vbc[.]exe | Triage

Sharing

Copy URL Twitter E-mail

General

Target

vbc.exe
Size

441KB
MD5

bc0cc1a85676f3201865557a4fffb639
SHA1

5503f934034e2406962dc905768c29a10d30d52e
SHA256

7ee47bece5ac47456a34e3dc46d6c0008e47bb49a4237ce50a314ac9a1129f1a
SHA512

56df98d72df5d76fd6a476be9a46fa54399f5b9edc233e791dbfb977ef75e4ec3f1519a9cac913853de66a81716985afb56c6a6eada524775908aa4b6279494a
SSDEEP

12288:kqtqLly2XVy8XHyG6uLEEAsAcjgrdzIthTC:5gLly2Y8CG6u1njgrJIbG

Score

1^/10

Malware Config

Signatures

NSIS installer 2 IoCs

installer

resource	yara_rule
sample	nsis_installer_1
sample	nsis_installer_2

Files

vbc.exe
.exe windows x86

5f0c714c36e6cc016b3a1f4bc86559e4

Code Sign

0e:83:f0:32:9c:e8:da:99
Certificate

Issuer

CN=Overgeneral,OU=Gofferer Takkebrevene\ ,O=Overgeneral,L=Guincourt,ST=Grand Est,C=FR,1.2.840.113549.1.9.1=#0c1644616d61736b40537472656a6b656e6465732e436f74

Not Before

31/01/2023, 06:56

Not After

30/01/2026, 06:56

Subject

CN=Overgeneral,OU=Gofferer Takkebrevene\ ,O=Overgeneral,L=Guincourt,ST=Grand Est,C=FR,1.2.840.113549.1.9.1=#0c1644616d61736b40537472656a6b656e6465732e436f74

2b:d4:ae:70:b9:d0:63:5b:2a:e9:84:c8:d6:74:aa:30
Certificate

Issuer

CN=Certum Timestamping 2021 CA,O=Asseco Data Systems S.A.,C=PL

Not Before

28/07/2022, 08:56

Not After

27/07/2033, 08:56

Subject

CN=Certum Timestamp 2022,O=Asseco Data Systems S.A.,C=PL

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

e7:ff:69:c7:3b:35:ce:4b:91:26:d8:74:7c:68:a5:87
Certificate

Issuer

CN=Certum Trusted Network CA 2,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Not Before

19/05/2021, 05:32

Not After

18/05/2036, 05:32

Subject

CN=Certum Timestamping 2021 CA,O=Asseco Data Systems S.A.,C=PL

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

1b:b5:8f:25:2a:df:23:00:49:28:c9:ae:3d:7e:ed:27
Certificate

Issuer

CN=Certum Trusted Network CA,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Not Before

31/05/2021, 06:43

Not After

17/09/2029, 06:43

Subject

CN=Certum Trusted Network CA 2,OU=Certum Certification Authority,O=Unizeto Technologies S.A.,C=PL

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

b5:92:a1:1b:40:82:c5:c7:01:0a:1c:94:fb:78:5f:79:fe:0e:06:d4:6a:65:fe:39:81:f9:32:44:00:b9:06:9f
Signer

Actual PE Digest

b5:92:a1:1b:40:82:c5:c7:01:0a:1c:94:fb:78:5f:79:fe:0e:06:d4:6a:65:fe:39:81:f9:32:44:00:b9:06:9f

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

CN=Overgeneral,OU=Gofferer Takkebrevene\ ,O=Overgeneral,L=Guincourt,ST=Grand Est,C=FR,1.2.840.113549.1.9.1=#0c1644616d61736b40537472656a6b656e6465732e436f74

20/01/2023, 15:46
Valid: false

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

RegCreateKeyExA
RegEnumKeyA
RegQueryValueExA
RegSetValueExA
RegCloseKey
RegDeleteValueA
RegDeleteKeyA
AdjustTokenPrivileges
LookupPrivilegeValueA
OpenProcessToken
SetFileSecurityA
RegOpenKeyExA
RegEnumValueA

shell32

SHGetFileInfoA
SHFileOperationA
SHGetPathFromIDListA
ShellExecuteExA
SHGetSpecialFolderLocation
SHBrowseForFolderA

ole32

IIDFromString
OleInitialize
OleUninitialize
CoCreateInstance
CoTaskMemFree

comctl32

ord17
ImageList_Create
ImageList_Destroy
ImageList_AddMasked

user32

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

gdi32

SetBkMode
SetBkColor
GetDeviceCaps
CreateFontIndirectA
CreateBrushIndirect
DeleteObject
SetTextColor
SelectObject

kernel32

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

Sections

.text
Size: 25KB - Virtual size: 24KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1KB - Virtual size: 3.6MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.ndata
Size: - Virtual size: 116KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 83KB - Virtual size: 82KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

5f0c714c36e6cc016b3a1f4bc86559e4

Code Sign

0e:83:f0:32:9c:e8:da:99Certificate

2b:d4:ae:70:b9:d0:63:5b:2a:e9:84:c8:d6:74:aa:30Certificate

Extended Key Usages

Key Usages

e7:ff:69:c7:3b:35:ce:4b:91:26:d8:74:7c:68:a5:87Certificate

Extended Key Usages

Key Usages

1b:b5:8f:25:2a:df:23:00:49:28:c9:ae:3d:7e:ed:27Certificate

Key Usages

b5:92:a1:1b:40:82:c5:c7:01:0a:1c:94:fb:78:5f:79:fe:0e:06:d4:6a:65:fe:39:81:f9:32:44:00:b9:06:9fSigner

Signature Validations

Verification

20/01/2023, 15:46 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

shell32

ole32

comctl32

user32

gdi32

kernel32

Sections

.text Size: 25KB - Virtual size: 24KB

.rdata Size: 5KB - Virtual size: 4KB

.data Size: 1KB - Virtual size: 3.6MB

.ndata Size: - Virtual size: 116KB

.rsrc Size: 83KB - Virtual size: 82KB

0e:83:f0:32:9c:e8:da:99
Certificate

2b:d4:ae:70:b9:d0:63:5b:2a:e9:84:c8:d6:74:aa:30
Certificate

e7:ff:69:c7:3b:35:ce:4b:91:26:d8:74:7c:68:a5:87
Certificate

1b:b5:8f:25:2a:df:23:00:49:28:c9:ae:3d:7e:ed:27
Certificate

b5:92:a1:1b:40:82:c5:c7:01:0a:1c:94:fb:78:5f:79:fe:0e:06:d4:6a:65:fe:39:81:f9:32:44:00:b9:06:9f
Signer

20/01/2023, 15:46
Valid: false

.text
Size: 25KB - Virtual size: 24KB

.rdata
Size: 5KB - Virtual size: 4KB

.data
Size: 1KB - Virtual size: 3.6MB

.ndata
Size: - Virtual size: 116KB

.rsrc
Size: 83KB - Virtual size: 82KB