freebrowser-6[.]2[.]exe

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General

Target
freebrowser-6.2.exe
Size 124.6MB
Sample260620-tr266shs2x
SHA256 bb6339793e669d7b3d98f61c1a66d9fa2118ca050d45a3a76b30ce1a13979468
MD5 8d1f2efa4f3193c1c7cc0cd44da7f043
SHA1 139e011b4b98f4deca4bcac72da5d4e27537078c
SHA512 e276db251e475f05ba0796b1ee9fb45137937bd393a481d138cee33a9493c20fb1b4ce4546d0eb31fc7f0839bb553f87aa0f16e6abb909dc6e16314cebb38d74
SSDEEP 3145728:zOxme/wy6slaYFj26DMfRngZHV1wj1sUf2ac+Ou:c5VxgYFyvZngpPzUfPIu
TLSH
T18E58332073516AF2D8A2D9F28C258523641171CF7A7BC0FA37B1F3216E24195EDCE99E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 5 IoCs

Checks for missing Authenticode signature.

resource
freebrowser-6.2.exe
unpack001/$LOCALAPPDATA/Chromium/Application/$0
unpack001/$PLUGINSDIR/LangDLL.dll
unpack001/$PLUGINSDIR/System.dll
unpack001/$PLUGINSDIR/nsDialogs.dll

File Explorer

freebrowser-6.2.exe

.exe 124.6MB
$LOCALAPPDATA/Chromium/Application/$0

.exe 124.5MB
$PLUGINSDIR/LangDLL.dll

.dll 5KB
$PLUGINSDIR/System.dll

.dll 12KB
$PLUGINSDIR/modern-wizard.bmp

25KB
$PLUGINSDIR/nsDialogs.dll

.dll 9KB

freebrowser-6.2.exe

IMPHASH f4639a0b3116c2cfc71144b88a929cfd
SHA256 bb6339793e669d7b3d98f61c1a66d9fa2118ca050d45a3a76b30ce1a13979468
MD5 8d1f2efa4f3193c1c7cc0cd44da7f043
SHA1 139e011b4b98f4deca4bcac72da5d4e27537078c
SHA512 e276db251e475f05ba0796b1ee9fb45137937bd393a481d138cee33a9493c20fb1b4ce4546d0eb31fc7f0839bb553f87aa0f16e6abb909dc6e16314cebb38d74
SSDEEP 3145728:zOxme/wy6slaYFj26DMfRngZHV1wj1sUf2ac+Ou:c5VxgYFyvZngpPzUfPIu
TLSH
T18E58332073516AF2D8A2D9F28C258523641171CF7A7BC0FA37B1F3216E24195EDCE99E
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

13650

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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

PDB paths

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

$LOCALAPPDATA/Chromium/Application/$0

IMPHASH 43a3272608a3f56bc18896b9f53f2439
SHA256 f6d4b0186dddd14eebc8c90e692123e4286fb138685a31e04cdbbc24549515b7
MD5 d6488f9d10e6f6b9c4b9594d943bb4ef
SHA1 1ab15ad17aa7d9440645dcdb054e234c66488c34
SHA512 0eece32ec02a31c7f77077fd36c5fe37ae1357c67e375975fd28d66054c02955346fc2ad55ca2e95a297d3bee6d9bb110e5e3020f0e726c3e0fd4f14be73cc2e
SSDEEP 3145728:xxme/wy6slaYFj26DMfRngZHV1wj1sUf2ac+O:f5VxgYFyvZngpPzUfPI
TLSH
T1C4583320735169F2D8A2D9F28C258523641172CFBA7BC0FA37B2F3215E24155EDCE99E
MD5 SHA1 SHA512 SSDEEP TLSH

windows:10 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

14640

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_GUARD_CF IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

