Analysis
- max time kernel
149s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
11/11/2024, 12:22
Behavioral task
behavioral1
Sample
f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe
Resource
win10v2004-20241007-en
General
- Target f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe
- Size 90KB
- Sample241111-pj7pgazbph
- SHA256 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334
- MD5 13dce828817daf262a3435de96e30277
- SHA1 4abaf7eeb5fa68deb4662d31b887cf8b6c1e6950
- SHA512 5e16471086340adcc349887b9d5aaf78f41e423a136238cc65f9d50467e9a16c08c7ddb2d20130e69575d4519f7c4e4d86d427ae32e0d2711506ca614e1d9587
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VTyvRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutNyvOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Modifies WinLogon for persistence 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Windows\\system32\\IExplorer.exe\"" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\IExplorer.exe" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe - Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe - Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe - Disables RegEdit via registry modification 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe - Disables use of System Restore points 1 TTPs
- Executes dropped EXE 14 IoCs
pid Process 2512 xk.exe 4300 IExplorer.exe 3220 WINLOGON.EXE 3596 CSRSS.EXE 5064 SERVICES.EXE 4896 xk.exe 3492 IExplorer.exe 3464 WINLOGON.EXE 3572 CSRSS.EXE 3528 SERVICES.EXE 3992 LSASS.EXE 820 SMSS.EXE 4508 LSASS.EXE 3484 SMSS.EXE - Modifies system executable filetype association 2 TTPs 13 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\ = "File Folder" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe - Adds Run key to start application 2 TTPs 5 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xk = "C:\\Windows\\xk.exe" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSMSGS = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\WINLOGON.EXE" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ServiceAdmin = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\SERVICES.EXE" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\LogonAdmin = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\CSRSS.EXE" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\System Monitoring = "C:\\Users\\Admin\\Local Settings\\Application Data\\WINDOWS\\LSASS.EXE" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe - Drops desktop.ini file(s) 4 IoCs
description ioc Process File opened for modification C:\desktop.ini f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File created C:\desktop.ini f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened for modification F:\desktop.ini f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File created F:\desktop.ini f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe - Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\E: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\J: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\T: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\X: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\Y: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\B: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\H: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\L: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\P: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\R: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\U: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\W: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\G: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\K: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\O: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\Q: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\S: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\V: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\Z: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\I: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\M: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened (read-only) \??\N: f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe - Drops file in System32 directory 6 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\shell.exe f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File created C:\Windows\SysWOW64\shell.exe f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File created C:\Windows\SysWOW64\Mig2.scr f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File created C:\Windows\SysWOW64\IExplorer.exe f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened for modification C:\Windows\SysWOW64\IExplorer.exe f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File opened for modification C:\Windows\SysWOW64\Mig2.scr f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe -
resource yara_rule behavioral2/memory/3924-0-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/files/0x000a000000023b64-8.dat upx behavioral2/files/0x000a000000023b68-106.dat upx behavioral2/memory/2512-113-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/files/0x000a000000023b6c-112.dat upx behavioral2/memory/4300-118-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/files/0x000a000000023b6e-120.dat upx behavioral2/memory/3220-125-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/files/0x000a000000023b6f-126.dat upx behavioral2/files/0x000a000000023b70-133.dat upx behavioral2/memory/3596-131-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/memory/5064-138-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/files/0x000a000000023b68-187.dat upx behavioral2/memory/4896-188-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/files/0x000a000000023b6c-192.dat upx behavioral2/memory/4896-194-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/memory/3492-198-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/files/0x000a000000023b6e-200.dat upx behavioral2/memory/3464-204-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/files/0x000a000000023b6f-206.dat upx behavioral2/memory/3572-208-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/memory/3924-207-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/memory/3572-212-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/files/0x000a000000023b70-214.dat upx behavioral2/memory/3528-218-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/files/0x000a000000023b71-220.dat upx behavioral2/memory/3992-225-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/files/0x000a000000023b72-227.dat upx behavioral2/memory/820-232-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/memory/3924-258-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/memory/4508-265-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/memory/3484-269-0x0000000000400000-0x000000000042F000-memory.dmp upx behavioral2/memory/3924-270-0x0000000000400000-0x000000000042F000-memory.dmp upx - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\xk.exe f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe File created C:\Windows\xk.exe f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe - System Location Discovery: System Language Discovery 1 TTPs 15 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language xk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IExplorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language SERVICES.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IExplorer.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WINLOGON.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LSASS.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WINLOGON.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language CSRSS.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language SERVICES.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LSASS.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language SMSS.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language xk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language CSRSS.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language SMSS.EXE - Modifies Control Panel 4 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\Desktop\ f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\Desktop\SCRNSAVE.EXE = "C:\\Windows\\system32\\Mig~mig.SCR" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\Desktop\ScreenSaverIsSecure = "0" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\Desktop\ScreenSaveTimeOut = "600" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe - Modifies registry class 15 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\ = "File Folder" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\exefile f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"C:\\Windows\\system32\\shell.exe\" \"%1\" %*" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lnkfile\shell\open\command f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe - Suspicious use of SetWindowsHookEx 15 IoCs
pid Process 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 2512 xk.exe 4300 IExplorer.exe 3220 WINLOGON.EXE 3596 CSRSS.EXE 5064 SERVICES.EXE 4896 xk.exe 3492 IExplorer.exe 3464 WINLOGON.EXE 3572 CSRSS.EXE 3528 SERVICES.EXE 3992 LSASS.EXE 820 SMSS.EXE 4508 LSASS.EXE 3484 SMSS.EXE - Suspicious use of WriteProcessMemory 42 IoCs
description pid Process procid_target PID 3924 wrote to memory of 2512 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 85 PID 3924 wrote to memory of 2512 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 85 PID 3924 wrote to memory of 2512 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 85 PID 3924 wrote to memory of 4300 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 86 PID 3924 wrote to memory of 4300 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 86 PID 3924 wrote to memory of 4300 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 86 PID 3924 wrote to memory of 3220 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 87 PID 3924 wrote to memory of 3220 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 87 PID 3924 wrote to memory of 3220 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 87 PID 3924 wrote to memory of 3596 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 88 PID 3924 wrote to memory of 3596 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 88 PID 3924 wrote to memory of 3596 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 88 PID 3924 wrote to memory of 5064 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 89 PID 3924 wrote to memory of 5064 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 89 PID 3924 wrote to memory of 5064 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 89 PID 3924 wrote to memory of 4896 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 91 PID 3924 wrote to memory of 4896 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 91 PID 3924 wrote to memory of 4896 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 91 PID 3924 wrote to memory of 3492 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 92 PID 3924 wrote to memory of 3492 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 92 PID 3924 wrote to memory of 3492 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 92 PID 3924 wrote to memory of 3464 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 93 PID 3924 wrote to memory of 3464 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 93 PID 3924 wrote to memory of 3464 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 93 PID 3924 wrote to memory of 3572 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 94 PID 3924 wrote to memory of 3572 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 94 PID 3924 wrote to memory of 3572 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 94 PID 3924 wrote to memory of 3528 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 95 PID 3924 wrote to memory of 3528 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 95 PID 3924 wrote to memory of 3528 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 95 PID 3924 wrote to memory of 3992 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 96 PID 3924 wrote to memory of 3992 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 96 PID 3924 wrote to memory of 3992 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 96 PID 3924 wrote to memory of 820 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 97 PID 3924 wrote to memory of 820 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 97 PID 3924 wrote to memory of 820 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 97 PID 3924 wrote to memory of 4508 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 110 PID 3924 wrote to memory of 4508 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 110 PID 3924 wrote to memory of 4508 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 110 PID 3924 wrote to memory of 3484 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 111 PID 3924 wrote to memory of 3484 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 111 PID 3924 wrote to memory of 3484 3924 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe 111 - System policy modification 1 TTPs 4 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions = "1" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe"C:\Users\Admin\AppData\Local\Temp\f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334.exe"1⤵
- Modifies WinLogon for persistence
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Disables RegEdit via registry modification
- Modifies system executable filetype association
- Adds Run key to start application
- Drops desktop.ini file(s)
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3924 -
C:\Windows\xk.exeC:\Windows\xk.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2512
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C:\Windows\SysWOW64\IExplorer.exeC:\Windows\system32\IExplorer.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:4300
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C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE"C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3220
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C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE"C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3596
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C:\Users\Admin\Local Settings\Application Data\WINDOWS\SERVICES.EXE"C:\Users\Admin\Local Settings\Application Data\WINDOWS\SERVICES.EXE"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:5064
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C:\Windows\xk.exeC:\Windows\xk.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:4896
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C:\Windows\SysWOW64\IExplorer.exeC:\Windows\system32\IExplorer.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3492
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C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE"C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3464
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C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE"C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3572
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C:\Users\Admin\Local Settings\Application Data\WINDOWS\SERVICES.EXE"C:\Users\Admin\Local Settings\Application Data\WINDOWS\SERVICES.EXE"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3528
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C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE"C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3992
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C:\Users\Admin\Local Settings\Application Data\WINDOWS\SMSS.EXE"C:\Users\Admin\Local Settings\Application Data\WINDOWS\SMSS.EXE"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:820
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C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE"C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:4508
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C:\Users\Admin\Local Settings\Application Data\WINDOWS\SMSS.EXE"C:\Users\Admin\Local Settings\Application Data\WINDOWS\SMSS.EXE"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3484
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1Change Default File Association
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Modify Registry
6Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\WINDOWS\CSRSS.EXE
- Size 90KB
- SHA256 96fc552e9c006b5ac91093882af2a101ddab85083d1c6c4e6252e64db58d3341
- MD5 d228725095171a426a11e45014b876a8
- SHA1 cfabd52d9d4bf414c52d64555192e764e0391fee
- SHA512 0f6f30bb8677227b7784dd8b9697a37d33b7c92318f6bb8b44e7f27cfd52c8a71d98614a78362d271f12cc5887addc84e4eb1937c7c660414e88162cf554a1eb
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VT4AvRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutN9vOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\WINDOWS\CSRSS.EXE
- Size 90KB
- SHA256 e732babe72a6077b43cea4cd42beb59171dfcb07d3af8d833828acd62dce0ee7
- MD5 e0638b072e169a2d252e162ab3269681
- SHA1 d19b41f2009b5a1b497e13ee2eae269cdd6f9a00
- SHA512 3c1ecbc74409326d00cce2f5d901a7000f05c772c9a0f9378af467bfc29486b4dcef38f4bc78d873a08d2a2da3cf58a7809702e197f6c1951d6529a0d9342c48
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VT7OvRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutN6vOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\WINDOWS\LSASS.EXE
- Size 90KB
- SHA256 d74e73eb7511ec8f82ddafb3715302c5b06e22b5602fa64cc948b719e0172f8e
- MD5 04d586e428cf9a91f491198159bc03e1
- SHA1 3176475196dfa840600e179261b926c514ec7267
- SHA512 a713cd432871095db644b3b4d7a4a0178d51c7602cb44775bce5b404d94231d67c9c07d1642900d2812657ccb703e93901494d65198855ad75d04c49ff9f85ec
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VTOvRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutNOvOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\WINDOWS\SERVICES.EXE
- Size 90KB
- SHA256 88574d628f5455e6bd9cdb658b6acf682132eaffce992c7ba06994db62de09d7
- MD5 479f3c9f7c42a365cb35981742cebfb3
- SHA1 64f4338fdb40239d5dae8486336c6bd5f1a2326d
- SHA512 d17cbc8c6f66c2285214a0324a7ff2edfc729e737bdb47b6e83795c2b7067fdf66537e10b2c5fff09b9f64b043519ccc041caa9389551bb6817c1714f3a48dee
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VTWvRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutNWvOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\WINDOWS\SERVICES.EXE
- Size 90KB
- SHA256 0a5f6a05ebf46f9dedf9e03431caeda4ac512a100686840ffa27f4745856df1e
- MD5 7998a0c7500008ef65579cc16599bb50
- SHA1 cfc6b7983383bf96f1953a92d25ca559b2dee13e
- SHA512 fdbad6e58751cd7b84b66087dd4e8cbfcb1a6e5c86a8f67ae0ced2929151251fca5f4a5527f02e669b4e5fc674c24e383898d84f37a575d53ee2b67df802a92c
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VTDvRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutNDvOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\WINDOWS\SMSS.EXE
- Size 90KB
- SHA256 02ea7d3da19f263f781937b4a0b74766ac8c684561f96ce31f30577739a9e10e
- MD5 31998847f109e32598ff103df87c75b1
- SHA1 a80650d99e86f6f767866756957e027ccc7ac3ec
- SHA512 b4a4371691be4dfbd819b7c0ce2b07a641205b61fbfdc8b01849ed77ec6536873f6a69008a9684f116cedad056e87df0ac1d7017fb773715f5b894990c7556f1
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VTjvRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutNjvOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\WINDOWS\WINLOGON.EXE
- Size 90KB
- SHA256 f313f284c520aa7f0c2757c9b104380a75150ecf97bdf8df99aaa4e8cda5b5c9
- MD5 47b57e7271683f99e6e9d6fe6c90c6b0
- SHA1 635f4161c04f7ba1edbdc8b9dbe96f8b2d7e3ecf
- SHA512 52809f9ded25c06b3c2fa4503ed847410031f478b250d4d8faa6108a6fdbd53d9a3353cb41b8aa8b5788dc77c0ce509b1fbfc7a74483da2ac96c4ddb0cf3d3b6
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VTDvRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutNDvOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\winlogon.exe
- Size 90KB
- SHA256 f7f30ef25c64595bc462068781ee2e8592930f2351b6dcee38de66bd4451b334
- MD5 13dce828817daf262a3435de96e30277
- SHA1 4abaf7eeb5fa68deb4662d31b887cf8b6c1e6950
- SHA512 5e16471086340adcc349887b9d5aaf78f41e423a136238cc65f9d50467e9a16c08c7ddb2d20130e69575d4519f7c4e4d86d427ae32e0d2711506ca614e1d9587
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VTyvRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutNyvOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE
- Size 90KB
- SHA256 a072ef8ec1056062fd534d83000afa9109347a6c523af913d6e7a0fd4a021e5c
- MD5 5d30438f46a3085bd05412bbd38da264
- SHA1 790ab8a9f20a2959d827c1df444066ca062112ef
- SHA512 ff472e65c3da9338185ee53be7fb07e2bae98b25510a0093bd8212f544d9733ac26169c98a0c508780d54c2e176dbe455448a8ac0282cf4e7e140feaa934a87a
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VTsRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutNsOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\IExplorer.exe
- Size 90KB
- SHA256 32ed1470dcd0b6deab2857112e958039928030fbab6913cce61b086cd5b04b08
- MD5 34b81b77ad9921bd349df928215b7e8e
- SHA1 79ecbbe97ffc4a2aa2bf5c9979b3c267610b910f
- SHA512 8f9574419de835625a62da1f2ba51c2095c2aef480a911adb4b066ca303cfc0b54adab2e10c51018df02be5a44d87c39e2545c31c930d21884fa6d9052e2833d
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VTBvRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutNBvOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\IExplorer.exe
- Size 90KB
- SHA256 d93dde2fc5eaa39c8ff128b37dfa3200417fe8c1c308d1c070e3a3b2bef870e8
- MD5 1bb9d2741a35b804063e5f3a2dddcfbb
- SHA1 552d606ee44b5f2bfe47e6528732d5ce3814e26d
- SHA512 92fe6870664f5b961a33b4805b67d699543024fdeaefca20486144d76008e289535ab35cadc2bfb871139524c475b14a209bcb6a583bf9c3dedd0a8f6dfdfd96
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VTmvRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutNmvOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\xk.exe
- Size 90KB
- SHA256 4be293f79d6ecc9f717dc57b02221f6ec1bcf33d88ba2957d8db8e3b85e773e9
- MD5 cebd07f77b1a16814a64d11b531e03e7
- SHA1 5eb69a45ae63261f289900ef820b4babf211be52
- SHA512 957a82c8c7cba532d0099fd4b73af137e5dcf3ec8988aa870e3061fb0125cc0e70579a2283f1bae68ac5ebcf6eb6c8378efd83c75ddf68967b82d9f742430e1d
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VTVvRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutNVvOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\xk.exe
- Size 90KB
- SHA256 51b73e5fd2b78a4bf992e5145e0166aa2211e11b83dc8e8200a14e4a18bdc503
- MD5 a34a8faac2771d5ab3519703980886c4
- SHA1 35064abb0a26d945a7111f2609f46d332ef8adb4
- SHA512 b3f18c7b7a9da4d81e175a6de235501fe8edadada729db1b33d28969f4fa5baaff26a821b42b0bf83e15adbd77ee68661ab76e0d2864468b8e15cd11c68b349f
- SSDEEP 1536:ERsjdf1aM67v32Z9x5nouy8VT/vRsjdf1aM67v32Z9x5nouy8VTM:EOaHv3YpoutN/vOaHv3YpoutNM
- MD5 SHA1 SHA512 SSDEEP