Voice[.]ai-Downloader-alphaver-9b69c1da713349ccb07cbe0431d0c911[.]exe

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General

Target
Voice.ai-Downloader-alphaver-9b69c1da713349ccb07cbe0431d0c911.exe
Size 476KB
Sample240224-ryb78afc6v
SHA256 23ecba0be777d9b7a5683d0939d9ae17c4427c46e51ff959e91785d83c60efd1
MD5 b8162dccc95c2ed40a3fd946dd127242
SHA1 27899142d055dcce7ad3288028c8e3187421275c
SHA512 51eef114974531407df6e04af725855293db7e5bdd2e311af5b14dcbef70de9759ae00fa1c17bb72351697fb8d8cf163a1072e957430d33ca90dffeadf0eefbb
SSDEEP 3072:AkBGWOsTIJgIDU5A/cto68pMABlZQ2wpFD0ravSGKBUGYDxJ0y5t8:A1ssjn5Mp2w7g+VKvSA
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 3 IoCs

Checks for missing Authenticode signature.

resource
unpack001/$PLUGINSDIR/INetC.dll
unpack001/$PLUGINSDIR/System.dll
unpack001/$PLUGINSDIR/nsProcess.dll

NSIS installer 2 IoCs

installer

resource	yara_rule
sample	nsis_installer_1
sample	nsis_installer_2

File Explorer

Voice.ai-Downloader-alphaver-9b69c1da713349ccb07cbe0431d0c911.exe

.exe 476KB
$PLUGINSDIR/INetC.dll

.dll 21KB
$PLUGINSDIR/System.dll

.dll 12KB
$PLUGINSDIR/nsProcess.dll

.dll 4KB

Voice.ai-Downloader-alphaver-9b69c1da713349ccb07cbe0431d0c911.exe

IMPHASH 5f0c714c36e6cc016b3a1f4bc86559e4
SHA256 23ecba0be777d9b7a5683d0939d9ae17c4427c46e51ff959e91785d83c60efd1
MD5 b8162dccc95c2ed40a3fd946dd127242
SHA1 27899142d055dcce7ad3288028c8e3187421275c
SHA512 51eef114974531407df6e04af725855293db7e5bdd2e311af5b14dcbef70de9759ae00fa1c17bb72351697fb8d8cf163a1072e957430d33ca90dffeadf0eefbb
SSDEEP 3072:AkBGWOsTIJgIDU5A/cto68pMABlZQ2wpFD0ravSGKBUGYDxJ0y5t8:A1ssjn5Mp2w7g+VKvSA
MD5 SHA1 SHA512 SSDEEP

windows:4 windows x86 arch:x86

NSIS installer

installer

Digest

40:67:db:7b:8b:41:55:de:92:55:cc:27:d0:57:de:ec:6f:82:60:c3

Digest Algorithm

sha1

PE Digests Matches

Trusted

Signing Certificate

SERIALNUMBER=470281,CN=Voice AI LLC,O=Voice AI LLC,L=San Juan,C=PR,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025052

Chains

Sep 22, 2023

SERIALNUMBER=470281,CN=Voice AI LLC,O=Voice AI LLC,L=San Juan,C=PR,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025052

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=470281,CN=Voice AI LLC,O=Voice AI LLC,L=San Juan,C=PR,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025052

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 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

Timespan

Aug 1, 2022 - Nov 9, 2031

Subject

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

Serial Number

05:9b:1b:57:9e:8e:21:32:e2:39:07:bd:a7:77:75:5c

Issuer

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

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Timespan

Aug 1, 2013 - Jan 15, 2038

Subject

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

Serial Number

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b

Issuer

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

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Timespan

Mar 23, 2022 - Mar 22, 2037

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

Timespan

Apr 29, 2021 - Apr 28, 2036

Subject

CN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,C=US

Serial Number

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16

Issuer

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

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageTimeStamping

Timespan

Jul 14, 2023 - Oct 13, 2034

Subject

SERIALNUMBER=470281,CN=Voice AI LLC,O=Voice AI LLC,L=San Juan,C=PR,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025052

Serial Number

0d:2f:2a:75:63:f6:db:df:98:8e:db:03:fe:57:59:33

Issuer

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

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageCodeSigning

Timespan

Jun 14, 2023 - Jun 13, 2024

Minor OS version

Major OS version

Entry point

13235

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

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

$PLUGINSDIR/INetC.dll

IMPHASH 8e4c63f70f7cc6490634d743e795c93e
SHA256 2d5d89025911e2e273f90f393624be4819641dbee1606de792362e442e54612f
MD5 2b342079303895c50af8040a91f30f71
SHA1 b11335e1cb8356d9c337cb89fe81d669a69de17e
SHA512 550452dadc86ecd205f40668894116790a456fe46e9985d68093d36cf32abf00edecb5c56ff0287464a0e819db7b3cc53926037a116de6c651332a7cc8035d47
SSDEEP 384:KOoVVefeWsI7rsIquPLNN546o0Ac9khYLMkIX0+Gzyekv:4VVaeE7wIqyJN5i
MD5 SHA1 SHA512 SSDEEP

windows:4 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.
NSIS installer

installer

Minor OS version

Major OS version

Entry point

16201

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_NO_SEH

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_DLL

PDB paths

kernel32

TerminateThread CreateThread LocalAlloc lstrcpyA WaitForSingleObject MulDiv ReadFile GetModuleHandleA SleepEx lstrcatA GetTickCount CreateFileA GetFileSize DeleteFileA lstrcmpA lstrcmpiA SetFilePointer WriteFile GetProcAddress CloseHandle lstrlenA LoadLibraryA lstrcpynA LocalFree GlobalAlloc GlobalFree GetLastError WideCharToMultiByte

user32

LoadIconA SystemParametersInfoA GetWindowLongA GetParent MessageBoxA DispatchMessageA SetWindowLongA KillTimer PostMessageA IsWindow GetWindowTextA ShowWindow SendDlgItemMessageA TranslateMessage IsDialogMessageA CreateDialogParamA SetDlgItemTextA GetWindowRect SetWindowPos SetTimer SendMessageA RedrawWindow GetClientRect EnableWindow FindWindowExA UpdateWindow GetMessageA GetDlgItem wsprintfA DestroyWindow SetWindowTextA IsWindowVisible

comctl32

ord17

wininet

InternetSetOptionA InternetQueryOptionA FtpCreateDirectoryA InternetConnectA InternetWriteFile FtpOpenFileA InternetSetFilePointer HttpEndRequestA HttpAddRequestHeadersA HttpSendRequestA InternetGetLastResponseInfoA InternetOpenA InternetCrackUrlA HttpOpenRequestA HttpSendRequestExA InternetCloseHandle InternetReadFile HttpQueryInfoA InternetErrorDlg

$PLUGINSDIR/System.dll

IMPHASH 8c8a576201f68de1a3f26fc723b9f30f
SHA256 c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917
MD5 792b6f86e296d3904285b2bf67ccd7e0
SHA1 966b16f84697552747e0ddd19a4ba8ab5083af31
SHA512 97edc3410b88ca31abc0af0324258d2b59127047810947d0fb5e7e12957db34d206ffd70a0456add3a26b0546643ff0234124b08423c2c9ffe9bdec6eb210f2c
SSDEEP 192:rFiQJ771Jt17C8F1A5xjGNNvgFOiLb7lrT/L93:X71Jt48F2eNvgFF/L
MD5 SHA1 SHA512 SSDEEP

windows:4 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.
NSIS installer

installer

Minor OS version

Major OS version

Entry point

10673

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/nsProcess.dll

IMPHASH c9fc7f6df8fedf8f8f1f9f820c072664
SHA256 95fe9d92512ff2318cc2520311ef9145b2cee01209ab0e1b6e45c7ce1d4d0e89
MD5 05450face243b3a7472407b999b03a72
SHA1 ffd88af2e338ae606c444390f7eaaf5f4aef2cd9
SHA512 f4cbe30166aff20a226a7150d93a876873ba699d80d7e9f46f32a9b4753fa7966c3113a3124340b39ca67a13205463a413e740e541e742903e3f89af5a53ad3b
MD5 SHA1 SHA512

windows:4 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.
NSIS installer

installer

Minor OS version

Major OS version

Entry point

4255

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_NO_SEH

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_DLL

PDB paths

Voice.ai-Downloader-alphaver-9b69c1da713349ccb07cbe0431d0c911.exe

advapi32

shell32

ole32

comctl32

user32

gdi32

kernel32

generic

$PLUGINSDIR/INetC.dll

kernel32

user32

comctl32

wininet

generic

$PLUGINSDIR/System.dll

kernel32

user32

ole32

generic

$PLUGINSDIR/nsProcess.dll

kernel32

generic