xworm | f8ed103574089d431ad8eaac8c8cba0240da701beb8df26011c7c97a6c981182

General

Target

gta.exe
Size

256KB
MD5

38405cd821fa35824d367aedff252ed2
SHA1

b70f9b3de189a89762d31caf11aafad410f2b1bd
SHA256

f8ed103574089d431ad8eaac8c8cba0240da701beb8df26011c7c97a6c981182
SHA512

c3225c965a817487ec0453a0ed9dd6807983fa3980fc5da2f9d8767fc7cbfa1557d2c0d8754c77be94217a5676737cdf152a64f383cebc2bf9f1198f5b7bd5a3
SSDEEP

3072:nOoQq3wNXKk2zg3bQqTJAOJh23R6eBdte1FKNfAc/vnew0sFetD79OzWPEMiZJ:nV+6/zcb9VGfAc/v10sQOzWPEh

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.1

C2

127.0.0.1:37897

global-protective.gl.at.ply.gg:37897:37897

global-protective.gl.at.ply.gg:37897

Attributes

Install_directory
%ProgramData%
install_file
nerat.exe
telegram
https://api.telegram.org/bot7268785583:AAFvSoXRrVhV7krjc8W8iUc9VL5ZyOqftLY

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1688-1-0x0000000000070000-0x00000000000B4000-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
2208	powershell.exe
2688	powershell.exe
2560	powershell.exe
2552	powershell.exe

Drops startup file 2 IoCs

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

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
4	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2208	powershell.exe
2688	powershell.exe
2560	powershell.exe
2552	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1688	gta.exe
Token: SeDebugPrivilege	2208	powershell.exe
Token: SeDebugPrivilege	2688	powershell.exe
Token: SeDebugPrivilege	2560	powershell.exe
Token: SeDebugPrivilege	2552	powershell.exe
Token: SeDebugPrivilege	1688	gta.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1688 wrote to memory of 2208	1688	gta.exe	32
PID 1688 wrote to memory of 2208	1688	gta.exe	32
PID 1688 wrote to memory of 2208	1688	gta.exe	32
PID 1688 wrote to memory of 2688	1688	gta.exe	34
PID 1688 wrote to memory of 2688	1688	gta.exe	34
PID 1688 wrote to memory of 2688	1688	gta.exe	34
PID 1688 wrote to memory of 2560	1688	gta.exe	36
PID 1688 wrote to memory of 2560	1688	gta.exe	36
PID 1688 wrote to memory of 2560	1688	gta.exe	36
PID 1688 wrote to memory of 2552	1688	gta.exe	38
PID 1688 wrote to memory of 2552	1688	gta.exe	38
PID 1688 wrote to memory of 2552	1688	gta.exe	38

C:\Users\Admin\AppData\Local\Temp\gta.exe
"C:\Users\Admin\AppData\Local\Temp\gta.exe"
1⤵
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1688
- 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\gta.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2208
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'gta.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2688
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\nerat.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2560
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'nerat.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
7KB

MD5
fc1016e626c1fc6cdd8359226abb7776

SHA1
ea5e452c75109cf150ccd1610c9b8c24204ea3df

SHA256
ae2995f90ddde41cc16669dc7d091ea357cb5fe48f8a1bda9d3cde0dfe5ad170

SHA512
ba670ba6c8a3d8002f0589ee6a5488243c8e8c34c4e933133da47fe78ec2ae077458fb76a92cf31efb5778b704b7625ad556be3738d8cab10f546f81b1eddfff

Download Submit
memory/1688-0-0x000007FEF5E33000-0x000007FEF5E34000-memory.dmp

Filesize
4KB

Download
memory/1688-1-0x0000000000070000-0x00000000000B4000-memory.dmp

Filesize
272KB

Download
memory/1688-2-0x000007FEF5E30000-0x000007FEF681C000-memory.dmp

Filesize
9.9MB

Download
memory/1688-27-0x000007FEF5E33000-0x000007FEF5E34000-memory.dmp

Filesize
4KB

Download
memory/1688-32-0x000007FEF5E30000-0x000007FEF681C000-memory.dmp

Filesize
9.9MB

Download
memory/2208-7-0x0000000002970000-0x00000000029F0000-memory.dmp

Filesize
512KB

Download
memory/2208-8-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download
memory/2208-9-0x0000000002860000-0x0000000002868000-memory.dmp

Filesize
32KB

Download
memory/2688-15-0x000000001B6D0000-0x000000001B9B2000-memory.dmp

Filesize
2.9MB

Download
memory/2688-16-0x0000000001E60000-0x0000000001E68000-memory.dmp

Filesize
32KB

Download

Analysis

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