xworm | f82b532884761c57a09d81652ff001b7d0acebc7d91ac4aa31e28aecce6005a7

Analysis

max time kernel
149s
max time network
148s
platform
windows11-21h2_x64
resource
win11-20251231-en
resource tags

arch:x64arch:x86image:win11-20251231-enlocale:en-usos:windows11-21h2-x64system
submitted
15/01/2026, 03:44

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General

Target
product_specification.jse
Size 172KB
Sample260115-eammtsh16d
SHA256 7e942619c76b280d6db38782d5180dbbfabea418c2aa85b2d497738c8d618420
MD5 c9c388e16de55684e39482229c7cdd54
SHA1 3dc1356192f82d539b3e99cebeab7117b78e3cfa
SHA512 df8c752a84ff7b45b08eb7e11900aa7f94024e1eb5d1d8552b3f5fa1b06fe071a1c843228b6aca9b8572949d1b43ab7e2d40e8a8a6073a91c6a0717d7664bf89
SSDEEP 3072:SHro53zXZeBRrUyKyH3bq80CmCeAIfrCG+NgrURtck:SU53zZeB2yKy1mCeRf2G+N5ck
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

discovery execution xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

185.208.156.243:7099

Mutex

G08T4qvnb13kYZnR

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4576-14-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm

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

Badlisted process makes network request 1 IoCs

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

flow	pid	Process
1	4584	WScript.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4864 set thread context of 4576	4864	powershell.exe	79

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4864	powershell.exe

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

System Information Discovery
T1082

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	Aspnet_compiler.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4576	Aspnet_compiler.exe

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4576	Aspnet_compiler.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe
4864	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4864	powershell.exe
Token: SeDebugPrivilege	4576	Aspnet_compiler.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4576	Aspnet_compiler.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4584 wrote to memory of 4864	4584	WScript.exe	77
PID 4864 wrote to memory of 4576	4864	powershell.exe	79
PID 4864 wrote to memory of 4576	4864	powershell.exe	79
PID 4864 wrote to memory of 4576	4864	powershell.exe	79
PID 4864 wrote to memory of 4576	4864	powershell.exe	79
PID 4864 wrote to memory of 4576	4864	powershell.exe	79

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\product_specification.jse"
1⤵
- Badlisted process makes network request
- Suspicious use of WriteProcessMemory
PID:4584
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -nop -ep bypass -file "C:\Temp\FADKNGAXBY.ps1"
  2⤵
  - Suspicious use of SetThreadContext
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4864
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Aspnet_compiler.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4576

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

FADKNGAXBY.ps1

Path C:\Temp\FADKNGAXBY.ps1
Size 225KB
SHA256 aef327fcbd792f763f374dea26310f6349b71d772907f4166325682266d07127
MD5 64fdbb65095866449dba3beae53f0065
SHA1 dc481bbc675b42be170acec4d2b61a75417dc7e7
SHA512 c87044dbccda786638e04f29336e147a0f38fa574c652d1214989e6ca9b151d32c2fcb983ee6e25e617e975ca6242686a0259dd5e9847dc8280a05d63c4f947d
SSDEEP 3072:GrNlrIl2+KLM5Qh6VLxe7vn+9YxBHLZOB3qSa0E6yBOF/pPHUf7bRZ12jDqBo+CD:GxlrIBKLse7kKSjrvUjt+j2x0
TLSH
T1D83412742E21E9AE9BF1E37731A2E448F32747136175D09ABA4CE4502B3A15CC1BEF94
MD5 SHA1 SHA512 SSDEEP TLSH

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__PSScriptPolicyTest_zq0ka1qv.saw.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zq0ka1qv.saw.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/4576-15-0x00000000056B0000-0x000000000574C000-memory.dmp

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memory/4576-22-0x0000000006AE0000-0x0000000006B46000-memory.dmp

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memory/4576-18-0x0000000005FC0000-0x0000000005FCA000-memory.dmp

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memory/4576-17-0x0000000006010000-0x00000000060A2000-memory.dmp

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memory/4576-16-0x00000000061E0000-0x0000000006786000-memory.dmp

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memory/4576-14-0x0000000000400000-0x0000000000410000-memory.dmp

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memory/4864-11-0x00000196B28B0000-0x00000196B28C0000-memory.dmp

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memory/4864-13-0x00000196B28A0000-0x00000196B28B0000-memory.dmp

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memory/4864-3-0x00000196B28B0000-0x00000196B28C0000-memory.dmp

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memory/4864-10-0x00000196B2930000-0x00000196B2952000-memory.dmp

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memory/4864-19-0x00000196B28B0000-0x00000196B28C0000-memory.dmp

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memory/4864-20-0x00000196B28B0000-0x00000196B28C0000-memory.dmp

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memory/4864-21-0x00000196B28B0000-0x00000196B28C0000-memory.dmp

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memory/4864-2-0x00000196B28B0000-0x00000196B28C0000-memory.dmp

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