBrowseForFolderW
SHGetFileInfoW
SHFileOperationW
ShellExecuteExW

ole32

CoCreateInstance
OleUninitialize
OleInitialize
IIDFromString
CoTaskMemFree

comctl32

ImageList_Destroy
ord17
ImageList_AddMasked
ImageList_Create

user32

MessageBoxIndirectW
GetDlgItemTextW
SetDlgItemTextW
CreatePopupMenu
AppendMenuW
TrackPopupMenu
OpenClipboard
EmptyClipboard
SetClipboardData
CloseClipboard
IsWindowVisible
CallWindowProcW
GetMessagePos
CheckDlgButton
LoadCursorW
SetCursor
GetSysColor
SetWindowPos
GetWindowLongW
IsWindowEnabled
SetClassLongW
GetSystemMenu
EnableMenuItem
GetWindowRect
ScreenToClient
EndDialog
RegisterClassW
SystemParametersInfoW
CharPrevW
GetClassInfoW
DialogBoxParamW
CharNextW
ExitWindowsEx
DestroyWindow
CreateDialogParamW
SetTimer
SetWindowTextW
PostQuitMessage
SetForegroundWindow
ShowWindow
wsprintfW
SendMessageTimeoutW
FindWindowExW
IsWindow
GetDlgItem
SetWindowLongW
LoadImageW
GetDC
ReleaseDC
EnableWindow
InvalidateRect
SendMessageW
DefWindowProcW
BeginPaint
GetClientRect
FillRect
DrawTextW
EndPaint
CharNextA
wsprintfA
DispatchMessageW
CreateWindowExW
PeekMessageW
GetSystemMetrics

gdi32

GetDeviceCaps
SetBkColor
SelectObject
DeleteObject
CreateBrushIndirect
CreateFontIndirectW
SetBkMode
SetTextColor

kernel32

lstrcmpiA
CreateFileW
GetTempFileNameW
RemoveDirectoryW
CreateProcessW
CreateDirectoryW
GetLastError
CreateThread
GlobalLock
GlobalUnlock
GetDiskFreeSpaceW
WideCharToMultiByte
lstrcpynW
lstrlenW
SetErrorMode
GetVersionExW
GetCommandLineW
GetTempPathW
GetWindowsDirectoryW
WriteFile
CopyFileW
ExitProcess
GetCurrentProcess
GetModuleFileNameW
GetFileSize
GetTickCount
Sleep
SetFileAttributesW
GetFileAttributesW
SetCurrentDirectoryW
MoveFileW
GetFullPathNameW
GetShortPathNameW
SearchPathW
CompareFileTime
SetFileTime
CloseHandle
lstrcmpiW
lstrcmpW
ExpandEnvironmentStringsW
GlobalFree
GlobalAlloc
GetModuleHandleW
LoadLibraryExW
FreeLibrary
WritePrivateProfileStringW
GetPrivateProfileStringW
lstrlenA
MultiByteToWideChar
ReadFile
SetFilePointer
FindClose
FindNextFileW
FindFirstFileW
DeleteFileW
MulDiv
lstrcpyA
MoveFileExW
lstrcatW
GetSystemDirectoryW
GetProcAddress
GetModuleHandleA
GetExitCodeProcess
WaitForSingleObject
SetEnvironmentVariableW

Sections

.text
Size: 26KB - Virtual size: 26KB

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: 1KB - Virtual size: 170KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 136KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 16KB - Virtual size: 16KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
$PLUGINSDIR/INetC.dll
.dll windows:4 windows x86 arch:x86

163fdad7b5f915e3a0ca7ad1d08b4ff8

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_NO_SEH

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

Imports

kernel32

lstrcpyW
CreateThread
LocalAlloc
lstrcpynW
SleepEx
MulDiv
GetModuleHandleW
GetTickCount
ReadFile
CreateFileA
CreateFileW
GetFileSize
lstrcmpiW
lstrcatW
LoadLibraryA
lstrcmpW
lstrlenA
MultiByteToWideChar
WriteFile
lstrlenW
CloseHandle
GetLastError
DeleteFileW
GetProcAddress
WideCharToMultiByte
LocalFree
TerminateThread
GlobalAlloc
GlobalFree
SetFilePointer
WaitForSingleObject

user32

wsprintfA
FindWindowExW
GetWindowLongW
IsWindow
CreateDialogParamW
ShowWindow
GetParent
DispatchMessageW
LoadIconW
KillTimer
PostMessageW
IsDialogMessageW
SetWindowPos
SetWindowTextW
GetMessageW
SendDlgItemMessageW
TranslateMessage
EnableWindow
RedrawWindow
UpdateWindow
GetWindowRect
SendMessageW
SetTimer
SetWindowLongW
wsprintfW
SetDlgItemTextW
GetDlgItem
IsWindowVisible
MessageBoxW
GetClientRect
DestroyWindow
SystemParametersInfoW
GetWindowTextW

comctl32

ord17

wininet

HttpSendRequestExW
InternetErrorDlg
InternetWriteFile
HttpSendRequestW
InternetSetFilePointer
HttpAddRequestHeadersA
FtpCreateDirectoryW
InternetCrackUrlW
FtpOpenFileW
InternetSetOptionW
InternetOpenW
InternetGetLastResponseInfoW
HttpEndRequestW
InternetReadFile
HttpAddRequestHeadersW
HttpQueryInfoW
InternetCloseHandle
InternetConnectW
InternetQueryOptionW
HttpOpenRequestW

Exports

Exports

get
head
post
put

Sections

.text
Size: 16KB - Virtual size: 15KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
$PLUGINSDIR/MSAIN900.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

Sections

.rsrc
Size: 624KB - Virtual size: 624KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 4KB - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f4639a0b3116c2cfc71144b88a929cfd

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

shell32

ole32

comctl32

user32

gdi32

kernel32

Sections

.text Size: 26KB - Virtual size: 26KB

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

.data Size: 1KB - Virtual size: 170KB

.ndata Size: - Virtual size: 136KB

.rsrc Size: 16KB - Virtual size: 16KB

163fdad7b5f915e3a0ca7ad1d08b4ff8

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

comctl32

wininet

Exports

Exports

Sections

.text Size: 16KB - Virtual size: 15KB

.data Size: 3KB - Virtual size: 21KB

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

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

Headers

File Characteristics

Sections

.rsrc Size: 624KB - Virtual size: 624KB

.reloc Size: 4KB - Virtual size: 12B

.text
Size: 26KB - Virtual size: 26KB

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

.data
Size: 1KB - Virtual size: 170KB

.ndata
Size: - Virtual size: 136KB

.rsrc
Size: 16KB - Virtual size: 16KB

.text
Size: 16KB - Virtual size: 15KB

.data
Size: 3KB - Virtual size: 21KB

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

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

.rsrc
Size: 624KB - Virtual size: 624KB

.reloc
Size: 4KB - Virtual size: 12B