xloader | af5011d40d9869926e4f208372a75fcd5fd2547f5e406e7e5b5e5aab4a5b7cd3

System Information Discovery

Processes:

SecuriteInfo.com.Trojan.Olock.1.12604.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	SecuriteInfo.com.Trojan.Olock.1.12604.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	SecuriteInfo.com.Trojan.Olock.1.12604.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

Processes:

SecuriteInfo.com.Trojan.Olock.1.12604.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	SecuriteInfo.com.Trojan.Olock.1.12604.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

mstsc.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	mstsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\YR08FTBPA = "C:\\Program Files (x86)\\H2d6hzl\\g0h82jerfihjl-x.exe"	mstsc.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

SecuriteInfo.com.Trojan.Olock.1.12604.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	SecuriteInfo.com.Trojan.Olock.1.12604.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	SecuriteInfo.com.Trojan.Olock.1.12604.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

SecuriteInfo.com.Trojan.Olock.1.12604.exeRegSvcs.exemstsc.exe

description	pid	process	target process
PID 3780 set thread context of 748	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	RegSvcs.exe
PID 748 set thread context of 3004	748	RegSvcs.exe	Explorer.EXE
PID 876 set thread context of 3004	876	mstsc.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

mstsc.exe

description ioc process

File opened for modification C:\Program Files (x86)\H2d6hzl\g0h82jerfihjl-x.exe mstsc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

5080 3780 WerFault.exe SecuriteInfo.com.Trojan.Olock.1.12604.exe
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
T1053

Processes:

schtasks.exe

pid process

1548 schtasks.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\H2d6hzl\g0h82jerfihjl-x.exe	mstsc.exe

pid	pid_target	process	target process
5080	3780	WerFault.exe	SecuriteInfo.com.Trojan.Olock.1.12604.exe

pid	process
1548	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

mstsc.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	mstsc.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

Processes:

SecuriteInfo.com.Trojan.Olock.1.12604.exepowershell.exeRegSvcs.exemstsc.exe

pid	process
3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe
764	powershell.exe
3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe
764	powershell.exe
748	RegSvcs.exe
748	RegSvcs.exe
748	RegSvcs.exe
748	RegSvcs.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3004 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

RegSvcs.exemstsc.exe

pid process

748 RegSvcs.exe
748 RegSvcs.exe
748 RegSvcs.exe
876 mstsc.exe
876 mstsc.exe
876 mstsc.exe
876 mstsc.exe

pid	process
3004	Explorer.EXE

pid	process
748	RegSvcs.exe
748	RegSvcs.exe
748	RegSvcs.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe
876	mstsc.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

SecuriteInfo.com.Trojan.Olock.1.12604.exepowershell.exeRegSvcs.exeExplorer.EXEmstsc.exe

description	pid	process
Token: SeDebugPrivilege	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe
Token: SeDebugPrivilege	764	powershell.exe
Token: SeDebugPrivilege	748	RegSvcs.exe
Token: SeShutdownPrivilege	3004	Explorer.EXE
Token: SeCreatePagefilePrivilege	3004	Explorer.EXE
Token: SeShutdownPrivilege	3004	Explorer.EXE
Token: SeCreatePagefilePrivilege	3004	Explorer.EXE
Token: SeShutdownPrivilege	3004	Explorer.EXE
Token: SeCreatePagefilePrivilege	3004	Explorer.EXE
Token: SeDebugPrivilege	876	mstsc.exe
Token: SeShutdownPrivilege	3004	Explorer.EXE
Token: SeCreatePagefilePrivilege	3004	Explorer.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

SecuriteInfo.com.Trojan.Olock.1.12604.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 3780 wrote to memory of 764	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	powershell.exe
PID 3780 wrote to memory of 764	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	powershell.exe
PID 3780 wrote to memory of 764	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	powershell.exe
PID 3780 wrote to memory of 1548	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	schtasks.exe
PID 3780 wrote to memory of 1548	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	schtasks.exe
PID 3780 wrote to memory of 1548	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	schtasks.exe
PID 3780 wrote to memory of 748	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	RegSvcs.exe
PID 3780 wrote to memory of 748	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	RegSvcs.exe
PID 3780 wrote to memory of 748	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	RegSvcs.exe
PID 3780 wrote to memory of 748	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	RegSvcs.exe
PID 3780 wrote to memory of 748	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	RegSvcs.exe
PID 3780 wrote to memory of 748	3780	SecuriteInfo.com.Trojan.Olock.1.12604.exe	RegSvcs.exe
PID 3004 wrote to memory of 876	3004	Explorer.EXE	mstsc.exe
PID 3004 wrote to memory of 876	3004	Explorer.EXE	mstsc.exe
PID 3004 wrote to memory of 876	3004	Explorer.EXE	mstsc.exe
PID 876 wrote to memory of 4228	876	mstsc.exe	cmd.exe
PID 876 wrote to memory of 4228	876	mstsc.exe	cmd.exe
PID 876 wrote to memory of 4228	876	mstsc.exe	cmd.exe
PID 876 wrote to memory of 2584	876	mstsc.exe	cmd.exe
PID 876 wrote to memory of 2584	876	mstsc.exe	cmd.exe
PID 876 wrote to memory of 2584	876	mstsc.exe	cmd.exe
PID 876 wrote to memory of 4592	876	mstsc.exe	cmd.exe
PID 876 wrote to memory of 4592	876	mstsc.exe	cmd.exe
PID 876 wrote to memory of 4592	876	mstsc.exe	cmd.exe
PID 876 wrote to memory of 2856	876	mstsc.exe	Firefox.exe
PID 876 wrote to memory of 2856	876	mstsc.exe	Firefox.exe
PID 876 wrote to memory of 2856	876	mstsc.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3004

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Olock.1.12604.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Olock.1.12604.exe"
2⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3780

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NQprQRmmRihX.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:764

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NQprQRmmRihX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBB61.tmp"
3⤵
- Creates scheduled task(s)
PID:1548

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3780 -s 1928
3⤵
- Program crash
PID:5080

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:876

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:4228

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:2584

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:4592

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:2856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3780 -ip 3780
1⤵
PID:2124

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

2

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

5

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

4

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Data from Local System