xworm | 241db2a17ac329619da483ffaab8b2991eaeeae88c2c28f86a0d7aacb3bd16a9

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	XClient.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	Electron V3.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	Result.exe

Drops startup file 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	XClient.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe	test.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe	test.exe

Executes dropped EXE 12 IoCs

pid	Process
4748	Electron V3.exe
1920	Result.exe
3704	Intel (R).exe
1640	XClient.exe
3352	test.exe
2800	test.exe
2524	test.exe
4944	test.exe
4972	test.exe
4660	test.exe
4488	svchost.exe
5008	svchost.exe

Loads dropped DLL 64 IoCs

pid	Process
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
3352	test.exe
2800	test.exe
2524	test.exe
2524	test.exe
2800	test.exe
2800	test.exe
2800	test.exe
2800	test.exe
2524	test.exe
2524	test.exe
2800	test.exe
2524	test.exe
2524	test.exe
2800	test.exe
2524	test.exe
2800	test.exe
2524	test.exe
2800	test.exe
2800	test.exe
2524	test.exe
2524	test.exe
2800	test.exe
2800	test.exe
2524	test.exe
2800	test.exe
2524	test.exe
2524	test.exe
2800	test.exe
2800	test.exe
2524	test.exe
2524	test.exe
2800	test.exe
2800	test.exe
2524	test.exe
2524	test.exe
2800	test.exe
2524	test.exe
2800	test.exe
2524	test.exe
4972	test.exe
4972	test.exe
4944	test.exe
4944	test.exe
4972	test.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
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	XClient.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Looks up external IP address via web service 3 IoCs

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

flow	ioc
7	ip-api.com
21	ipinfo.io
22	ipinfo.io

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	test.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	test.exe

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	test.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	test.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	test.exe

Checks processor information in registry 2 TTPs 2 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	test.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	test.exe

Kills process with taskkill 7 IoCs

evasion

pid	Process
1580	taskkill.exe
2384	taskkill.exe
4368	taskkill.exe
3776	taskkill.exe
656	taskkill.exe
1572	taskkill.exe
3508	taskkill.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
4888	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3352	test.exe
3352	test.exe
4972	test.exe
4972	test.exe
3108	powershell.exe
3108	powershell.exe
1640	XClient.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	1640	XClient.exe
Token: SeDebugPrivilege	1580	taskkill.exe
Token: SeDebugPrivilege	2384	taskkill.exe
Token: SeDebugPrivilege	4368	taskkill.exe
Token: SeDebugPrivilege	3776	taskkill.exe
Token: SeDebugPrivilege	656	taskkill.exe
Token: SeDebugPrivilege	1572	taskkill.exe
Token: SeDebugPrivilege	3508	taskkill.exe
Token: SeDebugPrivilege	3108	powershell.exe
Token: SeDebugPrivilege	1640	XClient.exe
Token: SeDebugPrivilege	4488	svchost.exe
Token: SeDebugPrivilege	5008	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1640	XClient.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 3380 wrote to memory of 4748	3380	Electron V3.exe	82
PID 3380 wrote to memory of 4748	3380	Electron V3.exe	82
PID 3380 wrote to memory of 4748	3380	Electron V3.exe	82
PID 3380 wrote to memory of 1920	3380	Electron V3.exe	83
PID 3380 wrote to memory of 1920	3380	Electron V3.exe	83
PID 3380 wrote to memory of 1920	3380	Electron V3.exe	83
PID 1920 wrote to memory of 3704	1920	Result.exe	84
PID 1920 wrote to memory of 3704	1920	Result.exe	84
PID 1920 wrote to memory of 1640	1920	Result.exe	85
PID 1920 wrote to memory of 1640	1920	Result.exe	85
PID 3704 wrote to memory of 3352	3704	Intel (R).exe	86
PID 3704 wrote to memory of 3352	3704	Intel (R).exe	86
PID 3352 wrote to memory of 4660	3352	test.exe	87
PID 3352 wrote to memory of 4660	3352	test.exe	87
PID 3352 wrote to memory of 2800	3352	test.exe	88
PID 3352 wrote to memory of 2800	3352	test.exe	88
PID 3352 wrote to memory of 2524	3352	test.exe	89
PID 3352 wrote to memory of 2524	3352	test.exe	89
PID 3352 wrote to memory of 4944	3352	test.exe	90
PID 3352 wrote to memory of 4944	3352	test.exe	90
PID 3352 wrote to memory of 4972	3352	test.exe	91
PID 3352 wrote to memory of 4972	3352	test.exe	91
PID 2524 wrote to memory of 2468	2524	test.exe	92
PID 2524 wrote to memory of 2468	2524	test.exe	92
PID 2800 wrote to memory of 1896	2800	test.exe	93
PID 2800 wrote to memory of 1896	2800	test.exe	93
PID 4972 wrote to memory of 3652	4972	test.exe	94
PID 4972 wrote to memory of 3652	4972	test.exe	94
PID 4944 wrote to memory of 3716	4944	test.exe	98
PID 4944 wrote to memory of 3716	4944	test.exe	98
PID 4660 wrote to memory of 460	4660	test.exe	100
PID 4660 wrote to memory of 460	4660	test.exe	100
PID 2468 wrote to memory of 1580	2468	cmd.exe	102
PID 2468 wrote to memory of 1580	2468	cmd.exe	102
PID 1896 wrote to memory of 2384	1896	cmd.exe	103
PID 1896 wrote to memory of 2384	1896	cmd.exe	103
PID 3716 wrote to memory of 4368	3716	cmd.exe	127
PID 3716 wrote to memory of 4368	3716	cmd.exe	127
PID 3652 wrote to memory of 3776	3652	cmd.exe	106
PID 3652 wrote to memory of 3776	3652	cmd.exe	106
PID 460 wrote to memory of 656	460	cmd.exe	107
PID 460 wrote to memory of 656	460	cmd.exe	107
PID 2800 wrote to memory of 800	2800	test.exe	108
PID 2800 wrote to memory of 800	2800	test.exe	108
PID 2524 wrote to memory of 1908	2524	test.exe	109
PID 2524 wrote to memory of 1908	2524	test.exe	109
PID 800 wrote to memory of 3508	800	cmd.exe	112
PID 800 wrote to memory of 3508	800	cmd.exe	112
PID 1908 wrote to memory of 1572	1908	cmd.exe	113
PID 1908 wrote to memory of 1572	1908	cmd.exe	113
PID 4944 wrote to memory of 4016	4944	test.exe	114
PID 4944 wrote to memory of 4016	4944	test.exe	114
PID 4944 wrote to memory of 3172	4944	test.exe	116
PID 4944 wrote to memory of 3172	4944	test.exe	116
PID 3352 wrote to memory of 1924	3352	test.exe	120
PID 3352 wrote to memory of 1924	3352	test.exe	120
PID 1924 wrote to memory of 3108	1924	cmd.exe	122
PID 1924 wrote to memory of 3108	1924	cmd.exe	122
PID 1640 wrote to memory of 4888	1640	XClient.exe	123
PID 1640 wrote to memory of 4888	1640	XClient.exe	123

