snakekeylogger | 6e9331ce6b0ef84031079cf0d10d4f09e389b29c970cbe9f6f1d683eafa9aa52

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\svchost.exe = "0"	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	svchost.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

Hesap_Hareketleri_20230929_194202031.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	Hesap_Hareketleri_20230929_194202031.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	svchost.exe

Looks for VMWare Tools registry key 2 TTPs 2 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

Hesap_Hareketleri_20230929_194202031.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	Hesap_Hareketleri_20230929_194202031.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	svchost.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

Processes:

Hesap_Hareketleri_20230929_194202031.exesvchost.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Hesap_Hareketleri_20230929_194202031.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Hesap_Hareketleri_20230929_194202031.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

Hesap_Hareketleri_20230929_194202031.exesvchost.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Control Panel\International\Geo\Nation	Hesap_Hareketleri_20230929_194202031.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Control Panel\International\Geo\Nation	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

3544 svchost.exe

pid	process
3544	svchost.exe

Windows security modification 2 TTPs 3 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

svchost.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\svchost.exe = "0"	svchost.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

cvtres.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cvtres.exe
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cvtres.exe
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cvtres.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

Hesap_Hareketleri_20230929_194202031.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\""	Hesap_Hareketleri_20230929_194202031.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

Processes:

svchost.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

33 checkip.dyndns.org

flow	ioc
33	checkip.dyndns.org

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

Hesap_Hareketleri_20230929_194202031.exesvchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Hesap_Hareketleri_20230929_194202031.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	Hesap_Hareketleri_20230929_194202031.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	svchost.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

svchost.exe

description pid process target process

PID 3544 set thread context of 116 3544 svchost.exe cvtres.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

1736 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1160 timeout.exe

description	pid	process	target process
PID 3544 set thread context of 116	3544	svchost.exe	cvtres.exe

pid	process
1736	schtasks.exe

pid	process
1160	timeout.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

Hesap_Hareketleri_20230929_194202031.execvtres.exepowershell.exe

pid	process
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
4936	Hesap_Hareketleri_20230929_194202031.exe
116	cvtres.exe
4060	powershell.exe
4060	powershell.exe
116	cvtres.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

Hesap_Hareketleri_20230929_194202031.exesvchost.execvtres.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	4936	Hesap_Hareketleri_20230929_194202031.exe
Token: SeDebugPrivilege	3544	svchost.exe
Token: SeDebugPrivilege	116	cvtres.exe
Token: SeDebugPrivilege	4060	powershell.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

Hesap_Hareketleri_20230929_194202031.execmd.execmd.exesvchost.exe

description	pid	process	target process
PID 4936 wrote to memory of 1524	4936	Hesap_Hareketleri_20230929_194202031.exe	cmd.exe
PID 4936 wrote to memory of 1524	4936	Hesap_Hareketleri_20230929_194202031.exe	cmd.exe
PID 4936 wrote to memory of 1524	4936	Hesap_Hareketleri_20230929_194202031.exe	cmd.exe
PID 4936 wrote to memory of 5108	4936	Hesap_Hareketleri_20230929_194202031.exe	cmd.exe
PID 4936 wrote to memory of 5108	4936	Hesap_Hareketleri_20230929_194202031.exe	cmd.exe
PID 4936 wrote to memory of 5108	4936	Hesap_Hareketleri_20230929_194202031.exe	cmd.exe
PID 5108 wrote to memory of 1160	5108	cmd.exe	timeout.exe
PID 5108 wrote to memory of 1160	5108	cmd.exe	timeout.exe
PID 5108 wrote to memory of 1160	5108	cmd.exe	timeout.exe
PID 1524 wrote to memory of 1736	1524	cmd.exe	schtasks.exe
PID 1524 wrote to memory of 1736	1524	cmd.exe	schtasks.exe
PID 1524 wrote to memory of 1736	1524	cmd.exe	schtasks.exe
PID 5108 wrote to memory of 3544	5108	cmd.exe	svchost.exe
PID 5108 wrote to memory of 3544	5108	cmd.exe	svchost.exe
PID 5108 wrote to memory of 3544	5108	cmd.exe	svchost.exe
PID 3544 wrote to memory of 4060	3544	svchost.exe	powershell.exe
PID 3544 wrote to memory of 4060	3544	svchost.exe	powershell.exe
PID 3544 wrote to memory of 4060	3544	svchost.exe	powershell.exe
PID 3544 wrote to memory of 116	3544	svchost.exe	cvtres.exe
PID 3544 wrote to memory of 116	3544	svchost.exe	cvtres.exe
PID 3544 wrote to memory of 116	3544	svchost.exe	cvtres.exe
PID 3544 wrote to memory of 116	3544	svchost.exe	cvtres.exe
PID 3544 wrote to memory of 116	3544	svchost.exe	cvtres.exe
PID 3544 wrote to memory of 116	3544	svchost.exe	cvtres.exe
PID 3544 wrote to memory of 116	3544	svchost.exe	cvtres.exe
PID 3544 wrote to memory of 116	3544	svchost.exe	cvtres.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

svchost.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe

outlook_office_path 1 IoCs

Processes:

cvtres.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cvtres.exe

outlook_win_path 1 IoCs

Processes:

cvtres.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cvtres.exe

C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri_20230929_194202031.exe
"C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri_20230929_194202031.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4936

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1524

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:1736

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8C61.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:5108

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1160

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- UAC bypass
- Windows security bypass
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Windows security modification
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3544

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\svchost.exe" -Force
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4060

C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
4⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

Virtualization/Sandbox Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion