xworm | 827d6cec5db8ba1d6465bf99d1565259a96804840964aed7e2de4594b482b955

General

Target

ChromeX.exe
Size

194KB
MD5

a1e62820b5ef69092346f3d9db6fd9ac
SHA1

ac2ef78ee68befd3cf26ca87d9e8e6311796e908
SHA256

827d6cec5db8ba1d6465bf99d1565259a96804840964aed7e2de4594b482b955
SHA512

3e4358a010c3ea67151529a619981d92ca2e43145d8928835b27562d4ec7fa480bf1b008fe0a826997a0528f7526eaf08669b1de00655293a47bef28052ee88f
SSDEEP

3072:O6Ok77/lR+b+rAzOnXTBg4NpVq8BxFRzaqF+o2GQJ7/JzqVfGvU:0k77/yb+sqBggVqwlL

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

downloads-pumps.gl.at.ply.gg:42186

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2228-1-0x00000000008E0000-0x0000000000916000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
2188	powershell.exe
2728	powershell.exe
2396	powershell.exe
2748	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	ChromeX.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	ChromeX.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-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	ChromeX.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2396	powershell.exe
2748	powershell.exe
2188	powershell.exe
2728	powershell.exe
2228	ChromeX.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2228	ChromeX.exe
Token: SeDebugPrivilege	2396	powershell.exe
Token: SeDebugPrivilege	2748	powershell.exe
Token: SeDebugPrivilege	2188	powershell.exe
Token: SeDebugPrivilege	2728	powershell.exe
Token: SeDebugPrivilege	2228	ChromeX.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2228	ChromeX.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2396	2228	ChromeX.exe	28
PID 2228 wrote to memory of 2396	2228	ChromeX.exe	28
PID 2228 wrote to memory of 2396	2228	ChromeX.exe	28
PID 2228 wrote to memory of 2748	2228	ChromeX.exe	30
PID 2228 wrote to memory of 2748	2228	ChromeX.exe	30
PID 2228 wrote to memory of 2748	2228	ChromeX.exe	30
PID 2228 wrote to memory of 2188	2228	ChromeX.exe	32
PID 2228 wrote to memory of 2188	2228	ChromeX.exe	32
PID 2228 wrote to memory of 2188	2228	ChromeX.exe	32
PID 2228 wrote to memory of 2728	2228	ChromeX.exe	34
PID 2228 wrote to memory of 2728	2228	ChromeX.exe	34
PID 2228 wrote to memory of 2728	2228	ChromeX.exe	34

C:\Users\Admin\AppData\Local\Temp\ChromeX.exe
"C:\Users\Admin\AppData\Local\Temp\ChromeX.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:2228
- 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\ChromeX.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2396
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'ChromeX.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2748
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2188
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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
a2fd696c50131ad997b5f76ba4613211

SHA1
480bc06fb673fc6b215df3138419fa90b6241eab

SHA256
85e16bb44c3e542beedb6c5686ae74608d31fdd7a07c830a3116b2f6bc37067e

SHA512
dd0423563831373d07c395b005be82c0d94f0628fc7051417a4f93650d989accc5237d83b3c8cc50954d87a199e0b0243ee43f5cd9a22debdcebb2681832f0dd

Download Submit
memory/2228-1-0x00000000008E0000-0x0000000000916000-memory.dmp

Filesize
216KB

Download
memory/2228-34-0x00000000020D0000-0x00000000020DC000-memory.dmp

Filesize
48KB

Download
memory/2228-0-0x000007FEF5DC3000-0x000007FEF5DC4000-memory.dmp

Filesize
4KB

Download
memory/2228-33-0x000000001A910000-0x000000001A990000-memory.dmp

Filesize
512KB

Download
memory/2228-32-0x000007FEF5DC3000-0x000007FEF5DC4000-memory.dmp

Filesize
4KB

Download
memory/2228-31-0x000000001A910000-0x000000001A990000-memory.dmp

Filesize
512KB

Download
memory/2396-7-0x000000001B5E0000-0x000000001B8C2000-memory.dmp

Filesize
2.9MB

Download
memory/2396-8-0x00000000026E0000-0x00000000026E8000-memory.dmp

Filesize
32KB

Download
memory/2396-6-0x00000000028C0000-0x0000000002940000-memory.dmp

Filesize
512KB

Download
memory/2748-15-0x0000000001F70000-0x0000000001F78000-memory.dmp

Filesize
32KB

Download
memory/2748-14-0x000000001B5E0000-0x000000001B8C2000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads