ScreenConnect[.]ClientSetup[.]exe

General

Target
ScreenConnect.ClientSetup.exe
Size 5.4MB
Sample251012-1emdhszpx2
SHA256 1b75c42801e9a5bd3facc5e084897f76e42010be75e77bd0f2db6a1d52790834
MD5 675e48419ae5fc9214ec26ee94e379e0
SHA1 2df749d62b28818292e9da488aa559fa7ef8e701
SHA512 85cc53d6964e22ada22dbe8497324a764b27f6d220a8af041e42b28b50d307165040b8afcf9e73118544b2ce6a0c36725717ba225db2ba67abb120c5a744eb45
SSDEEP 98304:yzIus6efPUIdoaxcp8wy5c3trGOlkQ5DUOgJ9zl:yhfefPtHxcp9ym3nltDUJV
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

revoked_codesign

Malware Config

Signatures

Binary is signed using a ConnectWise certificate revoked for key compromise. 1 IoCs

revoked_codesign

resource	yara_rule
sample	revoked_cert_connectwise

File Explorer

ScreenConnect.ClientSetup.exe

.exe 5.4MB

ScreenConnect.ClientSetup.exe

IMPHASH 9771ee6344923fa220489ab01239bdfd
SHA256 1b75c42801e9a5bd3facc5e084897f76e42010be75e77bd0f2db6a1d52790834
MD5 675e48419ae5fc9214ec26ee94e379e0
SHA1 2df749d62b28818292e9da488aa559fa7ef8e701
SHA512 85cc53d6964e22ada22dbe8497324a764b27f6d220a8af041e42b28b50d307165040b8afcf9e73118544b2ce6a0c36725717ba225db2ba67abb120c5a744eb45
SSDEEP 98304:yzIus6efPUIdoaxcp8wy5c3trGOlkQ5DUOgJ9zl:yhfefPtHxcp9ym3nltDUJV
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x86 arch:x86

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

revoked_codesign

Digest

1b:f1:1c:70:90:06:1c:55:6d:c5:32:e7:ab:6d:09:02:24:96:63:77:13:b1:fb:3f:57:44:46:67:04:b3:e7:39

Digest Algorithm

sha256

PE Digests Matches

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

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

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

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

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

Timespan

Aug 1, 2022 - Nov 9, 2031

Minor OS version

1

Major OS version

5

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

mscoree

kernel32

oleaut32

generic