update[.]exe | Triage™

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General

Target
update.exe
Size 1.9MB
Sample251104-rtb2natpdq
SHA256 6c5087d06021234b772afefdacfad8da2cf0a085bf2392ec2ad60f7544fc41f4
MD5 072cbb5142aa12a4652b5f27b609f071
SHA1 fa3a65302b2c2dc9efc9353f41fc7d5350811a6a
SHA512 e5c9865aaaa6f70c8c3035331d42093081d044a7cc9720cfa49ffa7af207dd1c4a070f59f47134da80751355f1e60112a0fcb0e8a621b7672bd4153dab591ca5
SSDEEP 49152:OpBfaB8QYXxup79SCR6y+239YXF/An9L86Ru1dRWrG:IaqQ9p75wMS1on9
MD5 SHA1 SHA512 SSDEEP

Score

5^/10

Malware Config

Signatures

Codesign digest Mismatch 1 IoCs

File was altered after it was signed.

resource
update.exe

File Explorer

update.exe

.exe 1.9MB

update.exe

IMPHASH 646167cce332c1c252cdcb1839e0cf48
SHA256 6c5087d06021234b772afefdacfad8da2cf0a085bf2392ec2ad60f7544fc41f4
MD5 072cbb5142aa12a4652b5f27b609f071
SHA1 fa3a65302b2c2dc9efc9353f41fc7d5350811a6a
SHA512 e5c9865aaaa6f70c8c3035331d42093081d044a7cc9720cfa49ffa7af207dd1c4a070f59f47134da80751355f1e60112a0fcb0e8a621b7672bd4153dab591ca5
SSDEEP 49152:OpBfaB8QYXxup79SCR6y+239YXF/An9L86Ru1dRWrG:IaqQ9p75wMS1on9
MD5 SHA1 SHA512 SSDEEP

windows:10 windows x86 arch:x86

Codesign digest Mismatch

File was altered after it was signed.

PE Signature issue

Digest

98:14:ae:17:a5:71:12:e4:02:97:1c:77:8e:f7:ea:e8:90:37:c7:cc:67:d0:31:d2:ca:02:e3:e0:c0:c3:86:6b

Digest Algorithm

sha256

PE Digests Matches

Not matched

Trusted

Signing Certificate

CN=TeamViewer Germany GmbH,O=TeamViewer Germany GmbH,L=Göppingen,ST=Baden-Württemberg,C=DE

Chains

Oct 7, 2025

CN=TeamViewer Germany GmbH,O=TeamViewer Germany GmbH,L=Göppingen,ST=Baden-Württemberg,C=DE

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=TeamViewer Germany GmbH,O=TeamViewer Germany GmbH,L=Göppingen,ST=Baden-Württemberg,C=DE

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 High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

CN=TeamViewer Germany GmbH,O=TeamViewer Germany GmbH,L=Göppingen,ST=Baden-Württemberg,C=DE

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

0f:d1:bb:ca:79:6b:d7:f8:dd:4c:82:e1:0a:9a:96:31

Issuer

CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageCodeSigning

Timespan

Jan 13, 2022 - Nov 9, 2031

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=TeamViewer Germany GmbH,O=TeamViewer Germany GmbH,L=Göppingen,ST=Baden-Württemberg,C=DE

Serial Number

06:2e:e3:fd:7c:dc:52:09:7c:1d:a6:af:a8:7c:74:5e

Issuer

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

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageCodeSigning

Timespan

May 4, 2023 - May 6, 2026

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

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

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

Timespan

Aug 1, 2022 - Nov 9, 2031

Minor OS version

Major OS version

Entry point

27984

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

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_32BIT_MACHINE

PDB paths

wextract.pdb

advapi32

GetTokenInformation RegDeleteValueA RegOpenKeyExA RegQueryInfoKeyA FreeSid OpenProcessToken RegSetValueExA RegCreateKeyExA LookupPrivilegeValueA AllocateAndInitializeSid RegQueryValueExA EqualSid RegCloseKey AdjustTokenPrivileges

kernel32

_lopen _llseek CompareStringA GetLastError GetFileAttributesA GetSystemDirectoryA LoadLibraryA DeleteFileA GlobalAlloc GlobalFree CloseHandle WritePrivateProfileStringA IsDBCSLeadByte GetWindowsDirectoryA SetFileAttributesA GetProcAddress GlobalLock LocalFree RemoveDirectoryA FreeLibrary _lclose CreateDirectoryA GetPrivateProfileIntA GetPrivateProfileStringA GlobalUnlock ReadFile SizeofResource WriteFile GetDriveTypeA lstrcmpA SetFileTime SetFilePointer FindResourceA CreateMutexA GetVolumeInformationA ExpandEnvironmentStringsA GetCurrentDirectoryA FreeResource GetVersion SetCurrentDirectoryA GetTempPathA LocalFileTimeToFileTime CreateFileA SetEvent TerminateThread GetVersionExA LockResource GetSystemInfo CreateThread ResetEvent LoadResource ExitProcess GetModuleHandleW CreateProcessA FormatMessageA GetTempFileNameA DosDateTimeToFileTime CreateEventA GetExitCodeProcess FindNextFileA LocalAlloc GetShortPathNameA MulDiv GetDiskFreeSpaceA EnumResourceLanguagesA GetTickCount GetSystemTimeAsFileTime GetCurrentThreadId GetCurrentProcessId QueryPerformanceCounter TerminateProcess SetUnhandledExceptionFilter UnhandledExceptionFilter GetStartupInfoW Sleep FindClose GetCurrentProcess FindFirstFileA WaitForSingleObject GetModuleFileNameA LoadLibraryExA

gdi32

GetDeviceCaps

user32

SetWindowLongA GetDlgItemTextA DialogBoxIndirectParamA ShowWindow MsgWaitForMultipleObjects SetWindowPos GetDC GetWindowRect DispatchMessageA GetDesktopWindow CharUpperA SetDlgItemTextA ExitWindowsEx MessageBeep EndDialog CharPrevA LoadStringA CharNextA EnableWindow ReleaseDC SetForegroundWindow PeekMessageA GetDlgItem SendMessageA SendDlgItemMessageA MessageBoxA SetWindowTextA GetWindowLongA CallWindowProcA GetSystemMetrics

msvcrt

_controlfp ?terminate@@YAXXZ _acmdln _initterm __setusermatherr _except_handler4_common memcpy _ismbblead __p__fmode _cexit _exit exit __set_app_type __getmainargs _amsg_exit __p__commode _XcptFilter memcpy_s _vsnprintf memset

comctl32

ord17

cabinet

ord22 ord23 ord21 ord20

version

GetFileVersionInfoA VerQueryValueA GetFileVersionInfoSizeA

Sharing

General

Malware Config

Signatures

File Explorer

update.exe

PE Signature issue

advapi32

kernel32

gdi32

user32

msvcrt

comctl32

cabinet

version

generic