asyncrat | ec4b0ef32d330158006ce6d20c41eefc67924b50d95364cc961e8b008ed93d4b

Analysis

max time kernel
137s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2024, 01:28

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General

Target
2fc1ec39637b7e1f46ed594c12c80fb8186b1fbbe6cd2893ffdc36690505a5a7.ps1
Size 553KB
Sample240802-bvmxjsxdpn
SHA256 2fc1ec39637b7e1f46ed594c12c80fb8186b1fbbe6cd2893ffdc36690505a5a7
MD5 12e2abc893dc6797d3fa02525df2b9e2
SHA1 10f78d47a520c02525d6a33ae9f3698c1de02413
SHA512 b960fb6110be0f77e65054cae7f8d935cec4cd6f55a782fe0f6c7dcc5ee2630d229fdf0ab218fae856a2adb39b6b95237e4ed75cd707bd895d5ba2035e42a7a4
SSDEEP 1536:kDh8DyXBs84VhDEak0EyxWq0Z3IMUlaE4g7:kDhiyXBs84VhDEakbyxWq0Zk
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

asyncrat we need money discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

we need money

backwork07.ddns.net:6666

Mutex

AsyncMutex_VVXVZFyTYtHWDAzB

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3716 set thread context of 1596	3716	powershell.exe	89

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3716	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	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3716	powershell.exe
3716	powershell.exe
3716	powershell.exe
3716	powershell.exe
3716	powershell.exe
3716	powershell.exe
1596	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3716	powershell.exe
Token: SeDebugPrivilege	1596	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1596	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3716 wrote to memory of 1776	3716	powershell.exe	87
PID 3716 wrote to memory of 1776	3716	powershell.exe	87
PID 3716 wrote to memory of 1776	3716	powershell.exe	87
PID 3716 wrote to memory of 4884	3716	powershell.exe	88
PID 3716 wrote to memory of 4884	3716	powershell.exe	88
PID 3716 wrote to memory of 4884	3716	powershell.exe	88
PID 3716 wrote to memory of 1596	3716	powershell.exe	89
PID 3716 wrote to memory of 1596	3716	powershell.exe	89
PID 3716 wrote to memory of 1596	3716	powershell.exe	89
PID 3716 wrote to memory of 1596	3716	powershell.exe	89
PID 3716 wrote to memory of 1596	3716	powershell.exe	89
PID 3716 wrote to memory of 1596	3716	powershell.exe	89
PID 3716 wrote to memory of 1596	3716	powershell.exe	89
PID 3716 wrote to memory of 1596	3716	powershell.exe	89

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\2fc1ec39637b7e1f46ed594c12c80fb8186b1fbbe6cd2893ffdc36690505a5a7.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3716
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:1776
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:4884
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1596

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

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Downloads

__PSScriptPolicyTest_lzccdooq.azn.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lzccdooq.azn.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/1596-19-0x000000007488E000-0x000000007488F000-memory.dmp

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memory/1596-25-0x0000000074880000-0x0000000075030000-memory.dmp

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memory/1596-24-0x000000007488E000-0x000000007488F000-memory.dmp

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memory/1596-23-0x0000000001970000-0x000000000197A000-memory.dmp

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memory/1596-22-0x00000000054F0000-0x0000000005582000-memory.dmp

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memory/1596-14-0x0000000000400000-0x0000000000416000-memory.dmp

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memory/1596-21-0x00000000059A0000-0x0000000005F44000-memory.dmp

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memory/1596-20-0x0000000074880000-0x0000000075030000-memory.dmp

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memory/3716-12-0x00007FFF31BD0000-0x00007FFF32691000-memory.dmp

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memory/3716-18-0x00007FFF31BD0000-0x00007FFF32691000-memory.dmp

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memory/3716-17-0x00007FFF31BD0000-0x00007FFF32691000-memory.dmp

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memory/3716-13-0x0000026FEDF80000-0x0000026FEDF9C000-memory.dmp

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memory/3716-0-0x00007FFF31BD3000-0x00007FFF31BD5000-memory.dmp

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memory/3716-11-0x00007FFF31BD0000-0x00007FFF32691000-memory.dmp

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memory/3716-6-0x0000026FEDC50000-0x0000026FEDC72000-memory.dmp

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