xworm | ba7870c7dc4758619f3177530963242ac3f60377d6336f9de21cca95f70f77da

General

Target

XClient.exe
Size

82KB
MD5

5426b946b13d22a259acc2c54a2b29cc
SHA1

f30ff456b32744540aef13831a2eff8b06f73a21
SHA256

ba7870c7dc4758619f3177530963242ac3f60377d6336f9de21cca95f70f77da
SHA512

955c079e8b08f27e81720a2f790e340e2f05004463fe1fd00b1e2119246f0be03a5180919482b5fbd274f08905045b21e477978269e2b9a5229405274cbf3fd6
SSDEEP

1536:oBgdBvNP/F/ADakoMmZlRqEN2kBM3Dm9bVmeSUHf969PSOo0yOqicMGwn+M:51dUIzb/kDm9bVmsiKOXyricM1+M

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

publication-glossary.gl.at.ply.gg:26117

Attributes

Install_directory
%AppData%
install_file
USB.exe
telegram
https://api.telegram.org/bot7704029346:AAHPre1lXQa0UfPCpOUXJZ9UXA9mFxvH4Gk/sendMessage?chat_id=7590668020

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2584-1-0x0000000000CE0000-0x0000000000CFA000-memory.dmp	family_xworm
behavioral1/files/0x000a000000018710-34.dat	family_xworm
behavioral1/memory/2320-36-0x0000000000940000-0x000000000095A000-memory.dmp	family_xworm
behavioral1/memory/1488-39-0x0000000001210000-0x000000000122A000-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
2372	powershell.exe
2816	powershell.exe
2928	powershell.exe
2784	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
2320	security
1488	security

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\security = "C:\\Users\\Admin\\AppData\\Roaming\\security"	XClient.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
2676	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2584	XClient.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2372	powershell.exe
2816	powershell.exe
2928	powershell.exe
2784	powershell.exe
2584	XClient.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2584	XClient.exe
Token: SeDebugPrivilege	2372	powershell.exe
Token: SeDebugPrivilege	2816	powershell.exe
Token: SeDebugPrivilege	2928	powershell.exe
Token: SeDebugPrivilege	2784	powershell.exe
Token: SeDebugPrivilege	2584	XClient.exe
Token: SeDebugPrivilege	2320	security
Token: SeDebugPrivilege	1488	security

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2584	XClient.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 2372	2584	XClient.exe	30
PID 2584 wrote to memory of 2372	2584	XClient.exe	30
PID 2584 wrote to memory of 2372	2584	XClient.exe	30
PID 2584 wrote to memory of 2816	2584	XClient.exe	32
PID 2584 wrote to memory of 2816	2584	XClient.exe	32
PID 2584 wrote to memory of 2816	2584	XClient.exe	32
PID 2584 wrote to memory of 2928	2584	XClient.exe	34
PID 2584 wrote to memory of 2928	2584	XClient.exe	34
PID 2584 wrote to memory of 2928	2584	XClient.exe	34
PID 2584 wrote to memory of 2784	2584	XClient.exe	36
PID 2584 wrote to memory of 2784	2584	XClient.exe	36
PID 2584 wrote to memory of 2784	2584	XClient.exe	36
PID 2584 wrote to memory of 2676	2584	XClient.exe	38
PID 2584 wrote to memory of 2676	2584	XClient.exe	38
PID 2584 wrote to memory of 2676	2584	XClient.exe	38
PID 2444 wrote to memory of 2320	2444	taskeng.exe	43
PID 2444 wrote to memory of 2320	2444	taskeng.exe	43
PID 2444 wrote to memory of 2320	2444	taskeng.exe	43
PID 2444 wrote to memory of 1488	2444	taskeng.exe	44
PID 2444 wrote to memory of 1488	2444	taskeng.exe	44
PID 2444 wrote to memory of 1488	2444	taskeng.exe	44

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\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.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:2584
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2372
- 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:2816
- 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\security'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2928
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'security'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2784
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "security" /tr "C:\Users\Admin\AppData\Roaming\security"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2676

C:\Windows\system32\taskeng.exe
taskeng.exe {7B1121B8-C1E7-4090-A317-D174FD792D44} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Users\Admin\AppData\Roaming\security
  C:\Users\Admin\AppData\Roaming\security
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2320
- C:\Users\Admin\AppData\Roaming\security
  C:\Users\Admin\AppData\Roaming\security
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1488

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\TV94UKJDNK57D5DUQTJJ.temp

Filesize
7KB

MD5
06ea60edfdd419a2bcb91ddbc26ccaee

SHA1
f406399fd11763f467c868423099c89eb01a9e50

SHA256
c92e2e5b22071464ae4bbdea75d9658350f76981cebc12920070f03192235de0

SHA512
c23a8f08b0ccb3fbae4cc522e9441501f27b841f5178c3f5808ce39b641e389fff6dff87676fd8399a358b44ba77f38946356482546127748b7094fa90b2d181

Download Submit
C:\Users\Admin\AppData\Roaming\security

Filesize
82KB

MD5
5426b946b13d22a259acc2c54a2b29cc

SHA1
f30ff456b32744540aef13831a2eff8b06f73a21

SHA256
ba7870c7dc4758619f3177530963242ac3f60377d6336f9de21cca95f70f77da

SHA512
955c079e8b08f27e81720a2f790e340e2f05004463fe1fd00b1e2119246f0be03a5180919482b5fbd274f08905045b21e477978269e2b9a5229405274cbf3fd6

Download Submit
memory/1488-39-0x0000000001210000-0x000000000122A000-memory.dmp

Filesize
104KB

Download
memory/2320-36-0x0000000000940000-0x000000000095A000-memory.dmp

Filesize
104KB

Download
memory/2372-6-0x00000000028C0000-0x0000000002940000-memory.dmp

Filesize
512KB

Download
memory/2372-7-0x000000001B520000-0x000000001B802000-memory.dmp

Filesize
2.9MB

Download
memory/2372-8-0x0000000001F70000-0x0000000001F78000-memory.dmp

Filesize
32KB

Download
memory/2584-30-0x000000001B3E0000-0x000000001B460000-memory.dmp

Filesize
512KB

Download
memory/2584-0-0x000007FEF67C3000-0x000007FEF67C4000-memory.dmp

Filesize
4KB

Download
memory/2584-31-0x000007FEF67C3000-0x000007FEF67C4000-memory.dmp

Filesize
4KB

Download
memory/2584-32-0x000000001B3E0000-0x000000001B460000-memory.dmp

Filesize
512KB

Download
memory/2584-1-0x0000000000CE0000-0x0000000000CFA000-memory.dmp

Filesize
104KB

Download
memory/2816-15-0x00000000022A0000-0x00000000022A8000-memory.dmp

Filesize
32KB

Download
memory/2816-14-0x000000001B620000-0x000000001B902000-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