Install Mullvad VPN[.]exe

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General

Target
Install Mullvad VPN.exe
Size 2.7MB
Sample260719-bctmdabv2s
SHA256 253323fd74dc963eb545505b04bc2616d0cd486fb46377f4d1e521f284950e67
MD5 5d193ec22603a9faf26463424a808e95
SHA1 123ff2d12df1a9cfbcc7554433bca125e5e14d7a
SHA512 5186847a2a4713e2963138601e680741b3df8de38b18efa5688e1d175afa69500646637c473fed2988598e35d92a617249c7d471b3c3e33400d15a6068111c30
SSDEEP 49152:+TFXFV/7v36WsUC9OR1Mx1Tg+skW6jNtMXZBi2azI74IU6iTYK:qFXFVT2UC9O/AswbKt77H+TYK
TLSH
T1BAD55C0FE69582F8C0BAD0749346F733AA3278890722799B57F45A11AFE5B405F6CB07
MD5 SHA1 SHA512 SSDEEP TLSH

Score

1^/10

Malware Config

Signatures

File Explorer

Install Mullvad VPN.exe

.exe 2.7MB

Install Mullvad VPN.exe

IMPHASH a21838b418b38f2cff0313a9977630d4
SHA256 253323fd74dc963eb545505b04bc2616d0cd486fb46377f4d1e521f284950e67
MD5 5d193ec22603a9faf26463424a808e95
SHA1 123ff2d12df1a9cfbcc7554433bca125e5e14d7a
SHA512 5186847a2a4713e2963138601e680741b3df8de38b18efa5688e1d175afa69500646637c473fed2988598e35d92a617249c7d471b3c3e33400d15a6068111c30
SSDEEP 49152:+TFXFV/7v36WsUC9OR1Mx1Tg+skW6jNtMXZBi2azI74IU6iTYK:qFXFVT2UC9O/AswbKt77H+TYK
TLSH
T1BAD55C0FE69582F8C0BAD0749346F733AA3278890722799B57F45A11AFE5B405F6CB07
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

Digest

98:34:9a:9c:cb:f4:9a:87:98:28:99:8e:a4:45:1c:7d:4f:18:9d:0a:dc:3d:16:3c:e9:f9:63:78:8f:38:36:a9

Digest Algorithm

sha256

PE Digests Matches

Trusted

Signing Certificate

SERIALNUMBER=559238-4001,CN=Mullvad VPN AB,O=Mullvad VPN AB,L=Göteborg,C=SE,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025345

Chains

Jun 9, 2026

SERIALNUMBER=559238-4001,CN=Mullvad VPN AB,O=Mullvad VPN AB,L=Göteborg,C=SE,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025345

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

SERIALNUMBER=559238-4001,CN=Mullvad VPN AB,O=Mullvad VPN AB,L=Göteborg,C=SE,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025345

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Serial Number

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageCodeSigning

Revocation Status

Not revoked

Timespan

Apr 29, 2021 - Apr 28, 2036

Subject

SERIALNUMBER=559238-4001,CN=Mullvad VPN AB,O=Mullvad VPN AB,L=Göteborg,C=SE,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025345

Serial Number

07:80:50:bb:c1:00:f2:ff:af:0f:e0:3b:15:fe:22:1a

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageCodeSigning

Revocation Status

Not revoked

Timespan

Mar 14, 2024 - Feb 6, 2027

Subject

CN=DigiCert SHA256 RSA4096 Timestamp Responder 2025 1,O=DigiCert\, Inc.,C=US

Serial Number

0a:80:ef:18:4b:8d:f1:05:82:d1:c4:76:a7:95:74:68

Issuer

CN=DigiCert Trusted G4 TimeStamping RSA4096 SHA256 2025 CA1,O=DigiCert\, Inc.,C=US

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Jun 4, 2025 - Sep 3, 2036

Subject

CN=DigiCert Trusted G4 TimeStamping RSA4096 SHA256 2025 CA1,O=DigiCert\, Inc.,C=US

Serial Number

0d:c7:ac:57:05:ff:21:99:2e:40:43:22:0c:3a:49:86

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

May 7, 2025 - Jan 14, 2038

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Serial Number

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Revocation Status

Not revoked

Timespan

Aug 1, 2022 - Nov 9, 2031

Minor OS version

Major OS version

Entry point

1632244

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_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

installer_downloader.pdb

bcryptprimitives

ProcessPrng

user32

ShowWindow EnumChildWindows GetMessageW GetAncestor IsDialogMessageW GetMonitorInfoW MonitorFromWindow TranslateMessage SetWindowTextW UpdateWindow InvalidateRect SetWindowLongPtrW GetWindowLongPtrW SetParent GetParent DeleteMenu GetMenuItemCount SendMessageW DestroyMenu IsWindow CreateWindowExW AdjustWindowRectEx DrawTextW DispatchMessageW FillRect ScreenToClient GetWindowRect GetWindowTextW ReleaseDC GetDC SetWindowPos GetSubMenu GetMenuItemID GetClassNameW GetClientRect MessageBoxW DefWindowProcW RegisterClassExW LoadCursorW LoadImageW DestroyIcon PostMessageW DestroyWindow GetWindowTextLengthW SetFocus

kernel32

CancelIoEx HeapFree GetProcessHeap GetCurrentThread LocalFree FlsFree FlsSetValue FlsGetValue FlsAlloc SetFileCompletionNotificationModes CreateIoCompletionPort VirtualProtect GetStringTypeW GetFileType SetStdHandle GetCPInfo GetOEMCP GetACP IsValidCodePage GetModuleHandleExW ExitProcess RtlPcToFileHeader SetThreadStackGuarantee FreeLibrary TlsFree TlsSetValue TlsGetValue TlsAlloc RaiseException EncodePointer IsProcessorFeaturePresent GetStartupInfoW IsDebuggerPresent GetSystemTimeAsFileTime GetQueuedCompletionStatusEx GetFinalPathNameByHandleW HeapSize FlushFileBuffers GetExitCodeProcess WaitForSingleObject TerminateProcess ReadFile CreateFileW GetLastError IsWow64Process2 GetCurrentProcess GetCurrentThreadId RtlLookupFunctionEntry WaitForSingleObjectEx LoadLibraryA GetProcAddress GetCurrentProcessId CreateMutexA WideCharToMultiByte ReleaseMutex GetStdHandle GetConsoleMode GetConsoleOutputCP PostQueuedCompletionStatus MultiByteToWideChar WriteConsoleW HeapAlloc GetModuleHandleW ReadFileEx SleepEx WriteFileEx FormatMessageW GetTempFileNameW GetTempPathW SetHandleInformation CreateThread GetModuleHandleA GetFullPathNameW SetFileTime SetFileInformationByHandle FindFirstFileExW FindClose GetFileInformationByHandle GetFileInformationByHandleEx GetSystemTimePreciseAsFileTime CreateDirectoryW CompareStringOrdinal GetModuleFileNameW GetSystemDirectoryW GetWindowsDirectoryW CreateProcessW GetFileAttributesW DuplicateHandle GetSystemInfo DeleteFileW CreateWaitableTimerExW SetWaitableTimer Sleep lstrlenW WriteFile SetFilePointerEx UnregisterWaitEx GetOverlappedResult SetLastError CompareStringW CreateSymbolicLinkW FindNextFileW LCMapStringW RegisterWaitForSingleObject CloseHandle SwitchToThread HeapReAlloc LoadLibraryExW InitializeCriticalSectionEx FreeEnvironmentStringsW InitializeCriticalSectionAndSpinCount CreateActCtxW ActivateActCtx SetEnvironmentVariableW AddVectoredExceptionHandler RtlCaptureContext RtlVirtualUnwind GetCurrentDirectoryW GetEnvironmentVariableW InitializeSListHead GetCommandLineW QueryPerformanceFrequency UnhandledExceptionFilter QueryPerformanceCounter GetEnvironmentStringsW GetCommandLineA SetUnhandledExceptionFilter DeleteCriticalSection LeaveCriticalSection EnterCriticalSection RtlUnwindEx

comctl32

RemoveWindowSubclass DefSubclassProc SetWindowSubclass GetWindowSubclass InitCommonControlsEx

gdi32

SetTextColor CreateFontIndirectW CreateDIBSection CreateSolidBrush DeleteObject SelectObject SetBkMode SetBkColor CreateFontW

shell32

DragFinish SHGetKnownFolderPath

combase

CoTaskMemFree

ole32

CoCreateInstance CoInitialize

ntdll

RtlNtStatusToDosError NtCancelIoFileEx NtDeviceIoControlFile NtReadFile NtCreateFile NtWriteFile NtCreateNamedPipeFile NtOpenFile

api-ms-win-core-synch-l1-2-0

WaitOnAddress WakeByAddressSingle WakeByAddressAll

ws2_32

getsockname freeaddrinfo getpeername WSAGetLastError WSAIoctl WSASend shutdown recv closesocket WSASocketW ioctlsocket connect getsockopt setsockopt bind send WSAStartup WSACleanup getaddrinfo

advapi32

SetNamedSecurityInfoW CreateWellKnownSid SetEntriesInAclW SystemFunction036

shlwapi

SHCreateMemStream

windowscodecs

WICConvertBitmapSource

bcrypt

BCryptGenRandom

Name

.text

Size

1.6MB

Virtual Size

1.6MB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

781KB

Virtual Size

781KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

5KB

Virtual Size

18KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

56KB

Virtual Size

56KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.fptable

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

197KB

Virtual Size

197KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

13KB

Virtual Size

13KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

Install Mullvad VPN.exe

bcryptprimitives

user32

kernel32

comctl32

gdi32

shell32

combase

ole32

ntdll

api-ms-win-core-synch-l1-2-0

ws2_32

advapi32

shlwapi

windowscodecs

bcrypt

generic