xworm | 90c52c013f848e753497323f4921ffb9f8e6c3704daad58ea2940426a4da0bd9

General

Target

4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe
Size

70KB
MD5

109adf5a32829b151d536e30a81ee96b
SHA1

dc23006a97e7d5bc34eedec563432e63ed6a226a
SHA256

4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311
SHA512

74e7fb13e195dcf6b8ed0f40c034925c3762b2e0c43c8faede99ce79a4b07966ff5336769db3f9f5bb4c0478cefc879d59b43d5ded5bda3e75d19bd0a1e9e9e5
SSDEEP

1536:QeYZA06UMG73jWw9o5zeS6LQR9bAayaIMbckM6mfOWcNFOfab:QfZxfMGTFXS6LQR9bAaZbfsfOPMab

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

involved-hurt.gl.at.ply.gg:35238

Attributes

Install_directory
%LocalAppData%
install_file
WindowsHealthSystem.exe

Signatures

Detect Xworm Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1992-0-0x00000000008C0000-0x00000000008D8000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Local\WindowsHealthSystem.exe	family_xworm
behavioral1/memory/2128-62-0x0000000000F80000-0x0000000000F98000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Drops startup file 2 IoCs

Processes:

4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsHealthSystem.lnk	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsHealthSystem.lnk	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe

Executes dropped EXE 2 IoCs

Processes:

WindowsHealthSystem.exeWindowsHealthSystem.exe

pid process

2128 WindowsHealthSystem.exe
852 WindowsHealthSystem.exe

pid	process
2128	WindowsHealthSystem.exe
852	WindowsHealthSystem.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsHealthSystem = "C:\\Users\\Admin\\AppData\\Local\\WindowsHealthSystem.exe"	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.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

1580 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe

pid process

1992 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe

pid	process
1580	schtasks.exe

pid	process
1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe

pid	process
2976	powershell.exe
2648	powershell.exe
2400	powershell.exe
1656	powershell.exe
1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exepowershell.exepowershell.exepowershell.exepowershell.exeWindowsHealthSystem.exeWindowsHealthSystem.exe

description	pid	process
Token: SeDebugPrivilege	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe
Token: SeDebugPrivilege	2976	powershell.exe
Token: SeDebugPrivilege	2648	powershell.exe
Token: SeDebugPrivilege	2400	powershell.exe
Token: SeDebugPrivilege	1656	powershell.exe
Token: SeDebugPrivilege	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe
Token: SeDebugPrivilege	2128	WindowsHealthSystem.exe
Token: SeDebugPrivilege	852	WindowsHealthSystem.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe

pid process

1992 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe

pid	process
1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exetaskeng.exe

description	pid	process	target process
PID 1992 wrote to memory of 2976	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	powershell.exe
PID 1992 wrote to memory of 2976	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	powershell.exe
PID 1992 wrote to memory of 2976	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	powershell.exe
PID 1992 wrote to memory of 2648	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	powershell.exe
PID 1992 wrote to memory of 2648	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	powershell.exe
PID 1992 wrote to memory of 2648	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	powershell.exe
PID 1992 wrote to memory of 2400	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	powershell.exe
PID 1992 wrote to memory of 2400	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	powershell.exe
PID 1992 wrote to memory of 2400	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	powershell.exe
PID 1992 wrote to memory of 1656	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	powershell.exe
PID 1992 wrote to memory of 1656	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	powershell.exe
PID 1992 wrote to memory of 1656	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	powershell.exe
PID 1992 wrote to memory of 1580	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	schtasks.exe
PID 1992 wrote to memory of 1580	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	schtasks.exe
PID 1992 wrote to memory of 1580	1992	4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe	schtasks.exe
PID 1668 wrote to memory of 2128	1668	taskeng.exe	WindowsHealthSystem.exe
PID 1668 wrote to memory of 2128	1668	taskeng.exe	WindowsHealthSystem.exe
PID 1668 wrote to memory of 2128	1668	taskeng.exe	WindowsHealthSystem.exe
PID 1668 wrote to memory of 852	1668	taskeng.exe	WindowsHealthSystem.exe
PID 1668 wrote to memory of 852	1668	taskeng.exe	WindowsHealthSystem.exe
PID 1668 wrote to memory of 852	1668	taskeng.exe	WindowsHealthSystem.exe

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\4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe
"C:\Users\Admin\AppData\Local\Temp\4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1992

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\4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2976

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2648

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\WindowsHealthSystem.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2400

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'WindowsHealthSystem.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1656

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "WindowsHealthSystem" /tr "C:\Users\Admin\AppData\Local\WindowsHealthSystem.exe"
2⤵
- Creates scheduled task(s)
PID:1580

C:\Windows\system32\taskeng.exe
taskeng.exe {165ED6C8-B008-4F6E-BCEF-51EA78FB2FE1} S-1-5-21-2721934792-624042501-2768869379-1000:BISMIZHX\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1668

C:\Users\Admin\AppData\Local\WindowsHealthSystem.exe
C:\Users\Admin\AppData\Local\WindowsHealthSystem.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2128

C:\Users\Admin\AppData\Local\WindowsHealthSystem.exe
C:\Users\Admin\AppData\Local\WindowsHealthSystem.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:852

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\WindowsHealthSystem.exe
Filesize
70KB

