asyncrat | fa44603f49250d641e2d89f2ffac8da2d6c28b744220c2014cd4562ad1b8b177

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29/01/2025, 03:43

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General

Target

fa44603f49250d641e2d89f2ffac8da2d6c28b744220c2014cd4562ad1b8b177.ps1
Size

456KB
MD5

0be72c691a3579556b65982fa2cfcae7
SHA1

20dcc09771531da63e1d4c1748696982d8e68e34
SHA256

fa44603f49250d641e2d89f2ffac8da2d6c28b744220c2014cd4562ad1b8b177
SHA512

0d01c73c0a5d49a0e1a57cdf656369ef5e334f9b789978d376532ba38f9512b2d62a9e79a46fd515689c06a8b3846ae5c037b8a33ff6c8f4b27ffffad53ca36f
SSDEEP

1536:zMdW/z20+u4dXNR8WrlDnOzewhq2staE/a9ktzj1EV82Wa1vw9eoi1SOiosGTQBi:zwnbNGQ/Jfz0

Score

10^/10

asyncrat 00000001 discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

00000001

81.10.39.58:7077

Mutex

AsyncMutex_alosh

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 2468 set thread context of 4904	2468	powershell.exe	84

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2468	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
2468	powershell.exe
2468	powershell.exe
4904	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2468	powershell.exe
Token: SeDebugPrivilege	4904	aspnet_compiler.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4904	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 4904	2468	powershell.exe	84
PID 2468 wrote to memory of 4904	2468	powershell.exe	84
PID 2468 wrote to memory of 4904	2468	powershell.exe	84
PID 2468 wrote to memory of 4904	2468	powershell.exe	84
PID 2468 wrote to memory of 4904	2468	powershell.exe	84
PID 2468 wrote to memory of 4904	2468	powershell.exe	84
PID 2468 wrote to memory of 4904	2468	powershell.exe	84
PID 2468 wrote to memory of 4904	2468	powershell.exe	84

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\fa44603f49250d641e2d89f2ffac8da2d6c28b744220c2014cd4562ad1b8b177.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2468
- 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:4904

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_yyyh5igb.4gq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2468-17-0x00007FFBC2930000-0x00007FFBC33F1000-memory.dmp

Filesize
10.8MB

Download
memory/2468-10-0x0000019668850000-0x0000019668872000-memory.dmp

Filesize
136KB

Download
memory/2468-11-0x00007FFBC2930000-0x00007FFBC33F1000-memory.dmp

Filesize
10.8MB

Download
memory/2468-12-0x00007FFBC2930000-0x00007FFBC33F1000-memory.dmp

Filesize
10.8MB

Download
memory/2468-13-0x0000019668880000-0x000001966888C000-memory.dmp

Filesize
48KB

Download
memory/2468-0-0x00007FFBC2933000-0x00007FFBC2935000-memory.dmp

Filesize
8KB

Download
memory/4904-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4904-18-0x000000007544E000-0x000000007544F000-memory.dmp

Filesize
4KB

Download
memory/4904-19-0x0000000075440000-0x0000000075BF0000-memory.dmp

Filesize
7.7MB

Download
memory/4904-20-0x0000000005A60000-0x0000000006004000-memory.dmp

Filesize
5.6MB

Download
memory/4904-21-0x00000000056A0000-0x0000000005732000-memory.dmp

Filesize
584KB

Download
memory/4904-22-0x0000000005690000-0x000000000569A000-memory.dmp

Filesize
40KB

Download
memory/4904-23-0x000000007544E000-0x000000007544F000-memory.dmp

Filesize
4KB

Download
memory/4904-24-0x0000000075440000-0x0000000075BF0000-memory.dmp

Filesize
7.7MB

Download