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\Electron V3.1\Electron V3.exe
"C:\Users\Admin\AppData\Local\Temp\Electron V3.1\Electron V3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Users\Admin\AppData\Local\Temp\Electron V3.exe
  "C:\Users\Admin\AppData\Local\Temp\Electron V3.exe"
  2⤵
  - Executes dropped EXE
  PID:4748
- C:\Users\Admin\AppData\Local\Temp\Result.exe
  "C:\Users\Admin\AppData\Local\Temp\Result.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1920
- - C:\Users\Admin\AppData\Local\Temp\Intel (R).exe
    "C:\Users\Admin\AppData\Local\Temp\Intel (R).exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:3704
  - - C:\Users\Admin\AppData\Local\Temp\onefile_3704_133631820244178165\test.exe
      "C:\Users\Admin\AppData\Local\Temp\Intel (R).exe"
      4⤵
      Drops startup file
      Executes dropped EXE
      Loads dropped DLL
      Maps connected drives based on registry
      Checks SCSI registry key(s)
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:3352
    - - C:\Users\Admin\AppData\Local\Temp\onefile_3704_133631820244178165\test.exe
        
        "C:\Users\Admin\AppData\Local\Temp\onefile_3704_133631820244178165\test.exe" "--multiprocessing-fork" "parent_pid=3352" "pipe_handle=652"
        5⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:4660
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c "taskkill /f /im brave.exe"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:460
        
        C:\Windows\system32\taskkill.exe
        
        taskkill /f /im brave.exe
        7⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:656
    - - C:\Users\Admin\AppData\Local\Temp\onefile_3704_133631820244178165\test.exe
        
        "C:\Users\Admin\AppData\Local\Temp\onefile_3704_133631820244178165\test.exe" "--multiprocessing-fork" "parent_pid=3352" "pipe_handle=628"
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:2800
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c "taskkill /f /im opera.exe"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:1896
        
        C:\Windows\system32\taskkill.exe
        
        taskkill /f /im opera.exe
        7⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:2384
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c "taskkill /f /im vivaldi.exe"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:800
        
        C:\Windows\system32\taskkill.exe
        
        taskkill /f /im vivaldi.exe
        7⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:3508
    - - C:\Users\Admin\AppData\Local\Temp\onefile_3704_133631820244178165\test.exe
        
        "C:\Users\Admin\AppData\Local\Temp\onefile_3704_133631820244178165\test.exe" "--multiprocessing-fork" "parent_pid=3352" "pipe_handle=668"
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:2524
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c "taskkill /f /im chrome.exe"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:2468
        
        C:\Windows\system32\taskkill.exe
        
        taskkill /f /im chrome.exe
        7⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1580
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c "taskkill /f /im browser.exe"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:1908
        
        C:\Windows\system32\taskkill.exe
        
        taskkill /f /im browser.exe
        7⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1572
    - - C:\Users\Admin\AppData\Local\Temp\onefile_3704_133631820244178165\test.exe
        
        "C:\Users\Admin\AppData\Local\Temp\onefile_3704_133631820244178165\test.exe" "--multiprocessing-fork" "parent_pid=3352" "pipe_handle=716"
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        Checks processor information in registry
        Suspicious use of WriteProcessMemory
        
        PID:4944
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c "taskkill /f /im msedge.exe"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:3716
        
        C:\Windows\system32\taskkill.exe
        
        taskkill /f /im msedge.exe
        7⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4368
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c "ver"
        6⤵
        
        PID:4016
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c "ver"
        6⤵
        
        PID:3172
    - - C:\Users\Admin\AppData\Local\Temp\onefile_3704_133631820244178165\test.exe
        
        "C:\Users\Admin\AppData\Local\Temp\onefile_3704_133631820244178165\test.exe" "--multiprocessing-fork" "parent_pid=3352" "pipe_handle=740"
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:4972
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c "taskkill /f /im opera.exe"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:3652
        
        C:\Windows\system32\taskkill.exe
        
        taskkill /f /im opera.exe
        7⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:3776
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c "powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe'"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1924
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe'
        6⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3108
- - C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    3⤵
    - 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:1640
  - - C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:4888

C:\Windows\servicing\TrustedInstaller.exe
C:\Windows\servicing\TrustedInstaller.exe
1⤵
PID:4368

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4488

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5008

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery