asyncrat | 819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c

Analysis

max time kernel
147s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240709-en
resource tags

arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
submitted
13-07-2024 11:58

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General

Target

819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe
Size

1.8MB
MD5

1237a749cdfe8065f70beb76026fbf58
SHA1

9e9febe7441cfaa52135c32ef1827af10bdc81bf
SHA256

819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c
SHA512

57217329975517c09c32c49be0da9c694a7492347c13024eef77203ee16d3caaba8e77235a991194bcab961071d7ff887a1e5501eafc234f52ee4f840d3e6166
SSDEEP

49152:zGXOVDKuXtwIarveK9plB91K70myaigDmXI:ieVDx6IaaK9plBXO03xgDmXI

Score

10^/10

asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Mutex

Aakn1515knAakn1515kn

Attributes

c2_url_file
http://update-checker-status.cc/OCB-Async.txt
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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3766757357-1293853516-507035944-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Vipertex\\Saten.exe\","	819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1612 set thread context of 4568	1612	819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe	79

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1612	819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe
Token: SeDebugPrivilege	4568	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 4568	1612	819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe	79
PID 1612 wrote to memory of 4568	1612	819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe	79
PID 1612 wrote to memory of 4568	1612	819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe	79
PID 1612 wrote to memory of 4568	1612	819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe	79
PID 1612 wrote to memory of 4568	1612	819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe	79
PID 1612 wrote to memory of 4568	1612	819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe	79
PID 1612 wrote to memory of 4568	1612	819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe	79
PID 1612 wrote to memory of 4568	1612	819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe	79

C:\Users\Admin\AppData\Local\Temp\819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe
"C:\Users\Admin\AppData\Local\Temp\819d812044fccc25692d6f0919850536d3486bdfdf296bea08ea3291fe1d425c.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1612-22-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-2353-0x00000000336E0000-0x0000000033C86000-memory.dmp

Filesize
5.6MB

Download
memory/1612-2-0x0000000005650000-0x0000000005722000-memory.dmp

Filesize
840KB

Download
memory/1612-8-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-12-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-64-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-66-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-62-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-60-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-56-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-54-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-52-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-50-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-46-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-26-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-42-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-40-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-38-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-36-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-34-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-30-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-28-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-44-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-1-0x0000000000AA0000-0x0000000000C7A000-memory.dmp

Filesize
1.9MB

Download
memory/1612-32-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-21-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-18-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-16-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-14-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-10-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-58-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-48-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-0-0x0000000074F3E000-0x0000000074F3F000-memory.dmp

Filesize
4KB

Download
memory/1612-6-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-4-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-3-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-2347-0x0000000074F30000-0x00000000756E1000-memory.dmp

Filesize
7.7MB

Download
memory/1612-2348-0x00000000058A0000-0x0000000005932000-memory.dmp

Filesize
584KB

Download
memory/1612-2349-0x0000000005960000-0x0000000005982000-memory.dmp

Filesize
136KB

Download
memory/1612-2350-0x0000000005C00000-0x0000000005F57000-memory.dmp

Filesize
3.3MB

Download
memory/1612-2351-0x0000000005A20000-0x0000000005A86000-memory.dmp

Filesize
408KB

Download
memory/1612-2352-0x0000000033090000-0x0000000033122000-memory.dmp

Filesize
584KB

Download
memory/1612-24-0x0000000005650000-0x000000000571B000-memory.dmp

Filesize
812KB

Download
memory/1612-2358-0x0000000074F30000-0x00000000756E1000-memory.dmp

Filesize
7.7MB

Download
memory/4568-2357-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4568-2359-0x0000000074F30000-0x00000000756E1000-memory.dmp

Filesize
7.7MB

Download
memory/4568-2360-0x0000000074F30000-0x00000000756E1000-memory.dmp

Filesize
7.7MB

Download
memory/4568-2361-0x0000000074F30000-0x00000000756E1000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads