xworm | bd55ac1b7d62bc032cc9574a7690ba96dcb906e8edbac57e3a5376db694f1d81

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
28/02/2025, 20:14

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General

Target

YOU.exe
Size

955KB
MD5

eb86db27432e31d958931668b20dd18d
SHA1

12a8af666e5f1018071b46cb04df4a34384bb6be
SHA256

5f0a6832da6604ee51d0072fa8ae6ad9b0151074c30c6a08acaad43d339abdf7
SHA512

545b2ccdadb21aadc12a820ede8d4a730614d430816745aae817a4110cc36fa6891ff04e206d020f914debd388257222afcbbead55a2d88cd13e9e72b9ac938e
SSDEEP

24576:Iu6J33O0c+JY5UZ+XC0kGso6Fak67DeQlaWY:iu0c++OCvkGs9Fak8DY

Score

10^/10

xworm discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

176.96.137.181:2222

Attributes

Install_directory
%AppData%
install_file
XClient2.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/5012-17-0x00000000005C0000-0x00000000005DA000-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
3436	powershell.exe
3696	powershell.exe
3700	powershell.exe
4916	powershell.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\avenses.vbs	avenses.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient2.lnk	RegSvcs.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient2.lnk	RegSvcs.exe

Executes dropped EXE 3 IoCs

pid	Process
1260	avenses.exe
1384	XClient2.exe
4728	XClient2.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-1-5-21-1170604239-850860757-3112005715-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient2 = "C:\\Users\\Admin\\AppData\\Roaming\\XClient2.exe"	RegSvcs.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x000b000000023be2-8.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1260 set thread context of 5012	1260	avenses.exe	88

System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	XClient2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	XClient2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	YOU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	avenses.exe

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
1608	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3436	powershell.exe
3436	powershell.exe
3696	powershell.exe
3696	powershell.exe
3700	powershell.exe
3700	powershell.exe
4916	powershell.exe
4916	powershell.exe
5012	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1260	avenses.exe
1260	avenses.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	5012	RegSvcs.exe
Token: SeDebugPrivilege	3436	powershell.exe
Token: SeDebugPrivilege	3696	powershell.exe
Token: SeDebugPrivilege	3700	powershell.exe
Token: SeDebugPrivilege	4916	powershell.exe
Token: SeDebugPrivilege	5012	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1520	YOU.exe
1520	YOU.exe
1260	avenses.exe
1260	avenses.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1520	YOU.exe
1520	YOU.exe
1260	avenses.exe
1260	avenses.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5012	RegSvcs.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 1260	1520	YOU.exe	87
PID 1520 wrote to memory of 1260	1520	YOU.exe	87
PID 1520 wrote to memory of 1260	1520	YOU.exe	87
PID 1260 wrote to memory of 5012	1260	avenses.exe	88
PID 1260 wrote to memory of 5012	1260	avenses.exe	88
PID 1260 wrote to memory of 5012	1260	avenses.exe	88
PID 1260 wrote to memory of 5012	1260	avenses.exe	88
PID 5012 wrote to memory of 3436	5012	RegSvcs.exe	93
PID 5012 wrote to memory of 3436	5012	RegSvcs.exe	93
PID 5012 wrote to memory of 3436	5012	RegSvcs.exe	93
PID 5012 wrote to memory of 3696	5012	RegSvcs.exe	97
PID 5012 wrote to memory of 3696	5012	RegSvcs.exe	97
PID 5012 wrote to memory of 3696	5012	RegSvcs.exe	97
PID 5012 wrote to memory of 3700	5012	RegSvcs.exe	100
PID 5012 wrote to memory of 3700	5012	RegSvcs.exe	100
PID 5012 wrote to memory of 3700	5012	RegSvcs.exe	100
PID 5012 wrote to memory of 4916	5012	RegSvcs.exe	102
PID 5012 wrote to memory of 4916	5012	RegSvcs.exe	102
PID 5012 wrote to memory of 4916	5012	RegSvcs.exe	102
PID 5012 wrote to memory of 1608	5012	RegSvcs.exe	104
PID 5012 wrote to memory of 1608	5012	RegSvcs.exe	104
PID 5012 wrote to memory of 1608	5012	RegSvcs.exe	104

C:\Users\Admin\AppData\Local\Temp\YOU.exe
"C:\Users\Admin\AppData\Local\Temp\YOU.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Users\Admin\AppData\Local\untrashed\avenses.exe
  "C:\Users\Admin\AppData\Local\Temp\YOU.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1260
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\YOU.exe"
    3⤵
    - Drops startup file
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:5012
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3436
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'RegSvcs.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3696
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient2.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3700
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient2.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4916
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient2" /tr "C:\Users\Admin\AppData\Roaming\XClient2.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1608

C:\Users\Admin\AppData\Roaming\XClient2.exe
C:\Users\Admin\AppData\Roaming\XClient2.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1384

C:\Users\Admin\AppData\Roaming\XClient2.exe
C:\Users\Admin\AppData\Roaming\XClient2.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\XClient2.exe.log

Filesize
142B

MD5
8c0458bb9ea02d50565175e38d577e35

SHA1
f0b50702cd6470f3c17d637908f83212fdbdb2f2

SHA256
c578e86db701b9afa3626e804cf434f9d32272ff59fb32fa9a51835e5a148b53

SHA512
804a47494d9a462ffa6f39759480700ecbe5a7f3a15ec3a6330176ed9c04695d2684bf6bf85ab86286d52e7b727436d0bb2e8da96e20d47740b5ce3f856b5d0f

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
09a70c335c7bf4a3d147173c9c8bde00

SHA1
8733973f7dbd7a6784f4f83671c301f22c0979d2

SHA256
a62ae8c38e28d9340029f1befae41eaa206961bebfade22e39fdf246d6a581ad

SHA512
b8965db33060d299cd5ee3e83812a3c0d9ed598a6b9ee0b27398df3ca85e169c40b47c4456b08b4c00e37ab3fb4efa076c650b8d82469e03f331ba77223c06d0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
9388b6689dd61f681c96c0a02d2c80af

SHA1
b52b747ab06a9450cd1f22bb94201eb2a946e0c7

SHA256
b2347c7c998bb004f2ac5d3311c44713cc7533803904a3075fab4464f3c17415

SHA512
dc730f1cefce99175472589fe527abad65b4d197a37cb381d5eb359f53ccb53bf6e1a7f33d259245089e5c6526c716eed9a62cb4a3506b7eaaf78bbde1823b82

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
2c633803ecaf412c43b5b423bdc0eca9

SHA1
842d7d3ad0d94962090a7d1ded55b4a54923f8a9

SHA256
a6efd0ef0e8f672bb8019aaa72f36d0129765cf55d5e4dd0082cf903473ab8bb

SHA512
8004ff2334df68c251708f816438539d3f70c07b338c7b761924414eeae666a049454c9509bcb0b7b79618695e303b66368e93dc92d8bc8549b1c8bdf3ba4d59

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_44wyfc0v.pl0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\untrashed\avenses.exe

Filesize
955KB

MD5
eb86db27432e31d958931668b20dd18d

SHA1
12a8af666e5f1018071b46cb04df4a34384bb6be

SHA256
5f0a6832da6604ee51d0072fa8ae6ad9b0151074c30c6a08acaad43d339abdf7

SHA512
545b2ccdadb21aadc12a820ede8d4a730614d430816745aae817a4110cc36fa6891ff04e206d020f914debd388257222afcbbead55a2d88cd13e9e72b9ac938e

Download Submit
C:\Users\Admin\AppData\Roaming\XClient2.exe

Filesize
44KB

MD5
9d352bc46709f0cb5ec974633a0c3c94

SHA1
1969771b2f022f9a86d77ac4d4d239becdf08d07

SHA256
2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390

SHA512
13c714244ec56beeb202279e4109d59c2a43c3cf29f90a374a751c04fd472b45228ca5a0178f41109ed863dbd34e0879e4a21f5e38ae3d89559c57e6be990a9b

Download Submit
memory/1384-141-0x00000000030F0000-0x0000000003111000-memory.dmp

Filesize
132KB

Download
memory/1384-140-0x0000000005680000-0x00000000056BC000-memory.dmp

Filesize
240KB

Download
memory/1384-139-0x0000000000E90000-0x0000000000E9E000-memory.dmp

Filesize
56KB

Download
memory/1520-5-0x0000000004000000-0x0000000004008000-memory.dmp

Filesize
32KB

Download
memory/3436-57-0x00000000075E0000-0x00000000075FA000-memory.dmp

Filesize
104KB

Download
memory/3436-20-0x0000000002670000-0x00000000026A6000-memory.dmp

Filesize
216KB

Download
memory/3436-37-0x0000000006550000-0x0000000006582000-memory.dmp

Filesize
200KB

Download
memory/3436-38-0x0000000070440000-0x000000007048C000-memory.dmp

Filesize
304KB

Download
memory/3436-48-0x0000000007140000-0x000000000715E000-memory.dmp

Filesize
120KB

Download
memory/3436-49-0x0000000007170000-0x0000000007213000-memory.dmp

Filesize
652KB

Download
memory/3436-50-0x00000000078E0000-0x0000000007F5A000-memory.dmp

Filesize
6.5MB

Download
memory/3436-51-0x00000000072A0000-0x00000000072BA000-memory.dmp

Filesize
104KB

Download
memory/3436-52-0x0000000007310000-0x000000000731A000-memory.dmp

Filesize
40KB

Download
memory/3436-53-0x0000000007520000-0x00000000075B6000-memory.dmp

Filesize
600KB

Download
memory/3436-54-0x00000000074A0000-0x00000000074B1000-memory.dmp

Filesize
68KB

Download
memory/3436-55-0x00000000074D0000-0x00000000074DE000-memory.dmp

Filesize
56KB

Download
memory/3436-56-0x00000000074E0000-0x00000000074F4000-memory.dmp

Filesize
80KB

Download
memory/3436-34-0x0000000005BC0000-0x0000000005F14000-memory.dmp

Filesize
3.3MB

Download
memory/3436-58-0x00000000075C0000-0x00000000075C8000-memory.dmp

Filesize
32KB

Download
memory/3436-21-0x0000000005250000-0x0000000005878000-memory.dmp

Filesize
6.2MB

Download
memory/3436-23-0x00000000058F0000-0x0000000005956000-memory.dmp

Filesize
408KB

Download
memory/3436-36-0x0000000005FC0000-0x000000000600C000-memory.dmp

Filesize
304KB

Download
memory/3436-35-0x0000000005F70000-0x0000000005F8E000-memory.dmp

Filesize
120KB

Download
memory/3436-22-0x00000000050C0000-0x00000000050E2000-memory.dmp

Filesize
136KB

Download
memory/3436-24-0x0000000005960000-0x00000000059C6000-memory.dmp

Filesize
408KB

Download
memory/3696-73-0x0000000070440000-0x000000007048C000-memory.dmp

Filesize
304KB

Download
memory/3696-71-0x0000000005830000-0x0000000005B84000-memory.dmp

Filesize
3.3MB

Download
memory/3700-95-0x0000000070440000-0x000000007048C000-memory.dmp

Filesize
304KB

Download
memory/4916-116-0x0000000070440000-0x000000007048C000-memory.dmp

Filesize
304KB

Download
memory/5012-18-0x0000000074F8E000-0x0000000074F8F000-memory.dmp

Filesize
4KB

Download
memory/5012-133-0x0000000006240000-0x00000000062D2000-memory.dmp

Filesize
584KB

Download
memory/5012-134-0x0000000005B20000-0x0000000005B2A000-memory.dmp

Filesize
40KB

Download
memory/5012-135-0x0000000074F80000-0x0000000075730000-memory.dmp

Filesize
7.7MB

Download
memory/5012-132-0x0000000074F80000-0x0000000075730000-memory.dmp

Filesize
7.7MB

Download
memory/5012-131-0x0000000005B90000-0x0000000006134000-memory.dmp

Filesize
5.6MB

Download
memory/5012-17-0x00000000005C0000-0x00000000005DA000-memory.dmp

Filesize
104KB

Download
memory/5012-83-0x0000000074F8E000-0x0000000074F8F000-memory.dmp

Filesize
4KB

Download
memory/5012-19-0x0000000004C20000-0x0000000004CBC000-memory.dmp

Filesize
624KB

Download