MD5
109adf5a32829b151d536e30a81ee96b

SHA1
dc23006a97e7d5bc34eedec563432e63ed6a226a

SHA256
4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311

SHA512
74e7fb13e195dcf6b8ed0f40c034925c3762b2e0c43c8faede99ce79a4b07966ff5336769db3f9f5bb4c0478cefc879d59b43d5ded5bda3e75d19bd0a1e9e9e5

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize
7KB

MD5
c58e8a7366da0a2deba3d9c7fcfb1f7a

SHA1
3413889c3ffa7a7745f45ebc7e059bd19f734326

SHA256
e585814f99fa10d1a3b02afbc2b89d96b0804f411cf06889aad07d97afb01dde

SHA512
050c13efb68ef0306930794027a72dbc898629837d4ed05d8c98101f0d0eb953e6eea2829a9897e1158520820ec1bb2a5f197a98a7cbabcd80e39d057bd9f0a7

Download Submit
memory/852-67-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

Filesize
9.9MB

Download
memory/852-66-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

Filesize
9.9MB

Download
memory/1656-47-0x000007FEEDCF0000-0x000007FEEE68D000-memory.dmp

Filesize
9.6MB

Download
memory/1656-45-0x000007FEEDCF0000-0x000007FEEE68D000-memory.dmp

Filesize
9.6MB

Download
memory/1656-48-0x0000000002CB0000-0x0000000002D30000-memory.dmp

Filesize
512KB

Download
memory/1656-51-0x000007FEEDCF0000-0x000007FEEE68D000-memory.dmp

Filesize
9.6MB

Download
memory/1656-49-0x0000000002CB0000-0x0000000002D30000-memory.dmp

Filesize
512KB

Download
memory/1656-46-0x0000000002CB0000-0x0000000002D30000-memory.dmp

Filesize
512KB

Download
memory/1992-0-0x00000000008C0000-0x00000000008D8000-memory.dmp

Filesize
96KB

Download
memory/1992-57-0x000000001B020000-0x000000001B0A0000-memory.dmp

Filesize
512KB

Download
memory/1992-56-0x000000001B020000-0x000000001B0A0000-memory.dmp

Filesize
512KB

Download
memory/1992-50-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

Filesize
9.9MB

Download
memory/1992-1-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

Filesize
9.9MB

Download
memory/2128-62-0x0000000000F80000-0x0000000000F98000-memory.dmp

Filesize
96KB

Download
memory/2128-63-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

Filesize
9.9MB

Download
memory/2128-64-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

Filesize
9.9MB

Download
memory/2400-38-0x000007FEEE690000-0x000007FEEF02D000-memory.dmp

Filesize
9.6MB

Download
memory/2400-39-0x000007FEEE690000-0x000007FEEF02D000-memory.dmp

Filesize
9.6MB

Download
memory/2400-37-0x0000000002CCB000-0x0000000002D32000-memory.dmp

Filesize
412KB

Download
memory/2400-35-0x0000000002CC0000-0x0000000002D40000-memory.dmp

Filesize
512KB

Download
memory/2400-34-0x000007FEEE690000-0x000007FEEF02D000-memory.dmp

Filesize
9.6MB

Download
memory/2400-36-0x0000000002CC4000-0x0000000002CC7000-memory.dmp

Filesize
12KB

Download
memory/2648-28-0x000007FEEDCF0000-0x000007FEEE68D000-memory.dmp

Filesize
9.6MB

Download
memory/2648-25-0x0000000002D30000-0x0000000002DB0000-memory.dmp

Filesize
512KB

Download
memory/2648-26-0x0000000002D30000-0x0000000002DB0000-memory.dmp

Filesize
512KB

Download
memory/2648-27-0x0000000002D30000-0x0000000002DB0000-memory.dmp

Filesize
512KB

Download
memory/2648-24-0x000007FEEDCF0000-0x000007FEEE68D000-memory.dmp

Filesize
9.6MB

Download
memory/2648-23-0x0000000002D30000-0x0000000002DB0000-memory.dmp

Filesize
512KB

Download
memory/2648-21-0x000007FEEDCF0000-0x000007FEEE68D000-memory.dmp

Filesize
9.6MB

Download
memory/2648-22-0x0000000002390000-0x0000000002398000-memory.dmp

Filesize
32KB

Download
memory/2648-20-0x000000001B630000-0x000000001B912000-memory.dmp

Filesize
2.9MB

Download
memory/2976-14-0x000007FEEE690000-0x000007FEEF02D000-memory.dmp

Filesize
9.6MB

Download
memory/2976-13-0x0000000002A00000-0x0000000002A80000-memory.dmp

Filesize
512KB

Download
memory/2976-10-0x000007FEEE690000-0x000007FEEF02D000-memory.dmp

Filesize
9.6MB

Download
memory/2976-11-0x0000000002A00000-0x0000000002A80000-memory.dmp

Filesize
512KB

Download
memory/2976-12-0x0000000002A00000-0x0000000002A80000-memory.dmp

Filesize
512KB

Download
memory/2976-9-0x0000000002A00000-0x0000000002A80000-memory.dmp

Filesize
512KB

Download
memory/2976-8-0x000007FEEE690000-0x000007FEEF02D000-memory.dmp

Filesize
9.6MB

Download
memory/2976-7-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/2976-6-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads