ScreenConnect[.]ClientSetup[.]exe

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General

Target
ScreenConnect.ClientSetup.exe
Size 6.8MB
Sample261023-vtpvasfs7j
SHA256 52a3f817f0e63bec323124c36d0d8d4c5361577e0def17a60c8d5cff9c2a3ecf
MD5 6f1c6609dba10a7e25b67bc6f27a1947
SHA1 2c6287f3aabf756d16a077eef92d5c7edd9c6649
SHA512 9a226b0141e50fa4d47d0b6f1c3c222e409bc3a93a842f77173c5436762bfdbf0229947b5e11fba8bf1f075e4fda06bacf1af398ecaa82acda4c967f30097b86
SSDEEP 98304:2zIus6efPXIdoaxcp8wy5c3trGOlkQ5DUOgJ9zl:2hfefPkHxcp9ym3nltDUJV
TLSH
T15E760100B3E1D9B6C57F163CD83A86B56A35BD008356DEBF4385B9691E32B804E337A5
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

revoked_codesign

Malware Config

Signatures

Signed with revoked ConnectWise certificate 1 IoCs

Binary is signed using a ConnectWise certificate revoked for key compromise.

revoked_codesign

resource	yara_rule
sample	revoked_cert_connectwise

Codesign digest Mismatch 1 IoCs

File was altered after it was signed.

resource
ScreenConnect.ClientSetup.exe

Authenticode certificate stuffing 1 IoCs

Suspicious unauthenticated attributes present in the Authenticode signature.

resource
ScreenConnect.ClientSetup.exe

File Explorer

ScreenConnect.ClientSetup.exe

.exe 6.8MB

ScreenConnect.ClientSetup.exe

IMPHASH 9771ee6344923fa220489ab01239bdfd
SHA256 52a3f817f0e63bec323124c36d0d8d4c5361577e0def17a60c8d5cff9c2a3ecf
MD5 6f1c6609dba10a7e25b67bc6f27a1947
SHA1 2c6287f3aabf756d16a077eef92d5c7edd9c6649
SHA512 9a226b0141e50fa4d47d0b6f1c3c222e409bc3a93a842f77173c5436762bfdbf0229947b5e11fba8bf1f075e4fda06bacf1af398ecaa82acda4c967f30097b86
SSDEEP 98304:2zIus6efPXIdoaxcp8wy5c3trGOlkQ5DUOgJ9zl:2hfefPkHxcp9ym3nltDUJV
TLSH
T15E760100B3E1D9B6C57F163CD83A86B56A35BD008356DEBF4385B9691E32B804E337A5
MD5 SHA1 SHA512 SSDEEP TLSH

windows:5 windows x86 arch:x86

Signed with revoked ConnectWise certificate

Binary is signed using a ConnectWise certificate revoked for key compromise.

revoked_codesign
Codesign digest Mismatch

File was altered after it was signed.
Authenticode certificate stuffing

Suspicious unauthenticated attributes present in the Authenticode signature.

PE Signature issue

Digest

ad:c3:af:56:76:cc:03:34:5e:3a:15:c4:f8:78:36:2f:c0:0c:c8:db:04:be:2d:ba:96:38:2f:53:a0:fe:16:fe

Digest Algorithm

sha256

PE Digests Matches

Not matched

Trusted

Not trusted

Signing Certificate

CN=Connectwise\, LLC,O=Connectwise\, LLC,L=Tampa,ST=Florida,C=US

Chains

Apr 8, 2025

CN=Connectwise\, LLC,O=Connectwise\, LLC,L=Tampa,ST=Florida,C=US

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=Connectwise\, LLC,O=Connectwise\, LLC,L=Tampa,ST=Florida,C=US

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

CN=Connectwise\, LLC,O=Connectwise\, LLC,L=Tampa,ST=Florida,C=US

Serial Number

0b:93:60:05:1b:cc:f6:66:42:99:89:98:d5:ba:97:ce

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

Revoked

Revocation Date

Aug 17, 2022

Timespan

Aug 17, 2022 - Aug 15, 2025

Subject

CN=DigiCert Timestamp 2024,O=DigiCert,C=US

Serial Number

0b:ae:66:bc:5a:ba:7f:95:87:c6:f9:e9:04:e3:33:04

Issuer

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

Key Usages

KeyUsageDigitalSignature

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Sep 26, 2024 - Nov 25, 2035

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

Revocation Status

Not revoked

Timespan

Mar 23, 2022 - Mar 22, 2037

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

5293

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE

PDB paths

C:\Users\jmorgan\Source\cwcontrol\Custom\DotNetRunner\Release\DotNetRunner.pdb

mscoree

CorBindToRuntimeEx

kernel32

GetModuleFileNameA DecodePointer SizeofResource LockResource LoadLibraryW LoadResource FindResourceW GetProcAddress WriteConsoleW SetFilePointerEx GetConsoleMode GetConsoleCP FlushFileBuffers HeapReAlloc HeapSize UnhandledExceptionFilter SetUnhandledExceptionFilter GetCurrentProcess TerminateProcess IsProcessorFeaturePresent QueryPerformanceCounter GetCurrentProcessId GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead IsDebuggerPresent GetStartupInfoW GetModuleHandleW RtlUnwind GetLastError SetLastError EncodePointer EnterCriticalSection LeaveCriticalSection DeleteCriticalSection InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree FreeLibrary LoadLibraryExW RaiseException GetStdHandle WriteFile CreateFileW MultiByteToWideChar WideCharToMultiByte ExitProcess GetModuleHandleExW GetACP CloseHandle HeapAlloc HeapFree FindClose FindFirstFileExA FindNextFileA IsValidCodePage GetOEMCP GetCPInfo GetCommandLineA GetCommandLineW GetEnvironmentStringsW FreeEnvironmentStringsW LCMapStringW SetStdHandle GetFileType GetStringTypeW GetProcessHeap

oleaut32

VariantInit SafeArrayUnaccessData SafeArrayCreateVector SafeArrayDestroy VariantClear SafeArrayAccessData

Sharing

General

Malware Config

Signatures

File Explorer

ScreenConnect.ClientSetup.exe

PE Signature issue

mscoree

kernel32

oleaut32

generic