asyncrat | 3efff01d7236dc49abf420b40c3460c89ffb3957933ba518dc5ad60d12261c35

Analysis

max time kernel
146s
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
09-12-2024 06:02

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General

Target

801.ps1
Size

182KB
MD5

466bd5902510f9ad176108dd1c5f7979
SHA1

586d8326df861aa4968495436a5e91beef85c585
SHA256

3efff01d7236dc49abf420b40c3460c89ffb3957933ba518dc5ad60d12261c35
SHA512

c2b1c10ad2bdb6f222e48e43f973e9c1c09ed66857b6e59cc2d06b26f71557d4cb5a840779633b8897fd4c37c1ab75226935e9c5d9de4e4ab2fddfa4fae93529
SSDEEP

3072:4EEkBxJ3JygS3lX0ctuyHKCEIqQWVUBFJHFe730zz7F0ejBW/IeDFUJHFZuyEHB3:hv5ygS3hjtuyHKCEIqQWVUBFJHFe73N7

Score

10^/10

asyncrat default discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

A 13

Botnet

Default

windows-cam.casacam.net:801

Mutex

AsyncMutex_6SI8OkPnkcvfg

Attributes

delay
3
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1764 set thread context of 2184	1764	powershell.exe	83

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1764	powershell.exe

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_compiler.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1764	powershell.exe
1764	powershell.exe
2184	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1764	powershell.exe
Token: SeDebugPrivilege	2184	aspnet_compiler.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2184	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1764 wrote to memory of 2184	1764	powershell.exe	83
PID 1764 wrote to memory of 2184	1764	powershell.exe	83
PID 1764 wrote to memory of 2184	1764	powershell.exe	83
PID 1764 wrote to memory of 2184	1764	powershell.exe	83
PID 1764 wrote to memory of 2184	1764	powershell.exe	83
PID 1764 wrote to memory of 2184	1764	powershell.exe	83
PID 1764 wrote to memory of 2184	1764	powershell.exe	83
PID 1764 wrote to memory of 2184	1764	powershell.exe	83

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\801.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1764
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2184

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_riu0q0z5.oqf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1764-17-0x00007FFEBCFA0000-0x00007FFEBDA61000-memory.dmp

Filesize
10.8MB

Download
memory/1764-6-0x000001DBBB9E0000-0x000001DBBBA02000-memory.dmp

Filesize
136KB

Download
memory/1764-11-0x00007FFEBCFA0000-0x00007FFEBDA61000-memory.dmp

Filesize
10.8MB

Download
memory/1764-12-0x00007FFEBCFA0000-0x00007FFEBDA61000-memory.dmp

Filesize
10.8MB

Download
memory/1764-13-0x000001DBBB9D0000-0x000001DBBB9DC000-memory.dmp

Filesize
48KB

Download
memory/1764-0-0x00007FFEBCFA3000-0x00007FFEBCFA5000-memory.dmp

Filesize
8KB

Download
memory/2184-14-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2184-18-0x000000007503E000-0x000000007503F000-memory.dmp

Filesize
4KB

Download
memory/2184-19-0x0000000075030000-0x00000000757E0000-memory.dmp

Filesize
7.7MB

Download
memory/2184-20-0x0000000005F80000-0x0000000006524000-memory.dmp

Filesize
5.6MB

Download
memory/2184-21-0x0000000005BB0000-0x0000000005C42000-memory.dmp

Filesize
584KB

Download
memory/2184-22-0x0000000005BA0000-0x0000000005BAA000-memory.dmp

Filesize
40KB

Download
memory/2184-23-0x000000007503E000-0x000000007503F000-memory.dmp

Filesize
4KB

Download
memory/2184-24-0x0000000075030000-0x00000000757E0000-memory.dmp

Filesize
7.7MB

Download