xworm | 01f2610cebe0858ca4255858f1edc97b53b87ddb7bc910a45dc6903e0796c20e

General

Target

XClientxcosmic.exe
Size

77KB
MD5

6fdb431f83e09ad8d12a9a7efed4ce39
SHA1

6300aebef12d8133926c01fdbd278342ad8c07a2
SHA256

01f2610cebe0858ca4255858f1edc97b53b87ddb7bc910a45dc6903e0796c20e
SHA512

5c41d59f47297241dd063dbf6a32038ba2a554d0ebc53912f096fcfa6801c2a6849ad92ba84ec7f2dbf88793586f0cfa63920bbbba436aba114aa2148e8345e0
SSDEEP

1536:2lMbMe8RbYLXi+bbzNyVqp5AjO6qYd9+i8p1OcWTtNZeF:/mF+bb5y240OHtN0F

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

195.88.218.113:6969

Attributes

Install_directory
%AppData%
install_file
Console Window Host.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2684-1-0x0000000000C50000-0x0000000000C6A000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1480	powershell.exe
2820	powershell.exe
2628	powershell.exe
2636	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Console Window Host.lnk	XClientxcosmic.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Console Window Host.lnk	XClientxcosmic.exe

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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\Console Window Host = "C:\\Users\\Admin\\AppData\\Roaming\\Console Window Host.exe"	XClientxcosmic.exe

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

System Information Discovery
T1082

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

T1053.005

pid	Process
2948	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1480	powershell.exe
2820	powershell.exe
2628	powershell.exe
2636	powershell.exe
2684	XClientxcosmic.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2684	XClientxcosmic.exe
Token: SeDebugPrivilege	1480	powershell.exe
Token: SeDebugPrivilege	2820	powershell.exe
Token: SeDebugPrivilege	2628	powershell.exe
Token: SeDebugPrivilege	2636	powershell.exe
Token: SeDebugPrivilege	2684	XClientxcosmic.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2684	XClientxcosmic.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 1480	2684	XClientxcosmic.exe	30
PID 2684 wrote to memory of 1480	2684	XClientxcosmic.exe	30
PID 2684 wrote to memory of 1480	2684	XClientxcosmic.exe	30
PID 2684 wrote to memory of 2820	2684	XClientxcosmic.exe	32
PID 2684 wrote to memory of 2820	2684	XClientxcosmic.exe	32
PID 2684 wrote to memory of 2820	2684	XClientxcosmic.exe	32
PID 2684 wrote to memory of 2628	2684	XClientxcosmic.exe	34
PID 2684 wrote to memory of 2628	2684	XClientxcosmic.exe	34
PID 2684 wrote to memory of 2628	2684	XClientxcosmic.exe	34
PID 2684 wrote to memory of 2636	2684	XClientxcosmic.exe	36
PID 2684 wrote to memory of 2636	2684	XClientxcosmic.exe	36
PID 2684 wrote to memory of 2636	2684	XClientxcosmic.exe	36
PID 2684 wrote to memory of 2948	2684	XClientxcosmic.exe	38
PID 2684 wrote to memory of 2948	2684	XClientxcosmic.exe	38
PID 2684 wrote to memory of 2948	2684	XClientxcosmic.exe	38

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\XClientxcosmic.exe
"C:\Users\Admin\AppData\Local\Temp\XClientxcosmic.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2684
- 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\XClientxcosmic.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1480
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClientxcosmic.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2820
- 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\Roaming\Console Window Host.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2628
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Console Window Host.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2636
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Console Window Host" /tr "C:\Users\Admin\AppData\Roaming\Console Window Host.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2948

C:\Windows\system32\taskeng.exe
taskeng.exe {53345402-736C-4410-8813-6DA88267BA42} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]
1⤵
PID:996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
fa26e84574c25d03bdfd56c0579c5526

SHA1
48b28110973f19d016863f167f071fa98ef21575

SHA256
748586a9b0700828ef1b3a237c4c5804fc6aada39f627232c0f98dfd37a3106a

SHA512
72d57057f2135609517a82a4e8e98436215bd74698a9c37cd7e539231d18b450cbadb45640429761d9993fb9b3a028d9958b0d0c0222a5f3c72513a4dd0ea8f0

Download Submit
memory/1480-6-0x0000000002BF0000-0x0000000002C70000-memory.dmp

Filesize
512KB

Download
memory/1480-7-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/1480-8-0x0000000001E00000-0x0000000001E08000-memory.dmp

Filesize
32KB

Download
memory/2684-0-0x000007FEF63C3000-0x000007FEF63C4000-memory.dmp

Filesize
4KB

Download
memory/2684-1-0x0000000000C50000-0x0000000000C6A000-memory.dmp

Filesize
104KB

Download
memory/2684-31-0x000000001A740000-0x000000001A7C0000-memory.dmp

Filesize
512KB

Download
memory/2684-32-0x000007FEF63C3000-0x000007FEF63C4000-memory.dmp

Filesize
4KB

Download
memory/2684-33-0x000000001A740000-0x000000001A7C0000-memory.dmp

Filesize
512KB

Download
memory/2820-14-0x000000001B620000-0x000000001B902000-memory.dmp

Filesize
2.9MB

Download
memory/2820-15-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads