xworm | b5e4c44dab086a0170006e9de46df82b5b8d78765fb32a59f720cd01b4ae8cae

Analysis

max time kernel
299s
max time network
292s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260706-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
07/07/2026, 12:02

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General

Target
T0053 FA 168447-168448.vbs
Size 1015KB
Sample260707-n7pccset5n
SHA256 b5e4c44dab086a0170006e9de46df82b5b8d78765fb32a59f720cd01b4ae8cae
MD5 2519f9e1e54bb82c3ebe3cd127fa36db
SHA1 56764dbde2ee30cfe90e7f95a1f51f406b33b7d2
SHA512 dbd497a54199eb56199c10228d6c164500f93224aca855ac55f483df9ae41396e7acfd2b1a1069cd9f8d0ea6cc575efd93fa303ebdc7a1817e7f21d108ef2c81
SSDEEP 96:rAZ8jDP8ElFI8zivmHqN+hdDEd1Xr7Us2WfpeG0mcU:PDdryXfUhgp/0mcU
TLSH
T1BE2541CE9E7B10585F108A1FE6E5E8904F9060652D3AC7F9E1F4946183FEE8F3158A93
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

135.136.134.57:7007

Mutex

MDFZIRlnm97dXYQQ

Attributes

install_file
USB.exe

aes.plain

Signatures

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

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3004-18-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1580	3308	powershell.exe	88

Badlisted process makes network request 2 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
2	1580	powershell.exe
3	1580	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1580 set thread context of 3004	1580	powershell.exe	92

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1580	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1580	powershell.exe
1580	powershell.exe
1580	powershell.exe
1580	powershell.exe
1580	powershell.exe
1580	powershell.exe
1580	powershell.exe
1580	powershell.exe
1580	powershell.exe
1580	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1580	powershell.exe
Token: SeDebugPrivilege	3004	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4196	conhost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1580 wrote to memory of 5076	1580	powershell.exe	91
PID 1580 wrote to memory of 3004	1580	powershell.exe	92
PID 1580 wrote to memory of 3004	1580	powershell.exe	92
PID 1580 wrote to memory of 3004	1580	powershell.exe	92
PID 1580 wrote to memory of 3004	1580	powershell.exe	92
PID 1580 wrote to memory of 3004	1580	powershell.exe	92
PID 4196 wrote to memory of 700	4196	conhost.exe	95

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:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\T0053 FA 168447-168448.vbs"
1⤵
PID:2864

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -NoProfile -Command "Invoke-Expression $env:milliner"
1⤵
- Process spawned unexpected child process
- Badlisted process makes network request
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1580
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:5076
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3004

C:\Windows\System32\conhost.exe
conhost.exe
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4196
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe
  2⤵
  PID:700

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1580-16-0x000001DBD43D0000-0x000001DBD4484000-memory.dmp

Download

memory/1580-11-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/1580-4-0x000001DBD3B30000-0x000001DBD3B52000-memory.dmp

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memory/1580-5-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/1580-0-0x00007FFB478CF000-0x00007FFB478D0000-memory.dmp

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memory/1580-7-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/1580-8-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/1580-9-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/1580-10-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/1580-24-0x000001DBD3BD0000-0x000001DBD3BE0000-memory.dmp

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memory/1580-12-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/1580-13-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/1580-3-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/1580-14-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/1580-6-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/1580-17-0x000001DBD3BC0000-0x000001DBD3BCA000-memory.dmp

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memory/1580-15-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/1580-20-0x000001DBD3F50000-0x000001DBD407F000-memory.dmp

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memory/1580-22-0x000001DBD3BD0000-0x000001DBD3BE0000-memory.dmp

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memory/1580-25-0x00007FFB47740000-0x00007FFB480E4000-memory.dmp

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memory/3004-26-0x00000000059F0000-0x0000000005A00000-memory.dmp

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memory/3004-23-0x0000000005810000-0x00000000058AC000-memory.dmp

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memory/3004-21-0x00000000746A2000-0x00000000746A3000-memory.dmp

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memory/3004-18-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/3004-27-0x0000000005E70000-0x0000000005ED6000-memory.dmp

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memory/3004-28-0x00000000059F0000-0x0000000005A00000-memory.dmp

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memory/3004-29-0x0000000007400000-0x0000000007492000-memory.dmp

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memory/3004-30-0x0000000007A60000-0x000000000801A000-memory.dmp

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