mini_installer.exe.pdb

Name

.text

Size

13KB

Virtual Size

12KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

4KB

Virtual Size

4KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

512B

Virtual Size

176B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

1024B

Virtual Size

564B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.retplne

Size

512B

Virtual Size

140B

Characteristics

Name

.rsrc

Size

124.5MB

Virtual Size

124.5MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

512B

Virtual Size

36B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

$PLUGINSDIR/LangDLL.dll

IMPHASH fe3375e7e4529b73ba45ab2246b9269b
SHA256 131aa0df90c08dce2eecee46cce8759e9afff04bf15b7b0002c2a53ae5e92c36
MD5 549ee11198143574f4d9953198a09fe8
SHA1 2e89ba5f30e1c1c4ce517f28ec1505294bb6c4c1
SHA512 0fb4cea4fd320381fe50c52d1c198261f0347d6dcee857917169fcc3e2083ed4933beff708e81d816787195cca050f3f5f9c5ac9cc7f781831b028ef5714bec8
SSDEEP 48:S46+/sTKYKxbWsptIp5tCZ0iVEAWyMEv9v/ft2O2B8mWofjLl:z+uPbO5tCZBVEAWyMEFv2Cm9L
TLSH
T1D5C1A370B3D248B9C591413778AB33D36612AE747784504FDB6311AA3820AE7AD3EBC2
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

5439

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_DLL

PDB paths

$PLUGINSDIR/System.dll

IMPHASH 509a34b3a68a773e0afb4259e68f9f82
SHA256 23d618a0293c78ce00f7c6e6dd8b8923621da7dd1f63a070163ef4c0ec3033d6
MD5 192639861e3dc2dc5c08bb8f8c7260d5
SHA1 58d30e460609e22fa0098bc27d928b689ef9af78
SHA512 6e573d8b2ef6ed719e271fd0b2fd9cd451f61fc9a9459330108d6d7a65a0f64016303318cad787aa1d5334ba670d8f1c7c13074e1be550b4a316963ecc465cdc
SSDEEP 192:ljHcQ0qWTlt7wi5Aj/lM0sEWD/wtYbBjpNQybC7y+XZqE0QPi:R/Qlt7wiij/lMRv/9V4bfr
TLSH
T1B1427C1297B089F2F551493419667F2A6FBEAC5C13F405A3CFE304C63D212CB9839243
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

10879

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_DLL

PDB paths

$PLUGINSDIR/nsDialogs.dll

IMPHASH 3b477381217c97b22146297f93df2a92
SHA256 89a82c4849c21dfe765052681e1fad02d2d7b13c8b5075880c52423dca72a912
MD5 b7d61f3f56abf7b7ff0d4e7da3ad783d
SHA1 15ab5219c0e77fd9652bc62ff390b8e6846c8e3e
SHA512 6467c0de680fadb8078bdaa0d560d2b228f5a22d4d8358a1c7d564c6ebceface5d377b870eaf8985fbee727001da569867554154d568e3b37f674096bbafafb8
SSDEEP 96:ooEv02zUu56FcS817eTaXx85qHFcUcxSgB5PKtAtoniJninnt3DVEB3YMNqkzfFc:ooEvCu5e81785qHFcU0PuAw0uyyIFc
TLSH
T16A12F992E2A454B3C5D6523B35AA2F2DCBBD5329B0927C01C7738E4D393957A6E38343
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

7527

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

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_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_DLL

PDB paths

freebrowser-6.2.exe

advapi32

shell32

ole32

comctl32

user32

gdi32

kernel32

generic

$LOCALAPPDATA/Chromium/Application/$0

advapi32

shell32

kernel32

generic

$PLUGINSDIR/LangDLL.dll

kernel32

user32

gdi32

generic

$PLUGINSDIR/System.dll

kernel32

user32

ole32

generic

$PLUGINSDIR/modern-wizard.bmp

$PLUGINSDIR/nsDialogs.dll

kernel32

user32

gdi32

shell32

comdlg32

ole32

generic