xworm | 0c17eb3ab5d7fdff6fcde1fee32a4183ec0928aa7ae77a74b140a128ed671b84

Analysis

max time kernel
93s
max time network
122s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250217-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250217-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
07/03/2025, 22:31

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General

Target

XClient_encrypted_obf_bat.bat
Size

540KB
MD5

7691f0a3619e34794c2d9f8acd645e30
SHA1

666541b63a9f6b808765e45b1238a2935b3be7a8
SHA256

0c17eb3ab5d7fdff6fcde1fee32a4183ec0928aa7ae77a74b140a128ed671b84
SHA512

76750941a254405f4477f989315db2ba5507dc8a6bb6c1091b4f0510a884e637337d18d27910766b88ae1038a1dd36f2ecbddc504e8b6220522cc509fde9038e
SSDEEP

6144:qOaa4GFhnfN27m5lxsVjLLWHKTkrQk5zb9zRvphlQ0/vxiwEilMwDEh9HwOf6Lnr:QY7215Wbb9BXf7/BV7v

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

74.12.129.6:7000

Mutex

nPR0rvUPpd6dZNUx

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/4656-14-0x000001C3C2D50000-0x000001C3C2D5E000-memory.dmp	family_xworm

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
19	4656	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4656	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4656	powershell.exe
4656	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4656	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2696 wrote to memory of 4656	2696	cmd.exe	81
PID 2696 wrote to memory of 4656	2696	cmd.exe	81

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\XClient_encrypted_obf_bat.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -exec bypass -WindowStyle Hidden -C "iex ([Text.Encoding]::UTF8.GetString([Convert]::FromBase64String((Get-Content 'C:\Users\Admin\AppData\Local\Temp\XClient_encrypted_obf_bat.bat' -raw | Select-String (':' + ':KDOT::(.*)')).Matches.Groups[1].Value)))"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ahc4vamy.csz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4656-0-0x00007FF8A6793000-0x00007FF8A6795000-memory.dmp

Filesize
8KB

Download
memory/4656-10-0x000001C3C2B20000-0x000001C3C2B42000-memory.dmp

Filesize
136KB

Download
memory/4656-11-0x00007FF8A6790000-0x00007FF8A7252000-memory.dmp

Filesize
10.8MB

Download
memory/4656-12-0x00007FF8A6790000-0x00007FF8A7252000-memory.dmp

Filesize
10.8MB

Download
memory/4656-13-0x00007FF8A6790000-0x00007FF8A7252000-memory.dmp

Filesize
10.8MB

Download
memory/4656-14-0x000001C3C2D50000-0x000001C3C2D5E000-memory.dmp

Filesize
56KB

Download
memory/4656-15-0x00007FF8A6793000-0x00007FF8A6795000-memory.dmp

Filesize
8KB

Download
memory/4656-16-0x00007FF8A6790000-0x00007FF8A7252000-memory.dmp

Filesize
10.8MB

Download
memory/4656-17-0x00007FF8A6790000-0x00007FF8A7252000-memory.dmp

Filesize
10.8MB

Download