redline | 12fce52d084a8c7efa638c88fa2307bca7c038a49fe566ebb05533cacf17efbd

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	4363463463464363463463463.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	._cache_Synaptics.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	._cache_4363463463464363463463463.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	com%20surrogate.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchostt.lnk	com%20surrogate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchostt.lnk	com%20surrogate.exe

Executes dropped EXE 5 IoCs

pid	Process
4424	._cache_4363463463464363463463463.exe
2892	Synaptics.exe
3608	._cache_Synaptics.exe
612	com%20surrogate.exe
4276	toolwin.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	4363463463464363463463463.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchostt = "C:\\Users\\Admin\\svchostt.exe"	com%20surrogate.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
24	raw.githubusercontent.com
25	raw.githubusercontent.com

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
40	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4363463463464363463463463.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_4363463463464363463463463.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	toolwin.exe

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	4363463463464363463463463.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
1544	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3600	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
2320	powershell.exe
2320	powershell.exe
2320	powershell.exe
4464	powershell.exe
4464	powershell.exe
4464	powershell.exe
3312	powershell.exe
3312	powershell.exe
3312	powershell.exe
4160	powershell.exe
4160	powershell.exe
4160	powershell.exe
612	com%20surrogate.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4424	._cache_4363463463464363463463463.exe
Token: SeDebugPrivilege	3608	._cache_Synaptics.exe
Token: SeDebugPrivilege	612	com%20surrogate.exe
Token: SeDebugPrivilege	2320	powershell.exe
Token: SeDebugPrivilege	4464	powershell.exe
Token: SeDebugPrivilege	3312	powershell.exe
Token: SeDebugPrivilege	4160	powershell.exe
Token: SeDebugPrivilege	612	com%20surrogate.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
3600	EXCEL.EXE
3600	EXCEL.EXE
3600	EXCEL.EXE
3600	EXCEL.EXE
3600	EXCEL.EXE
3600	EXCEL.EXE
3600	EXCEL.EXE
3600	EXCEL.EXE
612	com%20surrogate.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4200 wrote to memory of 4424	4200	4363463463464363463463463.exe	84
PID 4200 wrote to memory of 4424	4200	4363463463464363463463463.exe	84
PID 4200 wrote to memory of 4424	4200	4363463463464363463463463.exe	84
PID 4200 wrote to memory of 2892	4200	4363463463464363463463463.exe	86
PID 4200 wrote to memory of 2892	4200	4363463463464363463463463.exe	86
PID 4200 wrote to memory of 2892	4200	4363463463464363463463463.exe	86
PID 2892 wrote to memory of 3608	2892	Synaptics.exe	87
PID 2892 wrote to memory of 3608	2892	Synaptics.exe	87
PID 2892 wrote to memory of 3608	2892	Synaptics.exe	87
PID 3608 wrote to memory of 612	3608	._cache_Synaptics.exe	90
PID 3608 wrote to memory of 612	3608	._cache_Synaptics.exe	90
PID 4424 wrote to memory of 4276	4424	._cache_4363463463464363463463463.exe	91
PID 4424 wrote to memory of 4276	4424	._cache_4363463463464363463463463.exe	91
PID 4424 wrote to memory of 4276	4424	._cache_4363463463464363463463463.exe	91
PID 612 wrote to memory of 2320	612	com%20surrogate.exe	96
PID 612 wrote to memory of 2320	612	com%20surrogate.exe	96
PID 612 wrote to memory of 4464	612	com%20surrogate.exe	99
PID 612 wrote to memory of 4464	612	com%20surrogate.exe	99
PID 612 wrote to memory of 3312	612	com%20surrogate.exe	101
PID 612 wrote to memory of 3312	612	com%20surrogate.exe	101
PID 612 wrote to memory of 4160	612	com%20surrogate.exe	103
PID 612 wrote to memory of 4160	612	com%20surrogate.exe	103
PID 612 wrote to memory of 1544	612	com%20surrogate.exe	105
PID 612 wrote to memory of 1544	612	com%20surrogate.exe	105

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\4363463463464363463463463.exe
"C:\Users\Admin\AppData\Local\Temp\4363463463464363463463463.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4200
- C:\Users\Admin\AppData\Local\Temp\._cache_4363463463464363463463463.exe
  "C:\Users\Admin\AppData\Local\Temp\._cache_4363463463464363463463463.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Users\Admin\AppData\Local\Temp\Files\toolwin.exe
    "C:\Users\Admin\AppData\Local\Temp\Files\toolwin.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4276
- C:\ProgramData\Synaptics\Synaptics.exe
  "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2892
- - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3608
  - - C:\Users\Admin\AppData\Local\Temp\Files\com%20surrogate.exe
      "C:\Users\Admin\AppData\Local\Temp\Files\com%20surrogate.exe"
      4⤵
      Checks computer location settings
      Drops startup file
      Executes dropped EXE
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:612
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Files\com%20surrogate.exe'
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:2320
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'com%20surrogate.exe'
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:4464
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\svchostt.exe'
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3312
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchostt.exe'
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:4160
    - - C:\Windows\System32\schtasks.exe
        
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchostt" /tr "C:\Users\Admin\svchostt.exe"
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:1544

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

System Information Discovery