Analysis
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max time kernel
150s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20241023-en -
resource tags
arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system -
submitted
09-12-2024 04:27
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe
Resource
win7-20241023-en
windows7-x64
16 signatures
150 seconds
General
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Target
f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe
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Size
154KB
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MD5
d1a86d6617c02d6f108e23a07a8be6a0
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SHA1
196fe6f3acaf1973f0e3aee0e3836a8cb030f825
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SHA256
f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588
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SHA512
629dc73cce5f9b0532d817aa3e519a70812f8566f01ed4256d59ab9cc6c6339b6809ddc0e7ecd7a65ba6662577e6394d18dd151126596884e9e9ab9ca201863c
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SSDEEP
3072:vgh2I2r6EHIABO7Q+Wzk8jwaaHw7Koj4r0Q+nh1fz8xcOtfHDHDPf:6EH7yihLfzmj5bDn
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,C:\\Users\\Admin\\AppData\\Local\\elntywnj\\mrcgmwwa.exe" svchost.exe -
Ramnit family
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion svchost.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mrcgmwwa.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mrcgmwwa.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2356 ewaeoyygittboqdl.exe -
Impair Defenses: Safe Mode Boot 1 TTPs 3 IoCs
description ioc Process Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\ProfSvc svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Power svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\WinDefend svchost.exe -
Loads dropped DLL 4 IoCs
pid Process 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\MrcGmwwa = "C:\\Users\\Admin\\AppData\\Local\\elntywnj\\mrcgmwwa.exe" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 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 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ewaeoyygittboqdl.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe 2252 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 476 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe Token: SeDebugPrivilege 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe Token: SeSecurityPrivilege 1536 svchost.exe Token: SeSecurityPrivilege 2252 svchost.exe Token: SeDebugPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeSecurityPrivilege 2356 ewaeoyygittboqdl.exe Token: SeLoadDriverPrivilege 2356 ewaeoyygittboqdl.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe Token: SeBackupPrivilege 2252 svchost.exe Token: SeRestorePrivilege 2252 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2412 wrote to memory of 1536 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 30 PID 2412 wrote to memory of 1536 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 30 PID 2412 wrote to memory of 1536 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 30 PID 2412 wrote to memory of 1536 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 30 PID 2412 wrote to memory of 1536 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 30 PID 2412 wrote to memory of 1536 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 30 PID 2412 wrote to memory of 1536 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 30 PID 2412 wrote to memory of 1536 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 30 PID 2412 wrote to memory of 1536 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 30 PID 2412 wrote to memory of 1536 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 30 PID 2412 wrote to memory of 2252 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 31 PID 2412 wrote to memory of 2252 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 31 PID 2412 wrote to memory of 2252 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 31 PID 2412 wrote to memory of 2252 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 31 PID 2412 wrote to memory of 2252 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 31 PID 2412 wrote to memory of 2252 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 31 PID 2412 wrote to memory of 2252 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 31 PID 2412 wrote to memory of 2252 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 31 PID 2412 wrote to memory of 2252 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 31 PID 2412 wrote to memory of 2252 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 31 PID 2412 wrote to memory of 2356 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 32 PID 2412 wrote to memory of 2356 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 32 PID 2412 wrote to memory of 2356 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 32 PID 2412 wrote to memory of 2356 2412 f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe"C:\Users\Admin\AppData\Local\Temp\f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2412 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1536
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- Modifies WinLogon for persistence
- UAC bypass
- Checks BIOS information in registry
- Drops startup file
- Impair Defenses: Safe Mode Boot
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2252
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C:\Users\Admin\AppData\Local\Temp\ewaeoyygittboqdl.exe"C:\Users\Admin\AppData\Local\Temp\ewaeoyygittboqdl.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2356
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
2Disable or Modify Tools
1Safe Mode Boot
1Modify Registry
3Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
154KB
MD5d1a86d6617c02d6f108e23a07a8be6a0
SHA1196fe6f3acaf1973f0e3aee0e3836a8cb030f825
SHA256f145ba40ea8af1d7ccf0e4fb23065bc30c1497bb446b856aace283ab601aa588
SHA512629dc73cce5f9b0532d817aa3e519a70812f8566f01ed4256d59ab9cc6c6339b6809ddc0e7ecd7a65ba6662577e6394d18dd151126596884e9e9ab9ca201863c